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Conserved domains on  [gi|60097923|ref|NP_776900|]
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three-prime repair exonuclease 1 [Bos taurus]

Protein Classification

3'-5' exonuclease family protein; 3'-5' exonuclease( domain architecture ID 10150103)

3'-5' exonuclease family protein may cleave nucleotides one at a time from the end (exo) of a polynucleotide chain| 3'-5' exonuclease has a fundamental role in reducing polymerase errors and is involved in proofreading activity

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
TREX1_2 cd06136
DEDDh 3'-5' exonuclease domain of three prime repair exonuclease (TREX)1, TREX2, and similar ...
14-211 5.55e-73

DEDDh 3'-5' exonuclease domain of three prime repair exonuclease (TREX)1, TREX2, and similar proteins; Three prime repair exonuclease (TREX)1 and TREX2 are closely related DEDDh-type DnaQ-like 3'-5' exonucleases. They contain three conserved sequence motifs known as ExoI, II, and III, with a specific Hx(4)D conserved pattern at ExoIII. These motifs contain four conserved acidic residues that participate in coordination of divalent metal ions required for catalysis. Both proteins play a role in the metabolism and clearance of DNA. TREX1 is the major 3'-5' exonuclease activity detected in mammalian cells. Mutations in the human TREX1 gene can cause Aicardi-Goutieres syndrome (AGS), which is characterized by perturbed innate immunity and presents itself as a severe neurological disease. TREX1 degrades ssDNA generated by aberrant replication intermediates to prevent checkpoint activation and autoimmune disease. There are distinct structural differences between TREX1 and TREX2 that point to different biological roles for these proteins. The main difference is the presence of about 70 amino acids at the C-terminus of TREX1. In addition, TREX1 has a nonrepetitive proline-rich region that is not present in the TREX2 protein. Furthermore, TREX2 contains a conserved DNA binding loop positioned adjacent to the active site that has a sequence distinct from the corresponding loop in TREX1. Truncations in the C-terminus of human TREX1 cause autosomal dominant retinal vasculopathy with cerebral leukodystrophy (RVCL), a neurovascular syndrome featuring a progressive loss of visual acuity combined with a variable neurological picture.


:

Pssm-ID: 99839 [Multi-domain]  Cd Length: 177  Bit Score: 222.59  E-value: 5.55e-73
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  14 LIFLDLEATGLPFS-QPKITELCLLAVHRYALEGlsapqgPSPTAPVPPRVLDKLSLCVAPGKVCSPAASEITGLSTAVL 92
Cdd:cd06136   1 FVFLDLETTGLPKHnRPEITELCLVAVHRDHLLN------TSRDKPALPRVLDKLSLCFNPGRAISPGASEITGLSNDLL 74
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  93 AAhgRRAFDADLVNLIRTFLQRQPQPWCLVAHNGDRYDFPlLRAELALLGLASALDDAFCVDSITALKALEPtgsssehg 172
Cdd:cd06136  75 EH--KAPFDSDTANLIKLFLRRQPKPICLVAHNGNRFDFP-ILRSELERLGTKLPDDILCVDSLPAFRELDQ-------- 143
                       170       180       190
                ....*....|....*....|....*....|....*....
gi 60097923 173 prksySLGSVYTRLYGQAPPDSHTAEGDVLALLSVCQWR 211
Cdd:cd06136 144 -----SLGSLYKRLFGQEPKNSHTAEGDVLALLKCALHK 177
 
Name Accession Description Interval E-value
TREX1_2 cd06136
DEDDh 3'-5' exonuclease domain of three prime repair exonuclease (TREX)1, TREX2, and similar ...
14-211 5.55e-73

