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Eun Jung Thak 2 Articles
Functional analysis of Mpk1-mediated cell wall integrity signaling pathway in the thermotolerant methylotrophic yeast Hansenula polymorpha
Hyunah Kim , Eun Jung Thak , Ji Yoon Yeon , Min Jeong Sohn , Jin Ho Choo , Jeong-Yoon Kim , Hyun Ah Kang
J. Microbiol. 2018;56(1):72-82.   Published online January 4, 2018
DOI: https://doi.org/10.1007/s12275-018-7508-6
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  • 10 Crossref
AbstractAbstract PDF
Understanding the characteristics and regulation mechanisms of cell wall integrity (CWI) in yeast is important not only for basic research but also in biotechnological applications. We found significantly different CWIs in two representative strains of the thermotolerant methylotrophic yeast Hansenula polymorpha. Compared to the A16 strain (classified as Ogataea polymorpha), the DL1-L strain (classified as Ogataea parapolymorpha) has a thinner cell wall that was found to be more fragile following long-term cultivation and more sensitive to zymolyase. To gain a deeper insight into this difference, we compared the characteristics of the Mpk1pmediated CWI signaling pathway in the two strains. While a DL1-L mutant deficient in Mpk1p (mpk1Δ) showed severe growth retardation at both normal and high growth temperatures and in the presence of cell-wall disrupting agents, the A16 mpk1Δ mutant displayed only a mild defect in cell growth. Sorbitol effect on rescuing growth retardation was different in the two mpk1Δ strains, which could partly be ascribed to subtle differences in the activation of HOG pathway. Among the cell wall disruptors evaluated, only caffeine clearly increased phosphorylation of Mpk1p in DL1-L, but not in A16. A transcriptome analysis of the DL1-L strain revealed that caffeine significantly increased the expression of a subset of cell-wall related genes in an Mpk1p-dependent manner, but not the expected Rlm1-target genes. Taken together, our data support an essential role for Mpk1p in maintaining CWI in H. polymorpha, although the requirement for Mpk1p and its regulation under diverse stress conditions varies depending on the strain background.

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    Shaokai Li, Lixia Pan, Bin Zhang, Jie Bao
    Biochemical Engineering Journal.2026; 234: 110293.     CrossRef
  • Thermotolerant yeasts promoting climate-resilient bioproduction
    Roghayeh Shirvani, Maryam Babaei, Motahare Baladi, Matthias G Steiger, Mohammad Barshan-tashnizi
    FEMS Yeast Research.2025;[Epub]     CrossRef
  • Optimization, characterization, comparison of self-assembly VLP of capsid protein L1 in yeast and reverse vaccinology design against human papillomavirus type 52
    Moh Egy Rahman Firdaus, Apon Zaenal Mustopa, Nurlaili Ekawati, Sheila Chairunnisa, Rosyida Khusniatul Arifah, Ai Hertati, Shasmita Irawan, Anika Prastyowati, Arizah Kusumawati, Maritsa Nurfatwa
    Journal of Genetic Engineering and Biotechnology.2023; 21(1): 68.     CrossRef
  • Characterization, expression patterns and functional analysis of PcMPK12 gene in Phytophthora capsici
    Tong-tong Zhu, Sheng-han Xiang, Lei Yang, Fang Tang, Wei Li, Ying-bao Liu, Wen-xiu Sun
    European Journal of Plant Pathology.2022; 164(4): 525.     CrossRef
  • The cell wall and the response and tolerance to stresses of biotechnological relevance in yeasts
    Ricardo A. Ribeiro, Nuno Bourbon-Melo, Isabel Sá-Correia
    Frontiers in Microbiology.2022;[Epub]     CrossRef
  • The damage and tolerance mechanisms of Phaffia rhodozyma mutant strain MK19 grown at 28 °C
    Li-Li Miao, Shuang Chi, Ting-Ting Hou, Zhi-Pei Liu, Ying Li
    Microbial Cell Factories.2021;[Epub]     CrossRef
  • Molecular characterization of Hsf1 as a master regulator of heat shock response in the thermotolerant methylotrophic yeast Ogataea parapolymorpha
    Jin Ho Choo, Su-Bin Lee, Hye Yun Moon, Kun Hwa Lee, Su Jin Yoo, Keun Pil Kim, Hyun Ah Kang
    Journal of Microbiology.2021; 59(2): 151.     CrossRef
  • Pleiotropic Effects of Caffeine Leading to Chromosome Instability and Cytotoxicity in Eukaryotic Microorganisms
    Woo-Hyun Chung
    Journal of Microbiology and Biotechnology.2021; 31(2): 171.     CrossRef
  • Short bZIP homologue of sulfur regulator Met4 from Ogataea parapolymorpha does not depend on DNA‐binding cofactors for activating genes in sulfur starvation
    Su Jin Yoo, Min Jeong Sohn, Da Min Jeong, Hyun Ah Kang
    Environmental Microbiology.2020; 22(1): 310.     CrossRef
  • PlMAPK10, a Mitogen-Activated Protein Kinase (MAPK) in Peronophythora litchii, Is Required for Mycelial Growth, Sporulation, Laccase Activity, and Plant Infection
    Liqun Jiang, Junjian Situ, Yi Zhen Deng, Lang Wan, Dandan Xu, Yubin Chen, Pinggen Xi, Zide Jiang
    Frontiers in Microbiology.2018;[Epub]     CrossRef
Structural analysis of N-/O-glycans assembled on proteins in yeasts
Eun Jung Thak , Jungho Kim , Dong-Jik Lee , Jeong Yoon Kim , Hyun Ah Kang
J. Microbiol. 2018;56(1):11-23.   Published online January 4, 2018
DOI: https://doi.org/10.1007/s12275-018-7468-x
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  • 1 Download
  • 23 Crossref
AbstractAbstract PDF
Protein glycosylation, the most universal and diverse posttranslational modification, can affect protein secretion, stability, and immunogenicity. The structures of glycans attached to proteins are quite diverse among different organisms and even within yeast species. In yeast, protein glycosylation plays key roles in the quality control of secretory proteins, and particularly in maintaining cell wall integrity. Moreover, in pathogenic yeasts, glycans assembled on cell-surface glycoproteins can mediate their interactions with host cells. Thus, a comprehensive understanding of protein glycosylation in various yeast species and defining glycan structure characteristics can provide useful information for their biotechnological and clinical implications. Yeast-specific glycans are a target for glyco-engineering; implementing human-type glycosylation pathways in yeast can aid the production of recombinant glycoproteins with therapeutic potential. The virulenceassociated glycans of pathogenic yeasts could be exploited as novel targets for antifungal agents. Nowadays, several glycomics techniques facilitate the generation of species- and strain-specific glycome profiles and the delineation of modified glycan structures in mutant and engineered yeast cells. Here, we present the protocols employed in our laboratory to investigate the N- and O-glycan chains released from purified glycoproteins or cell wall mannoproteins in several yeast species.

