ON A DEOXYRIBONUCLEASE FROM GERMINATING BARLEY
نویسندگان
چکیده
منابع مشابه
Uptake of Glycyiglycine by the Scuteilum of Germinating Barley
The scuteUa separated from germinating barley grains (Hordewn vagare L. cv. Himalaya) took up the dipeptide 14Clglycylglycine (Gly-Gly) rapidly from incubation media. The pH optimum of the process was about 4.5, and the rate of uptake conformed to Michaelis-Menten kinetics with an apparent Km of 2.3mm and V. of41 imole gram-l hour-'. The uptake was strongly inhibited by dinitrophenol and cyanid...
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Activity measurements and Northem blot hybridizations were used to study the temporal and spatial expression of carboxypeptidase I in germinating grains of barley (Hordeum vulgare L. cv Himalaya). In the resting grain no carboxypeptidase I activity was found in the aleurone layer, scutellum, or starchy endosperm. During germination high levels of enzyme activity appeared in the scutellum and in...
متن کاملUptake of proline by the scutellum of germinating barley grain.
Scutella separated from germinating grains of barley (Hordeum vulgare L. cv Himalaya) took up 1 millimolar l-[(14)C]proline at an initial rate of about 6.5 micromoles gram(-1) fresh weight hour(-1) (pH 5, 30 degrees C). The uptake had a pH optimum at 5. The bulk of the uptake (93%) was via carrier-mediated active transport. All of the 19 l-amino acids tested at 10 millimolar concentration inhib...
متن کاملLocalization of carboxypeptidase I in germinating barley grain.
Activity measurements and Northern blot hybridizations were used to study the temporal and spatial expression of carboxypeptidase I in germinating grains of barley (Hordeum vulgare L. cv Himalaya). In the resting grain no carboxypeptidase I activity was found in the aleurone layer, scutellum, or starchy endosperm. During germination high levels of enzyme activity appeared in the scutellum and i...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1954
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)65469-9