Old yellow enzyme confers resistance of Hansenula polymorpha towards allyl alcohol
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چکیده
منابع مشابه
Pexophagy in Hansenula polymorpha.
In the yeast Hansenula polymorpha the development and turnover of peroxisomes is readily achieved by manipulation of the cultivation conditions. The organelles massively develop when the cells are incubated in the presence of methanol as the sole source of carbon and energy. However, they are rapidly and selectively degraded when methanol-grown cells are placed at conditions of repression of me...
متن کاملIsolation of mutants of Hansenula polymorpha defective in the assembly of octameric alcohol oxidase.
Alcohol oxidase (AO) is a peroxisomal enzyme that catalyses the first step in methanol metabolism in yeast. Monomeric, inactive AO protein is synthesised in the cytosol and subsequently imported into peroxisomes, where the enzymatically active, homo-octameric form is found. The mechanisms involved in AO octamer assembly are largely unclear. Here we describe the isolation of Hansenula polymorpha...
متن کاملMethanol oxidation and assimilation in Hansenula polymorpha
The metabolism of methanol was monitored in whole cells of the methylotrophic yeast Hansenula polymorpha by using [13C]methanol and n.m.r. in vivo. The main products observed under normal conditions were trehalose and glycerol, whereas cells that were starved before exposure to [13C]methanol also accumulated glutamate, glutamine and alanine; formate was also more prominent in spectra from starv...
متن کاملConferring Temperature-Conditional Allyl Alcohol Resistance
Selection for allyl alcohol resistance in respiratory incompetent yeast is a highly specific method for isolating functional mutations at ADHI, the gene coding for the cytoplasmic alcohol dehydrogenase, ADHI. Because of the nature of this selection scheme, the ADHI activity of such mutants is retained, but the kinetic characteristics of the enzymes are altered. The high specificity for targetin...
متن کاملHansenula polymorpha Vam7p is required for macropexophagy.
We have analyzed the functions of two vacuolar t-SNAREs, Vam3p and Vam7p, in peroxisome degradation in the methylotrophic yeast Hansenula polymorpha. A Hp-vam7 mutant was strongly affected in peroxisome degradation by selective macropexophagy as well as non-selective microautophagy. Deletion of Hp-Vam3p function had only a minor effect on peroxisome degradation processes. Both proteins were loc...
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ژورنال
عنوان ژورنال: Current Genetics
سال: 2002
ISSN: 0172-8083,1432-0983
DOI: 10.1007/s00294-002-0321-z