STUDIES ON THIAMINE-DECOMPOSING THERMOSTABLE FACTORS
نویسندگان
چکیده
منابع مشابه
Studies on Thiamine Analocues
Several analogues of thiamine’ are known to compete with the vitamin when administered to animals. Thus, Woolley and White (1) have observed that pyrithiamine caused the manifestation of typical thiamine deficiency symptoms, which could be competitively overcome by the vitamin. The antivitamin effect of oxythiamine in mice has been reported by Soodak and Cerecedo (2). Cerecedo et al. (3, 4), co...
متن کاملStudies on thiamine diphosphate-dependent enzymes.
The 3-deaza analogue of TPP (thiamine diphosphate), a close mimic of the ylid intermediate, has been synthesized and is an extremely potent inhibitor of a variety of TPP-dependent enzymes, binding much more tightly than TPP itself. Results using deazaTPP complexed with the E1 subunit of PDH (pyruvate dehydrogenase) have led to a novel proposal about the mechanism of this enzyme. The 2-substitut...
متن کاملStudies on an alkali-thermostable xylanase from Aspergillus fumigatus MA28
An alkalitolerant fungus, Aspergillus fumigatus strain MA28 produced significant amounts of cellulase-free xylanase when grown on a variety of agro-wastes. Wheat bran as the sole carbon source supported higher xylanase production (8,450 U/L) than xylan (7,500 U/L). Soybean meal was observed to be the best nitrogen source for xylanase production (9,000 U/L). Optimum medium pH for xylanase produc...
متن کاملStudies on the Nature of the Binding of Thiamine Pyrophosphate
The binding of thiamine pyrophosphate (TPP) to several enzymes has been determined by measuring cofactordependent activity after passage of each enzyme through a column of Sephadex G-25 to remove non-protein-bound cofactors. TPP was found to be bound irreversibly to yeast and Zymomonas pyruvate decarboxylases, Aerobacter (Yacetolactate synthetase, and Escherichia glyoxylate carboligase. Cofacto...
متن کاملStudies on a new oxalate-decomposing bacterium, Pseudomonas oxalaticus.
Since Bhat and Barker (1948) reviewed the existing literature and reported on the isolation and characteristics of an oxalate-decomposing Vibrio, only two attempts appear to have been made to study the problem of oxalate decomposition by microorganisms. One of the studied reported (Janota, 1950) relates to the utilization of oxalate by Psudomonas extorquens Basalik, whereas the other by Muiller...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: THE JOURNAL OF VITAMINOLOGY
سال: 1956
ISSN: 0022-5398
DOI: 10.5925/jnsv1954.2.31