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POLG2 polymerase (DNA directed), gamma 2, accessory subunit [ Homo sapiens (human) ]

Gene ID: 11232, updated on 19-Jul-2014
Official Symbol
POLG2provided by HGNC
Official Full Name
polymerase (DNA directed), gamma 2, accessory subunitprovided by HGNC
Primary source
HGNC:9180
See related
Ensembl:ENSG00000256525; HPRD:09228; MIM:604983; Vega:OTTHUMG00000178899
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
HP55; POLB; PEOA4; POLGB; MTPOLB; POLG-BETA
Summary
This gene encodes the processivity subunit of the mitochondrial DNA polymerase gamma. The encoded protein forms a heterotrimer containing one catalytic subunit and two processivity subunits. This protein enhances DNA binding and promotes processive DNA synthesis. Mutations in this gene result in autosomal dominant progressive external ophthalmoplegia with mitochondrial DNA deletions.[provided by RefSeq, Sep 2009]
See POLG2 in Epigenomics, MapViewer
Location:
17q
Exon count:
10
Annotation release Status Assembly Chr Location
106 current GRCh38 (GCF_000001405.26) 17 NC_000017.11 (64477785..64497066, complement)
105 previous assembly GRCh37.p13 (GCF_000001405.25) 17 NC_000017.10 (62473902..62493184, complement)

Chromosome 17 - NC_000017.11Genomic Context describing neighboring genes Neighboring gene ribosomal protein L31 pseudogene 57 Neighboring gene platelet/endothelial cell adhesion molecule 1 Neighboring gene mast cell immunoglobulin-like receptor 1 Neighboring gene ATP synthase, H+ transporting, mitochondrial Fo complex, subunit F2 pseudogene 4 Neighboring gene microRNA 3064 Neighboring gene microRNA 5047 Neighboring gene DEAD (Asp-Glu-Ala-Asp) box helicase 5

GeneRIFs: Gene References Into FunctionsWhat's a GeneRIF?

Products Interactant Other Gene Complex Source Pubs Description

Markers

Homology

Gene Ontology Provided by GOA

Function Evidence Code Pubs
DNA binding IEA
Inferred from Electronic Annotation
more info
 
DNA-directed DNA polymerase activity IEA
Inferred from Electronic Annotation
more info
 
identical protein binding IEA
Inferred from Electronic Annotation
more info
 
protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
Process Evidence Code Pubs
DNA repair NAS
Non-traceable Author Statement
more info
PubMed 
DNA replication NAS
Non-traceable Author Statement
more info
PubMed 
DNA-dependent DNA replication TAS
Traceable Author Statement
more info
PubMed 
Component Evidence Code Pubs
extracellular vesicular exosome IDA
Inferred from Direct Assay
more info
 
mitochondrial chromosome TAS
Traceable Author Statement
more info
PubMed 
mitochondrial nucleoid IDA
Inferred from Direct Assay
more info
PubMed 
Preferred Names
DNA polymerase subunit gamma-2, mitochondrial
Names
DNA polymerase subunit gamma-2, mitochondrial
p55
mitochondrial DNA polymerase subunit gamma-2
DNA polymerase gamma accessory 55 kDa subunit
mitochondrial DNA polymerase accessory subunit
mitochondrial DNA polymerase, accessory subunit
NP_009146.2

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_013029.1 

    Range
    5001..24283
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_007215.3NP_009146.2  DNA polymerase subunit gamma-2, mitochondrial

    See proteins identical to NP_009146.2

    Status: REVIEWED

    Source sequence(s)
    BC000913, BC009194, BI826587
    Consensus CDS
    CCDS32706.1
    UniProtKB/TrEMBL
    E5KS15
    UniProtKB/Swiss-Prot
    Q9UHN1
    Related
    ENSP00000442563, OTTHUMP00000260267, ENST00000539111, OTTHUMT00000443820
    Conserved Domains (3) summary
    PRK04173
    Location:99479
    Blast Score: 283
    PRK04173; glycyl-tRNA synthetase; Provisional
    cd02426
    Location:354481
    Blast Score: 603
    Pol_gamma_b_Cterm; C-terminal domain of mitochondrial DNA polymerase gamma B subunit, which is required for processivity. Polymerase gamma replicates and repairs mitochondrial DNA. The c-terminal domain of its B subunit is strikingly similar to the anticodon-binding domain ...
    cl00268
    Location:69350
    Blast Score: 611
    class_II_aaRS-like_core; Class II tRNA amino-acyl synthetase-like catalytic core domain. Class II amino acyl-tRNA synthetases (aaRS) share a common fold and generally attach an amino acid to the 3' OH of ribose of the appropriate tRNA. PheRS is an exception in that it ...

RefSeqs of Annotated Genomes: Homo sapiens Annotation Release 106

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38 Primary Assembly

Genomic

  1. NC_000017.11 

    Range
    64477785..64497066
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. XM_006721651.1XP_006721714.1  

    Conserved Domains (1) summary
    cl00268
    Location:69318
    Blast Score: 534
    class_II_aaRS-like_core; Class II tRNA amino-acyl synthetase-like catalytic core domain. Class II amino acyl-tRNA synthetases (aaRS) share a common fold and generally attach an amino acid to the 3' OH of ribose of the appropriate tRNA. PheRS is an exception in that it ...

RNA

  1. XR_243630.1 RNA Sequence

Alternate HuRef

Genomic

  1. AC_000149.1 

    Range
    57923123..57942249
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate CHM1_1.1

Genomic

  1. NC_018928.2 

    Range
    62537826..62557108
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)