منابع مشابه
THE CALCIUM BINDING SITES OF THE BAKERS' YEAST TRANSKETOLASE
The calcium binding sites of Bakers' Yeast Transketolase (TK) was elucidated by estimating the pKa values of the functional groups that bind to calcium. These pKa's were found to be 6.25 and 7.2 relating to the pKa's of the two immidazol moieties of histidine residues on the enzyme. The rate of the binding of calcium to the enzyme was obtained separately as a function of pH. Maximum values ...
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Two DNA polymerases are present in extracts of commercial bakers' yeast and wild type Saccharomyces cerevisiae grown aerobically to late log phase. Yeast DNA polymerase I and yeast DNA polymerase II can be separated by DEAE-cellulose, hydroxylapatite, and denatured DNA-cellulose chromatography from the postmitochondrial supernatants of yeast lysates. The yeast polymerases are both of high molec...
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In the course of studies of formaldehyde metabolism in yeast (I), an enzyme was found that catalyzed the oxidation of formaldehyde in the presence of glutathione and diphosphopyridine nucleotide. A similar enzyme was discovered independently by Strittmatter and Ball in liver (2). This paper describes the partial purification and some of the properties of yeast formaldehyde dehydrogenase. Some e...
متن کاملthe calcium binding sites of the bakers' yeast transketolase
the calcium binding sites of bakers' yeast transketolase (tk) was elucidated by estimating the pka values of the functional groups that bind to calcium. these pka's were found to be 6.25 and 7.2 relating to the pka's of the two immidazol moieties of histidine residues on the enzyme. the rate of the binding of calcium to the enzyme was obtained separately as a function of ph. maxi...
متن کاملEffect of sodium chloride on bakers' yeast growing in gelatin.
In recent years, industrial fermentation researchers have shifted their attention from liquid to solid and semisolid culture conditions. We converted liquid cultures to the semisolid mode by adding high levels of gelatin. Previous studies on liquid cultures have revealed the inhibitory activity of mineral salts, such as NaCl, on the fermentation of sugars by yeasts. We made a kinetic study of t...
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ژورنال
عنوان ژورنال: Eiyo To Shokuryo
سال: 1953
ISSN: 1883-8863
DOI: 10.4327/jsnfs1949.6.52