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Conserved domains on  [gi|12084502|pdb|1G8K|D]
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Chain D, ARSENITE OXIDASE

Protein Classification

Rieske (2Fe-2S) protein; non-heme iron oxygenase ferredoxin subunit( domain architecture ID 10131125)

Rieske (2Fe-2S) protein contains a [2Fe-2S] cluster, which is involved in electron transfer, and is liganded to two histidine and two cysteine residues present in conserved sequences called Rieske motifs, similar to chloroplast cytochrome b6f complex Rieske protein subunit which plays essential roles in photosynthetic electron transport, redox sensing, and signal transduction in chloroplasts| Rieske non-heme iron oxygenase ferredoxin subunit is part of a multicomponent enzyme system such as biphenyl dioxygenase, toluene 1,2-dioxygenase, anthranilate 1,2-dioxygenase, and naphthalene 1,2-dioxygenase

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
Rieske_ArOX_small cd03476
Small subunit of Arsenite oxidase (ArOX) family, Rieske domain; ArOX is a molybdenum/iron ...
6-131 1.25e-80

Small subunit of Arsenite oxidase (ArOX) family, Rieske domain; ArOX is a molybdenum/iron protein involved in the detoxification of arsenic, oxidizing it to arsenate. It consists of two subunits, a large subunit similar to members of the DMSO reductase family of molybdenum enzymes and a small subunit with a Rieske-type [2Fe-2S] cluster. The large subunit of ArOX contains the molybdenum site at which the oxidation of arsenite occurs. The small subunit contains a domain homologous to the Rieske domains of the cytochrome bc(1) and cytochrome b6f complexes as well as naphthalene 1,2-dioxygenase. The Rieske domain is a [2Fe-2S] cluster binding domain involved in electron transfer.


:

Pssm-ID: 239558  Cd Length: 126  Bit Score: 233.05  E-value: 1.25e-80
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1G8K_D        6 YPATAVSVAKNLAANEPVSFTYPDTSSPCVAVKLGAPVPGGVGPDDDIVAYSVLCTHMGCPTSYDSSSKTFSCPCHFTEF 85
Cdd:cd03476   1 YPAVKVANLSQLSPGQPVTFNYPDESSPCVLVKLGVPVPGGVGPDNDIVAFSALCTHMGCPLTYDPSNKTFVCPCHFSQF 80
                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*.
1G8K_D       86 DAEKAGQMICGEATADLPRVLLRYDAASDALTAVGVDGLIYGRQAN 131
Cdd:cd03476  81 DPARGGQMVSGQATQNLPQIVLEYDEASGDIYAVGVQGLIYGRYSN 126
 
Name Accession Description Interval E-value
Rieske_ArOX_small cd03476
Small subunit of Arsenite oxidase (ArOX) family, Rieske domain; ArOX is a molybdenum/iron ...
6-131 1.25e-80

Small subunit of Arsenite oxidase (ArOX) family, Rieske domain; ArOX is a molybdenum/iron protein involved in the detoxification of arsenic, oxidizing it to arsenate. It consists of two subunits, a large subunit similar to members of the DMSO reductase family of molybdenum enzymes and a small subunit with a Rieske-type [2Fe-2S] cluster. The large subunit of ArOX contains the molybdenum site at which the oxidation of arsenite occurs. The small subunit contains a domain homologous to the Rieske domains of the cytochrome bc(1) and cytochrome b6f complexes as well as naphthalene 1,2-dioxygenase. The Rieske domain is a [2Fe-2S] cluster binding domain involved in electron transfer.


