Results 241 to 250 of about 2,850,086 (292)

Late intermediates in the biosynthesis of narciclasine

Journal of the Chemical Society D: Chemical Communications, 1971
Tracer experiments show the intermediacy of racemic noroxomaritidine (5), normaritidine (7), and crinine (4) in the biological conversion of O-methylnorbelladine (1) into narciclasine (11).
C. Fuganti, M. Mazza
openaire   +1 more source

Difference Spectra Of Late Intermediates Of The Bacteriorhodopsin Photocycle

SPIE Proceedings, 1989
The flash-induced difference absorbance spectra of bacteriorhodopsin (BR) were measured at various times after an actinic flash using a diode array spectrophotometer (300-700 nm). Difference spectra for three late bacteriorhodopsin photocycle intermediates Mfast (Mf), mslow (Ms) and R are reported.
R. Govindjee, Zs. Dancshazy, T. G. Ebrey
openaire   +1 more source

Studies on the late steps of (+) pisatin biosynthesis: Evidence for (−) enantiomeric intermediates

Phytochemistry, 2006
Pisatin, a 6a-hydroxyl-pterocarpan phytoalexin from pea (Pisum sativum L.), is relatively unique among naturally occurring pterocarpans by virtue of the (+) stereochemistry of its 6a-11a C-C bond. However, pisatin synthesizing pea tissue has an isoflavone reductase, first identified in alfalfa, which acts on the (-) antipode.
Gregory L, DiCenzo, Hans D, VanEtten
openaire   +2 more sources

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