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- Table of Contents
Facts about Polyadenylate-binding protein 2.
Increases the affinity of poly(A) polymerase for RNA (By similarity). Is also present at various stages of mRNA metabolism including nucleocytoplasmic trafficking and nonsense- mediated decay (NMD) of mRNA.
Human | |
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Gene Name: | PABPN1 |
Uniprot: | Q86U42 |
Entrez: | 8106 |
Belongs to: |
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No superfamily |
Nuclear poly(A)-binding protein 1; OPMD; PAB2poly(A) binding protein II; PABII; PABP-2; PABP2polyadenylate-binding protein 2; poly(A) binding protein 2; poly(A) binding protein, nuclear 1; Poly(A)-binding protein 2; Poly(A)-binding protein II; poly(A)-binding protein, nuclear 1; Polyadenylate-binding nuclear protein 1
Mass (kDA):
32.749 kDA
Human | |
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Location: | 14q11.2 |
Sequence: | 14; NC_000014.9 (23320188..23326185) |
Ubiquitous.
Nucleus. Cytoplasm. Nucleus speckle. Localized in cytoplasmic mRNP granules containing untranslated mRNAs. Shuttles between the nucleus and the cytoplasm but predominantly found in the nucleus (PubMed:10688363). Its nuclear import may involve the nucleocytoplasmic transport receptor transportin and a RAN-GTP-sensitive import mechanism (By similarity). Is exported to the cytoplasm by a carrier-mediated pathway that is independent of mRNA traffic. Colocalizes with SKIP and poly(A) RNA in nuclear speckles (By similarity). Intranuclear filamentous inclusions or 'aggregates' are detected in the myo
PMID: 9462747 by Brais B., et al. Short GCG expansions in the PABP2 gene cause oculopharyngeal muscular dystrophy.
PMID: 10205180 by Chen Z., et al. Influenza A virus NS1 protein targets poly(A)-binding protein II of the cellular 3'-end processing machinery.