Title : Role of tyrosine phosphorylation in the regulation of cleavage secretion of angiotensin-converting enzyme.

Pub. Date : 2004 Sep 17

PMID : 15252021






4 Functional Relationships(s)
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1 Role of tyrosine phosphorylation in the regulation of cleavage secretion of angiotensin-converting enzyme. Tyrosine angiotensin I converting enzyme Homo sapiens
2 Strong enhancements of ACE cleavage secretion was observed upon enhancing protein Tyr phosphorylation by treating gACE- or sACE-expressing cells with pervanadate, an inhibitor of protein Tyr phosphatases. Tyrosine angiotensin I converting enzyme Homo sapiens
3 Secreted gACE, cell-bound mature gACE and its precursors were all Tyr-phosphorylated, as was the endoplasmic reticulum protein, immunoglobulin heavy chain-binding protein, that co-immunoprecipitated with ACE. Tyrosine angiotensin I converting enzyme Homo sapiens
4 These results indicate that ACE Tyr phosphorylation, probably in the endoplasmic reticulum, enhances the rate of its cleavage secretion at the plasma membrane using a regulatory pathway that may involve p38 MAP kinase. Tyrosine angiotensin I converting enzyme Homo sapiens