منابع مشابه
Intracellular Distribution of Enzymes
The technique of differential centrifugation permits the separation of cytoplasmic particles into fractions on the basis of both the size and the specific gravity of the particles. Customarily, such a separation has been into two fractions: (1) a large granule fraction known to consist mainly of mitochondria, and (2) a small granule (or microsome) fraction composed of particles below the limit ...
متن کاملIntracellular Proteolytic Enzymes of Liver
In all living tissues, protein constituents are continually being broken down within the body cells and protein decomposition products are excreted. If any or all of the processes of degradation occurring during life are the work of enzymes, we should expect to be able to demonstrate the existence of these enzymes in the tissues after death. The occurrence of such proteolytic enzymes was first ...
متن کاملThe Alteration of Intracellular Enzymes
1. The very large increase in catalase activity (Euler effect) which follows treatment of yeast cells with CHCl(3), UV and n-propanol is accompanied by highly significant changes in kinetic properties. With respect to the enzymatic decomposition of H(2)O(2), the thermodynamic constants of the activation process micro, DeltaHdouble dagger, DeltaSdouble dagger, DeltaFdouble dagger, decrease, foll...
متن کاملDe-ubiquitinating enzymes: intracellular signalling and disease.
Ubiquitination is now accepted as an important process for regulating intracellular signalling and the realization that many known signalling molecules exhibit E3 ligase activity has led to great strides in our understanding of how these pathways are regulated. However, as most of the de-ubiquitinating enzymes have as yet no identified substrate, little is known about their potential role in th...
متن کاملIntracellular Localization of Enzymes in Spleen
1. The intracellular distribution of nitrogen, DPNH cytochrome c reductase, succinic dehydrogenase, and cytochrome c oxidase has been studied in fractions derived by differential centrifugation from rat and guinea pig spleen homogenates. 2. In the spleens of each species, the nuclear fraction accounted for 40 to 50 per cent of the total nitrogen content of the homogenate, and the mitochondrial,...
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: Science
سال: 1909
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.30.767.344