Pssm-ID: 239558  Cd Length: 126  Bit Score: 233.05  E-value: 1.25e-80
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1G8K_D        6 YPATAVSVAKNLAANEPVSFTYPDTSSPCVAVKLGAPVPGGVGPDDDIVAYSVLCTHMGCPTSYDSSSKTFSCPCHFTEF 85
Cdd:cd03476   1 YPAVKVANLSQLSPGQPVTFNYPDESSPCVLVKLGVPVPGGVGPDNDIVAFSALCTHMGCPLTYDPSNKTFVCPCHFSQF 80
                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*.
1G8K_D       86 DAEKAGQMICGEATADLPRVLLRYDAASDALTAVGVDGLIYGRQAN 131
Cdd:cd03476  81 DPARGGQMVSGQATQNLPQIVLEYDEASGDIYAVGVQGLIYGRYSN 126
arsenite_ox_S TIGR02694
arsenite oxidase, small subunit; This model represents the small subunit of an arsenite ...
3-132 7.39e-63

arsenite oxidase, small subunit; This model represents the small subunit of an arsenite oxidase complex. It is a Rieske protein and appears to rely on the Tat (twin-arginine translocation) system to cross the membrane. Although this enzyme could run in the direction of arsenate reduction to arsenite in principle, the relevant biological function is arsenite oxidation for energy metabolism, not arsenic resistance. Homologs to both large (TIGR02693) and small subunits that score in the gray zone between the set trusted and noise bit score cutoffs for the respective models are found in Aeropyrum pernix K1 and in Sulfolobus tokodaii str. 7. [Energy metabolism, Electron transport]


Pssm-ID: 131741  Cd Length: 129  Bit Score: 188.17  E-value: 7.39e-63
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1G8K_D          3 TLAYPATAVSVAKNLAANEPVSFTYPDTSSPCVAVKLGAPVPGGVGPDDDIVAYSVLCTHMGCPTSYDSSSKTFSCPCHF 82
Cdd:TIGR02694   1 GLEYPANRVANISELKLNEPLDFNYPDASSPGVLLKLGTPVEGGVGPDGDIVAFSTLCTHMGCPVSYSADNKTFNCPCHF 80
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|
1G8K_D         83 TEFDAEKAGQMICGEATADLPRVLLRYDAASDALtAVGVDGLIYGRQANV 132
Cdd:TIGR02694  81 SVFDPEKGGQQVWGQATQNLPQIVLRVADNGDIF-AEGVDGLIYGRLSNV 129
QcrA/PetC COG0723
Rieske Fe-S protein [Energy production and conversion];
3-110 1.15e-20

Rieske Fe-S protein [Energy production and conversion];


Pssm-ID: 440487 [Multi-domain]  Cd Length: 118  Bit Score: 80.82  E-value: 1.15e-20
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1G8K_D        3 TLAYPATAVSVAKnLAANEPVSFTYPDtsSPCVAVKLGapvpggVGPDDDIVAYSVLCTHMGCPTSYDSSSKTFSCPCHF 82
Cdd:COG0723  13 AKAGAPVEVDLSD-LPPGEGKVVEWRG--KPVFVVRTP------VRGDGEIVAVSAICTHLGCPVTWNADEGGFDCPCHG 83
                        90       100
                ....*....|....*....|....*...
1G8K_D       83 TEFDAekAGQMICGEATADLPRVLLRYD 110
Cdd:COG0723  84 SRFDP--DGRVLKGPAPRPLPVPPLEVD 109
Rieske pfam00355
Rieske [2Fe-2S] domain; The rieske domain has a [2Fe-2S] centre. Two conserved cysteines ...
48-103 2.34e-08

Rieske [2Fe-2S] domain; The rieske domain has a [2Fe-2S] centre. Two conserved cysteines coordinate one Fe ion, while the other Fe ion is coordinated by two conserved histidines. In hyperthermophilic archaea there is a SKTPCX(2-3)C motif at the C-terminus. The cysteines in this motif form a disulphide bridge, which stabilizes the protein.


