NCBI Home Page NCBI Site Search page NCBI Guide that lists and describes the NCBI resources
Conserved domains on  [gi|1720423583|ref|XP_030098687|]
View 

interferon-stimulated gene 20 kDa protein isoform X1 [Mus musculus]

Protein Classification

3'-5' exonuclease family protein( domain architecture ID 1085)

3'-5' exonuclease family protein may cleave nucleotides one at a time from the end (exo) of a polynucleotide chain

CATH:  3.30.420.10
Gene Ontology:  GO:0003676
PubMed:  11988770|11222749

Graphical summary

 Zoom to residue level

show extra options »

Show site features     Horizontal zoom: ×

List of domain hits

Name Accession Description Interval E-value
DnaQ_like_exo super family cl10012
DnaQ-like (or DEDD) 3'-5' exonuclease domain superfamily; The DnaQ-like exonuclease ...
8-144 1.20e-74

DnaQ-like (or DEDD) 3'-5' exonuclease domain superfamily; The DnaQ-like exonuclease superfamily is a structurally conserved group of 3'-5' exonucleases, which catalyze the excision of nucleoside monophosphates at the DNA or RNA termini in the 3'-5' direction. It is also called the DEDD superfamily, after the four invariant acidic residues present in the catalytic site of its members. The superfamily consists of DNA- and RNA-processing enzymes such as the proofreading domains of DNA polymerases, other DNA exonucleases, RNase D, RNase T, Oligoribonuclease and RNA exonucleases (REX). The DnaQ-like exonuclease domain contains three conserved sequence motifs termed ExoI, ExoII and ExoIII, which are clustered around the active site and contain four conserved acidic residues that serve as ligands for the two metal ions required for catalysis. The conservation patterns of the three motifs may vary among different subfamilies. DnaQ-like exonucleases are classified as DEDDy or DEDDh exonucleases depending on the variation of motif III as YX(3)D or HX(4)D, respectively. The significance of the motif differences is still unclear. Almost all RNase families in this superfamily are present only in eukaryotes and bacteria, but not in archaea, suggesting a later origin, which in some cases are accompanied by horizontal gene transfer.


The actual alignment was detected with superfamily member cd06149:

Pssm-ID: 447876  Cd Length: 157  Bit Score: 225.78  E-value: 1.20e-74
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583   8 VAMDCEMVGLGPQ-RVSGLARCSIVNIHGAVLYDKYIRPEGEITDYRTQVSGVTPQHMVRATPFGEARLEILQLLKGKLV 86
Cdd:cd06149     1 VAIDCEMVGTGPGgRESELARCSIVNYHGDVLYDKYIRPEGPVTDYRTRWSGIRRQHLVNATPFAVAQKEILKILKGKVV 80
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 1720423583  87 VGHDLKHDFNALKEDMSKYTIYDTSTDRLLWHEAKLQYYSRVSLRLLCKRLLHKNIQV 144
Cdd:cd06149    81 VGHAIHNDFKALKYFHPKHMTRDTSTIPLLNRKAGFPENCRVSLKVLAKRLLHRDIQV 138
 
Name Accession Description Interval E-value
ISG20 cd06149
DEDDh 3'-5' exonuclease domain of Interferon Stimulated Gene product of 20 kDa, and similar ...
8-144 1.20e-74

DEDDh 3'-5' exonuclease domain of Interferon Stimulated Gene product of 20 kDa, and similar proteins; Interferon (IFN) Stimulated Gene product of 20 kDa (ISG20) is an IFN-induced antiviral exonuclease with a strong preference for single-stranded RNA and minor activity towards single-stranded DNA. It was also independently identified by its response to estrogen and was called HEM45 (human estrogen regulated transcript). ISG20 is a DEDDh-type DnaQ-like 3'-5' exonuclease containing three conserved sequence motifs termed ExoI, ExoII and ExoIII with a specific Hx(4)D conserved pattern at ExoIII. These motifs are clustered around the active site and contain four conserved acidic residues that serve as ligands for the two metal ions required for catalysis. ISG20 may be a major effector of innate immunity against pathogens including viruses, bacteria, and parasites. It is located in promyelocytic leukemia (PML) nuclear bodies, sites for oncogenic DNA viral transcription and replication. It may carry out its function by degrading viral RNAs as part of the IFN-regulated antiviral response.


