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Conserved domains on  [gi|145335260|ref|NP_172285|]
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alpha carbonic anhydrase 5 [Arabidopsis thaliana]

Protein Classification

carbonic anhydrase family protein( domain architecture ID 10123236)

carbonic anhydrase family protein similar to carbonic anhydrase, which catalyzes the reversible hydration of gaseous carbon dioxide to carbonic acid

CATH:  3.10.200.10
Gene Ontology:  GO:0004089|GO:0008270|GO:0006730
PubMed:  10978542|18336305
SCOP:  4002732

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
alpha_CA_prokaryotic_like cd03124
Carbonic anhydrase alpha, prokaryotic-like subfamily. Carbonic anhydrases (CAs) are ...
44-265 7.04e-98

Carbonic anhydrase alpha, prokaryotic-like subfamily. Carbonic anhydrases (CAs) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism: a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. Most alpha CAs are monomeric enzymes. The zinc ion is complexed by three histidines. This sub-family includes bacterial carbonic anhydrase alpha, as well as plant enzymes such as tobacco nectarin III and yam dioscorin and, carbonic anhydrases from molluscs, such as nacrein, which are part of the organic matrix layer in shells. Other members of this family may be involved in maintaining pH balance, in facilitating transport of carbon dioxide or carbonic acid, or in sensing carbon dioxide levels in the environment. Dioscorin is the major storage protein of yam tubers and may play a role as an antioxidant. Tobacco Nectarin may play a role in the maintenace of pH and oxidative balance in nectar. Mollusc nacrein may participate in calcium carbonate crystal formation of the nacreous layer. This subfamily also includes three alpha carbonic anhydrases from Chlamydomonas reinhardtii (CAH 1-3). CAHs1-2 are localized in the periplasmic space. CAH1 faciliates the movement of carbon dioxide across the plasma membrane when the medium is alkaline. CAH3 is localized to the thylakoid lumen and provides CO2 to Rubisco.


:

Pssm-ID: 239398 [Multi-domain]  Cd Length: 216  Bit Score: 286.09  E-value: 7.04e-98
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  44 GPENWGRLKPEWAMCGKGNMQSPIDLTDKRVLIDHnLGYLRSQYLPSNATIKNRGHDIMMKFEGgnAGLGITINGTEYKL 123
Cdd:cd03124    1 GPEHWGNLDPEFALCATGKNQSPIDITTKAVVSDK-LPPLNYNYKPTSATLVNNGHTIQVNFEG--NGGTLTIDGETYQL 77
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 124 QQIHWHSPSEHTLNGKRFVLEEHMVHQSKDGRNAVVAFFYKLGKPDYFLLTLERYLKRITDThesQEFVEMV-HPRTFGF 202
Cdd:cd03124   78 LQFHFHSPSEHLINGKRYPLEAHLVHKSKDGQLAVVAVLFEEGKENPFLKKILDNMPKKEGT---EVNLPAIlDPNELLP 154
                        170       180       190       200       210       220
                 ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 145335260 203 ESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDQsnsNARPLQRKNERPV 265
Cdd:cd03124  155 ESRSYYRYEGSLTTPPCSEGVRWIVLKQPITISKEQLAKFRAAVYPN---NARPVQPLNGREV 214
 
Name Accession Description Interval E-value
alpha_CA_prokaryotic_like cd03124
Carbonic anhydrase alpha, prokaryotic-like subfamily. Carbonic anhydrases (CAs) are ...
44-265 7.04e-98

Carbonic anhydrase alpha, prokaryotic-like subfamily. Carbonic anhydrases (CAs) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism: a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. Most alpha CAs are monomeric enzymes. The zinc ion is complexed by three histidines. This sub-family includes bacterial carbonic anhydrase alpha, as well as plant enzymes such as tobacco nectarin III and yam dioscorin and, carbonic anhydrases from molluscs, such as nacrein, which are part of the organic matrix layer in shells. Other members of this family may be involved in maintaining pH balance, in facilitating transport of carbon dioxide or carbonic acid, or in sensing carbon dioxide levels in the environment. Dioscorin is the major storage protein of yam tubers and may play a role as an antioxidant. Tobacco Nectarin may play a role in the maintenace of pH and oxidative balance in nectar. Mollusc nacrein may participate in calcium carbonate crystal formation of the nacreous layer. This subfamily also includes three alpha carbonic anhydrases from Chlamydomonas reinhardtii (CAH 1-3). CAHs1-2 are localized in the periplasmic space. CAH1 faciliates the movement of carbon dioxide across the plasma membrane when the medium is alkaline. CAH3 is localized to the thylakoid lumen and provides CO2 to Rubisco.


Pssm-ID: 239398 [Multi-domain]  Cd Length: 216  Bit Score: 286.09  E-value: 7.04e-98
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  44 GPENWGRLKPEWAMCGKGNMQSPIDLTDKRVLIDHnLGYLRSQYLPSNATIKNRGHDIMMKFEGgnAGLGITINGTEYKL 123
Cdd:cd03124    1 GPEHWGNLDPEFALCATGKNQSPIDITTKAVVSDK-LPPLNYNYKPTSATLVNNGHTIQVNFEG--NGGTLTIDGETYQL 77
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 124 QQIHWHSPSEHTLNGKRFVLEEHMVHQSKDGRNAVVAFFYKLGKPDYFLLTLERYLKRITDThesQEFVEMV-HPRTFGF 202
Cdd:cd03124   78 LQFHFHSPSEHLINGKRYPLEAHLVHKSKDGQLAVVAVLFEEGKENPFLKKILDNMPKKEGT---EVNLPAIlDPNELLP 154
                        170       180       190       200       210       220
                 ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 145335260 203 ESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDQsnsNARPLQRKNERPV 265
Cdd:cd03124  155 ESRSYYRYEGSLTTPPCSEGVRWIVLKQPITISKEQLAKFRAAVYPN---NARPVQPLNGREV 214
Cah COG3338
Carbonic anhydrase [Inorganic ion transport and metabolism];
12-265 2.33e-76

Carbonic anhydrase [Inorganic ion transport and metabolism];


