Mapping of the primary binding site of measles virus to its receptor CD46

Christian J. Buchholz, Daniel Koller, Patricia Devaux, Christian Mumenthaler, Jürgen Schneider-Schaulies, Werner Braun, Denis Gerlier, Roberto Cattaneo

Research output: Contribution to journalArticle

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Abstract

The measles virus (MV) hemagglutinin binds to the complement control protein (CCP) CD46 primarily through the two external modules, CCP-I and - II. To define the residues involved in binding, 40 amino acids predicted to be solvent-exposed on the CCP-I-II module surface were changed to either alanine or serine. Altered proteins were expressed on the cell surface, and their abilities to bind purified MV particles, a soluble form of hemagglutinin (sH) and nine CD46-specific antibodies competing to different levels with sH attachment, were measured. All proteins retained, at least in part, MV and sH binding, but some completely lost binding to certain antibodies. Amino acids essential for binding of antibodies weakly or moderately competing with sH attachment are situated in the membranedistal tip of CCP-I, whereas residues involved in binding of strongly sH competing antibodies cluster in the center of CCP-I (Arg-25, Asp-27) or in CCP-II (Arg- 69, Asp-70). Both clusters face the same side of CCP-I-II and map close to amino acid exchanges impairing sH binding (E11A, R29A, P39A, and D70A) or MV binding (D70A and E84A) and to a six-amino acid loop, previously shown to be necessary for sH binding.

Original languageEnglish (US)
Pages (from-to)22072-22079
Number of pages8
JournalJournal of Biological Chemistry
Volume272
Issue number35
DOIs
StatePublished - Aug 29 1997

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Measles virus
Viruses
Complement System Proteins
Binding Sites
Proteins
Virus Attachment
Antibodies
Hemagglutinins
Amino Acids
Essential Amino Acids
Alanine
Virion
Serine

ASJC Scopus subject areas

  • Biochemistry

Cite this

Buchholz, C. J., Koller, D., Devaux, P., Mumenthaler, C., Schneider-Schaulies, J., Braun, W., ... Cattaneo, R. (1997). Mapping of the primary binding site of measles virus to its receptor CD46. Journal of Biological Chemistry, 272(35), 22072-22079. https://doi.org/10.1074/jbc.272.35.22072

Mapping of the primary binding site of measles virus to its receptor CD46. / Buchholz, Christian J.; Koller, Daniel; Devaux, Patricia; Mumenthaler, Christian; Schneider-Schaulies, Jürgen; Braun, Werner; Gerlier, Denis; Cattaneo, Roberto.

In: Journal of Biological Chemistry, Vol. 272, No. 35, 29.08.1997, p. 22072-22079.

Research output: Contribution to journalArticle

Buchholz, CJ, Koller, D, Devaux, P, Mumenthaler, C, Schneider-Schaulies, J, Braun, W, Gerlier, D & Cattaneo, R 1997, 'Mapping of the primary binding site of measles virus to its receptor CD46', Journal of Biological Chemistry, vol. 272, no. 35, pp. 22072-22079. https://doi.org/10.1074/jbc.272.35.22072
Buchholz CJ, Koller D, Devaux P, Mumenthaler C, Schneider-Schaulies J, Braun W et al. Mapping of the primary binding site of measles virus to its receptor CD46. Journal of Biological Chemistry. 1997 Aug 29;272(35):22072-22079. https://doi.org/10.1074/jbc.272.35.22072
Buchholz, Christian J. ; Koller, Daniel ; Devaux, Patricia ; Mumenthaler, Christian ; Schneider-Schaulies, Jürgen ; Braun, Werner ; Gerlier, Denis ; Cattaneo, Roberto. / Mapping of the primary binding site of measles virus to its receptor CD46. In: Journal of Biological Chemistry. 1997 ; Vol. 272, No. 35. pp. 22072-22079.
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