Tags: Protein.
Nuclear cap-binding protein complex is a RNA-binding protein which binds to the 5′ cap of pre-mRNA. The cap and nuclear cap-binding protein have many function in mRNA biogenesis including splicing 3′-end formation by stabilizing the interaction of the 3′-end processing machinery nuclear export and protection of the transcripts from nuclease degradation. When RNA is exported to the cytoplasm the nuclear cap-binding protein complex is replaced by cytoplasmic cap binding complex.
