R.L. Khandelwal and J.H. Wang: Preface.- Protein Kinases.- Expression, purification, characterization, and deletion mutations of phosphorylase kinase ? subunit: identification of an inhibitory domain in the ? subunit.- Interaction sites on phosphorylase kinase for calmodulin.- Preparation and functional characterization of a catalytically active fragment of phosphorylase kinase.- Development and characterization of fluorescently-labeled myosin light chain kinase calmodulin-binding domain peptides.- Autophosphorylation: a salient feature of protein kinases.- Expression of cGMP-dependent protein kinase in Escherichia coli.- Chicken smooth muscle myosin light chain kinase is acetylated on its NH2-terminal methionine.- Calcium/calmodulin-dependent protein kinase II: role in learning and memory.- In vitro substrate specificity of protein tyrosine kinases.- Protein Phosphatases.- Mutagenesis of the catalytic subunit of rabbit muscle protein phosphatase-.- Serine phosphorylation of protein tyrosine phosphatase (PTP1B) in HeLa cells in response to analogues of cAMP or diacylglycerol plus okadaic acid.- Purification and characterization of the human protein tyrosine phosphatase, PTP ?, from a baculovirus expression system.- Protein tyrosine phosphatase activity in Leishmania donovani.- Protein Phosphorylation in Signal Transduction.- The phosphorylation of stathmin by MAP kinase.- Networking with mitogen-activated protein kinases.- Interleukin-8 activates microtubule-associated protein 2 kinase (ERK1) in human neutrophils.- Signal transduction through the cAMP-dependent protein kinase.- Casein kinase II in signal transduction and cell cycle regulation.- The MAP kinase cascade. Discovery of a new signal transduction pathway.- Does the insulin-mimetic action of vanadate involve insulin receptor kinase?.- Cellular Regulation by Reversible Phosphorylation.- Phosphorylation of vertebrate nonmuscle and smooth muscle myosin heavy chains and light chains.- Phosphorylation of myosin lCs