DNA polymerase I

NameDNA polymerase I
Synonyms
  • 2.7.7.7
  • POL I
  • resA
Gene NamepolA
OrganismEscherichia coli (strain K12)
Amino acid sequence
>lcl|BSEQ0010350|DNA polymerase I
MVQIPQNPLILVDGSSYLYRAYHAFPPLTNSAGEPTGAMYGVLNMLRSLIMQYKPTHAAV
VFDAKGKTFRDELFEHYKSHRPPMPDDLRAQIEPLHAMVKAMGLPLLAVSGVEADDVIGT
LAREAEKAGRPVLISTGDKDMAQLVTPNITLINTMTNTILGPEEVVNKYGVPPELIIDFL
ALMGDSSDNIPGVPGVGEKTAQALLQGLGGLDTLYAEPEKIAGLSFRGAKTMAAKLEQNK
EVAYLSYQLATIKTDVELELTCEQLEVQQPAAEELLGLFKKYEFKRWTADVEAGKWLQAK
GAKPAAKPQETSVADEAPEVTATVISYDNYVTILDEETLKAWIAKLEKAPVFAFDTETDS
LDNISANLVGLSFAIEPGVAAYIPVAHDYLDAPDQISRERALELLKPLLEDEKALKVGQN
LKYDRGILANYGIELRGIAFDTMLESYILNSVAGRHDMDSLAERWLKHKTITFEEIAGKG
KNQLTFNQIALEEAGRYAAEDADVTLQLHLKMWPDLQKHKGPLNVFENIEMPLVPVLSRI
ERNGVKIDPKVLHNHSEELTLRLAELEKKAHEIAGEEFNLSSTKQLQTILFEKQGIKPLK
KTPGGAPSTSEEVLEELALDYPLPKVILEYRGLAKLKSTYTDKLPLMINPKTGRVHTSYH
QAVTATGRLSSTDPNLQNIPVRNEEGRRIRQAFIAPEDYVIVSADYSQIELRIMAHLSRD
KGLLTAFAEGKDIHRATAAEVFGLPLETVTSEQRRSAKAINFGLIYGMSAFGLARQLNIP
RKEAQKYMDLYFERYPGVLEYMERTRAQAKEQGYVETLDGRRLYLPDIKSSNGARRAAAE
RAAINAPMQGTAADIIKRAMIAVDAWLQAEQPRVRMIMQVHDELVFEVHKDDVDAVAKQI
HQLMENCTRLDVPLLVEVGSGENWDQAH
Number of residuesNone
Molecular Weight103117.145
Theoretical pI5.27
GO Classification
Functions
  • DNA binding
  • DNA-directed DNA polymerase activity
  • 3'-5' exonuclease activity
  • 5'-3' exonuclease activity
Processes
  • nucleic acid phosphodiester bond hydrolysis
  • DNA replication
  • DNA-dependent DNA replication
  • DNA repair
  • base-excision repair
  • DNA biosynthetic process
Components
  • cytoplasm
  • cytosol
General FunctionDna-directed dna polymerase activity
Specific FunctionIn addition to polymerase activity, this DNA polymerase exhibits 3' to 5' and 5' to 3' exonuclease activity. It is able to utilize nicked circular duplex DNA as a template and can unwind the parental DNA strand from its template.
Transmembrane Regions
GenBank Protein ID
UniProtKB IDP00582
UniProtKB Entry Name
Cellular LocationCytoplasmic
Gene sequence
>lcl|BSEQ0010351|DNA polymerase I (polA)
ATGGTTCAGATCCCCCAAAATCCACTTATCCTTGTAGATGGTTCATCTTATCTTTATCGC
GCATATCACGCGTTTCCCCCGCTGACTAACAGCGCAGGCGAGCCGACCGGTGCGATGTAT
GGTGTCCTCAACATGCTGCGCAGTCTGATCATGCAATATAAACCGACGCATGCAGCGGTG
GTCTTTGACGCCAAGGGAAAAACCTTTCGTGATGAACTGTTTGAACATTACAAATCACAT
CGCCCGCCAATGCCGGACGATCTGCGTGCACAAATCGAACCCTTGCACGCGATGGTTAAA
GCGATGGGACTGCCGCTGCTGGCGGTTTCTGGCGTAGAAGCGGACGACGTTATCGGTACT
CTGGCGCGCGAAGCCGAAAAAGCCGGGCGTCCGGTGCTGATCAGCACTGGCGATAAAGAT
ATGGCGCAGCTGGTGACGCCAAATATTACGCTTATCAATACCATGACGAATACCATCCTC
GGACCGGAAGAGGTGGTGAATAAGTACGGCGTGCCGCCAGAACTGATCATCGATTTCCTG
GCGCTGATGGGTGACTCCTCTGATAACATTCCTGGCGTACCGGGCGTCGGTGAAAAAACC
GCGCAGGCATTGCTGCAAGGTCTTGGCGGACTGGATACGCTGTATGCCGAGCCAGAAAAA
ATTGCTGGGTTGAGCTTCCGTGGCGCGAAAACAATGGCAGCGAAGCTCGAGCAAAACAAA
GAAGTTGCTTATCTCTCATACCAGCTGGCGACGATTAAAACCGACGTTGAACTGGAGCTG
