Ready-to-use ELISA kits are available for the detection of Brain-Specific Angiogenesis Inhibitor 1, an alias of the protein, adhesion G protein-coupled receptor B1. The official gene symbol is ADGRB1. The protein, with a mass of 173.5 kDa and length of 1584 residues, is reported to be membrane-associated and secreted. It is a member of the G-protein coupled receptor 2 family, LN-TM7 subfamily and may be known by other names, including: GDAIF, BAI1, and brain-specific angiogenesis inhibitor 1.