PASSAGE OF RADIOACTIVITY BETWEEN PROTEIN FRACTIONS OF A HEN OVIDUCT HOMOGENATE
نویسندگان
چکیده
منابع مشابه
Passage of radioactive amino acids through nonprotein fractions of hen oviduct during incorporation into protein.
The hen oviduct has been observed to lose virtually all its ability to incorporate free ammo acid into protein upon homogenation (2). In many instances, however, homogenation of a prelabeled mince, followed by removal of most of the radioactivity, and subsequent incubation, has led to a larger quantity of radioactivity contained in the protein fraction than was present at the start or early in ...
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Enzymatic Sulfation of Mucopolysaccharides in Hen Oviduct
An enzymatic reaction has been identified in the isthmus of hen oviduct in which sulfate is transferred from 3’-phosphoadenosine 5’-phosphosulfate to mucopolysaccharide acceptors (1). From studies of the reaction with monosaccharides and oligosaccharides as model acceptors (‘2) it was concluded that one or more enzymes in the preparations employed catalyze a direct transfer of sulfate from PAPS...
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Membrane preparations from rough endoplasmic reticulum of hen oviduct resemble those of dog pancreas in their capacity to translocate nascent secretory proteins into membrane vesicles present during cell-free protein synthesis. As with the dog membranes, the precursor form of human placental lactogen is transported into the vesicles and processed to the native secretory form by an associated "s...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1957
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)63661-6