Neuroblastoma breakpoint family, member 15, also known as NBPF15, is a protein which in humans is encoded by the NBPF15 gene. The gene is 18762 bp long, with mRNA that is 3837 bp long. The gene is located on chromosome 1q21.1. Its sub-cellular location is predicted to be in the nucleus and cytoplasm. It contains what is known as the NBPF repeat, which is a two-exon stretch of sequence that is characteristic of all 21 members of the NBPF gene family. The repeat is considered the ancestral exons, and the NBPF family has been linked to primate evolution.