LCK-Associated Immunodeficiency

**Semantic type:** Disease or Syndrome

**Definition:** An extremely rare autosomal recessive condition caused by mutation(s) in the LCK gene, encoding tyrosine-protein kinase Lck. It is characterized by T-cell dysfunction.

**Synonyms:** - IMD22 - Immunodeficiency 22 - LCK Deficiency - LCK Deficiency (T Lymphocyte-specific protein TK)