DEDDh 3'-5' exonuclease domain of three prime repair exonuclease (TREX)1, TREX2, and similar proteins; Three prime repair exonuclease (TREX)1 and TREX2 are closely related DEDDh-type DnaQ-like 3'-5' exonucleases. They contain three conserved sequence motifs known as ExoI, II, and III, with a specific Hx(4)D conserved pattern at ExoIII. These motifs contain four conserved acidic residues that participate in coordination of divalent metal ions required for catalysis. Both proteins play a role in the metabolism and clearance of DNA. TREX1 is the major 3'-5' exonuclease activity detected in mammalian cells. Mutations in the human TREX1 gene can cause Aicardi-Goutieres syndrome (AGS), which is characterized by perturbed innate immunity and presents itself as a severe neurological disease. TREX1 degrades ssDNA generated by aberrant replication intermediates to prevent checkpoint activation and autoimmune disease. There are distinct structural differences between TREX1 and TREX2 that point to different biological roles for these proteins. The main difference is the presence of about 70 amino acids at the C-terminus of TREX1. In addition, TREX1 has a nonrepetitive proline-rich region that is not present in the TREX2 protein. Furthermore, TREX2 contains a conserved DNA binding loop positioned adjacent to the active site that has a sequence distinct from the corresponding loop in TREX1. Truncations in the C-terminus of human TREX1 cause autosomal dominant retinal vasculopathy with cerebral leukodystrophy (RVCL), a neurovascular syndrome featuring a progressive loss of visual acuity combined with a variable neurological picture.


Pssm-ID: 99839 [Multi-domain]  Cd Length: 177  Bit Score: 222.59  E-value: 5.55e-73
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  14 LIFLDLEATGLPFS-QPKITELCLLAVHRYALEGlsapqgPSPTAPVPPRVLDKLSLCVAPGKVCSPAASEITGLSTAVL 92
Cdd:cd06136   1 FVFLDLETTGLPKHnRPEITELCLVAVHRDHLLN------TSRDKPALPRVLDKLSLCFNPGRAISPGASEITGLSNDLL 74
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  93 AAhgRRAFDADLVNLIRTFLQRQPQPWCLVAHNGDRYDFPlLRAELALLGLASALDDAFCVDSITALKALEPtgsssehg 172
Cdd:cd06136  75 EH--KAPFDSDTANLIKLFLRRQPKPICLVAHNGNRFDFP-ILRSELERLGTKLPDDILCVDSLPAFRELDQ-------- 143
                       170       180       190
                ....*....|....*....|....*....|....*....
gi 60097923 173 prksySLGSVYTRLYGQAPPDSHTAEGDVLALLSVCQWR 211
Cdd:cd06136 144 -----SLGSLYKRLFGQEPKNSHTAEGDVLALLKCALHK 177
DnaQ COG0847
DNA polymerase III, epsilon subunit or related 3'-5' exonuclease [Replication, recombination ...
14-204 1.15e-08

DNA polymerase III, epsilon subunit or related 3'-5' exonuclease [Replication, recombination and repair];


Pssm-ID: 440608 [Multi-domain]  Cd Length: 163  Bit Score: 53.64  E-value: 1.15e-08
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  14 LIFLDLEATGLPFSQPKITELCLLAVHryaleglsapQGpsptapvppRVLDKLSLCVAPGKVCSPAASEITGLSTAVLA 93
Cdd:COG0847   2 FVVLDTETTGLDPAKDRIIEIGAVKVD----------DG---------RIVETFHTLVNPERPIPPEATAIHGITDEDVA 62
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  94 ahGRRAFdADLVNLIRTFLQRQPqpwcLVAHN-----------GDRYDFPLLRAElallglasalddafCVDSITALKAL 162
Cdd:COG0847  63 --DAPPF-AEVLPELLEFLGGAV----LVAHNaafdlgflnaeLRRAGLPLPPFP--------------VLDTLRLARRL 121
                       170       180       190       200
                ....*....|....*....|....*....|....*....|..
gi 60097923 163 EPtgsssehgPRKSYSLGSVYTRlYGQAPPDSHTAEGDVLAL 204
Cdd:COG0847 122 LP--------GLPSYSLDALCER-LGIPFDERHRALADAEAT 154
EXOIII smart00479
exonuclease domain in DNA-polymerase alpha and epsilon chain, ribonuclease T and other ...
13-205 1.61e-08

exonuclease domain in DNA-polymerase alpha and epsilon chain, ribonuclease T and other exonucleases;


