MHC Class I Polypeptide-Related Sequence A

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

**Definition:** MHC class I polypeptide-related sequence A (383 aa, ~43 kDa) is encoded by the human MICA gene. This protein plays a role in the negative regulation of natural killer cells.

**Synonyms:** - MIC-A - MICA - Stress Inducible Class I Homolog