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  • Title: 12-O-tetradecanoyl phorbol 13-acetate stimulates the myristylation of an approximately 82 kDa protein in HL-60 cells.
    Author: Malvoisin E, Wild F, Zwingelstein G.
    Journal: FEBS Lett; 1987 May 04; 215(1):175-8. PubMed ID: 3471531.
    Abstract:
    We have studied protein acylation using [3H]myristate in the two leukemia cell lines HL-60 and HL-60 Blast II. The latter is a variant which does not differentiate after treatment with 12-O-tetradecanoyl phorbol 13-acetate (TPA). The acylation profiles of the two cell lines as examined by SDS-PAGE differed. TPA induced the myristylation of an approximately 82 kDa protein in the sensitive cells, but not in the resistant cells. Myristic acid was shown to be covalently linked to these proteins. Analysis of the cell lipids labelled with [3H]myristate showed that in contrast to observations with the proteins, the changes induced by TPA were observed in both TPA-sensitive and TPA-resistant cells. We conclude that the induction of myristylation may be an important step in the mechanism of differentiation.
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