Functional analysis of the individual oligosaccharide chains of sendai virus fusion protein.

Functional analysis of the individual oligosaccharide chains of sendai virus fusion protein. Research Abstract Details 

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Functional analysis of the individual oligosaccharide chains of sendai virus fusion protein. Abstract Text:

H Segawa,T Yamashita,M Kawakita,H Taira,

The roles of N-linked glycosylation in the intracellular transport and fusion activity of the Sendai virus fusion (F) protein were studied. Each of three potential glycosylation motifs (designated g1, g2, and g3) in the F protein was mutated separately or in combination with the other sites. When the mutant F proteins were transiently expressed in COS cells, they showed significant changes in electrophoretic mobility, indicating that all three motifs in the F protein are glycosylated. Glycosylation-defective mutants which lacked the g2-oligosaccharide chain showed decreased immunoreactivity with a monoclonal antibody specific for the native conformation and were inefficiently transported to the cell surface. Such mutants, with the exception of a double mutant lacking g1 and g2-oligosaccharide chains, were also not able to induce syncytia formation when cells expressing them plus the hemagglutinin-neuraminidase protein were treated with trypsin. Mutations at the other glycosylation sites did not significantly affect the immunoreactivity with the monoclonal antibody or the efficiency of intracellular transport of the F protein. These results indicate that the N-linked oligosaccharide chain attached at g2 is important for efficient intracellular transport and for the fusion activity of the F protein.

Functional analysis of the individual oligosaccharide chains of sendai virus fusion protein. Publishing Authors By Initials

H Segawa,T Yamashita,M Kawakita,H Taira,

For similar proteins: membrane proteins: membrane fusion proteins: viral fusion proteins research abstracts see: proteins: membrane proteins: membrane fusion proteins: viral fusion proteins research

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Functional analysis of the individual oligosaccharide chains of sendai virus fusion protein. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of biochemistry

VOLUME: 128

Page Numbers: 65-72

Journal Abbreviation: J. Biochem.

ISSN: 0021-924X

DAY: 19

MONTH: Jul

YEAR: 2000

Functional analysis of the individual oligosaccharide chains of sendai virus fusion protein. Information

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LANGUAGE: eng

NlmUniqueID: 376600

Functional analysis of the individual oligosaccharide chains of sendai virus fusion protein. Keywords Mesh Terms:

KEYWORDS: Viral Fusion Proteins

MESH TERMS: physiology

Chemical & Substance for Abstract: Functional analysis of the individual oligosaccharide chains of sendai virus fusion protein. Information

Substance Name: Viral Fusion Proteins

Registry Number: 0

Grant and Affiliation Information for Functional analysis of the individual oligosaccharide chains of sendai virus fusion protein.

AFFILIATION: Department of Bioscience and Technology, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan.

Country: JAPAN

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MEDLINETA: J Biochem

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