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In this volume of Reviews there are three outstanding articles, one on phspholipase D, an enzyme that is widely distributed in bacteria, protozoa, fungi, plants and animals. Phospholipase D carries out a transphosphatidylation reaction, which is unique to this enzyme. This review is focussed on mammalian PLDs. The second review deals with endotoxin tolerance, the term which describes the phenomenon that immune responses and metabolic changes are mitigated after repeated LPS administration. The third article summarizes the current knowledge relevant to understanding the molecular basis of GPCR...

Lipids traditionally have been viewed as serving two functions: to form cellular membranes and to serve as energy stores. During the last two decades, a new role for lipids has taken center stage: lipids can act as signalling molecules. This book deals with a variety of lipids that have been shown to be messengers. Leading scientists explore all known lipid classes except steroid hormones. Researchers and educators in biochemistry as well as in molecular and cellular biology will appreciate this volume.