FEATURES

FAMILY

DESCRIPTION

Also known as PAN2_HUMAN, PAN2, KIAA0710, USP52. Catalytic subunit of the poly(A)-nuclease (PAN) deadenylation complex, one of two cytoplasmic mRNA deadenylases involved in general and miRNA-mediated mRNA turnover. PAN specifically shortens poly(A) tails of RNA and the activity is stimulated by poly(A)-binding protein (PABP). PAN deadenylation is followed by rapid degradation of the shortened mRNA tails by the CCR4-NOT complex. Deadenylated mRNAs are then degraded by two alternative mechanisms, namely exosome-mediated 3'-5' exonucleolytic degradation, or deadenlyation-dependent mRNA decaping and subsequent 5'-3' exonucleolytic degradation by XRN1. Also acts as an important regulator of the HIF1A-mediated hypoxic response. Required for HIF1A mRNA stability independent of poly(A) tail length regulation. Forms a heterotrimer with an asymmetric homodimer of the regulatory subunit PAN3 to form the poly(A)-nuclease (PAN) deadenylation complex (PubMed:14583602, PubMed:23932717). Interacts with ZFP36 (By similarity).

EXTERNAL LINKS

PAN2

PAN2-PAN3 deadenylation complex catalytic subunit PAN2

PAN2

Molecular Synopsis