Thiamine synthesis

Calcium hyaluronate, 376-377 Calcium pectate, 353 Calcium welan, structure, 432-434 Candida utilis, thiamine synthesis,... 

S ATP -I- thiamine phosphate <1, 2> (<2> enzyme plays an important role in the thiamine diphosphate biosynthetic pathway, thiamine diphosphate is the regulatory molecule for thiamine synthesis and predicts the existence of a sensor/regulatory protein [2]) (Reversibility <1, 2> [1, 2])... 

In a study of thiamin production by a strain of E. coli, Iwashima and Nose (70MI10400) noted that thiamin synthesis was repressed by addition of phenylalanine to the growth medium. The fact that this repression could be reversed by addition of the intact thiazole... 

As in the synthesis of the thiazole nucleus, yeasts appear to utilize a quite different pathway from bacteria for the formation of the pyrimidine. While bacterial thiamin synthesis is inhibited by exogenous purines, thiamin production by yeast is unaffected. It... 

Analogs and Inhibitors, When we use prototrophic microorganisms, production of repressors can be reduced by addition of end product analogs to the medium. Thus, all 10 histidine pathway enzymes are derepressed up to 30-fold by 2-thiazolealanine (Ames and Hartman, 1963). In a similar manner, adenine, which inhibits thiamine synthesis, derepresses the enzymes of thiamine biosynthesis (Kawasaki et al., 1969). 

Molds, thiamine content of, VI, 166 thiamine synthesis hy, VI, 170 Mole, hydatidiform, chorionic gonadotropin secretion and, X, 168... 

The ability to utilize a mixture of the vitamin pyrimidine and the vitamin thiazole is shared by the pea root with other organisms such as the fungus Phycomycea blakealeeanus ( ) and indeed with mammals (S). It had previously been shown for excised tomato roots that the thiazole alone but not the pyrimidine can satisfactorily replace the thiamine requirement (4). It may be supposed that in this case the pyrimidyl moiety is synthesized by the organism. On the basis of the above facts we may then postulate that the final step in one pathway leading to thiamine synthesis may be represented ... 

Thiamin synthesis by a wide variety of micro-organisms has been studied,. 

The Effect of Different Carbohydrates Ingested for One Week on Thiamin Synthesis in... 

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