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“All actively transported substances tested including L-phenylalanine, L-leucine, D-galactose, D-glucose , and 3-O-methylglucose inhibited the transport of uracil.”
“ Glucose added to the medium enhances the incorporation of uracil progressively to about 35-fold when its concentration is increased to 3–5 mM; the increase in orotic acid incorporation under similar conditions is very small.”
Life sciences. Pt. 2: Biochemistry, general and molecular biology • 1972 | View Paper
“When wild type cells were grown on glucose in the presence of uracil , four enzyme activities were depressed while all five enzyme activities increased in succinate-grown cells supplemented with uracil.”
“On the other hand, uracil-labeled cells fed glucose retained more of the uracil than did nonfed cells, but glucose elicited some oxidation of uracil.”
“Addition of glucose or ribose simultaneously with the inducer shortens the lag period to approximately 5 min and increases the rate of uracil incorporation.”