Some topics covered in this tenth volume include small GTP-binding proteins and the regulation of the actin cytoskeleton; signal sequence recognition and protein targeting to the endoplasmic reticulum membrane; vertebrate limb development; microtubules in plant morphogenesis; structure of actin-binding proteins; dyneins; cell biology of the amyloid B-protein precursor and the mechanism of Alzheimer's disease; and structure, regulation, and function of NF-kB. Annotation copyright by Book News, Inc., Portland, OR