Pssm-ID: 99852  Cd Length: 157  Bit Score: 225.78  E-value: 1.20e-74
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583   8 VAMDCEMVGLGPQ-RVSGLARCSIVNIHGAVLYDKYIRPEGEITDYRTQVSGVTPQHMVRATPFGEARLEILQLLKGKLV 86
Cdd:cd06149     1 VAIDCEMVGTGPGgRESELARCSIVNYHGDVLYDKYIRPEGPVTDYRTRWSGIRRQHLVNATPFAVAQKEILKILKGKVV 80
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 1720423583  87 VGHDLKHDFNALKEDMSKYTIYDTSTDRLLWHEAKLQYYSRVSLRLLCKRLLHKNIQV 144
Cdd:cd06149    81 VGHAIHNDFKALKYFHPKHMTRDTSTIPLLNRKAGFPENCRVSLKVLAKRLLHRDIQV 138
EXOIII smart00479
exonuclease domain in DNA-polymerase alpha and epsilon chain, ribonuclease T and other ...
6-143 9.23e-35

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


Pssm-ID: 214685 [Multi-domain]  Cd Length: 169  Bit Score: 123.95  E-value: 9.23e-35
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583    6 EVVAMDCEMVGLGPQrVSGLARCSIVNIHG---AVLYDKYIRPEGEITDYRTQVSGVTPQHMVRATPFGEARLEILQLLK 82
Cdd:smart00479   1 TLVVIDCETTGLDPG-KDEIIEIAAVDVDGgeiIEVFDTYVKPDRPITDYATEIHGITPEMLDDAPTFEEVLEELLEFLR 79
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1720423583   83 GK-LVVGHDLKHDFNALKEDMSKYTIYDTST----DRLLWHEAKLQYYSRVSLRLLCKRLLHKNIQ 143
Cdd:smart00479  80 GRiLVAGNSAHFDLRFLKLEHPRLGIKQPPKlpviDTLKLARATNPGLPKYSLKKLAKRLLLEVIQ 145
RNase_T pfam00929
Exonuclease; This family includes a variety of exonuclease proteins, such as ribonuclease T ...
8-143 9.93e-13

Exonuclease; This family includes a variety of exonuclease proteins, such as ribonuclease T and the epsilon subunit of DNA polymerase III.;


Pssm-ID: 395743 [Multi-domain]  Cd Length: 164  Bit Score: 65.07  E-value: 9.93e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583   8 VAMDCEMVGLGPQ--RVSGLARCSIVN--IHGAVLYDKYIRPE--GEITDYRTQVSGVTPQHMVRATPFGEARLEILQLL 81
Cdd:pfam00929   1 VVIDLETTGLDPEkdEIIEIAAVVIDGgeNEIGETFHTYVKPTrlPKLTDECTKFTGITQAMLDNKPSFEEVLEEFLEFL 80
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1720423583  82 -KGKLVVGHDLKHDFNALKEDMSKYTIYDTSTDRLLWHE-----AKLQYYSRVSLRLLCKRLLHKNIQ 143
Cdd:pfam00929  81 rKGNLLVAHNASFDVGFLRYDDKRFLKKPMPKLNPVIDTlildkATYKELPGRSLDALAEKLGLEHIG 148
polC PRK00448
DNA polymerase III PolC; Validated
39-137 6.11e-03

DNA polymerase III PolC; Validated


Pssm-ID: 234767 [Multi-domain]  Cd Length: 1437  Bit Score: 38.28  E-value: 6.11e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583   39 YDKYIRPEGEITDYRTQVSGVTPQHMVRATPFGEARLEILQLLKGKLVVGHDLKHDFNALKE-------DMSKYTIYDT- 110
Cdd:PRK00448   455 FEFFIKPGHPLSAFTTELTGITDDMVKDAPSIEEVLPKFKEFCGDSILVAHNASFDVGFINTnyeklglEKIKNPVIDTl 534
                           90       100
                   ....*....|....*....|....*....
gi 1720423583  111 --StdRLLWHEAKlqyysRVSLRLLCKRL 137
Cdd:PRK00448   535 elS--RFLYPELK-----SHRLNTLAKKF 556
 
