Brag1, or IQ motif and Sec7 domain 2, is a human gene encoded by IQSEC2. It may also be known as: IQ motif and SEC7 domain-containing protein 2; BRAG1; MRX1. The encoded protein has an amino acid length of 1478 and a mass of 161.7 kDa. Other isoforms may exist. Brag1 is a member of the BRAG family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog.