Anti-RAY antibodies enable researchers to detect and measure the RAY antigen in biological samples. This target is a reported synonym of the SH3YL1 gene, which encodes SH3 and SYLF domain containing 1. The human version of RAY has a canonical amino acid length of 342 residues and a protein mass of 37.1 kilodaltons, although 5 isoforms have been identified. It is reported to be widely expressed in many tissue types. RAY is a member of the SH3YL1 protein family.