PMID: 3753511Jul 1, 1986Paper

On the differential release of glycolytic enzymes from cellular structure

Biochemistry International
L Humphreys, C J Masters

Abstract

In an endeavour to extend the available information on the biological significance of the interactions between glycolytic enzymes and cellular ultrastructure, the role of release of enzymes from digitonized fibroblasts has been studied. Lactate dehydrogenase and phosphofructokinase were rapidly and quantitatively eluted under the experimental conditions, while glyceraldehyde-3-phosphate dehydrogenase and aldolase were retained to an appreciably greater extent by the cells. This differential release of glycolytic enzymes has been related to the known binding propensities between those enzymes and subcellular structures, and are interpreted as providing additional confirmatory evidence of the importance of aldolase and glyceraldehyde-3-phosphate dehydrogenase, in particular, to these associations. The data also shed light on the order of binding of these glycolytic components - phosphofructokinase being indicated as binding subsequently (and probably separately) to aldolase and glyceraldehyde-3-phosphate dehydrogenase. These results have been discussed in relation to the available data on the associations between glycolytic enzymes and cellular structure, the possible physiological significance of this phenomenon, and the access ...Continue Reading

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