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DNA polymerase III subunit alpha, C-terminal domain
Bacterial DNA polymerase III alpha subunit finger domain
Helix-hairpin-helix motif
The HHH domain is a short DNA-binding domain [1]. [1]. 8692686. The helix-hairpin-helix DNA-binding motif: a structural basis. for non-sequence-specific recognition of DNA.. Doherty AJ, Serpell LC, Ponting CP;. Nucleic Acids Res 1996;24:2488-2497. (from Pfam)
Bacterial DNA polymerase III alpha NTPase domain
PHP domain-containing protein
The PHP (Polymerase and Histidinol Phosphatase) domain is a putative phosphoesterase domain. [1]. 9685491. Phosphoesterase domains associated with DNA polymerases of. diverse origins.. Aravind L, Koonin EV;. Nucleic Acids Res 1998;26:3746-3752. (from Pfam)
OB-fold nucleic acid binding domain-containing protein
This family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse the addition of an amino acid to the appropriate tRNA molecule EC:6.1.1.-. This family also includes part of RecG helicase involved in DNA repair. Replication factor A is a hetero-trimeric complex, that contains a subunit in this family [2,3]. This domain is also found at the C-terminus of bacterial DNA polymerase III alpha chain. [1]. 2047877. Class II aminoacyl transfer RNA synthetases: crystal structure. of yeast aspartyl-tRNA synthetase complexed with tRNA(Asp).. Ruff M, Krishnaswamy S, Boeglin M, Poterszman A, Mitschler A,. Podjarny A, Rees B, Thierry JC, Moras D;. Science 1991;252:1682-1689.. [2]. 7760808. Rpa4, a homolog of the 34-kilodalton subunit of the replication. protein A complex.. Keshav KF, Chen C, Dutta A;. Mol Cell Biol 1995;15:3119-3128.. [3]. 8990123. Structure of the single-stranded-DNA-binding domain of. replication protein A bound to DNA.. Bochkarev A, Pfuetzner RA, Edwards AM, Frappier L;. Nature 1997;385:176-181.. [4]. 10829230. Protein fold recognition using sequence profiles and its. application in structural genomics.. Koonin EV, Wolf YI, Aravind L;. Adv Protein Chem 2000;54:245-275. (from Pfam)
DNA polymerase III subunit alpha
DNA polymerase III alpha subunit is one of the three subunits that make up the catalytic core that contains the polymerase active site
Catalyzes DNA-template-directed extension of the 3'- end of a DNA strand by one nucleotide at a time; main replicative polymerase
All proteins in this family for which functions are known are DNA polymerases. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University).
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