The amino acid sequence previously attributed to a protein kinase or a TCP1-related molecular chaperone and co-purified with phytochrome is a β-glucosidase - Gus-Mayer, S.; Brunner, H.; Schneider-Poetsch, H.A.W.; Lottspeich, F.; Eckerskorn, C.; Grimm, R.; Rudiger, W. (Elsevier)
A 60 kDa protein (P60) co-purified with phytochrome was identified as avenacosidase, a β-glucosidase which is part of the defense system of Avena sativa. An antiserum raised against P60 was used to isolate a cDNA clone coding for the complete amino acid sequence of P60. The cDNA-derived amino acid sequence contained the partial sequences described before for a protein kinase [(1989) Planta 178, 199-206] and for a TCP1-related molecular chaperone [(1993) Nature 363, 644-647] co-purified with phytochrome. We conclude that these activities were related to minor contaminants and that only sequences of avenacosidase had been obtained.
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Keywords: W; V; U