Title : Dynamic interaction of CD2 with the GYF and the SH3 domain of compartmentalized effector molecules.

Pub. Date : 2002 Nov 15

PMID : 12426371






2 Functional Relationships(s)
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1 NMR analysis shows that the Fyn but not the Lck tyrosine kinase SH3 domain competes with CD2BP2 GYF-domain binding to the same CD2 proline-rich sequence in vitro. Proline FYN proto-oncogene, Src family tyrosine kinase Homo sapiens
2 To test the in vivo significance of this competition, we used co-immunoprecipitation experiments and found that CD2BP2 is the ligand of the membrane-proximal proline-rich tandem repeat of CD2 in detergent-soluble membrane compartments, but is replaced by Fyn SH3 after CD2 is translocated into lipid rafts upon CD2 ectodomain clustering. Proline FYN proto-oncogene, Src family tyrosine kinase Homo sapiens