M5ACC3 · M5ACC3_LEVBR

Function

function

Poorly processive, error-prone DNA polymerase involved in untargeted mutagenesis. Copies undamaged DNA at stalled replication forks, which arise in vivo from mismatched or misaligned primer ends. These misaligned primers can be extended by PolIV. Exhibits no 3'-5' exonuclease (proofreading) activity. May be involved in translesional synthesis, in conjunction with the beta clamp from PolIII.

Catalytic activity

Cofactor

Mg2+ (UniProtKB | Rhea| CHEBI:18420 )

Note: Binds 2 magnesium ions per subunit.

Features

Showing features for binding site, site, active site.

137350100150200250300350
Type
IDPosition(s)Description
Binding site18Mg2+ (UniProtKB | ChEBI)
Site23Substrate discrimination
Binding site116Mg2+ (UniProtKB | ChEBI)
Active site117

GO annotations

AspectTerm
Cellular Componentcytosol
Molecular Functiondamaged DNA binding
Molecular FunctionDNA-directed DNA polymerase activity
Molecular Functionmagnesium ion binding
Biological ProcessDNA-templated DNA replication
Biological Processerror-prone translesion synthesis
Biological ProcessSOS response

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    DNA polymerase IV
  • EC number
  • Short names
    Pol IV

Gene names

    • Name
      dinB
    • ORF names
      LVISKB_0843

Organism names

Accessions

  • Primary accession
    M5ACC3

Proteomes

Subcellular Location

Keywords

Interaction

Subunit

Monomer.

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain14-198UmuC

Sequence similarities

Belongs to the DNA polymerase type-Y family.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    373
  • Mass (Da)
    42,321
  • Last updated
    2013-05-29 v1
  • Checksum
    02426EBA0B0E4133
MVTLIPAQFTQRKIIHVDMDAFYASIEERDHPAFKQHPLIIAQDPRKTGGRGVVATANYAARQLGVHSAMNANEALKLAPQAIFQPPNFPLYRQISDQIHEIFHEYTDKIEPVAFDEAYLDVTENKHHLHSAVQVAHEIQVEIFEKTHLTCSTGISYSKFLAKEASDFRKPVGVSVILPEDAHDFLMALPIERFRGVGKKTVPKMHELGIHTGADLYHWSELALIHEFGKFGYVLYQRVRGIDERPVAYQRERKSIGKERTYGPPLTTLGEVENQLQRLAEMVAATVQEKQRHGKTLVLKLRTSAFKTLTKRYTQADFIANDAQTYYDLALDLYQSVAGENEQVRLLGITITGLAAQTFENVRLPLFDSDRLN

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
AP012167
EMBL· GenBank· DDBJ
BAN06478.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

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