Name Accession Description Interval E-value
ISG20 cd06149
DEDDh 3'-5' exonuclease domain of Interferon Stimulated Gene product of 20 kDa, and similar ...
8-144 1.20e-74

DEDDh 3'-5' exonuclease domain of Interferon Stimulated Gene product of 20 kDa, and similar proteins; Interferon (IFN) Stimulated Gene product of 20 kDa (ISG20) is an IFN-induced antiviral exonuclease with a strong preference for single-stranded RNA and minor activity towards single-stranded DNA. It was also independently identified by its response to estrogen and was called HEM45 (human estrogen regulated transcript). ISG20 is a DEDDh-type DnaQ-like 3'-5' exonuclease containing three conserved sequence motifs termed ExoI, ExoII and ExoIII with a specific Hx(4)D conserved pattern at ExoIII. These motifs are clustered around the active site and contain four conserved acidic residues that serve as ligands for the two metal ions required for catalysis. ISG20 may be a major effector of innate immunity against pathogens including viruses, bacteria, and parasites. It is located in promyelocytic leukemia (PML) nuclear bodies, sites for oncogenic DNA viral transcription and replication. It may carry out its function by degrading viral RNAs as part of the IFN-regulated antiviral response.


Pssm-ID: 99852  Cd Length: 157  Bit Score: 225.78  E-value: 1.20e-74
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583   8 VAMDCEMVGLGPQ-RVSGLARCSIVNIHGAVLYDKYIRPEGEITDYRTQVSGVTPQHMVRATPFGEARLEILQLLKGKLV 86
Cdd:cd06149     1 VAIDCEMVGTGPGgRESELARCSIVNYHGDVLYDKYIRPEGPVTDYRTRWSGIRRQHLVNATPFAVAQKEILKILKGKVV 80
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*...
gi 1720423583  87 VGHDLKHDFNALKEDMSKYTIYDTSTDRLLWHEAKLQYYSRVSLRLLCKRLLHKNIQV 144
Cdd:cd06149    81 VGHAIHNDFKALKYFHPKHMTRDTSTIPLLNRKAGFPENCRVSLKVLAKRLLHRDIQV 138
REX4_like cd06144
DEDDh 3'-5' exonuclease domain of RNA exonuclease 4, XPMC2, Interferon Stimulated Gene product ...
8-143 1.59e-61

DEDDh 3'-5' exonuclease domain of RNA exonuclease 4, XPMC2, Interferon Stimulated Gene product of 20 kDa, and similar proteins; This subfamily is composed of RNA exonuclease 4 (REX4 or Rex4p), XPMC2, Interferon (IFN) Stimulated Gene product of 20 kDa (ISG20), and similar proteins. REX4 is involved in pre-rRNA processing. It controls the ratio between the two forms of 5.8S rRNA in yeast. XPMC2 is a Xenopus gene which was identified through its ability to correct a mitotic defect in fission yeast. The human homolog of XPMC2 (hPMC2) may be involved in angiotensin II-induced adrenal cell cycle progression and cell proliferation. ISG20 is an IFN-induced antiviral exonuclease with a strong preference for single-stranded RNA and minor activity towards single-stranded DNA. These proteins are DEDDh-type DnaQ-like 3'-5' exonucleases containing three conserved sequence motifs termed ExoI, ExoII and ExoIII, with a specific Hx(4)D conserved pattern at ExoIII. These motifs are clustered around the active site and contain four conserved acidic residues that serve as ligands for the two metal ions required for catalysis. REX proteins function in the processing and maturation of many RNA species, similar to the function of Escherchia coli RNase T.


