MHC Class I Polypeptide-Related Sequence B

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

**Definition:** MHC class I polypeptide-related sequence B (383 aa, ~43 kDa) is encoded by the human MICB gene. This protein plays a role in activation of cytolysis by natural killer cells, CD8 alpha-beta T cells, and gamma-delta T cells.

**Synonyms:** - MIC-B