HNRNPA1

This gene belongs to the A/B 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 two repeats of quasi-RRM domains that bind to RNAs. It is one of the most abundant core proteins of hnRNP complexes and it is localized to the nucleoplasm. This protein, along with other hnRNP proteins, is exported from the nucleus, probably bound to mRNA, and is immediately re-imported. Its M9 domain acts as both a nuclear localization and nuclear export signal. The encoded protein is involved in the packaging of pre-mRNA into hnRNP particles, transport of poly A+ mRNA from the nucleus to the cytoplasm, and may modulate splice site selection. It is also thought have a primary role in the formation of specific myometrial protein species in parturition. Multiple alternatively spliced transcript variants have been found for this gene but only two transcripts are fully described. These variants have multiple alternative transcription initiation sites and multiple polyA sites. [provided by RefSeq, Jul 2008]

Description

heterogeneous nuclear ribonucleoprotein A1

Protein family

Disease related genes, Mapped to UniProt SWISS-PROT, Plasma proteins, Predicted intracellular proteins, Protein evidence (Ezkurdia et al 2014), Protein evidence (Kim et al 2014)

Chromosome

12:q13.13 (54280193 - 54287088)

Ensembl ID

ENSG00000135486  (ver. 84.38)

Orthologs

Mouse Hnrnpa1: ENSMUSG00000046434

UniProt

P09651

neXtProt

NX_P09651

Human splice variants
Mouse splice variants