Pssm-ID: 442567 [Multi-domain]  Cd Length: 247  Bit Score: 232.47  E-value: 2.33e-76
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  12 LIFISITIVSSSPDHGEVEDETQFNYEkkGEKGPENWGRLKPEWAMCGKGNMQSPIDLTDKrvlIDHNLGYLRSQYLPSN 91
Cdd:COG3338    5 LLLALLLAAALPAAAAAAASAPHWSYE--GETGPEHWGELSPEFATCATGKNQSPIDIRTA---IKADLPPLKFDYKPTP 79
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  92 ATIKNRGHDIMMKFEGGNaglGITINGTEYKLQQIHWHSPSEHTLNGKRFVLEEHMVHQSKDGRNAVVAFFYKLGKPDYF 171
Cdd:COG3338   80 LEIVNNGHTIQVNVDPGS---TLTVDGKRYELKQFHFHTPSEHTINGKSYPMEAHLVHKDADGELAVVGVLFEEGAENPA 156
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 172 LLTLERYLKriTDTHESQEFVEMVHPRTFGFESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDqsn 251
Cdd:COG3338  157 LAKLWANLP--LEAGEEVALDATIDLNDLLPEDRSYYRYSGSLTTPPCSEGVLWIVLKQPITVSAEQIEAFARLYPN--- 231
                        250
                 ....*....|....
gi 145335260 252 sNARPLQRKNERPV 265
Cdd:COG3338  232 -NARPVQPLNGRLI 244
PLN02179 PLN02179
carbonic anhydrase
9-231 1.76e-75

carbonic anhydrase


Pssm-ID: 177835  Cd Length: 235  Bit Score: 229.87  E-value: 1.76e-75
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260   9 VFF--LIFISITIVSSSpdhgEVEDETQFNYEKKGEKGPENWGRLKPEWAMCGKGNMQSPIDLTDKRVLIDHNLGYLRsQ 86
Cdd:PLN02179  13 VFFidLFFPNILLVYAR----EIGNKPLFTYKQKTEKGPAEWGKLNPQWKVCSTGKYQSPIDLTDERVSLIHDQALSR-H 87
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  87 YLPSNATIKNRGHDIMMKFEGgNAGlGITINGTEYKLQQIHWHSPSEHTLNGKRFVLEEHMVHQSKDGRNAVVAFFYKLG 166
Cdd:PLN02179  88 YKPAPAVIQSRGHDVMVSWKG-DAG-KITIHQTDYKLVQCHWHSPSEHTINGTSYDLELHMVHTSASGKTAVVGVLYKLG 165
                        170       180       190       200       210       220
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 145335260 167 KPDYFLLTLeryLKRITDTHESQEFVEMVHPRTFGFESKHYYRFIGSLTTPPCSENVIWTISKEM 231
Cdd:PLN02179 166 EPDEFLTKL---LNGIKGVGKKEINLGIVDPRDIRFETNNFYRYIGSLTIPPCTEGVIWTVVKRV 227
Carb_anhydrase smart01057
Eukaryotic-type carbonic anhydrase; Carbonic anhydrases are zinc metalloenzymes which catalyse ...
35-264 1.28e-69

Eukaryotic-type carbonic anhydrase; Carbonic anhydrases are zinc metalloenzymes which catalyse the reversible hydration of carbon dioxide to bicarbonate.. CAs have essential roles in facilitating the transport of carbon dioxide and protons in the intracellular space, across biological membranes and in the layers of the extracellular space; they are also involved in many other processes, from respiration and photosynthesis in eukaryotes to cyanate degradation in prokaryotes. There are five known evolutionarily distinct CA families (alpha, beta, gamma, delta and epsilon) that have no significant sequence identity and have structurally distinct overall folds. Some CAs are membrane-bound, while others act in the cytosol; there are several related proteins that lack enzymatic activity. The active site of alpha-CAs is well described, consisting of a zinc ion coordinated through 3 histidine residues and a water molecule/hydroxide ion that acts as a potent nucleophile. The enzyme employs a two-step mechanism: in the first step, there is a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide; in the second step, the active site is regenerated by the ionisation of the zinc-bound water molecule and the removal of a proton from the active site. Beta- and gamma-CAs also employ a zinc hydroxide mechanism, although at least some beta-class enzymes do not have water directly coordinated to the metal ion.


Pssm-ID: 215000 [Multi-domain]  Cd Length: 247  Bit Score: 215.26  E-value: 1.28e-69
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260    35 FNYEkkGEKGPENWGRLKPEWAmcgKGNMQSPIDLTDKRVLIDHNLGYLRSQY-LPSNATIKNRGHDIMMKFEGGNAGLG 113
Cdd:smart01057   1 WGYE--GKNGPEHWGKLDPPFC---GGKRQSPIDIVTAEAQYDPSLKPLKLSYdQPTAKRILNNGHTVQVNFDDDGSTLS 75
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260   114 ITINGTEYKLQQIHWHSP------SEHTLNGKRFVLEEHMVH----------QSKDGRNAVVAFFYKLGKPDYFLL-TLE 176
Cdd:smart01057  76 GGPLPGRYRLKQFHFHWGgsdsegSEHTIDGKRFPLELHLVHynskgsfseaVSKPGGLAVVAVFFKVGAEENPALqAIL 155
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260   177 RYLKRITdTHESQEFVEMVHPRTF-GFESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDQSNS--- 252
Cdd:smart01057 156 DHLPLIK-YKGQETELTPFDLSSLlPASTRHYYTYNGSLTTPPCSEGVTWIVFKEPITISTEQLEKFRTLLPMEGNEplv 234
                          250
                   ....*....|...
gi 145335260   253 -NARPLQRKNERP 264
Cdd:smart01057 235 nNARPLQPLNGRV 247
Carb_anhydrase pfam00194
Eukaryotic-type carbonic anhydrase;
44-265 1.21e-51

Eukaryotic-type carbonic anhydrase;


