Biomaterial Database

Isolation and preliminary characterization of 9-beta-d-arabinofuranosyladenine-resistant mutants of baby hamster cells. 1981

V L Chan, and P Juranka

A large number of 9-beta-D-arabinofuranosyladenine (araA) -resistant mutants of baby hamster kidney cells (BHK 21/Cl3) were isolated. These mutants can be grouped into three mechanistically distinct classes. All the mutants showed cross-resistance to deoxyadenosine (dAdo). The mechanism of resistance to araA and dAdo in the class I mutants can be attributed to a mutation to adenosine kinase (AK) deficiency. The class II mutants have normal levels of AK, adenosine deaminase, and deoxyadenosine kinase. These mutants also show resistance to 1-beta-D-arabinofuranosylcytosine (araC), and the mechanism of resistance is probably due to a mutation in the ribonucleotide reductase gene producing an enzyme that has an increased resistance to the inhibition by 9-beta-D-arabinofuranosyladenine 5'-triphosphate (araATP) and 2'-deoxyadenosine 5'-triphosphate (dATP). The class III mutants, unlike those of classes I and II, show extreme adenosine (Ado) sensitivity. The Ados/araAr/dAdor phenotypic properties can be attributed to a single mutation. Classes II and III are novel araA-resistant mutants.

UI	MeSH Term	Description	Entries
D007668	Kidney	Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.	Kidneys
D009154	Mutation	Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.	Mutations
D002460	Cell Line	Established cell cultures that have the potential to propagate indefinitely.	Cell Lines,Line, Cell,Lines, Cell
D003412	Cricetulus	A genus of the family Muridae consisting of eleven species. C. migratorius, the grey or Armenian hamster, and C. griseus, the Chinese hamster, are the two species used in biomedical research.	Hamsters, Armenian,Hamsters, Chinese,Hamsters, Grey,Armenian Hamster,Armenian Hamsters,Chinese Hamster,Chinese Hamsters,Grey Hamster,Grey Hamsters,Hamster, Armenian,Hamster, Chinese,Hamster, Grey
D003429	Cross Reactions	Serological reactions in which an antiserum against one antigen reacts with a non-identical but closely related antigen.	Cross Reaction,Reaction, Cross,Reactions, Cross
D003839	Deoxyadenosines	Adenosine molecules which can be substituted in any position, but are lacking one hydroxyl group in the ribose part of the molecule.	Adenine Deoxyribonucleosides,Adenylyldeoxyribonucleosides,Deoxyadenosine Derivatives,Deoxyribonucleosides, Adenine,Derivatives, Deoxyadenosine
D004351	Drug Resistance	Diminished or failed response of an organism, disease or tissue to the intended effectiveness of a chemical or drug. It should be differentiated from DRUG TOLERANCE which is the progressive diminution of the susceptibility of a human or animal to the effects of a drug, as a result of continued administration.	Resistance, Drug
D006224	Cricetinae	A subfamily in the family MURIDAE, comprising the hamsters. Four of the more common genera are Cricetus, CRICETULUS; MESOCRICETUS; and PHODOPUS.	Cricetus,Hamsters,Hamster
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D014740	Vidarabine	A nucleoside antibiotic isolated from Streptomyces antibioticus. It has some antineoplastic properties and has broad spectrum activity against DNA viruses in cell cultures and significant antiviral activity against infections caused by a variety of viruses such as the herpes viruses, the VACCINIA VIRUS and varicella zoster virus.	Adenine Arabinoside,Ara-A,Arabinofuranosyladenine,Arabinosyladenine,9-beta-Arabinofuranosyladenine,9-beta-D-Arabinofuranosyladenine,Ara A,Vira-A,alpha-Ara A,alpha-D-Arabinofuranosyladenine,beta-Ara A,9 beta Arabinofuranosyladenine,9 beta D Arabinofuranosyladenine,Arabinoside, Adenine,Vira A,ViraA,alpha Ara A,alpha D Arabinofuranosyladenine,beta Ara A