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- Title
Biochemical properties of the P42 protein encoded by RNA segment 6 of Influenza C virus.
- Authors
Z.-N. Li; Y. Muraki; E. Takashita; Y. Matsuzaki; K. Sugawara; S. Hongo
- Abstract
Summary. P42, encoded by a colinear transcript of Influenza C virus RNA segment 6 (M gene), is an integral membrane protein which is cleaved by signal peptidase to generate M1' and CM2 composed of N-terminal 259 amino acids and C-terminal 115 amino acids, respectively. Herein, the biochemical features of P42 were investigated. N-glycosylated form of P42, designated P44, forms disulphide-linked dimers and tetramers. P44 is transported to the Golgi apparatus, but not to the trans-Golgi, since P44 is completely sensitive to endoglycosidase H. P44 and P42 are unstable irrespective of N-glycosylation or oligomerization. 26S proteasome inhibitor, lactacystin prevented the degradation of P42 as well as M1', but not that of P44 efficiently, suggesting that P44 is degraded by another protease besides the 26S proteasome.
- Subjects
INFLUENZA viruses; MEMBRANE proteins; RNA; AMINO acids
- Publication
Archives of Virology, 2004, Vol 149, Issue 2, p275
- ISSN
0304-8608
- Publication type
Article
- DOI
10.1007/s00705-003-0210-x