THE RESPONSE TO GLUCOGENIC STRESS OF FRUCTOSE-1,6-DIPHOSPHATASE IN RABBIT LIVER
نویسندگان
چکیده
منابع مشابه
Involvement of cytosol proteins in oleate activation of rabbit liver fructose-1,6-diphosphatase.
Dialyzed rabbit liver cytosol was specifically freed of endogenous fructose-1,6-diphosphatase by immunoadsorption on a column of Sepharose-immobilized anti-fructose-1,6-diphosphatase. This material increased the specific activity of homogeneous enzyme to the maximal rate observed with EDTA and shifted the pH optimum from 8.4 to 7.4. With oleate or other fatty acids as activators, the hydrolysis...
متن کاملFructose diphosphatase from rabbit liver. II. Changes in catalytic properties induced by dinitrofluorobenzene.
In the preceding paper we have described the crystallization of fructose 1,6-diphosphatase from rabbit liver (1). The purified enzyme has been shown to be homogeneous in sucrose gradient centrifugation and in disk gel electrophoresis, and to catalyze the hydrolysis of fructose-l, 6-di-P and sedoheptulose1,7-di-P at nearly equal rates (1, 2). Since its discovery by Gomori in 1943 (3), there has ...
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The catalytic activity of rabbit liver fructose diphosphatase is enhanced more than fourfold by treatment with coenzyme A or acyl carrier protein. Other sulfhydryl compounds, such as glutathione or cysteine, are without effect. Activation is reversed by reduced glutathione or cysteine, indicating that the enzyme and activator are linked by disulfide bridges. The activated enzyme derivative can ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1956
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)50783-9