BRINP3 Gene: Function, Expression, and Disease Associations

BRINP3 (BMP/Retinoic Acid Inducible Neural Specific 3) is a protein-coding gene located on chromosome 1q31.1. It encodes a member of the BRINP family, which is characterized by a conserved N-terminal domain and is involved in neural development, cell cycle regulation, and apoptosis. The gene is induced by BMP and retinoic acid signaling and is expressed predominantly in the brain. BRINP3 has been implicated in various cancers, including colorectal and lung cancer, where it may act as a tumor suppressor or oncogene depending on context. Mutations and altered expression of BRINP3 are associated with neurological disorders and cancer progression.

Tissue Expression

Cell Line Expression

Hotspot Mutations

Mutation functional classification

• BMP signaling pathway

• Retinoic acid signaling pathway

• Cell cycle regulation

The BRINP3 protein is a 746-amino acid polypeptide with a molecular weight of approximately 83 kDa. It contains a conserved N-terminal domain (BRINP domain) and is localized to the nucleus and cytoplasm. The protein is involved in regulating cell cycle progression, apoptosis, and neural differentiation. It interacts with other proteins to modulate BMP and retinoic acid signaling, which are critical for development and tissue homeostasis. Structural predictions suggest multiple phosphorylation sites, indicating potential regulation by kinases.