TYROSINE PHOSPHATASE;
SIGNAL TRANSDUCTION;
CD45;
T-CELL RECEPTOR;
TYROSINE KINASE;
D O I:
10.1096/fasebj.7.5.8462784
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
CD45, a family of hematopoietic cell specific surface antigens, is the best characterized protein tyrosine phosphatase described to date. Considerable evidence from a number of laboratories suggests that surface expression of this molecule is required for normal signaling events to occur in T lymphocytes, B lymphocytes, and natural killer cells. In this paper, data supporting this contention are reviewed and a model proposing how CD45 may exert its regulatory function on signal transduction via the T cell antigen receptor is presented.