International Review of Cytology presents current advances and comprehensive reviews in cell biology--both plant and animal. Articles in this volume address topics such as class A macrophage scavenger receptors, microtubule transport in the axon, G-protein-coupled receptors, genes involved in the initiation of DNA replication in yeast, phenotype switching in polymorphic tetrahymena, and mitosis and motor proteins. Authored by some of the foremost scientists in the field, each volume provides up-to-date information and directions for future research.