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. 1987 Apr;84(7):1824–1828. doi: 10.1073/pnas.84.7.1824

Cauliflower mosaic virus coat protein is phosphorylated in vitro by a virion-associated protein kinase

José Martinez-Izquierdo 1, Thomas Hohn 1
PMCID: PMC304533  PMID: 16593818

Abstract

A protein kinase has been found to be associated with particles of the plant virus cauliflower mosaic virus. This protein kinase can phosphorylate endogenous viral capsid proteins in vitro and exchange substrates with casein kinase type II. The activity is not affected by cAMP but is enhanced considerably by ADP. The cofactor is either Mn2+ or Mg2+, and the phosphate donor is either ATP or GTP. Serine and threonine residues are phosphorylated.

Keywords: ADP, casein kinase, plant virus, retroid virus, reverse transcription

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