Classical swine fever virus C strain A strain

of Classical swine fever virus.

classification The process of grouping biological entities such as viruses, on the basis of features they have in common, into a hierarchical series. The formal hierarchy proceeding from the largest to the smallest group includes kingdom, phylum, class, order, family, genus and species. In some classifications the group name cohort is inserted between class and order, and the group name tribe between family and genus. In the case of viruses, a taxonomic grouping above the level of family has not been developed, except for three orders (Caudovirales, Mononegavirales and Nidovirales). In addition, the question of what constitutes a virus species has been the subject of much heated debate.

van Regenmortel MHV (2000) In Virus Taxonomy, Seventh Report of the International Committee on Taxonomy of Viruses. London: Academic Press, p. 3

clathrin A scaffolding protein composed of three heavy chains (180 kDa) which associates with three light chains (34-36 kDa) to form a three-legged protein complex called a triskelion, which forms a basketlike network around a coated pit. During receptor-mediated endocytosis, a ligand on the virus surface binds to a plasma membrane receptor, followed by lateral movement of the ligand-receptor complex toward a clathrin-coated pit, which eventually invaginates into the cytoplasm, where a small endocytotic vesicle (the endosome) is pinched off the pit. Once the ligands have been internalized in an endosome, the receptor molecules are returned intact to the plasma membrane.

Clavelee virus Synonym for Sheeppox virus.

cleavage The cutting of nucleic acid or protein, usually enzymatically, at specific sites. See restriction endonucleases and protease.

Clo Mor virus (CMV) A strain of Sakhalin virus in the genus Nairovirus. Isolated from a tick, Ixodes (Ceratixodes) uriae, found under rocks in Cape Wrath, Scotland. Not reported to cause disease in humans.

clone 1. A population of identical recombinant DNA molecules all carrying the same inserted DNA sequence. 2. A colony of microorganisms containing a specific DNA fragment inserted into a vector. 3. A population of cells or organisms of identical genotype.

0 0

Post a comment