Pssm-ID: 425632 [Multi-domain]  Cd Length: 89  Bit Score: 48.11  E-value: 2.34e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
1G8K_D         48 GPDDDIVAYSVLCTHMGCPTS--YDSSSKTFSCPCHFTEFDAekAGQMICGEATADLP 103
Cdd:pfam00355  31 DEDGELYALEDRCPHRGAPLSegKVNGGGRLECPYHGWRFDG--TGKVVKVPAPRPLK 86
PRK13474 PRK13474
cytochrome b6-f complex iron-sulfur subunit; Provisional
60-88 1.77e-05

cytochrome b6-f complex iron-sulfur subunit; Provisional


Pssm-ID: 237392 [Multi-domain]  Cd Length: 178  Bit Score: 41.95  E-value: 1.77e-05
                         10        20
                 ....*....|....*....|....*....
1G8K_D        60 CTHMGCPTSYDSSSKTFSCPCHFTEFDAE 88
Cdd:PRK13474 107 CTHLGCVVPWNSGENKFQCPCHGSQYDAT 135
 
Name Accession Description Interval E-value
Rieske_ArOX_small cd03476
Small subunit of Arsenite oxidase (ArOX) family, Rieske domain; ArOX is a molybdenum/iron ...
6-131 1.25e-80

Small subunit of Arsenite oxidase (ArOX) family, Rieske domain; ArOX is a molybdenum/iron protein involved in the detoxification of arsenic, oxidizing it to arsenate. It consists of two subunits, a large subunit similar to members of the DMSO reductase family of molybdenum enzymes and a small subunit with a Rieske-type [2Fe-2S] cluster. The large subunit of ArOX contains the molybdenum site at which the oxidation of arsenite occurs. The small subunit contains a domain homologous to the Rieske domains of the cytochrome bc(1) and cytochrome b6f complexes as well as naphthalene 1,2-dioxygenase. The Rieske domain is a [2Fe-2S] cluster binding domain involved in electron transfer.


Pssm-ID: 239558  Cd Length: 126  Bit Score: 233.05  E-value: 1.25e-80
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1G8K_D        6 YPATAVSVAKNLAANEPVSFTYPDTSSPCVAVKLGAPVPGGVGPDDDIVAYSVLCTHMGCPTSYDSSSKTFSCPCHFTEF 85
Cdd:cd03476   1 YPAVKVANLSQLSPGQPVTFNYPDESSPCVLVKLGVPVPGGVGPDNDIVAFSALCTHMGCPLTYDPSNKTFVCPCHFSQF 80
                        90       100       110       120
                ....*....|....*....|....*....|....*....|....*.
1G8K_D       86 DAEKAGQMICGEATADLPRVLLRYDAASDALTAVGVDGLIYGRQAN 131
Cdd:cd03476  81 DPARGGQMVSGQATQNLPQIVLEYDEASGDIYAVGVQGLIYGRYSN 126
arsenite_ox_S TIGR02694
arsenite oxidase, small subunit; This model represents the small subunit of an arsenite ...
3-132 7.39e-63

arsenite oxidase, small subunit; This model represents the small subunit of an arsenite oxidase complex. It is a Rieske protein and appears to rely on the Tat (twin-arginine translocation) system to cross the membrane. Although this enzyme could run in the direction of arsenate reduction to arsenite in principle, the relevant biological function is arsenite oxidation for energy metabolism, not arsenic resistance. Homologs to both large (TIGR02693) and small subunits that score in the gray zone between the set trusted and noise bit score cutoffs for the respective models are found in Aeropyrum pernix K1 and in Sulfolobus tokodaii str. 7. [Energy metabolism, Electron transport]


