这个基因编码一种多聚（a）结合蛋白。蛋白质在细胞核和细胞质之间穿梭，通过rna识别基序与真核信使rna的3'聚（a）尾结合。该蛋白与poly（A）的结合促进了核糖体的募集和翻译起始；poly（A）缩短也是mRNA衰变的第一步该基因是一个小基因家族的一部分，包括三个蛋白质编码基因和几个假基因
This gene encodes a poly(A) binding protein. The protein shuttles between the nucleus and cytoplasm and binds to the 3' poly(A) tail of eukaryotic messenger RNAs via RNA-recognition motifs. The binding of this protein to poly(A) promotes ribosome recruitment and translation initiation; it is also required for poly(A) shortening which is the first step in mRNA decay. The gene is part of a small gene family including three protein-coding genes and several pseudogenes.[provided by RefSeq, Aug 2010]