Pssm-ID: 459707 [Multi-domain]  Cd Length: 252  Bit Score: 169.37  E-value: 1.21e-51
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260   44 GPENWGRlkpEWAMCGkGNMQSPIDLTDKRVLIDHNLGYLRSQY---LPSNATIKNRGHDIMMKFEGGNaglGITING-- 118
Cdd:pfam00194   2 GPEHWGK---VYPSCG-GKRQSPINIDTRKVRYDPSLPPLTFQGydvPPGKNTLTNNGHTVQVSLDDGD---PSTISGgp 74
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  119 --TEYKLQQI--HWHSP----SEHTLNGKRFVLEEHMVHQSKDGRN-----------AVVAFFYKLGKPDY-FLLTLERY 178
Cdd:pfam00194  75 laTRYRLVQFhfHWGSTdsrgSEHTIDGKRYPAELHIVHYNSKYKSfdeaakhpdglAVLGVFFEVGDENNpYLQPIVSA 154
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  179 LKRITDTHESQEFVEMVHPRTFGFESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDQSN------- 251
Cdd:pfam00194 155 LDNIKYKGKSVLLPPFDLSDLLPEDLTSYYTYNGSLTTPPCSESVTWIVFKEPISISEEQLEAFRTLLFSDGGeeprplv 234
                         250
                  ....*....|....
gi 145335260  252 SNARPLQRKNERPV 265
Cdd:pfam00194 235 NNFRPTQPLNGRVV 248
 
Name Accession Description Interval E-value
alpha_CA_prokaryotic_like cd03124
Carbonic anhydrase alpha, prokaryotic-like subfamily. Carbonic anhydrases (CAs) are ...
44-265 7.04e-98

Carbonic anhydrase alpha, prokaryotic-like subfamily. Carbonic anhydrases (CAs) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism: a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. Most alpha CAs are monomeric enzymes. The zinc ion is complexed by three histidines. This sub-family includes bacterial carbonic anhydrase alpha, as well as plant enzymes such as tobacco nectarin III and yam dioscorin and, carbonic anhydrases from molluscs, such as nacrein, which are part of the organic matrix layer in shells. Other members of this family may be involved in maintaining pH balance, in facilitating transport of carbon dioxide or carbonic acid, or in sensing carbon dioxide levels in the environment. Dioscorin is the major storage protein of yam tubers and may play a role as an antioxidant. Tobacco Nectarin may play a role in the maintenace of pH and oxidative balance in nectar. Mollusc nacrein may participate in calcium carbonate crystal formation of the nacreous layer. This subfamily also includes three alpha carbonic anhydrases from Chlamydomonas reinhardtii (CAH 1-3). CAHs1-2 are localized in the periplasmic space. CAH1 faciliates the movement of carbon dioxide across the plasma membrane when the medium is alkaline. CAH3 is localized to the thylakoid lumen and provides CO2 to Rubisco.


Pssm-ID: 239398 [Multi-domain]  Cd Length: 216  Bit Score: 286.09  E-value: 7.04e-98
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  44 GPENWGRLKPEWAMCGKGNMQSPIDLTDKRVLIDHnLGYLRSQYLPSNATIKNRGHDIMMKFEGgnAGLGITINGTEYKL 123
Cdd:cd03124    1 GPEHWGNLDPEFALCATGKNQSPIDITTKAVVSDK-LPPLNYNYKPTSATLVNNGHTIQVNFEG--NGGTLTIDGETYQL 77
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 124 QQIHWHSPSEHTLNGKRFVLEEHMVHQSKDGRNAVVAFFYKLGKPDYFLLTLERYLKRITDThesQEFVEMV-HPRTFGF 202
Cdd:cd03124   78 LQFHFHSPSEHLINGKRYPLEAHLVHKSKDGQLAVVAVLFEEGKENPFLKKILDNMPKKEGT---EVNLPAIlDPNELLP 154
                        170       180       190       200       210       220
                 ....*....|....*....|....*....|....*....|....*....|....*....|...
gi 145335260 203 ESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDQsnsNARPLQRKNERPV 265
Cdd:cd03124  155 ESRSYYRYEGSLTTPPCSEGVRWIVLKQPITISKEQLAKFRAAVYPN---NARPVQPLNGREV 214
Cah COG3338
Carbonic anhydrase [Inorganic ion transport and metabolism];
12-265 2.33e-76

Carbonic anhydrase [Inorganic ion transport and metabolism];


Pssm-ID: 442567 [Multi-domain]  Cd Length: 247  Bit Score: 232.47  E-value: 2.33e-76
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  12 LIFISITIVSSSPDHGEVEDETQFNYEkkGEKGPENWGRLKPEWAMCGKGNMQSPIDLTDKrvlIDHNLGYLRSQYLPSN 91
Cdd:COG3338    5 LLLALLLAAALPAAAAAAASAPHWSYE--GETGPEHWGELSPEFATCATGKNQSPIDIRTA---IKADLPPLKFDYKPTP 79
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  92 ATIKNRGHDIMMKFEGGNaglGITINGTEYKLQQIHWHSPSEHTLNGKRFVLEEHMVHQSKDGRNAVVAFFYKLGKPDYF 171
Cdd:COG3338   80 LEIVNNGHTIQVNVDPGS---TLTVDGKRYELKQFHFHTPSEHTINGKSYPMEAHLVHKDADGELAVVGVLFEEGAENPA 156
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 172 LLTLERYLKriTDTHESQEFVEMVHPRTFGFESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDqsn 251
Cdd:COG3338  157 LAKLWANLP--LEAGEEVALDATIDLNDLLPEDRSYYRYSGSLTTPPCSEGVLWIVLKQPITVSAEQIEAFARLYPN--- 231
                        250
                 ....*....|....
gi 145335260 252 sNARPLQRKNERPV 265
Cdd:COG3338  232 -NARPVQPLNGRLI 244
PLN02179 PLN02179
carbonic anhydrase
9-231 1.76e-75

carbonic anhydrase


Pssm-ID: 177835  Cd Length: 235  Bit Score: 229.87  E-value: 1.76e-75
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260   9 VFF--LIFISITIVSSSpdhgEVEDETQFNYEKKGEKGPENWGRLKPEWAMCGKGNMQSPIDLTDKRVLIDHNLGYLRsQ 86
Cdd:PLN02179  13 VFFidLFFPNILLVYAR----EIGNKPLFTYKQKTEKGPAEWGKLNPQWKVCSTGKYQSPIDLTDERVSLIHDQALSR-H 87
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  87 YLPSNATIKNRGHDIMMKFEGgNAGlGITINGTEYKLQQIHWHSPSEHTLNGKRFVLEEHMVHQSKDGRNAVVAFFYKLG 166
Cdd:PLN02179  88 YKPAPAVIQSRGHDVMVSWKG-DAG-KITIHQTDYKLVQCHWHSPSEHTINGTSYDLELHMVHTSASGKTAVVGVLYKLG 165
                        170       180       190       200       210       220
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 145335260 167 KPDYFLLTLeryLKRITDTHESQEFVEMVHPRTFGFESKHYYRFIGSLTTPPCSENVIWTISKEM 231
Cdd:PLN02179 166 EPDEFLTKL---LNGIKGVGKKEINLGIVDPRDIRFETNNFYRYIGSLTIPPCTEGVIWTVVKRV 227
Carb_anhydrase smart01057
Eukaryotic-type carbonic anhydrase; Carbonic anhydrases are zinc metalloenzymes which catalyse ...
35-264 1.28e-69