Pssm-ID: 131741  Cd Length: 129  Bit Score: 188.17  E-value: 7.39e-63
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1G8K_D          3 TLAYPATAVSVAKNLAANEPVSFTYPDTSSPCVAVKLGAPVPGGVGPDDDIVAYSVLCTHMGCPTSYDSSSKTFSCPCHF 82
Cdd:TIGR02694   1 GLEYPANRVANISELKLNEPLDFNYPDASSPGVLLKLGTPVEGGVGPDGDIVAFSTLCTHMGCPVSYSADNKTFNCPCHF 80
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|
1G8K_D         83 TEFDAEKAGQMICGEATADLPRVLLRYDAASDALtAVGVDGLIYGRQANV 132
Cdd:TIGR02694  81 SVFDPEKGGQQVWGQATQNLPQIVLRVADNGDIF-AEGVDGLIYGRLSNV 129
QcrA/PetC COG0723
Rieske Fe-S protein [Energy production and conversion];
3-110 1.15e-20

Rieske Fe-S protein [Energy production and conversion];


Pssm-ID: 440487 [Multi-domain]  Cd Length: 118  Bit Score: 80.82  E-value: 1.15e-20
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1G8K_D        3 TLAYPATAVSVAKnLAANEPVSFTYPDtsSPCVAVKLGapvpggVGPDDDIVAYSVLCTHMGCPTSYDSSSKTFSCPCHF 82
Cdd:COG0723  13 AKAGAPVEVDLSD-LPPGEGKVVEWRG--KPVFVVRTP------VRGDGEIVAVSAICTHLGCPVTWNADEGGFDCPCHG 83
                        90       100
                ....*....|....*....|....*...
1G8K_D       83 TEFDAekAGQMICGEATADLPRVLLRYD 110
Cdd:COG0723  84 SRFDP--DGRVLKGPAPRPLPVPPLEVD 109
Rieske_SoxF_SoxL cd03475
SoxF and SoxL family, Rieske domain; The Rieske domain is a [2Fe-2S] cluster binding domain ...
25-123 3.72e-19

SoxF and SoxL family, Rieske domain; The Rieske domain is a [2Fe-2S] cluster binding domain involved in electron transfer. SoxF is a subunit of the terminal oxidase supercomplex SoxM in the plasma membrane of Sulfolobus acidocaldarius that combines features of a cytochrome bc(1) complex and a cytochrome. The Rieske domain of SoxF has a 12 residue insertion which is not found in eukaryotic and bacterial Rieske proteins and is thought to influence the redox properties of the iron-sulfur cluster. SoxL is a Rieske protein which may be part of an archaeal bc-complex homologue whose physiological function is still unknown. SoxL has two features not seen in other Rieske proteins; (i) a significantly greater distance between the two cluster-binding sites and (ii) an unexpected Pro -> Asp substitution at one of the cluster binding sites. SoxF and SoxL are found in archaea and in bacteria.


Pssm-ID: 239557  Cd Length: 171  Bit Score: 78.31  E-value: 3.72e-19
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
1G8K_D       25 FTYPDTSSPCVAVKLGAPV----------------------PGGVGPDDDIVAYSVLCTHMGC----------------P 66
Cdd:cd03475  27 FAYPLTNEPCFLLNLGASSgqpvveipnpvkypgtggqytwPGGVGPNKSIVAFSAICQHLGCqpppivsypsyyppdkA 106
                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|....*..
1G8K_D       67 TSYDSSSKTFSCPCHFTEFDAEKAGQMICGEATADLPRVLLRYDAASDALTAVGVDG 123
Cdd:cd03475 107 PGLASKGAVIHCCCHGSTYDPYKGGVVLTGPAPRPLPAVILEYDSSTDDLYAVGTLG 163
Rieske cd03467
Rieske domain; a [2Fe-2S] cluster binding domain commonly found in Rieske non-heme iron ...
50-110 1.74e-13

Rieske domain; a [2Fe-2S] cluster binding domain commonly found in Rieske non-heme iron oxygenase (RO) systems such as naphthalene and biphenyl dioxygenases, as well as in plant/cyanobacterial chloroplast b6f and mitochondrial cytochrome bc(1) complexes. The Rieske domain can be divided into two subdomains, with an incomplete six-stranded, antiparallel beta-barrel at one end, and an iron-sulfur cluster binding subdomain at the other. The Rieske iron-sulfur center contains a [2Fe-2S] cluster, which is involved in electron transfer, and is liganded to two histidine and two cysteine residues present in conserved sequences called Rieske motifs. In RO systems, the N-terminal Rieske domain of the alpha subunit acts as an electron shuttle that accepts electrons from a reductase or ferredoxin component and transfers them to the mononuclear iron in the alpha subunit C-terminal domain to be used for catalysis.