ACCTGTGAACAACTGGAAGTGCAGCAACCGGCAGCGGAAGAGTTGTTGGGGCTGTTCAAA
AAGTATGAGTTCAAACGCTGGACTGCTGATGTCGAAGCGGGCAAATGGTTACAGGCCAAA
GGGGCAAAACCAGCCGCGAAGCCACAGGAAACCAGTGTTGCAGACGAAGCACCAGAAGTG
ACGGCAACGGTGATTTCTTATGACAACTACGTCACCATCCTTGATGAAGAAACACTGAAA
GCGTGGATTGCGAAGCTGGAAAAAGCGCCGGTATTTGCATTTGATACCGAAACCGACAGC
CTTGATAACATCTCTGCTAACCTGGTCGGGCTTTCTTTTGCTATCGAGCCAGGCGTAGCG
GCATATATTCCGGTTGCTCATGATTATCTTGATGCGCCCGATCAAATCTCTCGCGAGCGT
GCACTCGAGTTGCTAAAACCGCTGCTGGAAGATGAAAAGGCGCTGAAGGTCGGGCAAAAC
CTGAAATACGATCGCGGTATTCTGGCGAACTACGGCATTGAACTGCGTGGGATTGCGTTT
GATACCATGCTGGAGTCCTACATTCTCAATAGCGTTGCCGGGCGTCACGATATGGACAGC
CTCGCGGAACGTTGGTTGAAGCACAAAACCATCACTTTTGAAGAGATTGCTGGTAAAGGC
AAAAATCAACTGACCTTTAACCAGATTGCCCTCGAAGAAGCCGGACGTTACGCCGCCGAA
GATGCAGATGTCACCTTGCAGTTGCATCTGAAAATGTGGCCGGATCTGCAAAAACACAAA
GGGCCGTTGAACGTCTTCGAGAATATCGAAATGCCGCTGGTGCCGGTGCTTTCACGCATT
GAACGTAACGGTGTGAAGATCGATCCGAAAGTGCTGCACAATCATTCTGAAGAGCTCACC
CTTCGTCTGGCTGAGCTGGAAAAGAAAGCGCATGAAATTGCAGGTGAGGAATTTAACCTT
TCTTCCACCAAGCAGTTACAAACCATTCTCTTTGAAAAACAGGGCATTAAACCGCTGAAG
AAAACGCCGGGTGGCGCGCCGTCAACGTCGGAAGAGGTACTGGAAGAACTGGCGCTGGAC
TATCCGTTGCCAAAAGTGATTCTGGAGTATCGTGGTCTGGCGAAGCTGAAATCGACCTAC
ACCGACAAGCTGCCGCTGATGATCAACCCGAAAACCGGGCGTGTGCATACCTCTTATCAC
CAGGCAGTAACTGCAACGGGACGTTTATCGTCAACCGATCCTAACCTGCAAAACATTCCG
GTGCGTAACGAAGAAGGTCGTCGTATCCGCCAGGCGTTTATTGCGCCAGAGGATTATGTG
ATTGTCTCAGCGGACTACTCGCAGATTGAACTGCGCATTATGGCGCATCTTTCGCGTGAC
AAAGGCTTGCTGACCGCATTCGCGGAAGGAAAAGATATCCACCGGGCAACGGCGGCAGAA
GTGTTTGGTTTGCCACTGGAAACCGTCACCAGCGAGCAACGCCGTAGCGCGAAAGCGATC
AACTTTGGTCTGATTTATGGCATGAGTGCTTTCGGTCTGGCGCGGCAATTGAACATTCCA
CGTAAAGAAGCGCAGAAGTACATGGACCTTTACTTCGAACGCTACCCTGGCGTGCTGGAG
TATATGGAACGCACCCGTGCTCAGGCGAAAGAGCAGGGCTACGTTGAAACGCTGGACGGA
CGCCGTCTGTATCTGCCGGATATCAAATCCAGCAATGGTGCTCGTCGTGCAGCGGCTGAA
CGTGCAGCCATTAACGCGCCAATGCAGGGAACCGCCGCCGACATTATCAAACGGGCGATG
ATTGCCGTTGATGCGTGGTTACAGGCTGAGCAACCGCGTGTACGTATGATCATGCAGGTA
CACGATGAACTGGTATTTGAAGTTCATAAAGATGATGTTGATGCCGTCGCGAAGCAGATT
CATCAACTGATGGAAAACTGTACCCGTCTGGATGTGCCGTTGCTGGTGGAAGTGGGGAGT
GGCGAAAACTGGGATCAGGCGCACTAA
GenBank Gene ID
GeneCard IDNone
GenAtlas ID
HGNC ID
Chromosome LocationNone
LocusNone
References
  1. Joyce CM, Kelley WS, Grindley ND: Nucleotide sequence of the Escherichia coli polA gene and primary structure of DNA polymerase I. J Biol Chem. 1982 Feb 25;257(4):1958-64. [6276402 ]
  2. Plunkett G 3rd, Burland V, Daniels DL, Blattner FR: Analysis of the Escherichia coli genome. III. DNA sequence of the region from 87.2 to 89.2 minutes. Nucleic Acids Res. 1993 Jul 25;21(15):3391-8. [8346018 ]
  3. Blattner FR, Plunkett G 3rd, Bloch CA, Perna NT, Burland V, Riley M, Collado-Vides J, Glasner JD, Rode CK, Mayhew GF, Gregor J, Davis NW, Kirkpatrick HA, Goeden MA, Rose DJ, Mau B, Shao Y: The complete genome sequence of Escherichia coli K-12. Science. 1997 Sep 5;277(5331):1453-62. [9278503 ]
