DNA polymerase type-B family catalytic domain. DNA-directed DNA polymerases elongate DNA by ...
313-492
1.49e-12
DNA polymerase type-B family catalytic domain. DNA-directed DNA polymerases elongate DNA by adding nucleotide triphosphate (dNTP) residues to the 5'-end of the growing chain of DNA. DNA-directed DNA polymerases are multifunctional with both synthetic (polymerase) and degradative modes (exonucleases) and play roles in the processes of DNA replication, repair, and recombination. DNA-dependent DNA polymerases can be classified in six main groups based upon their phylogenetic relationships with E. coli polymerase I (class A), E. coli polymerase II (class B), E. coli polymerase III (class C), euryarchaeota polymerase II (class D), human polymerase beta (class x), E. coli UmuC/DinB, and eukaryotic RAP 30/Xeroderma pigmentosum variant (class Y). Family B DNA polymerases include E. coli DNA polymerase II, some eubacterial phage DNA polymerases, nuclear replicative DNA polymerases (alpha, delta, epsilon, and zeta), and eukaryotic viral and plasmid-borne enzymes. DNA polymerase is made up of distinct domains and sub-domains. The polymerase domain of DNA polymerase type B (Pol domain) is responsible for the template-directed polymerization of dNTPs onto the growing primer strand of duplex DNA that is usually magnesium dependent. In general, the architecture of the Pol domain has been likened to a right hand with fingers, thumb, and palm sub-domains with a deep groove to accommodate the nucleic acid substrate. There are a few conserved motifs in the Pol domain of family B DNA polymerases. The conserved aspartic acid residues in the DTDS motifs of the palm sub-domain is crucial for binding to divalent metal ion and is suggested to be important for polymerase catalysis.
The actual alignment was detected with superfamily member cd00145:
Pssm-ID: 353046 [Multi-domain] Cd Length: 323 Bit Score: 68.94 E-value: 1.49e-12
DNA polymerase type-B family catalytic domain. DNA-directed DNA polymerases elongate DNA by ...
313-492
1.49e-12
DNA polymerase type-B family catalytic domain. DNA-directed DNA polymerases elongate DNA by adding nucleotide triphosphate (dNTP) residues to the 5'-end of the growing chain of DNA. DNA-directed DNA polymerases are multifunctional with both synthetic (polymerase) and degradative modes (exonucleases) and play roles in the processes of DNA replication, repair, and recombination. DNA-dependent DNA polymerases can be classified in six main groups based upon their phylogenetic relationships with E. coli polymerase I (class A), E. coli polymerase II (class B), E. coli polymerase III (class C), euryarchaeota polymerase II (class D), human polymerase beta (class x), E. coli UmuC/DinB, and eukaryotic RAP 30/Xeroderma pigmentosum variant (class Y). Family B DNA polymerases include E. coli DNA polymerase II, some eubacterial phage DNA polymerases, nuclear replicative DNA polymerases (alpha, delta, epsilon, and zeta), and eukaryotic viral and plasmid-borne enzymes. DNA polymerase is made up of distinct domains and sub-domains. The polymerase domain of DNA polymerase type B (Pol domain) is responsible for the template-directed polymerization of dNTPs onto the growing primer strand of duplex DNA that is usually magnesium dependent. In general, the architecture of the Pol domain has been likened to a right hand with fingers, thumb, and palm sub-domains with a deep groove to accommodate the nucleic acid substrate. There are a few conserved motifs in the Pol domain of family B DNA polymerases. The conserved aspartic acid residues in the DTDS motifs of the palm sub-domain is crucial for binding to divalent metal ion and is suggested to be important for polymerase catalysis.
Pssm-ID: 99912 [Multi-domain] Cd Length: 323 Bit Score: 68.94 E-value: 1.49e-12
DNA polymerase type-B family catalytic domain. DNA-directed DNA polymerases elongate DNA by ...