Pssm-ID: 214685 [Multi-domain]  Cd Length: 169  Bit Score: 53.07  E-value: 1.61e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923     13 TLIFLDLEATGLPFSQPKITELCLLAVHRyaleglsapqgpsptapvpPRVLDKLSLCVAPGKVCSPAASEITGLSTAVL 92
Cdd:smart00479   1 TLVVIDCETTGLDPGKDEIIEIAAVDVDG-------------------GEIIEVFDTYVKPDRPITDYATEIHGITPEML 61
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923     93 AahGRRAFDaDLVNLIRTFLQRQpqpwCLVAHNGDRYDFPLLRAELALLGLASALdDAFCVDSITALKALEPtgsssehg 172
Cdd:smart00479  62 D--DAPTFE-EVLEELLEFLRGR----ILVAGNSAHFDLRFLKLEHPRLGIKQPP-KLPVIDTLKLARATNP-------- 125
                          170       180       190
                   ....*....|....*....|....*....|...
gi 60097923    173 PRKSYSLGSVYTRLYGQAPPDSHTAEGDVLALL 205
Cdd:smart00479 126 GLPKYSLKKLAKRLLLEVIQRAHRALDDARATA 158
PRK09182 PRK09182
DNA polymerase III subunit epsilon; Validated
7-123 7.04e-03

DNA polymerase III subunit epsilon; Validated


Pssm-ID: 236397 [Multi-domain]  Cd Length: 294  Bit Score: 37.65  E-value: 7.04e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923    7 PPGPVQTLIFLDLEATGLPFSQPKITELCLLAVhRYALEG--------LSAPQGPSptAPVPPRVldklslcvapgkvcs 78
Cdd:PRK09182  32 RGEFVRLGVILDTETTGLDPRKDEIIEIGMVAF-EYDDDGrigdvldtFGGLQQPS--RPIPPEI--------------- 93
                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 60097923   79 paaSEITGLSTAVLAAHG-----RRAF--DADLVnlI-------RTFLQR-----QPQPW-CLVA 123
Cdd:PRK09182  94 ---TRLTGITDEMVAGQTidpaaVDALiaPADLI--IahnagfdRPFLERfspvfATKPWaCSVS 153
 
Name Accession Description Interval E-value
TREX1_2 cd06136
DEDDh 3'-5' exonuclease domain of three prime repair exonuclease (TREX)1, TREX2, and similar ...
14-211 5.55e-73

DEDDh 3'-5' exonuclease domain of three prime repair exonuclease (TREX)1, TREX2, and similar proteins; Three prime repair exonuclease (TREX)1 and TREX2 are closely related DEDDh-type DnaQ-like 3'-5' exonucleases. They contain three conserved sequence motifs known as ExoI, II, and III, with a specific Hx(4)D conserved pattern at ExoIII. These motifs contain four conserved acidic residues that participate in coordination of divalent metal ions required for catalysis. Both proteins play a role in the metabolism and clearance of DNA. TREX1 is the major 3'-5' exonuclease activity detected in mammalian cells. Mutations in the human TREX1 gene can cause Aicardi-Goutieres syndrome (AGS), which is characterized by perturbed innate immunity and presents itself as a severe neurological disease. TREX1 degrades ssDNA generated by aberrant replication intermediates to prevent checkpoint activation and autoimmune disease. There are distinct structural differences between TREX1 and TREX2 that point to different biological roles for these proteins. The main difference is the presence of about 70 amino acids at the C-terminus of TREX1. In addition, TREX1 has a nonrepetitive proline-rich region that is not present in the TREX2 protein. Furthermore, TREX2 contains a conserved DNA binding loop positioned adjacent to the active site that has a sequence distinct from the corresponding loop in TREX1. Truncations in the C-terminus of human TREX1 cause autosomal dominant retinal vasculopathy with cerebral leukodystrophy (RVCL), a neurovascular syndrome featuring a progressive loss of visual acuity combined with a variable neurological picture.


