Crystal structure of Bruton's tyrosine kinase domain suggests a novel pathway for activation and provides insights into the molecular basis of X-linked agammaglobulinemia.Mao, C., Zhou, M., Uckun, F.M.
(2001) J Biol Chem 276: 41435-41443
- PubMed: 11527964
- DOI: https://doi.org/10.1074/jbc.M104828200
- Primary Citation of Related Structures:
- PubMed Abstract:
Bruton's tyrosine kinase is intimately involved in signal transduction pathways regulating survival, activation, proliferation, and differentiation of B lineage lymphoid cells. Mutations in the human btk gene are the cause of X-linked agammaglobulinemia, a male immune deficiency disorder characterized by a lack of mature, immunoglobulin-producing B lymphocytes. We have determined the x-ray crystal structure of the Bruton's tyrosine kinase kinase domain in its unphosphorylated state to a 2.1 A resolution. A comparison with the structures of other tyrosine kinases and a possible mechanism of activation unique to Bruton's tyrosine kinase are provided.
Department of Structural Biology, Parker Hughes Cancer Center, St. Paul, Minnesota 55113, USA. email@example.com