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5215512 
Journal Article 
Release of anchored membrane enzymes by lipoamidase 
Oizumi, J; Hayakawa, K 
1992 
1 
Molecular and Cellular Biochemistry
ISSN: 0300-8177
EISSN: 1573-4919 
115 
1 
11-17 
English 
1435760 
Lipoamidase is found to be able to release various membrane-anchored enzymes from the membrane compartment of pig brain. Released enzymes revealed their intact enzyme activities in the soluble fraction. Lipoamidase could release at least two types of anchored enzymes, i.e. glycosyl-phosphatidylinositol-bonded and myristoylated enzymes, but not integral membrane bound enzymes. The reaction was competitively inhibited by lipoyllysine. This releasing mechanism found in the membranes may play important roles in the secretory mechanism of extracellular enzymes and also in the cellular signal-transduction system through topological changes in cellular enzymes.