Retinoylation of proteins in leukemia, embryonal carcinoma, and normal kidney cell lines: differences associated with differential responses to retinoic acid.

Abstract excerpt

In HL60 cells a nuclear protein of Mr 55,000 is retinoylated, with the formation of a thioester bond. To gain further knowledge on the role of retinoylation we studied it in cell lines with varied responses to retinoic acid (RA). Compared to HL60 the extent of retinoylation (mol/cell) was about fivefold higher in HL60/MRI, a mutant which is more sensitive to RA than HL60. Retinoylation occurred to the same extent...

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