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PTBP1, polypyrimidine tract binding protein 1

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PTBP1, polypyrimidine tract binding protein 1

  • This gene belongs to the subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). The hnRNPs are RNA-binding proteins and they complex with heterogeneous nuclear RNA (hnRNA). These proteins are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene has four repeats of quasi-RNA recognition motif (RRM) domains that bind RNAs. This protein binds to the intronic polypyrimidine tracts that requires pre-mRNA splicing and acts via the protein degradation ubiquitin-proteasome pathway. It may also promote the binding of U2 snRNP to pre-mRNAs. This protein is localized in the nucleoplasm and it is also detected in the perinucleolar structure. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

  • Gene Synonyms (polypyrimidine tract-binding protein 1, 57 kDa RNA-binding protein PPTB-1, RNA-binding protein, heterogeneous nuclear ribonucleoprotein I, heterogeneous nuclear ribonucleoprotein polypeptide I, hnRNP I, polypyrimidine tract binding protein (heterogeneous nuclear ribonucleoprotein I), HNRNP-I, HNRNPI, HNRPI, PTB, PTB-1, PTB-T, PTB2, PTB3, PTB4, pPTB,)
  • NCBI Gene ID: 5725
  • Species: Homo sapiens (Human)
  • UNIPROT ID#>>P26599
  • View the NCBI Database for this Gene »

The information on this page was collected from publicly accessible databases, and is periodically updated. Promega makes no claims to accuracy, or ownership of these genes.

Gene products are often involved in multiple pathways and networks within a living cell. Learn more about other interacting partners.

polypyrimidine tract binding protein 1 interacts with:

The information on this page was collected from publicly accessible databases, and is periodically updated. Promega makes no claims to accuracy, or ownership of these genes.

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The information on this page was collected from publicly accessible databases, and is periodically updated. Promega makes no claims to accuracy, or ownership of these genes.

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