Biomaterial Database

Purification and buoyant density of infectious bovine rhinotracheitis virus. 1976

L T Talens, and Y C Zee

A purification scheme for infectious bovine rhinotracheitis virus utilizing rate-zonal centrifugation in a 10-40% potassium tartrate gradient was described. The density of IBRV in the potassium tartrate gradient was found to be 1.22 g/cm3. Electron microscopic examination of purified virus preparations revealed homogeneous populations of enveloped virions with minute projections on the envelope surface.

UI	MeSH Term	Description	Entries
D007242	Herpesvirus 1, Bovine	A species of VARICELLOVIRUS that causes INFECTIOUS BOVINE RHINOTRACHEITIS and other associated syndromes in CATTLE.	IBR-IPV Virus,Infectious Bovine Rhinotracheitis Virus,Infectious Pustular Vulvovaginitis Virus,Bovine Herpesvirus 1,Bovine Rhinotracheitis Virus, Infectious,Herpesvirus 1 (alpha), Bovine,Pustular Vulvovaginitis Virus, Infectious,IBR IPV Virus,IBR-IPV Viruses,Virus, IBR-IPV,Viruses, IBR-IPV
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
D002500	Centrifugation, Isopycnic	A technique used to separate particles according to their densities in a continuous density gradient. The sample is usually mixed with a solution of known gradient materials and subjected to centrifugation. Each particle sediments to the position at which the gradient density is equal to its own. The range of the density gradient is usually greater than that of the sample particles. It is used in purifying biological materials such as proteins, nucleic acids, organelles, and cell types.	Isopycnic Centrifugation