uracil-DNA glycosylase (UDG) excises uracil residues from the DNA which can arise as a result of misincorporation of dUMP residues by DNA polymerase or due to deamination of cytosine
Uracil DNA glycosylase family 1 subfamily, includes Human uracil DNA glycosylase and similar ...
21-220
8.92e-136
Uracil DNA glycosylase family 1 subfamily, includes Human uracil DNA glycosylase and similar proteins; Uracil DNA glycosylase family 1 is the most efficient of all uracil-DNA glycosylases (UDGs, also known as UNGs) and shows a specificity for uracil in DNA. UDG catalyzes the removal of uracil from DNA to initiate the DNA base excision repair pathway. Uracil in DNA can arise as a result of mis-incorporation of dUMP residues by DNA polymerase or deamination of cytosine. Uracil mispaired with guanine in DNA is one of the major pro-mutagenic events, causing G:C->A:T mutations. Thus, UDG is an essential enzyme for maintaining the integrity of genetic information. UDGs have been classified into various families on the basis of their substrate specificity, conserved motifs, and structural similarities. Although these families demonstrate different substrate specificities, often the function of one enzyme can be complemented by the other.
Pssm-ID: 381678 Cd Length: 200 Bit Score: 379.10 E-value: 8.92e-136
uracil-DNA glycosylase; All proteins in this family for which functions are known are ...
7-215
1.52e-131
uracil-DNA glycosylase; All proteins in this family for which functions are known are uracil-DNA glycosylases that function in base excision repair. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]
Pssm-ID: 273182 Cd Length: 211 Bit Score: 368.85 E-value: 1.52e-131
Uracil DNA glycosylase family 1 subfamily, includes Human uracil DNA glycosylase and similar ...
21-220
8.92e-136
Uracil DNA glycosylase family 1 subfamily, includes Human uracil DNA glycosylase and similar proteins; Uracil DNA glycosylase family 1 is the most efficient of all uracil-DNA glycosylases (UDGs, also known as UNGs) and shows a specificity for uracil in DNA. UDG catalyzes the removal of uracil from DNA to initiate the DNA base excision repair pathway. Uracil in DNA can arise as a result of mis-incorporation of dUMP residues by DNA polymerase or deamination of cytosine. Uracil mispaired with guanine in DNA is one of the major pro-mutagenic events, causing G:C->A:T mutations. Thus, UDG is an essential enzyme for maintaining the integrity of genetic information. UDGs have been classified into various families on the basis of their substrate specificity, conserved motifs, and structural similarities. Although these families demonstrate different substrate specificities, often the function of one enzyme can be complemented by the other.
Pssm-ID: 381678 Cd Length: 200 Bit Score: 379.10 E-value: 8.92e-136
uracil-DNA glycosylase; All proteins in this family for which functions are known are ...
7-215
1.52e-131
uracil-DNA glycosylase; All proteins in this family for which functions are known are uracil-DNA glycosylases that function in base excision repair. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]
Pssm-ID: 273182 Cd Length: 211 Bit Score: 368.85 E-value: 1.52e-131
Uracil DNA glycosylase family 1, includes Human uracil DNA glycosylase, Vaccinia virus protein ...
59-192
2.94e-46
Uracil DNA glycosylase family 1, includes Human uracil DNA glycosylase, Vaccinia virus protein D4, Nitratifractor salsuginis UNG and similar proteins; Uracil DNA glycosylase family 1 is the most efficient of all uracil-DNA glycosylases (UDGs, also known as UNGs) and shows a specificity for uracil in DNA. UDG catalyzes the removal of uracil from DNA to initiate the DNA base excision repair pathway. Uracil in DNA can arise as a result of misincorporation of dUMP residues by DNA polymerase or deamination of cytosine. Uracil mispaired with guanine in DNA is one of the major pro-mutagenic events, causing G:C->A:T mutations. Thus, UDG is an essential enzyme for maintaining the integrity of genetic information. UDGs have been classified into various families on the basis of their substrate specificity, conserved motifs, and structural similarities. Although these families demonstrate different substrate specificities, often the function of one enzyme can be complemented by the other. More distant members of UDG family 1 include Nitratifractor salsuginis UNG (NsaUNG) and Vaccinia virus (VAVC) protein D4 uracil-DNA glycosylase, a subunit of the VACV DNA polymerase holoenzyme. NsaUNG only exhibits robust enzymatic activity on uracil-containing DNAs, in particular double-stranded uracil-containing substrates; it does not act on hypoxanthine- and xanthine-containing substrates. NsUNG is not inhibited by Ugi protein that specifically inhibits conventional family 1 UDGs. D4, in addition to excising uracil residues from DNA, is part of a heterodimeric processivity factor which potentiates the DNA polymerase activity.
Pssm-ID: 381686 Cd Length: 135 Bit Score: 149.79 E-value: 2.94e-46
uracil-DNA glycosylases (UDG) and related enzymes; Uracil-DNA glycosylases (UDGs) initiate ...
