Abstract

Antibodies were raised against glycine and they were specific for immunocytochemistry. Obtained from rabbits immunized with glycine conjugated to glutaryled protein-carriers, antisera were then purified by adsorption on the various glutaraldehyde-conjugated protein-carriers. Using a modified ELISA method, their specificity was determined in competition experiments between conjugated glycine and either non-conjugated glycine or other conjugated amino acids or derivatives, preincubated with anti-glycine antibodies. Calculated at half-displacement, the resulting cross-reactivity ratios showed conjugated glycine to be the best recognized compound. By revealing the presence of the majority of the glycine-containing cell bodies in the brainstem and spinal cord, immunocytochemical applications of glycine antibodies confirmed their use as specific tools for a better understanding of the role of glycine in the central nervous system.

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