MeSH definition : A non-receptor tyrosine kinase that is essential for the development, maturation,
and signaling of B-LYMPHOCYTES. It contains an N-terminal zinc finger motif and localizes
primarily to the PLASMA MEMBRANE and nucleus of B-lymphocytes. Mutations in the gene
that encode this kinase are associated with X-LINKED AGAMMAGLOBULINEMIA.;
A non-receptor tyrosine kinase that is essential for the development, maturation,
and signaling of B-LYMPHOCYTES. It contains an N-terminal zinc finger motif and localizes
primarily to the PLASMA MEMBRANE and nucleus of B-lymphocytes. Mutations in the gene
that encode this kinase are associated with X-LINKED AGAMMAGLOBULINEMIA.