  4. Hayashi K, Morooka N, Yamamoto Y, Fujita K, Isono K, Choi S, Ohtsubo E, Baba T, Wanner BL, Mori H, Horiuchi T: Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110. Mol Syst Biol. 2006;2:2006.0007. Epub 2006 Feb 21. [16738553 ]
  5. Joyce CM, Grindley ND: Identification of two genes immediately downstream from the polA gene of Escherichia coli. J Bacteriol. 1982 Dec;152(3):1211-9. [6183253 ]
  6. Kelley WS, Joyce CM: Genetic characterization of early amber mutations in the Escherichia coli polA gene and purification of the amber peptides. J Mol Biol. 1983 Mar 15;164(4):529-60. [6302278 ]
  7. Brown WE, Stump KH, Kelley WS: Escherichia coli DNA polymerase I. Sequence characterization and secondary structure prediction. J Biol Chem. 1982 Feb 25;257(4):1965-72. [7035456 ]
  8. VanBogelen RA, Abshire KZ, Moldover B, Olson ER, Neidhardt FC: Escherichia coli proteome analysis using the gene-protein database. Electrophoresis. 1997 Aug;18(8):1243-51. [9298644 ]
  9. Ollis DL, Brick P, Hamlin R, Xuong NG, Steitz TA: Structure of large fragment of Escherichia coli DNA polymerase I complexed with dTMP. Nature. 1985 Feb 28-Mar 6;313(6005):762-6. [3883192 ]
  10. Beese LS, Steitz TA: Structural basis for the 3'-5' exonuclease activity of Escherichia coli DNA polymerase I: a two metal ion mechanism. EMBO J. 1991 Jan;10(1):25-33. [1989886 ]
  11. Beese LS, Derbyshire V, Steitz TA: Structure of DNA polymerase I Klenow fragment bound to duplex DNA. Science. 1993 Apr 16;260(5106):352-5. [8469987 ]
  12. Beese LS, Friedman JM, Steitz TA: Crystal structures of the Klenow fragment of DNA polymerase I complexed with deoxynucleoside triphosphate and pyrophosphate. Biochemistry. 1993 Dec 28;32(51):14095-101. [8260491 ]
  13. Brautigam CA, Steitz TA: Structural principles for the inhibition of the 3'-5' exonuclease activity of Escherichia coli DNA polymerase I by phosphorothioates. J Mol Biol. 1998 Mar 27;277(2):363-77. [9514742 ]
  14. Brautigam CA, Sun S, Piccirilli JA, Steitz TA: Structures of normal single-stranded DNA and deoxyribo-3'-S-phosphorothiolates bound to the 3'-5' exonucleolytic active site of DNA polymerase I from Escherichia coli. Biochemistry. 1999 Jan 12;38(2):696-704. [9888810 ]
  15. Teplova M, Wallace ST, Tereshko V, Minasov G, Symons AM, Cook PD, Manoharan M, Egli M: Structural origins of the exonuclease resistance of a zwitterionic RNA. Proc Natl Acad Sci U S A. 1999 Dec 7;96(25):14240-5. [10588690 ]
  16. Mullen GP, Vaughn JB Jr, Mildvan AS: Sequential proton NMR resonance assignments, circular dichroism, and structural properties of a 50-residue substrate-binding peptide from DNA polymerase I. Arch Biochem Biophys. 1993 Feb 15;301(1):174-83. [8442659 ]

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