Pssm-ID: 99839 [Multi-domain]  Cd Length: 177  Bit Score: 222.59  E-value: 5.55e-73
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  14 LIFLDLEATGLPFS-QPKITELCLLAVHRYALEGlsapqgPSPTAPVPPRVLDKLSLCVAPGKVCSPAASEITGLSTAVL 92
Cdd:cd06136   1 FVFLDLETTGLPKHnRPEITELCLVAVHRDHLLN------TSRDKPALPRVLDKLSLCFNPGRAISPGASEITGLSNDLL 74
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  93 AAhgRRAFDADLVNLIRTFLQRQPQPWCLVAHNGDRYDFPlLRAELALLGLASALDDAFCVDSITALKALEPtgsssehg 172
Cdd:cd06136  75 EH--KAPFDSDTANLIKLFLRRQPKPICLVAHNGNRFDFP-ILRSELERLGTKLPDDILCVDSLPAFRELDQ-------- 143
                       170       180       190
                ....*....|....*....|....*....|....*....
gi 60097923 173 prksySLGSVYTRLYGQAPPDSHTAEGDVLALLSVCQWR 211
Cdd:cd06136 144 -----SLGSLYKRLFGQEPKNSHTAEGDVLALLKCALHK 177
DEDDh cd06127
DEDDh 3'-5' exonuclease domain family; DEDDh exonucleases, part of the DnaQ-like (or DEDD) ...
15-207 6.28e-12

DEDDh 3'-5' exonuclease domain family; DEDDh exonucleases, part of the DnaQ-like (or DEDD) exonuclease superfamily, catalyze the excision of nucleoside monophosphates at the DNA or RNA termini in the 3'-5' direction. These proteins contain four invariant acidic residues in three conserved sequence motifs termed ExoI, ExoII and ExoIII. DEDDh exonucleases are classified as such because of the presence of specific Hx(4)D conserved pattern at the ExoIII motif. The four conserved acidic residues are clustered around the active site and serve as ligands for the two metal ions required for catalysis. Most DEDDh exonucleases are the proofreading subunits (epsilon) or domains of bacterial DNA polymerase III, the main replicating enzyme in bacteria, which functions as the chromosomal replicase. Other members include other DNA and RNA exonucleases such as RNase T, Oligoribonuclease, and RNA exonuclease (REX), among others.


Pssm-ID: 176648 [Multi-domain]  Cd Length: 159  Bit Score: 62.70  E-value: 6.28e-12
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  15 IFLDLEATGLPFSQPKITELCLLAVHRyaleglsapqgpsptapvPPRVLDKLSLCVAPGKVCSPAASEITGLSTAVLaA 94
Cdd:cd06127   1 VVFDTETTGLDPKKDRIIEIGAVKVDG------------------GIEIVERFETLVNPGRPIPPEATAIHGITDEML-A 61
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  95 HGRRAfdADLVNLIRTFLQRQPqpwcLVAHNGdRYDFPLLRAELALLGLASAldDAFCVDSITALKALEPTgsssehgpR 174
Cdd:cd06127  62 DAPPF--EEVLPEFLEFLGGRV----LVAHNA-SFDLRFLNRELRRLGGPPL--PNPWIDTLRLARRLLPG--------L 124
                       170       180       190
                ....*....|....*....|....*....|...
gi 60097923 175 KSYSLGSVYTRLYGQAPPDSHTAEGDVLALLSV 207
Cdd:cd06127 125 RSHRLGLLLAERYGIPLEGAHRALADALATAEL 157
DnaQ COG0847
DNA polymerase III, epsilon subunit or related 3'-5' exonuclease [Replication, recombination ...
14-204 1.15e-08

DNA polymerase III, epsilon subunit or related 3'-5' exonuclease [Replication, recombination and repair];


Pssm-ID: 440608 [Multi-domain]  Cd Length: 163  Bit Score: 53.64  E-value: 1.15e-08
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  14 LIFLDLEATGLPFSQPKITELCLLAVHryaleglsapQGpsptapvppRVLDKLSLCVAPGKVCSPAASEITGLSTAVLA 93
Cdd:COG0847   2 FVVLDTETTGLDPAKDRIIEIGAVKVD----------DG---------RIVETFHTLVNPERPIPPEATAIHGITDEDVA 62
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  94 ahGRRAFdADLVNLIRTFLQRQPqpwcLVAHN-----------GDRYDFPLLRAElallglasalddafCVDSITALKAL 162
Cdd:COG0847  63 --DAPPF-AEVLPELLEFLGGAV----LVAHNaafdlgflnaeLRRAGLPLPPFP--------------VLDTLRLARRL 121
                       170       180       190       200
                ....*....|....*....|....*....|....*....|..
gi 60097923 163 EPtgsssehgPRKSYSLGSVYTRlYGQAPPDSHTAEGDVLAL 204
Cdd:COG0847 122 LP--------GLPSYSLDALCER-LGIPFDERHRALADAEAT 154
EXOIII smart00479
exonuclease domain in DNA-polymerase alpha and epsilon chain, ribonuclease T and other ...
13-205 1.61e-08

exonuclease domain in DNA-polymerase alpha and epsilon chain, ribonuclease T and other exonucleases;


