Cleavage of incoming Semliki Forest virus capsid protein within the endocytotic pathway: a feature common to both invertebrate and mammalian cells

Cleavage of incoming Semliki Forest virus capsid protein within the endocytotic pathway: a... During the initial stages of Semliki Forest virus (SFV) infection in mammalian (baby hamster kidney, BHK) cells, the cleavage of SFV capsid protein could be detected. Analysis of subcellular fractions from SFV-infected BHK cells showed that (a) cleavage of the capsid protein occurred within a prelysosomal compartment of the endocytotic pathway, and (b) following release of the nucleocapsid into the cytoplasm, a 17.5 kD capsid protein fragment could be detected in the subcellular fraction which contained ribosomes. We have previously reported the cleavage of incoming SFV capsid protein in mosquito cells, too. Thus, the proteolytic cleavage of incoming SFV capsid protein is a feature which is common to both invertebrate and mammalian cells. These data further support our hypothesis that the cleavage of incoming capsid protein might provide the conformational change which primes the SFV nucleocapsid for uncoating. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Cleavage of incoming Semliki Forest virus capsid protein within the endocytotic pathway: a feature common to both invertebrate and mammalian cells

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Publisher
Springer-Verlag
Copyright
Copyright © Wien by 1997 Springer-Verlag/
Subject
Legacy
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s007050050208
Publisher site
See Article on Publisher Site

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