Immunogenic Ia-binding peptides immobilize the Ia molecule and facilitate its aggregation on the B cell membrane

Control by the Mls-1 gene

Salaheddine Mecheri, Michael A Edidin, Günther Dannecker, Robert S. Mittler, Michael K. Hoffmann

Research output: Contribution to journalArticle

Abstract

Aggregation (e.g., through cross-linkage) of cell surface molecules is in various biologic systems a necessary event in cellular activation. Examining the Ia molecule on B cells we found that aggregation is a function of the surface Ag mobility; the higher the fraction of immobile molecules on the plane of the membrane, the better Ia forms aggregates and patches. We identify two factors that control Ia mobility and aggregability. One factor is the Mls-1a gene product; the other factor is an Ia-reactive immunogenic peptide. Both factors increase Ia aggregability and reduce the MHC Ag mobility.

Original languageEnglish (US)
Pages (from-to)1361-1368
Number of pages8
JournalJournal of Immunology
Volume144
Issue number4
StatePublished - Feb 15 1990

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Cell Aggregation
B-Lymphocytes
Cell Membrane
Peptides
Membranes
Genes

ASJC Scopus subject areas

  • Immunology

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Immunogenic Ia-binding peptides immobilize the Ia molecule and facilitate its aggregation on the B cell membrane : Control by the Mls-1 gene. / Mecheri, Salaheddine; Edidin, Michael A; Dannecker, Günther; Mittler, Robert S.; Hoffmann, Michael K.

In: Journal of Immunology, Vol. 144, No. 4, 15.02.1990, p. 1361-1368.

Research output: Contribution to journalArticle

Mecheri, Salaheddine ; Edidin, Michael A ; Dannecker, Günther ; Mittler, Robert S. ; Hoffmann, Michael K. / Immunogenic Ia-binding peptides immobilize the Ia molecule and facilitate its aggregation on the B cell membrane : Control by the Mls-1 gene. In: Journal of Immunology. 1990 ; Vol. 144, No. 4. pp. 1361-1368.
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