You are not currently logged in.
Access JSTOR through your library or other institution:
Nucleotide effects on glucan-synthesis activities of particulate enzymes from Saprolegnia
Vol. 159, No. 2 (1983), pp. 130-135
Published by: Springer
Stable URL: http://www.jstor.org/stable/23377046
Page Count: 6
You can always find the topics here!Topics: Nucleotides, Glucans, Enzymes, Particulate matter, Cell walls, Kinetics, Radioactive decay, Uracil nucleotides, Physiological regulation, Incubation
Were these topics helpful?See somethings inaccurate? Let us know!
Select the topics that are inaccurate.
Preview not available
Membrane-bound β-1-3- and β-1-4-glucan synthetases of Saprolegnia are affected in vitro by the presence of nucleotides. Both enzymatic activities are inhibited by uridine nucleotides. Guanosine 5′-triphosphate and ATP reduce β-1-3-glucan synthesis but stimulate β-1-4-glucan production; they also increase Vmax without effect on the Km for uridine 5′-diphosphate glucose. The stimulation by ATP could be the result of an activation or stabilization of the enzymes and might have implications for cell-wall construction during hyphal growth.
Planta © 1983 Springer