General Description of the Volume:lt;/b> Small GTPases play a key role in many aspects of contemporary cell biology: control of cell growth and differentiation; regulation of cell adhesion and cell movement; the organization of the actin cytoskeleton; and the regulation of intracellular vesicular transport. This volume plus its companions Volumes 256 and 257 cover all the biochemical and biological assays currently in use for analyzing the role of small GTPases in many aspects of cell biology at the molecular level. General Description of the Series:lt;/b> The critically acclaimed laboratory standard for more than forty years, Methods in Enzymologylt;/b> is one of the most highly respected publications in the field of biochemistry. Since 1955, each volume has been eagerly awaited, frequently consulted, and praised by researchers and reviewers alike. Now with more than 300 volumes (all of them still in print), the series contains much material still relevant today--truly an essential publication for researchers in all fields of life sciences. Key Features * Expression, purification, and posttranslational modification * Guanine nucleotide exchange and hydrolysis * Cell expression and analysis in Vitrolt;/i> * Biological activityBalch, W. E. is the author of 'Methods in Enzymology Small Gtpases and Their Regulators Part A, Ras Family' with ISBN 9780121821562 and ISBN 0121821560.