The BBA Molecular Cell Research section focuses on cellular processes at the molecular level. These include aspects of intracellular trafficking, regulation of the secretory and endocytic pathways, sorting and targetting, organisation and dynamics of cytoskeletal structures, cellular interactions, cell cycle regulation, cell/tissue differentiation and cellular enzymology. Also included are studies at the interface between Cell Biology and Biophysics which apply for example novel imaging methods for characterizing cellular processes. Excluded, however, are studies describing purely cellular or pharmacological aspects. Subsection 'Signal Transduction' primarily focuses on hormone and neurotransmitter action, receptor structure and regulation, transmembrane signalling systems, second messengers, protein phosphorylation, and calcium in signal transduction.Types of papers published: regular papers, rapid reports, short sequence papers, reviews and mini-reviews.The table of contents for this journal is now available pre-publication, via e-mail, as part of the free ContentsDirect service from Elsevier Science. Please send an e-mail message to cdhelp@elsevier.co.uk for further information about this service.