Eukaryotic-type carbonic anhydrase; Carbonic anhydrases are zinc metalloenzymes which catalyse the reversible hydration of carbon dioxide to bicarbonate.. CAs have essential roles in facilitating the transport of carbon dioxide and protons in the intracellular space, across biological membranes and in the layers of the extracellular space; they are also involved in many other processes, from respiration and photosynthesis in eukaryotes to cyanate degradation in prokaryotes. There are five known evolutionarily distinct CA families (alpha, beta, gamma, delta and epsilon) that have no significant sequence identity and have structurally distinct overall folds. Some CAs are membrane-bound, while others act in the cytosol; there are several related proteins that lack enzymatic activity. The active site of alpha-CAs is well described, consisting of a zinc ion coordinated through 3 histidine residues and a water molecule/hydroxide ion that acts as a potent nucleophile. The enzyme employs a two-step mechanism: in the first step, there is a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide; in the second step, the active site is regenerated by the ionisation of the zinc-bound water molecule and the removal of a proton from the active site. Beta- and gamma-CAs also employ a zinc hydroxide mechanism, although at least some beta-class enzymes do not have water directly coordinated to the metal ion.


Pssm-ID: 215000 [Multi-domain]  Cd Length: 247  Bit Score: 215.26  E-value: 1.28e-69
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260    35 FNYEkkGEKGPENWGRLKPEWAmcgKGNMQSPIDLTDKRVLIDHNLGYLRSQY-LPSNATIKNRGHDIMMKFEGGNAGLG 113
Cdd:smart01057   1 WGYE--GKNGPEHWGKLDPPFC---GGKRQSPIDIVTAEAQYDPSLKPLKLSYdQPTAKRILNNGHTVQVNFDDDGSTLS 75
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260   114 ITINGTEYKLQQIHWHSP------SEHTLNGKRFVLEEHMVH----------QSKDGRNAVVAFFYKLGKPDYFLL-TLE 176
Cdd:smart01057  76 GGPLPGRYRLKQFHFHWGgsdsegSEHTIDGKRFPLELHLVHynskgsfseaVSKPGGLAVVAVFFKVGAEENPALqAIL 155
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260   177 RYLKRITdTHESQEFVEMVHPRTF-GFESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDQSNS--- 252
Cdd:smart01057 156 DHLPLIK-YKGQETELTPFDLSSLlPASTRHYYTYNGSLTTPPCSEGVTWIVFKEPITISTEQLEKFRTLLPMEGNEplv 234
                          250
                   ....*....|...
gi 145335260   253 -NARPLQRKNERP 264
Cdd:smart01057 235 nNARPLQPLNGRV 247
alpha_CA cd00326
Carbonic anhydrase alpha (vertebrate-like) group. Carbonic anhydrases (CAs) are ...
61-265 8.04e-67

Carbonic anhydrase alpha (vertebrate-like) group. Carbonic anhydrases (CAs) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism: a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. There are three evolutionary distinct groups - alpha, beta and gamma carbonic anhydrases - which show no significant sequence identity or structural similarity. Most alpha CAs are monomeric enzymes. The zinc ion is complexed by three histidine residues and a fourth conserved histidine plays a potential role in proton transfer.


Pssm-ID: 238200  Cd Length: 227  Bit Score: 207.52  E-value: 8.04e-67
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  61 GNMQSPIDLTDKRVLIDHNLGYLRSQYLP-SNATIKNRGHDIMMKFEGGNAGLGITINGTEYKLQQIHWHS------PSE 133
Cdd:cd00326    1 GKRQSPINIVTSAVVYDPSLPPLNFDYYPtTSLTLVNNGHTVQVNFDDDGGTLSGGGLPGRYKLVQFHFHWgsenspGSE 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 134 HTLNGKRFVLEEHMVHQS----------KDGRNAVVAFFYKLG-KPDYFLLTLERYLKRITdTHESQEFVEMVHPRTFGF 202
Cdd:cd00326   81 HTIDGKRYPLELHLVHYNsdyysseaakKPGGLAVLGVFFEVGeKENPFLKKILDALPKIK-YKGKETTLPPFDLSDLLP 159
                        170       180       190       200       210       220
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*..
gi 145335260 203 ES-KHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDQSNS---NARPLQRKNERPV 265
Cdd:cd00326  160 SSlRDYYTYEGSLTTPPCSEGVTWIVFKEPITISKEQLEAFRSLLDREGKPlvnNYRPVQPLNGRVV 226
PLN02202 PLN02202
carbonate dehydratase
12-268 1.40e-54

carbonate dehydratase


Pssm-ID: 177853 [Multi-domain]  Cd Length: 284  Bit Score: 177.94  E-value: 1.40e-54
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  12 LIFISITIVSSSPDHGEVEDeTQFNYekKGEKGPENWGRLKPEWAMCGKGNMQSPIDLTDKRVLIDHNLGYLRSQYLPSN 91
Cdd:PLN02202   9 LCFFAIALICIAPADAQTEG-VVFGY--KGKNGPNQWGHLNPHFTKCAVGKLQSPIDIQRRQIFYNHKLESIHRDYYFTN 85
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  92 ATIKNRGHDIMMKFeGGNAGlGITINGTEYKLQQIHWHSPSEHTLNGKRFVLEEHMVHQSKDGRNAVVAFFYKLGKPDYF 171
Cdd:PLN02202  86 ATLVNHVCNVAMFF-GEGAG-DVIIDNKNYTLLQMHWHTPSEHHLHGVQYAAELHMVHQAKDGSFAVVASLFKIGTEEPF 163
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 172 LLTLERYL-----KRITDTHESQEFVEMVHPRTFGFESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTV 246
Cdd:PLN02202 164 LSQMKDKLvklkeERFKGNHTAQVEVGKIDTRHIERKTRKYFRYIGSLTTPPCSENVSWTILGKVRSMSKEQVELLRSPL 243
                        250       260
                 ....*....|....*....|..
gi 145335260 247 HDQSNSNARPLQRKNERPVALY 268
Cdd:PLN02202 244 DKSFKNNSRPCQPLNGRRVEMF 265
Carb_anhydrase pfam00194
Eukaryotic-type carbonic anhydrase;
44-265 1.21e-51

