CTP-dependent endogenous ADP-ribosylation of a 38 kDa protein in HL-60 cell membranes.

Abstract

Incubation of membranes of human promyelocytic leukemia HL-60 cells with [32P]NAD led to ADP-ribosylation of several proteins including a 38 kDa protein by endogenous ADP-ribosyltransferases. The ADP-ribosylation of the 38 kDa protein was distinctly different from others on the basis of pH dependency and heat stability at 50 degrees C, suggesting that there… (More)

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