Nucleolin is a protein that in humans is encoded by the NCL gene.
The human NCL gene is located on chromosome 2 and consists of 14 exons with 13 introns and spans approximately 11kb. The intron 11 of the NCL gene encodes a small nucleolar RNA, termed U20.
Nucleolin (NCL), a eukaryotic nucleolar phosphoprotein, is involved in the synthesis and maturation of ribosomes. The protein is located mainly in dense fibrillar regions of the nucleolus.