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Zygosaccharomyces sp. is an industrially important yeast for the production traditional fermented foods in Japan. At present, however, there is no easy method for mating Zygosaccharomyces sp. strains in the laboratory; furthermore, little is known about the expression of mating‐type‐specific genes in this yeast. Here, mating was observed when Zygosaccharomyces sp. was subjected to nitrogen‐starvation...
Posttranslational modifications play a crucial role in regulating gene expression. Among these modifications, arginine methylation has recently attracted tremendous attention due to its role in multiple cellular functions. This review discusses the recent advances that have established arginine methylation as a major player in determining cytoplasmic messenger RNA (mRNA) fate. We specifically focus...
Regulation of mRNA steady‐state levels is important in controlling gene expression particularly in response to environmental stimuli. This allows cells to rapidly respond to environment changes. The highly conserved nonsense‐mediated mRNA decay (NMD) pathway was initially identified as a pathway that degrades aberrant mRNAs. NMD is now recognized as a pathway with additional functions including precisely...
N‐linked glycosylation is one type of posttranslational modification that proteins undergo during expression. The following describes the effects of N‐linked glycosylation on high‐level membrane protein expression in yeast with an emphasis on Saccharomyces cerevisiae. N‐linked glycosylation is highlighted here as an important consideration when preparing membrane protein gene constructs for expression...
Human kidney anion exchanger 1 (kAE1) facilitates simultaneous efflux of bicarbonate and absorption of chloride at the basolateral membrane of α‐intercalated cells. In these cells, kAE1 contributes to systemic acid–base balance along with the proton pump v‐H+‐ATPase and the cytosolic carbonic anhydrase II. Recent electron microscopy analyses in yeast demonstrate that heterologous expression of several...
The cell wall is a dynamic organelle which is tightly controlled for cell morphology, viability, and pathogenesis. It was previously shown that exocytosis is involved in the secretion of some components and enzymes of the cell wall. However, how the secretory pathway affects the cell wall integrity and assembly remains unclear. Here we show that the secretory pathway mutant (sec) cells were sensitive...
All living cells, including yeast cells, are challenged by different types of stresses in their environments and must cope with challenges such as heat, chemical stress, or oxidative damage. By reversibly adjusting the physiology while maintaining structural and genetic integrity, cells can achieve a competitive advantage and adapt environmental fluctuations. The yeast Saccharomyces cerevisiae has...
In this study, we analysed the intracellular fatty acid profiles of Komagataella phaffii during methylotrophic growth. K. phaffii grown on methanol had significantly lower total fatty acid contents in the cells compared with glucose‐grown cells. C18 and C16 fatty acids were the predominant fatty acids in K. phaffii, although the contents of odd‐chain fatty acids such as C17 fatty acids were also relatively...
Our previous study revealed that N‐acetyl‐l‐cysteine (NAC) could enhance the secretion of recombinant proteins by Pichia pastoris, but the corresponding molecular mechanisms are still unclear. In the present study, we explored whether other thiols have a similar action on the secretion of recombinant human serum albumin and porcine follicle‐stimulating hormone fusion protein (HSA‐pFSHβ), to reveal...
Protein tagging is an effective method for characterizing a gene of interest. Tagging can be accomplished in vivo in Saccharomyces cerevisiae by chromosomal integration of a PCR‐amplified cassette. However, common tagging cassettes are not suitable for in situ N‐terminal tagging when we aim to preserve the gene's endogenous promoter. Existing methods require either two rounds of homologous recombination...
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