Eukaryotic-type carbonic anhydrase;


Pssm-ID: 459707 [Multi-domain]  Cd Length: 252  Bit Score: 169.37  E-value: 1.21e-51
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260   44 GPENWGRlkpEWAMCGkGNMQSPIDLTDKRVLIDHNLGYLRSQY---LPSNATIKNRGHDIMMKFEGGNaglGITING-- 118
Cdd:pfam00194   2 GPEHWGK---VYPSCG-GKRQSPINIDTRKVRYDPSLPPLTFQGydvPPGKNTLTNNGHTVQVSLDDGD---PSTISGgp 74
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  119 --TEYKLQQI--HWHSP----SEHTLNGKRFVLEEHMVHQSKDGRN-----------AVVAFFYKLGKPDY-FLLTLERY 178
Cdd:pfam00194  75 laTRYRLVQFhfHWGSTdsrgSEHTIDGKRYPAELHIVHYNSKYKSfdeaakhpdglAVLGVFFEVGDENNpYLQPIVSA 154
                         170       180       190       200       210       220       230       240
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  179 LKRITDTHESQEFVEMVHPRTFGFESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDQSN------- 251
Cdd:pfam00194 155 LDNIKYKGKSVLLPPFDLSDLLPEDLTSYYTYNGSLTTPPCSESVTWIVFKEPISISEEQLEAFRTLLFSDGGeeprplv 234
                         250
                  ....*....|....
gi 145335260  252 SNARPLQRKNERPV 265
Cdd:pfam00194 235 NNFRPTQPLNGRVV 248
alpha_CA_IV_XV_like cd03117
Carbonic anhydrase alpha, CA_IV, CA_XV, like isozymes. Carbonic anhydrases (CAs) are ...
61-265 1.19e-33

Carbonic anhydrase alpha, CA_IV, CA_XV, like isozymes. Carbonic anhydrases (CAs) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism: a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. There are three evolutionary distinct groups - alpha, beta and gamma carbonic anhydrases - which show no significant sequence identity or structural similarity. Most alpha CAs are monomeric enzymes. The zinc ion is complexed by three histidine residues. This subgroup, restricted to animals, contains isozyme IV and similar proteins such as mouse CA XV. Isozymes IV is attached to membranes via a glycosylphosphatidylinositol (GPI) tail. In mammals, Isozyme IV plays crucial roles in kidney and lung function, amongst others. This subgroup also contains the dual domain CA from the giant clam, Tridacna gigas. T. gigas CA plays a role in the movement of inorganic carbon from the surrounding seawater to the symbiotic algae found in the clam's tissues. CA XV is expressed in several species but not in humans or chimps. Similar to isozyme CA IV, CA XV attaches to membranes via a GPI tail.


Pssm-ID: 239391  Cd Length: 234  Bit Score: 122.38  E-value: 1.19e-33
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  61 GNMQSPIDLTDKRVLIDHNLGYLR-SQY--LPSNATIKNRGHDIMMKFEGGnaglgITING----TEYKLQQIHWH---- 129
Cdd:cd03117    1 GKRQSPINIVTKKVQYDENLTPFTfTGYddTTTNWTITNNGHTVQVTLPDG-----AKISGgglpGTYKALQFHFHwgsn 75
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 130 -SP-SEHTLNGKRFVLEEHMVHQSKDGRN-----------AVVAFFYKLGK---PDYFLLTleRYLKRITdTHESQEFVE 193
Cdd:cd03117   76 gSPgSEHTIDGERYPMELHIVHIKESYNSllealkdsdglAVLGFFIEEGEeenTNFDPLI--SALSNIP-QKGGSTNLT 152
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 194 MVHPRTF--GFESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDQSNSNA------RPLQRKNERPV 265
Cdd:cd03117  153 PFSLRSLlpSVLLTKYYRYNGSLTTPGCNEAVIWTVFEEPIPISRAQLDAFSTVLFFDTDNGQpmvnnfRPVQPLNGRVV 232
alpha_CA_I_II_III_XIII cd03119
Carbonic anhydrase alpha, isozymes I, II, and III and XIII. Carbonic anhydrases (CAs) are ...
34-265 4.39e-31

Carbonic anhydrase alpha, isozymes I, II, and III and XIII. Carbonic anhydrases (CAs) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism: a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. Most alpha CAs are monomeric enzymes. The zinc ion is complexed by three histidines. This vertebrate subgroup comprises isozymes I, II, and III, which are cytoplasmic enzymes. CA I, for example, is expressed in erythrocyes of many vertebrates; CA II is the most active cytosolic isozyme; while it is being expressed nearly ubiquitously, it comprises 95% of the renal carbonic anhydrase and is required for renal acidification; CA III has been implicated in protection from the damaging effect of oxidizing agents in hepatocytes. CAXIII may play important physiological roles in several organs.


Pssm-ID: 239393 [Multi-domain]  Cd Length: 259  Bit Score: 116.38  E-value: 4.39e-31
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  34 QFNYEKkgEKGPENWGRLKPewamCGKGNMQSPIDLTDKRVLIDHNLGYLRSQYLPSNA-TIKNRGHDIMMKFEGG-NAG 111
Cdd:cd03119    4 HWGYDS--HNGPEHWHELFP----IAKGDRQSPIDIKTKDAKHDPSLKPLSVSYDPATAkTILNNGHSFNVEFDDTdDRS 77
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 112 L--GITINGTeYKLQQIHWH------SPSEHTLNGKRFVLEEHMVH------------QSKDGRnAVVAFFYKLGKPDyf 171
Cdd:cd03119   78 VlrGGPLTGS-YRLRQFHFHwgssddHGSEHTVDGVKYAAELHLVHwnskygsfgeaaKQPDGL-AVVGVFLKVGEAN-- 153
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 172 lltleRYLKRITDTHES------QEFVEMVHPRTFGFESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVT 245
Cdd:cd03119  154 -----PELQKVLDALDSiktkgkQAPFTNFDPSCLLPASLDYWTYPGSLTTPPLLECVTWIVLKEPISVSSEQMAKFRSL 228
                        250       260
                 ....*....|....*....|
gi 145335260 246 VHDQSNSNARPLQrKNERPV 265
Cdd:cd03119  229 LFNAEGEPPCPMV-DNWRPP 247
alpha_CA_VI_IX_XII_XIV cd03123
Carbonic anhydrase alpha, isozymes VI, IX, XII and XIV. Carbonic anhydrases (CAs) are ...
44-265 2.51e-29

