The present invention provides an antibody directed to an epitope of a G -protein coupledreceptor, wherein the antibody binds to the extracellular N terminal region ofthe receptor andthe binding of the antibody to the G - protein coupled receptor inducesreceptor internalization incells, wherein the receptor is metabotropic glutamate receptor 7 (mGluR7) andwherein theantibody is produced by hybridoma cell line deposited with DSMZ as DSMACC2855.
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