Pssm-ID: 99847  Cd Length: 152  Bit Score: 191.96  E-value: 1.59e-61
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583   8 VAMDCEMVGLGP-QRVSGLARCSIVNIHGAVLYDKYIRPEGEITDYRTQVSGVTPQHMVRATPFGEARLEILQLLKGKLV 86
Cdd:cd06144     1 VALDCEMVGVGPdGSESALARVSIVNEDGNVVYDTYVKPQEPVTDYRTAVSGIRPEHLKDAPDFEEVQKKVAELLKGRIL 80
                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|....*..
gi 1720423583  87 VGHDLKHDFNALKEDMSKYTIYDTSTDRLLWHEAKLQyysRVSLRLLCKRLLHKNIQ 143
Cdd:cd06144    81 VGHALKNDLKVLKLDHPKKLIRDTSKYKPLRKTAKGK---SPSLKKLAKQLLGLDIQ 134
DEDDh_RNase cd06137
DEDDh 3'-5' exonuclease domain of the eukaryotic exoribonucleases PAN2, RNA exonuclease (REX) ...
8-143 1.39e-40

DEDDh 3'-5' exonuclease domain of the eukaryotic exoribonucleases PAN2, RNA exonuclease (REX)-1,-3, and -4, ISG20, and similar proteins; This group is composed of eukaryotic exoribonucleases that include PAN2, RNA exonuclease 1 (REX1 or Rex1p), REX3 (Rex3p), REX4 (or Rex4p), ISG20, and similar proteins. They are DEDDh-type DnaQ-like 3'-5' exonucleases containing three conserved sequence motifs termed ExoI, ExoII and ExoIII, with a specific Hx(4)D conserved pattern at ExoIII. These motifs are clustered around the active site and contain four conserved acidic residues that serve as ligands for the two metal ions required for catalysis. PAN2 is the catalytic subunit of poly(A) nuclease (PAN), a Pab1p-dependent 3'-5' exoribonuclease which plays an important role in the posttranscriptional maturation of pre-mRNAs. REX proteins are required for the processing and maturation of many RNA species, and ISG20 is an interferon-induced antiviral exonuclease with a strong preference for single-stranded RNA.


Pssm-ID: 99840  Cd Length: 161  Bit Score: 138.57  E-value: 1.39e-40
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583   8 VAMDCEMVGLGPQRvSGLARCSIVN-IHGAVLYDKYIRPEGEITDYRTQVSGVTPQHMVRA-----TPFG--EARLEILQ 79
Cdd:cd06137     1 VALDCEMVGLADGD-SEVVRISAVDvLTGEVLIDSLVRPSVRVTDWRTRFSGVTPADLEEAakagkTIFGweAARAALWK 79
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1720423583  80 LLKGK-LVVGHDLKHDFNALKedMSKYTIYDTSTDRLLWHEAKLQyYSRVSLRLLCKRLLHKNIQ 143
Cdd:cd06137    80 FIDPDtILVGHSLQNDLDALR--MIHTRVVDTAILTREAVKGPLA-KRQWSLRTLCRDFLGLKIQ 141
EXOIII smart00479
exonuclease domain in DNA-polymerase alpha and epsilon chain, ribonuclease T and other ...
6-143 9.23e-35

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


Pssm-ID: 214685 [Multi-domain]  Cd Length: 169  Bit Score: 123.95  E-value: 9.23e-35
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583    6 EVVAMDCEMVGLGPQrVSGLARCSIVNIHG---AVLYDKYIRPEGEITDYRTQVSGVTPQHMVRATPFGEARLEILQLLK 82
Cdd:smart00479   1 TLVVIDCETTGLDPG-KDEIIEIAAVDVDGgeiIEVFDTYVKPDRPITDYATEIHGITPEMLDDAPTFEEVLEELLEFLR 79
                           90       100       110       120       130       140
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1720423583   83 GK-LVVGHDLKHDFNALKEDMSKYTIYDTST----DRLLWHEAKLQYYSRVSLRLLCKRLLHKNIQ 143
Cdd:smart00479  80 GRiLVAGNSAHFDLRFLKLEHPRLGIKQPPKlpviDTLKLARATNPGLPKYSLKKLAKRLLLEVIQ 145
REX1_like cd06145
DEDDh 3'-5' exonuclease domain of RNA exonuclease 1, -3 and similar eukaryotic proteins; This ...
8-143 3.41e-33

