Involved with pre-mRNA processing. Forms complexes (ribonucleosomes) with at least 20 other different hnRNP and heterogeneous nuclear RNA in the nucleous.
Specificity
Natural and recombinant Mouse Heterogeneous nuclear ribonucleoproteins A2/B1
Subcellular Location
Nucleus nucleoplasm Cytoplasm Localized in cytoplasmic mRNP granules containing untranslated mRNAs (By similarity). Component of ribonucleosomes. Predominantly nucleoplasmic, however isoform 2 is also found in the cytoplasm of cells in some tissues. Not found in the nucleolus.