Heterogeneous nuclear ribonucleoproteins A2/B1 (HNRNPA2B1)

Heterogeneous nuclear ribonucleoprotein (hnRNP) that associates with nascent pre-mRNAs, packaging them into hnRNP particles. The hnRNP particle arrangement on nascent hnRNA is non- arbitrary and sequence-dependent and functions to float and stabilize the transcripts and minimize tangling and knotting.

Packaging plays a role in a variety of processes such as transcription, pre-mRNA processing, RNA nuclear export, subcellular location, mRNA translation and stability of mature mRNAs (PubMed:19099192). Types hnRNP particles with at least 20 other different hnRNP and heterogeneous nuclear RNA from the nucleus.