Biomaterial Database

Biochemical and genetic analysis of an acatalasic rho+ mutant of Saccharomyces cerevisiae. 1985

M Maqueda, and M T Gonzalez, and E Montoya

The previously described acatalasic rho+ strain R-6 has been studied in order to determine the type of mutation responsible for its inability to produce catalase. Induction conditions for catalase activity and temperature influence on the behaviour of this strain were assayed. Furthermore, haploid progeny arising from crosses between R-6 and other strains (rho+, rho- and rho0) was examined for catalase levels. From the data obtained a hypothetical interaction between nuclear and mitochondrial genomes in relation to catalase biosynthesis is discussed.

UI	MeSH Term	Description	Entries
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
D004790	Enzyme Induction	An increase in the rate of synthesis of an enzyme due to the presence of an inducer which acts to derepress the gene responsible for enzyme synthesis.	Induction, Enzyme
D004794	Enzyme Repression	The interference in synthesis of an enzyme due to the elevated level of an effector substance, usually a metabolite, whose presence would cause depression of the gene responsible for enzyme synthesis.	Repression, Enzyme
D012441	Saccharomyces cerevisiae	A species of the genus SACCHAROMYCES, family Saccharomycetaceae, order Saccharomycetales, known as "baker's" or "brewer's" yeast. The dried form is used as a dietary supplement.	Baker's Yeast,Brewer's Yeast,Candida robusta,S. cerevisiae,Saccharomyces capensis,Saccharomyces italicus,Saccharomyces oviformis,Saccharomyces uvarum var. melibiosus,Yeast, Baker's,Yeast, Brewer's,Baker Yeast,S cerevisiae,Baker's Yeasts,Yeast, Baker
D020642	Acatalasia	A rare autosomal recessive disorder resulting from the absence of CATALASE activity. Though usually asymptomatic, a syndrome of oral ulcerations and gangrene may be present.	Acatalasemia,Hypocatalasemia,Acatalasemia Japanese Type,Acatalasemia Swiss Type,Catalase Deficiency,Hypocatalasia,Takahara Disease,Takahara's Disease,Catalase Deficiencies,Deficiencies, Catalase,Deficiency, Catalase,Disease, Takahara,Disease, Takahara's,Japanese Type, Acatalasemia,Swiss Type, Acatalasemia,Takaharas Disease