منابع مشابه
Biotin and fat-soluble materials with biotin activity in the nutrition of mosquito larvae.
Recent work has shown that certain microorganisms can under appropriate conditions dispense with biotin if they are supplied with oleic acid or other related materials (l-5). Moreover, an oil from hydrolyzed plasma, as well as a partially purified fraction obtained from it, has been found to have biotin-like activity when injected into young chicks fed a diet high in egg white (2, 6). Oleic aci...
متن کاملBiotin labeling and quantitation of cell-surface proteins.
Cell surface receptors, such as transferrin receptors and MHC molecules, are internalized into the endocytic pathway and recycled to the plasma membrane. Previous assays used to measure endocytosis and recycling were cumbersome and often required radioactive reagents. This unit describes protocols that employ the combination of a cleavable biotin reagent to label surface molecules and a capture...
متن کاملBiotin-assisted folding of streptavidin on the yeast surface.
Yeast surface display allows heterologously expressed proteins to be targeted to the exterior of the cell wall and thus has a potential as a biotechnology platform. In this study, we report the successful display of functional streptavidin on the yeast surface. Streptavidin binds the small molecule biotin with high affinity (K(d) ≈ 10(-14)M) and is used widely in applications that require stabl...
متن کاملcomparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.
heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
15 صفحه اولBiotin-like activity of positional and stereoisomers of octadecenoic acids.
A number of microorganisms have been investigated which require some particular fatty acid in addition to biotin as a growth factor (l-6). On the other hand, a large group of organisms are able to utilize certain fatty acids in place of biotin in the medium (7-11). Axelrod and coworkers (12, 13) reported that the saponifiable fraction from blood plasma possesses high biotin activity. This extra...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1949
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)57020-4