منابع مشابه
Enzymic inactivation of vaccinia virus with a bacterial protease.
pepsin (Dawson and McFarlane, 1948 ; Peter and Stoeckenius, 1954). For the purpose of finding out any enzyme to affect the surface structure of vaccinia virus under less radical conditions than with pepsin (pH 3.0), attempts were made to test various enzymes for the effect on the infectivity of the virus. Virus suspension was prepared from the homogenate of infected chorioallantoic membranes (C...
متن کاملEnzymic Catalysis
The time of greatest sensitivity to radiation is during the period of organogenesis in the first twelve weeks of human foetal development. Irradiation of the adult can cause life shortening or increased incidence of leukemia. The last chapter is concerned with the basis and origin of radiation protection standards, the hazards of nuclear power plants, high altitude supersonic aerospace travel, ...
متن کاملEnzymic degradation of heparin.
A sulphamidase and a sulphoesterase were isolated from adapted cells of Flavobacterium heparinum. These enzymes were partially purified from the 'heparinases' present in the bacterial extracts and characterized. The sulphamidase has a high specificity for glucosamine N-sulphate and glucosamine 2,6-disulphate. The activity decreases sharply with increasing molecular weight ofthe substrates teste...
متن کاملSimulations of enzymic reactions.
A fundamental problem in biology is the explanation of enzyme activity at the molecular level. The detailed origin of the rate acceleration of chemical reactions by enzymes is not fully understood, in spite of the immense amount of experimental work that has been done in this area [1,2]. T o describe an enzyme-catalysed reaction, its mechanism must be firmly established and intermediates must b...
متن کاملEnzymic catalysis of glucuronyl transfer.
Group transfer reactions catalyzed by enzymes have assumed a position of intense interest in contemporary enzymology (1). Well known examples of radicals capable of being transferred in such reactions are methyl, glycosyl, aeetyl, phosphoryl, pept,idyl, nucleosidyl, and nucleotidyl, in addition to the transport of hydrogen as seen with the familiar nuoleot.ide coenzymes. In this paper we wish t...
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: Acta Chemica Scandinavica
سال: 1964
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.18-0889