Pssm-ID: 239550 [Multi-domain]  Cd Length: 98  Bit Score: 61.74  E-value: 1.74e-13
                        10        20        30        40        50        60
                ....*....|....*....|....*....|....*....|....*....|....*....|..
1G8K_D       50 DDDIVAYSVLCTHMGCPTS-YDSSSKTFSCPCHFTEFDAEkAGQMICGEATADLPRVLLRYD 110
Cdd:cd03467  32 GGEVYALSNRCTHQGCPLSeGEGEDGCIVCPCHGSRFDLR-TGEVVSGPAPRPLPKYPVKVE 92
Rieske pfam00355
Rieske [2Fe-2S] domain; The rieske domain has a [2Fe-2S] centre. Two conserved cysteines ...
48-103 2.34e-08

Rieske [2Fe-2S] domain; The rieske domain has a [2Fe-2S] centre. Two conserved cysteines coordinate one Fe ion, while the other Fe ion is coordinated by two conserved histidines. In hyperthermophilic archaea there is a SKTPCX(2-3)C motif at the C-terminus. The cysteines in this motif form a disulphide bridge, which stabilizes the protein.


Pssm-ID: 425632 [Multi-domain]  Cd Length: 89  Bit Score: 48.11  E-value: 2.34e-08
                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*...
1G8K_D         48 GPDDDIVAYSVLCTHMGCPTS--YDSSSKTFSCPCHFTEFDAekAGQMICGEATADLP 103
Cdd:pfam00355  31 DEDGELYALEDRCPHRGAPLSegKVNGGGRLECPYHGWRFDG--TGKVVKVPAPRPLK 86
Rieske_YhfW_C cd03477
YhfW family, C-terminal Rieske domain; YhfW is a protein of unknown function with an ...
49-103 3.77e-08

YhfW family, C-terminal Rieske domain; YhfW is a protein of unknown function with an N-terminal DadA-like (glycine/D-amino acid dehydrogenase) domain and a C-terminal Rieske domain. The Rieske domain is a [2Fe-2S] cluster binding domain involved in electron transfer. It is commonly found in Rieske non-heme iron oxygenase (RO) systems such as naphthalene and biphenyl dioxygenases, as well as in plant/cyanobacterial chloroplast b6f and mitochondrial cytochrome bc(1) complexes. YhfW is found in bacteria, some eukaryotes and archaea.


Pssm-ID: 239559 [Multi-domain]  Cd Length: 91  Bit Score: 47.68  E-value: 3.77e-08
                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....*
1G8K_D       49 PDDDIVAYSVLCTHMGCPTSYDSSSKTFSCPCHFTEFDAEkaGQMICGEATADLP 103
Cdd:cd03477  29 EDGVLHTVSATCTHLGCIVHWNDAEKSWDCPCHGSRFSYD--GEVIEGPAVSGLK 81
Rieske_cytochrome_b6f cd03471
Iron-sulfur protein (ISP) component of the b6f complex family, Rieske domain; The Rieske ...
47-98 4.27e-06

Iron-sulfur protein (ISP) component of the b6f complex family, Rieske domain; The Rieske domain is a [2Fe-2S] cluster binding domain involved in electron transfer. The cytochrome b6f complex from Mastigocladus laminosus, a thermophilic cyanobacterium, contains four large subunits, including cytochrome f, cytochrome b6, the Rieske ISP, and subunit IV; as well as four small hydrophobic subunits, PetG, PetL, PetM, and PetN. Rieske ISP, one of the large subunits of the cytochrome bc-type complexes, is involved in respiratory and photosynthetic electron transfer. The core of the chloroplast b6f complex is similar to the analogous respiratory cytochrome bc(1) complex, but the domain arrangement outside the core and the complement of prosthetic groups are strikingly different.


