نتایج جستجو برای: l valine
تعداد نتایج: 625024 فیلتر نتایج به سال:
l-[3,3'-(3)H]cystine was incorporated into penicillin with retention of one tritium. This result can be explained by beta-lactam formation through ring closure between C3 of cysteine and NH of valine. No radioactivity of dl-[2,3-(3)H]valine was incorporated into penicillin. The loss of isotope at C2 occurs during the inversion of configuration. The loss of label at C3 is discussed in terms of p...
Previous studies have demonstrated that thyroid hormones in vitro stimulate microsomal protein synthesis in cell-free systems, but the effect was found to be indirect and dependent on the presence of mitochondria in the incubation system. The mitochondrial requirement has recently been questioned by Carter ef al. ((1971) J. Biol. Chem. 246,4973), who claimed to observe direct stimulations by th...
This study evaluated live performance, carcass, abdominal fat and commercial cuts yields of broilers fed corn-soybean meal diets with increasing digestible valine to lysine levels from 21 to 42 days of age. One thousand five hundred and seventy-five Cobb vs Cobb 500 male broilers were raised with the same commercial mash feed until 21 days of age. Seven treatments with 9 replications of 25 bird...
The function of free amino acids in protein synthesis, as a source energy and unique roles catabolism have been well studied plant development but their postharvest fruit vegetables has received little attention. This study evaluated 11 acids—arginine, alanine, aspartic acid, glutamic glycine, ornithine, phenylalanine, serine, tyrosine, tryptophan valine—on the senescence broccoli. Broccoli flo...
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