Open AccessIsozymes delta of phosphoinositide-specific phospholipase C.
Author(s) -
Tadeusz Pawełczyk
Publication year - 1999
Publication title -
acta biochimica polonica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.452
H-Index - 78
eISSN - 1734-154X
pISSN - 0001-527X
DOI - 10.18388/abp.1999_4186
Subject(s) - isozyme , phospholipase c , intracellular , phosphatidylinositol , phosphoinositide phospholipase c , gq alpha subunit , biochemistry , delta , phospholipase , biology , microbiology and biotechnology , protein kinase c , enzyme , chemistry , signal transduction , g protein , engineering , aerospace engineering
Phospholipase C (PLC, EC 3.1.4.11) is the major starting point in the phosphatidylinositol pathway, which generates intracellular signals that regulate protein kinase C and intracellular calcium concentration. To date, three major types of phosphoinositide-specific PLC species named beta, gamma and delta, have been characterized. This article reviews recent studies on isozymes delta of PLC. Four such isozymes have been cloned and termed delta1-4. Their structural organization, regulation of activity and the interaction with membrane lipid are considered. The intracellular localization of delta isozymes and distribution in various tissues are presented. Attention is given to the pathological conditions in which an abnormal protein level of PLC delta or its activity have been observed.