Pssm-ID: 239553  Cd Length: 126  Bit Score: 43.12  E-value: 4.27e-06
                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....
1G8K_D       47 VGPDDDIVAYSV--LCTHMGCPTSYDSSSKTFSCPCHFTEFDAEkaGQMICGEA 98
Cdd:cd03471  40 VEEDKTIANYGInaVCTHLGCVVPWNAAENKFKCPCHGSQYDAT--GKVVRGPA 91
NirD COG2146
Ferredoxin subunit of nitrite reductase or a ring-hydroxylating dioxygenase [Inorganic ion ...
49-105 1.08e-05

Ferredoxin subunit of nitrite reductase or a ring-hydroxylating dioxygenase [Inorganic ion transport and metabolism, Secondary metabolites biosynthesis, transport and catabolism];


Pssm-ID: 441749 [Multi-domain]  Cd Length: 103  Bit Score: 41.37  E-value: 1.08e-05
                        10        20        30        40        50
                ....*....|....*....|....*....|....*....|....*....|....*...
1G8K_D       49 PDDDIVAYSVLCTHMGCPTSYDS-SSKTFSCPCHFTEFDAEkAGQMICGEATADLPRV 105
Cdd:COG2146  32 TDGEVYAYDNRCPHQGAPLSEGIvDGGVVTCPLHGARFDLR-TGECLGGPATEPLKTY 88
PRK13474 PRK13474
cytochrome b6-f complex iron-sulfur subunit; Provisional
60-88 1.77e-05

cytochrome b6-f complex iron-sulfur subunit; Provisional


Pssm-ID: 237392 [Multi-domain]  Cd Length: 178  Bit Score: 41.95  E-value: 1.77e-05
                         10        20
                 ....*....|....*....|....*....
1G8K_D        60 CTHMGCPTSYDSSSKTFSCPCHFTEFDAE 88
Cdd:PRK13474 107 CTHLGCVVPWNSGENKFQCPCHGSQYDAT 135
Rieske_cytochrome_bc1 cd03470
Iron-sulfur protein (ISP) component of the bc(1) complex family, Rieske domain; The Rieske ...
59-103 2.64e-04

Iron-sulfur protein (ISP) component of the bc(1) complex family, Rieske domain; The Rieske domain is a [2Fe-2S] cluster binding domain involved in electron transfer. The bc(1) complex is a multisubunit enzyme found in many different organisms including uni- and multi-cellular eukaryotes, plants (in their mitochondria) and bacteria. The cytochrome bc(1) and b6f complexes are central components of the respiratory and photosynthetic electron transport chains, respectively, which carry out similar core electron and proton transfer steps. The bc(1) and b6f complexes share a common core structure of three catalytic subunits: cyt b, the Rieske ISP, and either a cyt c1 in the bc(1) complex or cyt f in the b6f complex, which are arranged in an integral membrane-bound dimeric complex. While the core of the b6f complex is similar to that of the bc(1) complex, the domain arrangement outside the core and the complement of prosthetic groups are strikingly different.


Pssm-ID: 239552  Cd Length: 126  Bit Score: 38.31  E-value: 2.64e-04
                        10        20        30        40
                ....*....|....*....|....*....|....*....|....*.
1G8K_D       59 LCTHMGC-PTSYDSSSKTFSCPCHFTEFDAekAGQMICGEATADLP 103
Cdd:cd03470  68 ICTHLGCvPTYRAGDYGGFFCPCHGSHYDA--SGRIRKGPAPLNLE 111
 
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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