NM_001289614
NM_001289615
NM_175938
NP_853509
NP_001184166.1
NP_008926.2
NP_001276543
NP_001276544
NP_787952
Butyrophilin subfamily 2 member A2 is a protein that in humans is encoded by the BTN2A2 gene.
Butyrophilin is the major protein associated with fat droplets in the milk. This gene is a member of the BTN2 subfamily of genes, which encode proteins belonging to the butyrophilin protein family. The gene is located in a cluster on chromosome 6, consisting of seven genes belonging to the expanding B7/butyrophilin-like group, a subset of the immunoglobulin gene superfamily. The encoded protein is a type 1 receptor glycoprotein involved in lipid, fatty-acid and sterol metabolism. Several alternatively spliced transcript variants of this gene have been described, but the full-length nature of some variants has not been determined.