T-Lymphocyte Surface Antigen Ly-9

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** T-lymphocyte surface antigen Ly-9 (655 aa, ~72 kDa) is encoded by the human LY9 gene. This protein is involved in the positive regulation of helper T-cell Th17 differentiation.

**Synonyms:** - CD229 - CD229 Antigen - Cell Surface Molecule Ly-9 - LY9 - Lymphocyte Antigen 9 - SLAM Family Member 3 - SLAMF3 - Signaling Lymphocytic Activation Molecule 3 - T-lymphocyte surface antigen Ly-9 - cluster of differentiation 229