Carbonic anhydrase alpha, isozymes VI, IX, XII and XIV. Carbonic anhydrases (CAs) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism: a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. There are three evolutionary distinct groups - alpha, beta and gamma carbonic anhydrases - which show no significant sequence identity or structural similarity. Alpha CAs are mostly monomeric enzymes. The zinc ion is complexed by three histidine residues. This sub-family comprises the secreted CA VI, which is found in saliva, for example, and the membrane proteins CA IX, XII, and XIV.


Pssm-ID: 239397 [Multi-domain]  Cd Length: 248  Bit Score: 111.24  E-value: 2.51e-29
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  44 GPENWGRLKPEwamCGkGNMQSPIDLTDKRVLIDHNL------GYLRSQYLPsnATIKNRGHDIMMKFEggnAGLGITIN 117
Cdd:cd03123    1 GEDHWPKKYPA---CG-GKRQSPIDIQTDIVQFDPSLpplelvGYDLPGTEE--FTLTNNGHTVQLSLP---PTMHIRGG 71
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 118 -GTEYKLQQIHWH-------SPSEHTLNGKRFVLEEHMVH------------QSKDGRNAVVAFFYKLGKP--DYflltl 175
Cdd:cd03123   72 pGTEYTAAQLHLHwggrgslSGSEHTIDGIRFAAELHIVHynsdkyssfdeaADKPDGLAVLAILIEVGYPenTY----- 146
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 176 erYLKRITDTHESQEFVEMVHPRTFGFES------KHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDQ 249
Cdd:cd03123  147 --YEKIISHLHEIKYKGQETTVPGFNVREllpedlSHYYRYEGSLTTPPCYESVLWTVFRDPVTLSKEQLETLENTLMDT 224
                        250       260
                 ....*....|....*....|
gi 145335260 250 SNS----NARPLQRKNERPV 265
Cdd:cd03123  225 HNKtlqnNYRATQPLNGRVV 244
alpha_CARP_X_XI_like cd03121
Carbonic anhydrase alpha related protein: groups X, XI and related proteins. This subgroup ...
44-265 1.77e-26

Carbonic anhydrase alpha related protein: groups X, XI and related proteins. This subgroup contains carbonic anhydrase related proteins (CARPs) X and XI, which have been implicated in various biological processes of the central nervous system. CARPs are sequence similar to carbonic anhydrases. Carbonic anhydrases are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism. CARPs have lost conserved histidines involved in zinc binding and consequently their catalytic activity. CARP XI plays a role in the development of gastrointestinal stromal tumors.


Pssm-ID: 239395 [Multi-domain]  Cd Length: 256  Bit Score: 104.03  E-value: 1.77e-26
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  44 GPENWGRLKPEWAMCGKGNMQSPIDLTDKRVLIDHNLGYLR-SQYLPSNATIKNRGHdiMMKFEGGNAGLgITINGT--- 119
Cdd:cd03121    1 GPSFWGLVNSAWNLCSKGRRQSPVDIEPSRLLFDPFLTPLRiDTGRKVSGTFYNTGR--HVSFRPDKDPV-VNISGGpls 77
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 120 -EYKLQQIHWH------SPSEHTLNGKRFVLEEHMVHQSKD----------GRN--AVVAFFYKLGKpdyfllTLERYLK 180
Cdd:cd03121   78 yRYRLEEIRLHfgredeQGSEHTVNGQAFPGEVQLIHYNSElypnfseaskSPNglVIVSLFVKIGE------TSNPELR 151
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 181 RITD-------THESQE-FVEMVHPRTFGFESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHDQSNS 252
Cdd:cd03121  152 RLTNrdtitsiRYKGDAyFLQDLSIELLLPETDHYITYEGSLTSPGCHETVTWIILNKPIYITKEQMHSLRLLSQNSPSQ 231
                        250       260
                 ....*....|....*....|
gi 145335260 253 -------NARPLQRKNERPV 265
Cdd:cd03121  232 ekapmspNFRPVQPLNNRPV 251
alpha_CARP_receptor_like cd03122
Carbonic anhydrase alpha related protein, receptor_like subfamily. Carbonic anhydrase related ...
44-265 2.22e-26

Carbonic anhydrase alpha related protein, receptor_like subfamily. Carbonic anhydrase related proteins (CARPs) are sequence similar to carbonic anhydrases. Carbonic anhydrases are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism. CARPs have lost conserved histidines involved in zinc binding and consequently their catalytic activity. This sub-family of carbonic anhydrase-related domains found in tyrosine phosphatase receptors may play a role in cell adhesion.


Pssm-ID: 239396 [Multi-domain]  Cd Length: 253  Bit Score: 103.59  E-value: 2.22e-26
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  44 GPENWGRLKPEwamCGKGNMQSPIDLTDKRVLIDHNLGYLRSQY---LPSNATIKNRGHDIMMKFEGGNAGLGITINGTE 120
Cdd:cd03122    1 NPKHWAKKYPA---CGEGRQQSPIDIVEDTQVQRQGLQPLHFDGyeeLTASTTLENTGKTVILRLEGNSSDPFVSGGPLL 77
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 121 --YKLQQIHWH---SP---SEHTLNGKRFVLEEHMVH-----------QSKDGRNAVVAFFYKLG-KPDYFLLTLERYLK 180
Cdd:cd03122   78 grYKFSEITFHwgtCNsdgSEHSIDGHKFPLEMQILHrntdffdsfeaIKSPGGVLALAYLFELShEDNPFLDPIIEGLR 157
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 181 RITdTHESQEFVEMVHPRTF--GFESKhYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLR---------VTVHDQ 249
Cdd:cd03122  158 NVS-RPGKEVELPPFPLSDLlpPFTDK-YYSYEGSLTTPPCSETVEWIVFREPVPISSRQLEAFRelltrrqdgVMSGDY 235
                        250
                 ....*....|....*.
gi 145335260 250 SNSNARPLQRKNERPV 265
Cdd:cd03122  236 LPNNGRPQQPLGSRTV 251
alpha_CA_VII cd03149
Carbonic anhydrase alpha, CA isozyme VII_like subgroup. Carbonic anhydrases (CAs) are ...
61-265 3.17e-24

Carbonic anhydrase alpha, CA isozyme VII_like subgroup. Carbonic anhydrases (CAs) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism: a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. Most alpha CAs are monomeric enzymes. The zinc ion is complexed by three histidines. This vertebrate subgroup comprises isozyme VII. CA VII is the most active cytosolic enzyme after CA II, and may be highly expressed in the brain. Human CA VII may be a target of antiepileptic sulfonamides/sulfamates.


