Both allelic forms of the rat T cell differentiation marker RT6 display nicotinamide adenine dinucleotide (NAD)-glycohydrolase activity, yet only RT6.2 is capable of automodification upon incubation with NAD.

Abstract excerpt

The finding that recently cloned mono-ADP-ribosyltransferases show sequence similarity to the rat T cell differentiation marker RT6 has led us to investigate the enzymatic activity of this alloantigenic system. To search for ADP-ribosylation of cell surface proteins, T cell populations from RT6.1- and RT6.2-expressing rat strains, as well as RT6.1+ and RT6.2+ T-T hybridoma cell lines, were incubated with...

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