DEDDh 3'-5' exonuclease domain of RNA exonuclease 1, -3 and similar eukaryotic proteins; This subfamily is composed of RNA exonuclease 1 (REX1 or Rex1p), REX3 (or Rex3p), and similar eukaryotic proteins. In yeast, REX1 and REX3 are required for 5S rRNA and MRP (mitochondrial RNA processing) RNA maturation, respectively. They are DEDDh-type DnaQ-like 3'-5' exonucleases containing three conserved sequence motifs termed ExoI, ExoII and ExoIII, with a specific Hx(4)D conserved pattern at ExoIII. These motifs are clustered around the active site and contain four conserved acidic residues that serve as ligands for the two metal ions required for catalysis. REX1 is the major exonuclease responsible for pre-tRNA trail trimming and may also be involved in nuclear CCA turnover. REX proteins function in the processing and maturation of many RNA species, similar to the function of Escherichia coli RNase T.


Pssm-ID: 99848  Cd Length: 150  Bit Score: 119.13  E-value: 3.41e-33
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583   8 VAMDCEMV--GLGpqrvSGLARCSIVNIHGAVLYDKYIRPEGEITDYRTQVSGVTPQHMVRATP-FGEARLEILQLL-KG 83
Cdd:cd06145     1 FALDCEMCytTDG----LELTRVTVVDENGKVVLDELVKPDGEIVDYNTRFSGITEEMLENVTTtLEDVQKKLLSLIsPD 76
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583  84 KLVVGHDLKHDFNALKedMSKYTIYDTStdrLLWHeAKLQYYSRVSLRLLCKRLLHKNIQ 143
Cdd:cd06145    77 TILVGHSLENDLKALK--LIHPRVIDTA---ILFP-HPRGPPYKPSLKNLAKKYLGRDIQ 130
RNase_T pfam00929
Exonuclease; This family includes a variety of exonuclease proteins, such as ribonuclease T ...
8-143 9.93e-13

Exonuclease; This family includes a variety of exonuclease proteins, such as ribonuclease T and the epsilon subunit of DNA polymerase III.;


Pssm-ID: 395743 [Multi-domain]  Cd Length: 164  Bit Score: 65.07  E-value: 9.93e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583   8 VAMDCEMVGLGPQ--RVSGLARCSIVN--IHGAVLYDKYIRPE--GEITDYRTQVSGVTPQHMVRATPFGEARLEILQLL 81
Cdd:pfam00929   1 VVIDLETTGLDPEkdEIIEIAAVVIDGgeNEIGETFHTYVKPTrlPKLTDECTKFTGITQAMLDNKPSFEEVLEEFLEFL 80
                          90       100       110       120       130       140
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1720423583  82 -KGKLVVGHDLKHDFNALKEDMSKYTIYDTSTDRLLWHE-----AKLQYYSRVSLRLLCKRLLHKNIQ 143
Cdd:pfam00929  81 rKGNLLVAHNASFDVGFLRYDDKRFLKKPMPKLNPVIDTlildkATYKELPGRSLDALAEKLGLEHIG 148
PAN2_exo cd06143
DEDDh 3'-5' exonuclease domain of the eukaryotic exoribonuclease PAN2; PAN2 is the catalytic ...
8-143 7.00e-10

DEDDh 3'-5' exonuclease domain of the eukaryotic exoribonuclease PAN2; PAN2 is the catalytic subunit of poly(A) nuclease (PAN), a Pab1p-dependent 3'-5' exoribonuclease which plays an important role in the posttranscriptional maturation of pre-mRNAs. PAN catalyzes the deadenylation of poly(A) tails, which are initially synthesized to default lengths of 70 to 90, to mRNA-specific lengths of 55 to 71. Pab1p and PAN also play a role in the export and decay of mRNA. PAN2 contains a DEDDh-type DnaQ-like 3'-5' exonuclease domain with three conserved sequence motifs termed ExoI, ExoII and ExoIII, with a specific Hx(4)D conserved pattern at ExoIII. These motifs are clustered around the active site and contain four conserved acidic residues that serve as ligands for the two metal ions required for catalysis.


