Cytoplasmic Compartmentalization of the Protein and Ribonucleic Acid Species of Vesicular Stomatitis Virus
AUTOR(ES)
Wagner, Robert R.
RESUMO
The cytoplasmic sites of synthesis in L cells of the protein and ribonucleic acid species of vesicular stomatitis virus were studied by polyacrylamide gel electrophoresis after fractionation of membrane and other cytoplasmic components by the Caliguiri-Tamm technique. The viral spike protein (glycoprotein G) was found primarily associated with a smooth membrane fraction which is rich in plasma membrane; the G protein was also present in fractions containing rough endoplasmic reticulum. The nonglycosylated envelope protein S (also called M) was found in the smooth membrane fractions but was more abundant in endoplasmic reticulum-enriched fractions. Longer labeling resulted in detection of nucleoprotein N, as well as other minor nucleocapsid proteins L and NS1, in the cellular membrane fractions. The N protein appeared to be made in membrane-free cytoplasm along with progeny ribonucleic acid and later became associated with membrane containing G and S viral proteins.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=356353Documentos Relacionados
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