Pssm-ID: 214685 [Multi-domain]  Cd Length: 169  Bit Score: 53.07  E-value: 1.61e-08
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923     13 TLIFLDLEATGLPFSQPKITELCLLAVHRyaleglsapqgpsptapvpPRVLDKLSLCVAPGKVCSPAASEITGLSTAVL 92
Cdd:smart00479   1 TLVVIDCETTGLDPGKDEIIEIAAVDVDG-------------------GEIIEVFDTYVKPDRPITDYATEIHGITPEML 61
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923     93 AahGRRAFDaDLVNLIRTFLQRQpqpwCLVAHNGDRYDFPLLRAELALLGLASALdDAFCVDSITALKALEPtgsssehg 172
Cdd:smart00479  62 D--DAPTFE-EVLEELLEFLRGR----ILVAGNSAHFDLRFLKLEHPRLGIKQPP-KLPVIDTLKLARATNP-------- 125
                          170       180       190
                   ....*....|....*....|....*....|...
gi 60097923    173 PRKSYSLGSVYTRLYGQAPPDSHTAEGDVLALL 205
Cdd:smart00479 126 GLPKYSLKKLAKRLLLEVIQRAHRALDDARATA 158
PolC COG2176
DNA polymerase III, alpha subunit (gram-positive type) [Replication, recombination and repair]; ...
12-203 4.49e-05

DNA polymerase III, alpha subunit (gram-positive type) [Replication, recombination and repair];


Pssm-ID: 441779 [Multi-domain]  Cd Length: 181  Bit Score: 43.21  E-value: 4.49e-05
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  12 QTLIFLDLEATGLPFSQPKITELCLLAVHryalEGlsapqgpsptapvppRVLDKLSLCVAPGKVCSPAASEITGLSTAV 91
Cdd:COG2176   8 LTYVVFDLETTGLSPKKDEIIEIGAVKVE----NG---------------EIVDRFSTLVNPGRPIPPFITELTGITDEM 68
                        90       100       110       120       130       140       150       160
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923  92 LAahgrrafDA-DLVNLIRTFLQrqpqpWC----LVAHN---------------GDRYDFPllraelallglasalddaf 151
Cdd:COG2176  69 VA-------DApPFEEVLPEFLE-----FLgdavLVAHNasfdlgflnaalkrlGLPFDNP------------------- 117
                       170       180       190       200       210
                ....*....|....*....|....*....|....*....|....*....|..
gi 60097923 152 CVDSITALKALEPTgsssehgpRKSYSLGSVyTRLYGQAPPDSHTAEGDVLA 203
Cdd:COG2176 118 VLDTLELARRLLPE--------LKSYKLDTL-AERLGIPLEDRHRALGDAEA 160
PRK09182 PRK09182
DNA polymerase III subunit epsilon; Validated
7-123 7.04e-03

DNA polymerase III subunit epsilon; Validated


Pssm-ID: 236397 [Multi-domain]  Cd Length: 294  Bit Score: 37.65  E-value: 7.04e-03
                         10        20        30        40        50        60        70        80
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 60097923    7 PPGPVQTLIFLDLEATGLPFSQPKITELCLLAVhRYALEG--------LSAPQGPSptAPVPPRVldklslcvapgkvcs 78
Cdd:PRK09182  32 RGEFVRLGVILDTETTGLDPRKDEIIEIGMVAF-EYDDDGrigdvldtFGGLQQPS--RPIPPEI--------------- 93
                         90       100       110       120       130       140
                 ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 60097923   79 paaSEITGLSTAVLAAHG-----RRAF--DADLVnlI-------RTFLQR-----QPQPW-CLVA 123
Cdd:PRK09182  94 ---TRLTGITDEMVAGQTidpaaVDALiaPADLI--IahnagfdRPFLERfspvfATKPWaCSVS 153
 
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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