Antibody - receptor ligand interaction

From: Gregor Rothe (gregor.rothe@klinik.uni-regensburg.de)
Date: Fri Mar 17 2000 - 11:37:39 EST


Hello,

just in the process of submitting a paper for publication we have the
problem to explain a slightly curious phenomenon. A monoclonal towards a new
receptor which we are characterizing when preincubated with the cells will
inhibit subsequent ligand binding. Receptors preincubated with ligands,
however, will be normally stained with the antibody despite ligand binding.

There clearly is a structural model which is compatible with this
observation, i.e. an epitope which will form a sort of gate after antibody
binding which does not allow the ligand to enter a groove within the
receptor. However, we would prefer if we can cite a reference for a similar
observation. Can anybody help us with such a reference?

Thanks for any help on this subject.

Gregor Rothe

Institute for Clinical Chemistry
University of Regensburg
Franz-Josef-Strauss-Allee 11
D-93053 Regensburg, Germany
Phone +49 941 944 6204
Fax +49 941 944 6202



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