Regulation of the calcium/NF-AT T cell activation pathway by the D2 domain of CD45.


CD45 contains tandem repeated protein tyrosine phosphatase (PTP) domains and is essential for the initiation of the earliest activation events resulting from Ag ligation of the TCR. The second PTP domain (D2) contains four CK2 phosphorylation sites in a unique 19-aa insert, which are targets of CK2 phosphorylation. This study was designed to evaluate the… (More)


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