Hershenson S, Ernst-Fonberg ML. Comparison of 1-acylglycerophosphate and glycerophosphate acyltransferases from Euglena microsomes.
THE INTERNATIONAL JOURNAL OF BIOCHEMISTRY 1984;
16:219-23. [PMID:
6705973 DOI:
10.1016/0020-711x(84)90076-4]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Both glycerophosphate and monoacylglycerophosphate acyltransferases from Euglena microsomes were inhibited by N-ethylmaleimide, but their responses to heat inactivation and sn-glyceraldehyde-3-phosphate differed. Glycerophosphate acyltransferase had a higher V with palmitoyl-CoA compared to oleoyl-CoA; the reverse was true for monoacylglycerophosphate acyltransferase. Km's (microM) for the glycerophosphate acyltransferase were: palmitoyl-CoA, 21; oleoyl-CoA, 14; and sn-glycerol-3-phosphate, 2900. Km's (microM) for monoacylglycerophosphate acyltransferase were: palmitoyl-CoA, 7; oleoyl-CoA, 4; and 1-palmitoyl-sn-glycerol-3-phosphate, 48.
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