313-492
1.49e-12
DNA polymerase type-B family catalytic domain. DNA-directed DNA polymerases elongate DNA by adding nucleotide triphosphate (dNTP) residues to the 5'-end of the growing chain of DNA. DNA-directed DNA polymerases are multifunctional with both synthetic (polymerase) and degradative modes (exonucleases) and play roles in the processes of DNA replication, repair, and recombination. DNA-dependent DNA polymerases can be classified in six main groups based upon their phylogenetic relationships with E. coli polymerase I (class A), E. coli polymerase II (class B), E. coli polymerase III (class C), euryarchaeota polymerase II (class D), human polymerase beta (class x), E. coli UmuC/DinB, and eukaryotic RAP 30/Xeroderma pigmentosum variant (class Y). Family B DNA polymerases include E. coli DNA polymerase II, some eubacterial phage DNA polymerases, nuclear replicative DNA polymerases (alpha, delta, epsilon, and zeta), and eukaryotic viral and plasmid-borne enzymes. DNA polymerase is made up of distinct domains and sub-domains. The polymerase domain of DNA polymerase type B (Pol domain) is responsible for the template-directed polymerization of dNTPs onto the growing primer strand of duplex DNA that is usually magnesium dependent. In general, the architecture of the Pol domain has been likened to a right hand with fingers, thumb, and palm sub-domains with a deep groove to accommodate the nucleic acid substrate. There are a few conserved motifs in the Pol domain of family B DNA polymerases. The conserved aspartic acid residues in the DTDS motifs of the palm sub-domain is crucial for binding to divalent metal ion and is suggested to be important for polymerase catalysis.
Pssm-ID: 99912 [Multi-domain] Cd Length: 323 Bit Score: 68.94 E-value: 1.49e-12
DNA polymerase type-II B subfamily catalytic domain. Bacteria contain five DNA polymerases (I, ...
307-479
4.94e-11
DNA polymerase type-II B subfamily catalytic domain. Bacteria contain five DNA polymerases (I, II, III, IV and V). DNA polymerase II (Pol II) is a prototype for the B-family of polymerases. The role of Pol II in a variety of cellular activities, such as repair of DNA damaged by UV irradiation or oxidation has been proved by genetic studies. DNA polymerase III is the main enzyme responsible for replication of the bacterial chromosome; however, In vivo studies have also shown that Pol II is able to participate in chromosomal DNA replication with larger role in lagging-strand replication.
Pssm-ID: 99921 Cd Length: 347 Bit Score: 64.43 E-value: 4.94e-11
DNA polymerase type-B B3 subfamily catalytic domain. Archaeal proteins that are involved in ...
313-478
1.98e-09
DNA polymerase type-B B3 subfamily catalytic domain. Archaeal proteins that are involved in DNA replication are similar to those from eukaryotes. Some members of the archaea also possess multiple family B DNA polymerases (B1, B2 and B3). So far there is no specific function(s) has been assigned for different members of the archaea type B DNA polymerases. Phylogenetic analyses of eubacterial, archaeal, and eukaryotic family B DNA polymerases are support independent gene duplications during the evolution of archaeal and eukaryotic family B DNA polymerases. Structural comparison of the thermostable DNA polymerase type B to its mesostable homolog suggests several adaptations to high temperature such as shorter loops, disulfide bridges, and increasing electrostatic interaction at subdomain interfaces.
Pssm-ID: 99919 Cd Length: 371 Bit Score: 59.64 E-value: 1.98e-09
DNA polymerase type-B B1 subfamily catalytic domain. Archaeal proteins that are involved in ...
313-478
1.24e-07
DNA polymerase type-B B1 subfamily catalytic domain. Archaeal proteins that are involved in DNA replication are similar to those from eukaryotes. Some archaeal members also possess multiple family B DNA polymerases (B1, B2 and B3). So far there is no specific function(s) has been assigned for different members of the archaea type B DNA polymerases. Phylogenetic analyses of eubacterial, archaeal, and eukaryotic family B DNA polymerases are support independent gene duplications during the evolution of archaeal and eukaryotic family B DNA polymerases.
Pssm-ID: 99913 Cd Length: 372 Bit Score: 54.28 E-value: 1.24e-07
DNA polymerase type-B B2 subfamily catalytic domain. Archaeal proteins that are involved in ...
315-478
2.50e-05
DNA polymerase type-B B2 subfamily catalytic domain. Archaeal proteins that are involved in DNA replication are similar to those from eukaryotes. Some archaeal members also possess multiple family B DNA polymerases (B1, B2 and B3). So far there is no specific function(s) has been assigned for different members of the archaea type B DNA polymerases. Phylogenetic analyses of eubacterial, archaeal, and eukaryotic family B DNA polymerases are support independent gene duplications during the evolution of archaeal and eukaryotic family B DNA polymerases.
Pssm-ID: 99914 Cd Length: 352 Bit Score: 46.95 E-value: 2.50e-05
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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