Pssm-ID: 239402  Cd Length: 236  Bit Score: 97.60  E-value: 3.17e-24
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  61 GNMQSPIDLTDKRVLIDHNLGYLRSQYLPSNA-TIKNRGHDIMMKFEGGNAGLGITINGTE--YKLQQIHWH------SP 131
Cdd:cd03149    1 GNRQSPIDIVSSEAVYDPKLKPLSLSYDPCTSlSISNNGHSVMVEFDDSDDKTVITGGPLEnpYRLKQFHFHwgakhgSG 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 132 SEHTLNGKRFVLEEHMVH-------------QSKDGRnAVVAFFYKLGKPdyflltlERYLKRITDTHESQEF------V 192
Cdd:cd03149   81 SEHTVDGKTFPSELHLVHwnakkyksfgeaaAAPDGL-AVLGVFLETGDE-------HPGLNRLTDALYMVRFkgtkaqF 152
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 193 EMVHPRTFGFESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTV----HDQSN---SNARPLQRKNERPV 265
Cdd:cd03149  153 LDFNPKCLLPKSLDYWTYPGSLTTPPLNESVTWIVLKEPIPVSEKQMGKFRELLftseEDQRNhmvNNFRPPQPLKGRTV 232
alpha_CA_VI cd03125
Carbonic anhydrase alpha, isozyme VI. Carbonic anhydrases (CAs) are zinc-containing enzymes ...
44-255 7.58e-23

Carbonic anhydrase alpha, isozyme VI. Carbonic anhydrases (CAs) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism: a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. There are three evolutionary distinct groups - alpha, beta and gamma carbonic anhydrases - which show no significant sequence identity or structural similarity. Most alpha CAs are monomeric enzymes. The zinc ion is complexed by three histidine residues. This sub-family comprises the secreted CA VI, which is found in saliva.


Pssm-ID: 239399  Cd Length: 249  Bit Score: 94.08  E-value: 7.58e-23
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  44 GPENWGRlkpEWAMCGkGNMQSPIDLTDKRVLIDHNL------GYLRSQylpSNATIKNRGHDIM------MKFEGGNag 111
Cdd:cd03125    1 DESHWPE---KYPACG-GKRQSPIDIQRREVRFNPSLlqlelvGYEKEQ---GEFTMTNNGHTVQidlpptMSITTGD-- 71
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 112 lgitinGTEYKLQQIHWH--------SPSEHTLNGKRFVLEEHMVH---------QSKDGRN--AVVAFFYKLGKP---D 169
Cdd:cd03125   72 ------GTVYTAVQMHFHwggrdseiSGSEHTIDGMRYVAELHIVHynskyksyeEAKDKPDglAVLAFLYKVGHYaenT 145
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 170 Y---FLLTLERYLKRITDTHESQEFVEMVHPRTFgfesKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTV 246
Cdd:cd03125  146 YysdFISKLAKIKYAGQTTTLTSLDVRDMLPENL----HHYYTYQGSLTTPPCTENVLWFVFDDPVTLSKTQIVKLENTL 221

                 ....*....
gi 145335260 247 HDQSNSNAR 255
Cdd:cd03125  222 MDHHNKTIR 230
alpha_CA_XII_XIV cd03126
Carbonic anhydrase alpha, isozymes XII and XIV. Carbonic anhydrases (CAs) are zinc-containing ...
44-265 6.28e-22

Carbonic anhydrase alpha, isozymes XII and XIV. Carbonic anhydrases (CAs) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism: a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. There are three evolutionary distinct groups - alpha, beta and gamma carbonic anhydrases - which show no significant sequence identity or structural similarity. Most alpha CAs are monomeric enzymes. The zinc ion is complexed by three histidine residues. This sub-family comprises the membrane proteins CA XII and XIV.


Pssm-ID: 239400  Cd Length: 249  Bit Score: 91.82  E-value: 6.28e-22
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  44 GPENWGRLKPEwamCGkGNMQSPIDLTDKRVLIDHNLGYLRSQ-Y-LPSNA--TIKNRGHDIMMKFEggnAGLGITINGT 119
Cdd:cd03126    1 GENSWPKKYPF---CG-GVAQSPIDIHTDILQYDSSLPPLEFHgYnVSGTEqfTLTNNGHTVQLSLP---PTMHIGGLPF 73
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 120 EYKLQQIHWH-----SP--SEHTLNGKRFVLEEHMVHQSKDGRN------------AVVAFFYKLGKpdyFLLTLERYLK 180
Cdd:cd03126   74 KYTASQLHLHwgqrgSPegSEHTISGKHFAAELHIVHYNSDKYPdistamnksqglAVLGILIEVGP---FNPSYEKIFS 150
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 181 RItdtHESQEFVEMVHPRTFGFES------KHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVH----DQS 250
Cdd:cd03126  151 HL---HEVKYKDQKVSVPGFNVQEllpkrlDEYYRYEGSLTTPPCYPSVLWTVFRNPVQISQEQLLALETALYsteeDES 227
                        250
                 ....*....|....*...
gi 145335260 251 N---SNARPLQRKNERPV 265
Cdd:cd03126  228 RemvNNYRQVQPFNERLV 245
alpha_CA_IX cd03150
Carbonic anhydrase alpha, isozyme IX. Carbonic anhydrases (CAs) are zinc-containing enzymes ...
44-270 3.71e-20

Carbonic anhydrase alpha, isozyme IX. Carbonic anhydrases (CAs) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism: a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. There are three evolutionary distinct groups - alpha, beta and gamma carbonic anhydrases - which show no significant sequence identity or structural similarity. Alpha CAs are strictly monomeric enzymes. The zinc ion is complexed by three histidine residues. This sub-family comprises the membrane protein CA IX. CA IX is functionally implicated in tumor growth and survival. CA IX is mainly present in solid tumors and its expression in normal tissues is limited to the mucosa of alimentary tract. CA IX is a transmembrane protein with two extracellular domains: carbonic anhydrase and, a proteoglycan-like segment mediating cell-cell adhesion. There is evidence for an involvement of the MAPK pathway in the regulation of CA9 expression.


