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090			_aB-17414
245	1	0	_aAn enzyme from lupin seeds forming alanine derivatives of cytokinins
490	0		_vPhytoChemistry, 22(2), p. 375-381, 1983
520	3		_aA new enzyme, which catalyses the conversion of the cytokinin zeatin to the alanine conjugate lupinic acid, has been partly purified from developing lupin seed (Lupinus luteus). Paired-ion, reverse phase HPLC was adapted to analyse the enzyme reaction quantitatively. The enzyme used O-acetyl-l-serine as the source of the amino acid residue, and it interacted with substrates in a ping pong bi bi mechanism. A number of adenine derivatives served as substrates, but preference was shown for compounds with high cytokinin activity. The possible role of the enzyme, tentatively called B-(9-cytokinin)alanine synthase or lupinic acid synthase, in the regulation of hormone activity is discussed
650	1	4	_aLUPINUS LUTEUS
650	1	4	_aLEGUMINOSAE
650	1	4	_aCYTOKININ METABOLISM
650	1	4	_aENZYME FORMING ALANYL CONJUGATES
650	1	4	_aPURIFICATION
700	1	2	_aEntsch, B.
700	1	2	_aParker, C. W.
700	1	2	_aLetham, D. S.
856	4	0	_uhttps://drive.google.com/file/d/1QY244TKfvENgV9T7zbtYkGHGexcS87Ot/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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