Provided below are ELISA kits targeting G protein signaling modulator 1, a human protein encoded by GPSM1. This protein is 675 amino acids long, with a mass of 74.5 kDa, and is a member of the GPSM family. 4 isoforms have been identified. This is reported to be a cytoplasmic and membrane protein. Other alias names for this protein include: G-protein signalling modulator 1 (AGS3-like C. elegans), activator of G-protein signaling 3, and AGS3.