Pssm-ID: 239403  Cd Length: 247  Bit Score: 86.93  E-value: 3.71e-20
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  44 GPENWGRLKPEwamCGkGNMQSPIDLTDKRVLIDHNL------GYlrsQYLPSNA-TIKNRGHDIMMKFEggnAGLGITI 116
Cdd:cd03150    1 GQPPWPSVSPA---CA-GRFQSPVDIRPHLVAFCPALrplellGF---DLPPSPSlRLLNNGHTVQLSLP---SGLRMAL 70
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 117 N-GTEYKLQQIHWH------SPSEHTLNGKRFVLEEHMVHQS-----------KDGRNAVVAFFYKLG--KPDYFlltlE 176
Cdd:cd03150   71 GpGQEYRALQLHLHwgaagrPGSEHTVDGHRFPAEIHVVHLStafanldealgRPGGLAVLAAFLAEGlhENSAY----E 146
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 177 RYLKRITDTheSQEFVEMVHPrtfGFESKH--------YYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRVTVHD 248
Cdd:cd03150  147 QLLSRLSEI--SEEESETVVP---GLDVSAllpsdlsrYFRYEGSLTTPPCAQGVIWTVFNQTVRLSAKQLHTLSDSLWG 221
                        250       260
                 ....*....|....*....|....*.
gi 145335260 249 QSNS----NARPLQRKNERPVALYIP 270
Cdd:cd03150  222 PHDSrlqlNFRATQPLNGRKIEASFP 247
alpha_CA_V cd03118
Carbonic anhydrase alpha, CA isozyme V_like subgroup. Carbonic anhydrases (CAs) are ...
61-265 4.42e-20

Carbonic anhydrase alpha, CA isozyme V_like subgroup. Carbonic anhydrases (CAs) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism: a nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. Most alpha CAs are monomeric enzymes. The zinc ion is complexed by three histidines. This vertebrate subgroup comprises isozyme V. CA V is the mitochondrial isozyme, which may play a role in gluconeogenesis and ureagenesis and possibly also in lipogenesis.


Pssm-ID: 239392  Cd Length: 236  Bit Score: 86.44  E-value: 4.42e-20
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  61 GNMQSPIDLTDKRVLIDHNLGYLRSQYLPSNAT-IKNRGHDIMMKFEGGNAGLGITIN--GTEYKLQQIHWH------SP 131
Cdd:cd03118    1 GTRQSPINIQWRDSVYDPQLAPLRVSYDPATCLyIWNNGYSFQVEFDDSTDKSGISGGplENHYRLKQFHFHwganneWG 80
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 132 SEHTLNGKRFVLEEHMVHQSKD----------GRN--AVVAFFYKLGKPDYFLLTLERYLKRITDTHESQEFvEMVHPRT 199
Cdd:cd03118   81 SEHTVDGHTYPAELHLVHWNSVkyenfeeavmEENglAVIGVFLKLGAHHEGLQKLVDALPEVRHKDTVVEF-NPFDPSC 159
                        170       180       190       200       210       220       230
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|...
gi 145335260 200 FGFESKHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQLIMLRV-------TVHDQSNSNARPLQRKNERPV 265
Cdd:cd03118  160 LLPACRDYWTYPGSLTTPPLTESVTWIIQKQPIEVSPSQLSVFRTllftsrgEEEKVMVNNFRPLQPLMNRKV 232
alpha_CARP_VIII cd03120
Carbonic anhydrase alpha related protein, group VIII. Carbonic anhydrase related proteins ...
48-265 1.86e-15

Carbonic anhydrase alpha related protein, group VIII. Carbonic anhydrase related proteins (CARPs) are sequence similar to carbonic anhydrases. Carbonic anhydrases are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism. CARPs have lost conserved histidines involved in zinc binding and consequently their catalytic activity. CARP VIII may play roles in various biological processes of the central nervous system, and could be involved in protein-protein interactions. CARP VIII has been shown to bind inositol 1,4,5-triphosphate (IP3) receptor type I (IP3RI), reducing the affinity of the receptor for IP3. IP3RI is an intracellular IP3-gated Ca2+ channel located on intracellular Ca2+ stores. IP3RI converts IP3 signaling into Ca2+ signaling thereby participating in a variety of cell functions.


Pssm-ID: 239394  Cd Length: 256  Bit Score: 74.12  E-value: 1.86e-15
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260  48 WGRLKPEwamcGKGNMQSPIDLTDKRVLIDHNLGYLR---SQYLPSNATIKNRGH--DIMMKFEGGNAGlGITINGTEYK 122
Cdd:cd03120    4 WGLLFPE----ANGEYQSPINLNSREARYDPSLLEVRlspNYVVCRDCEVINDGHtiQIILKSKSVLSG-GPLPQGHEFE 78
                         90       100       110       120       130       140       150       160
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 123 LQQI--HW----HSPSEHTLNGKRFVLEEHMVHQSKDGRN------------AVVAFFYKLGKPDYFLLTLERYLKRITD 184
Cdd:cd03120   79 LAEVrfHWgrenQRGSEHTVNFKAFPMELHLIHWNSTLYSsleeamgkphgiAIIALFVQIGKEHVGLKAVTEILQDIQY 158
                        170       180       190       200       210       220       230       240
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 145335260 185 THESQEfVEMVHPRTFGFES--KHYYRFIGSLTTPPCSENVIWTISKEMRTVTLKQL-IMLRVTVHDQSN---------- 251
Cdd:cd03120  159 KGKSKT-IPCFNPNTLLPDPllRDYWVYEGSLTTPPCSEGVTWILFRYPLTISQSQIeEFRRLRTHVKGAelvegcdgll 237
                        250
                 ....*....|....*
gi 145335260 252 -SNARPLQRKNERPV 265
Cdd:cd03120  238 gDNFRPTQPLSDRVI 252
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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