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Biochemical Journal logoLink to Biochemical Journal
. 1980 Jul 15;190(1):183–189. doi: 10.1042/bj1900183

Subcellular distribution and some properties of N-ethylmaleimide-sensitive and-insensitive forms of glycerol phosphate acyltransferase in rat adipocytes.

E D Saggerson, C A Carpenter, C H Cheng, S R Sooranna
PMCID: PMC1162077  PMID: 6255941

Abstract

1. Glycerol phosphate acyltransferase (GPAT) activities were measured in subcellular fractions obtained from rat epididymal adipocytes. These contained both N-ethylmaleimide-sensitive and N-ethylmaleimide-insensitive forms of the enzyme. 2. As shown by parallel measurements of marker enzymes, N-ethylmaleimide-insensitive GPAT is most probably a mitochondrial activity, whereas N-ethylmaleimide-sensitive GPAT is the microsomal enzyme. 3. Subcellular distributions are also reported for dihydroxyacetone phosphate acyltransferase (DHAPAT) (assayed with and without N-ethylmaleimide), monoacylglycerol phosphate acyltransferase (MGPAT) and Mg2+-dependent and Mg2+-independent forms of phosphatidate phosphohydrolase (PPH).

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Selected References

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