Pssm-ID: 99846  Cd Length: 174  Bit Score: 57.24  E-value: 7.00e-10
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583   8 VAMDCEMVGLGP---------------QRVSGLARCSIV----NIHGAVLYDKYIRPEGEITDYRTQVSGVTP------- 61
Cdd:cd06143     1 VAIDAEFVKLKPeeteirsdgtkstirPSQMSLARVSVVrgegELEGVPFIDDYISTTEPVVDYLTRFSGIKPgdldpkt 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583  62 -QHMVraTPFGEARLEiLQLL--KGKLVVGHDLKHDFNALKEDMSKYTIYDTSTdrLLWHEAKlqyySRVSLRLLCKRLL 138
Cdd:cd06143    81 sSKNL--TTLKSAYLK-LRLLvdLGCIFVGHGLAKDFRVINIQVPKEQVIDTVE--LFHLPGQ----RKLSLRFLAWYLL 151

                  ....*
gi 1720423583 139 HKNIQ 143
Cdd:cd06143   152 GEKIQ 156
DNA_pol_III_epsilon_like cd06130
an uncharacterized bacterial subgroup of the DEDDh 3'-5' exonuclease domain family with ...
28-107 4.38e-07

an uncharacterized bacterial subgroup of the DEDDh 3'-5' exonuclease domain family with similarity to the epsilon subunit of DNA polymerase III; This subfamily is composed of uncharacterized bacterial proteins with similarity to the epsilon subunit of DNA polymerase III (Pol III), a multisubunit polymerase which is the main DNA replicating enzyme in bacteria, functioning as the chromosomal replicase. The Pol III holoenzyme is a complex of ten different subunits, three of which (alpha, epsilon, and theta) compose the catalytic core. The Pol III epsilon subunit, encoded by the dnaQ gene, is a DEDDh-type 3'-5' exonuclease which is responsible for the proofreading activity of the polymerase, increasing the fidelity of DNA synthesis. It contains three conserved sequence motifs termed ExoI, ExoII and ExoIII, with a specific Hx(4)D conserved pattern at ExoIII. These motifs are clustered around the active site and contain four conserved acidic residues that serve as ligands for the two metal ions required for catalysis. The epsilon subunit of Pol III also functions as a stabilizer of the holoenzyme complex.


Pssm-ID: 99834 [Multi-domain]  Cd Length: 156  Bit Score: 48.66  E-value: 4.38e-07
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583  28 CSI--VNIHGAVLYDKY---IRPEGEITDYRTQVSGVTPQHMVRATPFGEARLEILQLLKGKLVVGHDLKHDFNALKEDM 102
Cdd:cd06130    17 CSIglVKVRDGQIVDTFytlIRPPTRFDPFNIAIHGITPEDVADAPTFPEVWPEIKPFLGGSLVVAHNASFDRSVLRAAL 96

                  ....*
gi 1720423583 103 SKYTI 107
Cdd:cd06130    97 EAYGL 101
polC PRK00448
DNA polymerase III PolC; Validated
39-137 6.11e-03

DNA polymerase III PolC; Validated


Pssm-ID: 234767 [Multi-domain]  Cd Length: 1437  Bit Score: 38.28  E-value: 6.11e-03
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720423583   39 YDKYIRPEGEITDYRTQVSGVTPQHMVRATPFGEARLEILQLLKGKLVVGHDLKHDFNALKE-------DMSKYTIYDT- 110
Cdd:PRK00448   455 FEFFIKPGHPLSAFTTELTGITDDMVKDAPSIEEVLPKFKEFCGDSILVAHNASFDVGFINTnyeklglEKIKNPVIDTl 534
                           90       100
                   ....*....|....*....|....*....
gi 1720423583  111 --StdRLLWHEAKlqyysRVSLRLLCKRL 137
Cdd:PRK00448   535 elS--RFLYPELK-----SHRLNTLAKKF 556
 
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.
Help | Disclaimer | Write to the Help Desk
NCBI | NLM | NIH