59-193
1.00e-16
uracil-DNA glycosylases (UDG) and related enzymes; Uracil-DNA glycosylases (UDGs) initiate repair of uracils in DNA. Uracil may arise from misincorporation of dUMP residues by DNA polymerase or via deamination of cytosine. Uracil in DNA mispaired with guanine is one of the major pro-mutagenic events, causing G:C->A:T mutations; thus, UDG is an essential enzyme for maintaining the integrity of genetic information. UDGs have been classified into various families on the basis of their substrate specificity, conserved motifs, and structural similarities. Although these families demonstrate different substrate specificities, often the function of one enzyme can be complemented by the other. UDG family 1 is the most efficient uracil-DNA glycosylase (UDG, also known as UNG) and shows a specificity for uracil in DNA. UDG family 2 includes thymine DNA glycosylase which removes uracil and thymine from G:U and G:T mismatches, and mismatch-specific uracil DNA glycosylase (MUG) which in Escherichia coli is highly specific to G:U mismatches, but also repairs G:T mismatches at high enzyme concentration. UDG family 3 includes Human SMUG1 which can remove uracil and its oxidized pyrimidine derivatives from, single-stranded DNA and double-stranded DNA with a preference for single-stranded DNA. Pedobacter heparinus SMUG2, which is UDG family 3 SMUG1-like, displays catalytic activities towards DNA containing uracil or hypoxanthine/xanthine. UDG family 4 includes Thermotoga maritima TTUDGA, a robust UDG which like family 1, acts on double-stranded and single-stranded uracil-containing DNA. UDG family 5 (UDGb) includes Thermus thermophilus HB8 TTUDGB which acts on double-stranded uracil-containing DNA; it is a hypoxanthine DNA glycosylase acting on double-stranded hypoxanthine-containing DNA except for the C/I base pair, as well as a xanthine DNA glycosylase which acts on both double-stranded and single-stranded xanthine-containing DNA. UDG family 6 hypoxanthine-DNA glycosylase lacks any detectable UDG activity; it excises hypoxanthine. Other UDG families include one represented by Bradyrhizobium diazoefficiens Blr0248 which prefers single-stranded DNA and removes uracil, 5-hydroxymethyl-uracil or xanthine from it.
Pssm-ID: 381677 Cd Length: 125 Bit Score: 73.58 E-value: 1.00e-16
Uracil DNA glycosylase family 1 subfamily, includes Vaccinia virus protein D4 and similar ...
11-220
1.41e-06
Uracil DNA glycosylase family 1 subfamily, includes Vaccinia virus protein D4 and similar proteins; Vaccinia virus (VAVC) protein D4 uracil-DNA glycosylase, is a subunit of the VACV DNA polymerase holoenzyme, and a more distant member of uracil DNA glycosylase (UDG) family 1. D4, in addition to excising uracil residues from DNA, is part of a heterodimeric processivity factor which potentiates the DNA polymerase activity. UDG catalyzes the removal of uracil from DNA to initiate the DNA base excision repair pathway. Uracil in DNA can arise as a result of mis-incorporation of dUMP residues by DNA polymerase or deamination of cytosine. Uracil mispaired with guanine in DNA is one of the major pro-mutagenic events, causing G:C->A:T mutations. Thus, UDG is an essential enzyme for maintaining the integrity of genetic information. UDGs have been classified into various families on the basis of their substrate specificity, conserved motifs, and structural similarities. Although these families demonstrate different substrate specificities, often the function of one enzyme can be complemented by the other.
Pssm-ID: 381687 Cd Length: 200 Bit Score: 47.05 E-value: 1.41e-06
Uracil DNA glycosylase family 1 subfamily, includes Nitratifractor salsuginis UNG and similar ...
60-188
4.63e-04
Uracil DNA glycosylase family 1 subfamily, includes Nitratifractor salsuginis UNG and similar proteins; Uracil DNA glycosylase family 1 is the most efficient of all uracil-DNA glycosylases (UDGs, also known as UNGs) and shows a specificity for uracil in DNA. Nitratifractor salsuginis UNG (NsaUNG) only exhibits robust enzymatic activity on uracil-containing DNAs, in particular double-stranded uracil-containing substrates, and does not act on hypoxanthine- and xanthine-containing substrates. NsUNG is not inhibited by Ugi protein that specifically inhibits conventional family 1 UDGs. UDG catalyzes the removal of uracil from DNA to initiate the DNA base excision repair pathway. Uracil in DNA can arise as a result of misincorporation of dUMP residues by DNA polymerase or deamination of cytosine. Uracil mispaired with guanine in DNA is one of the major pro-mutagenic events, causing G:C->A:T mutations. Thus, UDG is an essential enzyme for maintaining the integrity of genetic information. UDGs have been classified into various families on the basis of their substrate specificity, conserved motifs, and structural similarities. Although these families demonstrate different substrate specificities, often the function of one enzyme can be complemented by the other.
Pssm-ID: 381688 Cd Length: 174 Bit Score: 39.43 E-value: 4.63e-04
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.
of the residues that compose this conserved feature have been mapped to the query sequence.
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