Yeast xylose (aldose) reductases are members of the aldo-keto reductase family of enzymes which are widely distributed in a variety of other organisms. In yeasts, these enzymes catalyse the first step of xylose metabolism where xylose is converted to xylitol. In the past 16 years, xylose reductases
Structure and function of the yeast vacuole and its role in autophagy
โ Scribed by Michael Thumm
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 407 KB
- Volume
- 51
- Category
- Article
- ISSN
- 1059-910X
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โฆ Synopsis
The vacuole of the yeast Saccharomyces cerevisiae plays an important role in pH- and ion-homeostasis, and is used as a storage compartment for ions. Another important function of the vacuole, especially during nutrient limitation, is the bulk degradation of proteins and even whole organelles. To carry these proteins into the vacuolar lumen, sophisticated transport pathways have evolved. In this review, starvation-induced autophagy and its relationship to the specific cytoplasm to vacuole targeting (cvt-) pathway of proaminopeptidase I is discussed. A further topic is the specific vacuolar uptake and degradation of peroxisomes in Pichia pastoris cells via micro- and macroautophagy.
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