The product of this gene is a component of the nuclear cap-binding protein complex (CBC), which binds to the monomethylated 5' cap of nascent pre-mRNA in the nucleoplasm. The encoded protein has an RNP domain commonly found in RNA binding proteins, and contains the cap-binding activity. The CBC promotes pre-mRNA splicing, 3'-end processing, RNA nuclear export, and nonsense-mediated mRNA decay. Multiple transcript variants encoding different isoforms have been found for this gene.
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Protein Aliases: 20 kDa nuclear cap-binding protein; CBC2; CBP20; Cell proliferation-inducing gene 55 protein; NCBP 20 kDa subunit; NCBP interacting protein 1; NCBP-interacting protein 1; NIP1; nuclear cap binding protein subunit 2, 20kD; nuclear cap binding protein subunit 2, 20kDa; Nuclear cap-binding protein subunit 2
Gene Aliases: 20kDa; 5930413E18Rik; AA536802; AI843301; C79367; CBC2; CBP20; NCBP2; NIP1; PIG55