Editorial / William E. Balch -- Applications of protein mass spectrometry in cell biology / Adele Rowley ... [et al.] -- Use of the two-hybrid system to identify rab-interacting proteins / Isabelle Janoueix-Lerosey and Bruno Goud -- Purification and identification of novel rab effector using affinity chromatography / Savvas Christoforidis and Marino Zerial -- Stage-specific assays to study biosynthic cargo selection and role of SNAREs in export from the endoplasmic reticulum and delivery to the golgi / Bernard B. Allan ... [et al.] -- The use of liposomes to study COPII- and COPI-coated vesicle formation and membrane protein sorting / Ken Matsuoka and Randy Schekman -- Fluorescent indicators of peptide cleavage in the trafficking compartments of living cells : peptides site-specifically labeled with two dyes / Steven J. Bark and Klaus M. Hahn -- In vitro generation from the trans-golgi network of coatomer-coated vesicles containing sialylated vesicular stomatis virus-G protein / Jean-Pierre Simon ... [et al.] -- Site-specific photocrosslinking to probe interactions of Arf1 with proteins involved in budding of COPI visicles / Kird D. Fischer ... [et al.] -- Analysis of phosphoinositides in protein trafficking / Hiroko Hama, Jon Y. Takemoto, and Daryll B. DeWald -- Domain structure and function of dynamin probed by limited proteolysis / Amy B. Muhlberg and Sandra L. Schmid