Biomaterial Database

Subcellular localization of diamine oxidase in rabbit kidney cortex. 1983

C Sartori, and A M Bargagli, and M P Argento-Cerù

The intracellular localization of diamine oxidase (EC 1.4.3.6) in rabbit kidney cortex was studied. The distribution of diamine oxidase in the subcellular fractions, obtained by modifying the classical method of Wattiaux-De Coninck, S., Rutgeerts, M.T. and Wattiaux, R. (Biochim. Biophys. Acta (1965) 105, 446-459) demonstrated that this activity is concentrated (greater than 60%) in the microsomal fraction. Biochemical and morphological data indicate a 20-30% contamination of this fraction by plasma membrane and brush border fragments. Subfractionation of the microsomes, obtained by centrifuging in a continuous sucrose-Ficoll gradient (d 1.038-1.064) for 75 min, showed that diamine oxidase is concentrated in membrane deriving from the endoplasmic reticulum. In fact the bulk of diamine oxidase activity was recovered in a subfraction of the gradient which was shown both biochemically and morphologically to derive from the endoplasmic reticulum. The possible significance of this result is discussed.

UI	MeSH Term	Description	Entries
D007672	Kidney Cortex	The outer zone of the KIDNEY, beneath the capsule, consisting of KIDNEY GLOMERULUS; KIDNEY TUBULES, DISTAL; and KIDNEY TUBULES, PROXIMAL.	Cortex, Kidney
D007700	Kinetics	The rate dynamics in chemical or physical systems.
D008297	Male		Males
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D008861	Microsomes	Artifactual vesicles formed from the endoplasmic reticulum when cells are disrupted. They are isolated by differential centrifugation and are composed of three structural features: rough vesicles, smooth vesicles, and ribosomes. Numerous enzyme activities are associated with the microsomal fraction. (Glick, Glossary of Biochemistry and Molecular Biology, 1990; from Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed)	Microsome
D011817	Rabbits	A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes.	Belgian Hare,New Zealand Rabbit,New Zealand Rabbits,New Zealand White Rabbit,Rabbit,Rabbit, Domestic,Chinchilla Rabbits,NZW Rabbits,New Zealand White Rabbits,Oryctolagus cuniculus,Chinchilla Rabbit,Domestic Rabbit,Domestic Rabbits,Hare, Belgian,NZW Rabbit,Rabbit, Chinchilla,Rabbit, NZW,Rabbit, New Zealand,Rabbits, Chinchilla,Rabbits, Domestic,Rabbits, NZW,Rabbits, New Zealand,Zealand Rabbit, New,Zealand Rabbits, New,cuniculus, Oryctolagus
D002458	Cell Fractionation	Techniques to partition various components of the cell into SUBCELLULAR FRACTIONS.	Cell Fractionations,Fractionation, Cell,Fractionations, Cell
D002499	Centrifugation, Density Gradient	Separation of particles according to density by employing a gradient of varying densities. At equilibrium each particle settles in the gradient at a point equal to its density. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	Centrifugations, Density Gradient,Density Gradient Centrifugation,Density Gradient Centrifugations,Gradient Centrifugation, Density,Gradient Centrifugations, Density
D005260	Female		Females
D006631	Amine Oxidase (Copper-Containing)	A group of enzymes including those oxidizing primary monoamines, diamines, and histamine. They are copper proteins, and, as their action depends on a carbonyl group, they are sensitive to inhibition by semicarbazide.	Diamine Oxidase,Histaminase,Amine Oxidase, Copper-Containing,Copper Amine Oxidase,Diaminobenzidine Oxidase,Semicarbazide-Sensitive Amine Oxidase,Xylylene Diamine Oxidase,Amine Oxidase, Copper,Amine Oxidase, Copper Containing,Amine Oxidase, Semicarbazide-Sensitive,Copper-Containing Amine Oxidase,Diamine Oxidase, Xylylene,Oxidase, Copper Amine,Oxidase, Copper-Containing Amine,Oxidase, Diamine,Oxidase, Diaminobenzidine,Oxidase, Semicarbazide-Sensitive Amine,Oxidase, Xylylene Diamine,Semicarbazide Sensitive Amine Oxidase