Citations

Citations to this article as recorded by  
  • Conserved Golgi nucleoside diphosphatases drive protein glycosylation and virulence in Fusarium graminearum
    Soobin Shin, Yejin Choi, Thuy Thi Thanh Phan, Seonwoo Song, Nahyun Lee, Jiyeun Park, Sieun Kim, Hosung Jeon, Jung-Eun Kim, Kyunghun Min, Hun Kim, Gyung Ja Choi, Hyun Ah Kang, Dae-Geun Song, Hokyoung Son
    Phytopathology Research.2026;[Epub]     CrossRef
  • Evolutionary unique N-glycan-dependent protein quality control system plays pivotal roles in cellular fitness and extracellular vesicle transport in Cryptococcus neoformans
    Catia Mota, Kiseung Kim, Ye Ji Son, Eun Jung Thak, Su-Bin Lee, Ju-El Kim, Jeong-Kee Yoon, Min-Ho Kang, Heeyoun Hwang, Yong-Sun Bahn, J Andrew Alspaugh, Hyun Ah Kang
    eLife.2025;[Epub]     CrossRef
  • Integrative glycomic analysis reveals the crucial role of protein glycosylation in fungal pathogenesis
    Heeji Moon, Eun Jung Thak, Yejin Choi, Sieun Kim, Jiyeun Park, Nahyun Lee, Soobin Shin, Hosung Jeon, Jessica Winarto, Soyoung Choi, Ji Young Shin, Jung-Eun Kim, Dae-Geun Song, Hun Kim, Gyung Ja Choi, Hyun Ah Kang, Hokyoung Son, Jin-Rong Xu
    PLOS Pathogens.2025; 21(7): e1013325.     CrossRef
  • Evolutionary unique N-glycan-dependent protein quality control system plays pivotal roles in cellular fitness and extracellular vesicle transport in Cryptococcus neoformans
    Catia Mota, Kiseung Kim, Ye Ji Son, Eun Jung Thak, Su-Bin Lee, Ju-El Kim, Jeong-Kee Yoon, Min-Ho Kang, Heeyoun Hwang, Yong-Sun Bahn, J Andrew Alspaugh, Hyun Ah Kang
    eLife.2025;[Epub]     CrossRef
  • Protein Expression Platforms and the Challenges of Viral Antigen Production
    Jamie R. V. Sookhoo, Zachary Schiffman, Aruna Ambagala, Darwyn Kobasa, Keith Pardee, Shawn Babiuk
    Vaccines.2024; 12(12): 1344.     CrossRef
  • Novel Botrytis cinerea Zn(II)2Cys6 Transcription Factor BcFtg1 Enhances the Virulence of the Gray Mold Fungus by Promoting Organic Acid Secretion and Carbon Source Utilization
    Song Yang, Jiao Sun, Aoran Xue, Guihua Li, Chenhao Sun, Jie Hou, Qing-Ming Qin, Mingzhe Zhang
    Journal of Agricultural and Food Chemistry.2024; 72(34): 18824.     CrossRef
  • Komagataella phaffii as a Platform for Heterologous Expression of Enzymes Used for Industry
    Tamara M. Khlebodarova, Natalia V. Bogacheva, Andrey V. Zadorozhny, Alla V. Bryanskaya, Asya R. Vasilieva, Danil O. Chesnokov, Elena I. Pavlova, Sergey E. Peltek
    Microorganisms.2024; 12(2): 346.     CrossRef
  • Proteomic Analysis of Cell Wall Proteins with Various Linkages in Fusarium graminearum
    Heeji Moon, Kyunghun Min, Jessica Winarto, Soobin Shin, Hosung Jeon, Dae-Geun Song, Hokyoung Son
    Journal of Agricultural and Food Chemistry.2024; 72(11): 6028.     CrossRef
  • Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2017–2018
    David J. Harvey
    Mass Spectrometry Reviews.2023; 42(1): 227.     CrossRef
  • Rna-Seq Based Transcriptomic Analysis of the Non-Conventional Yeast Spathaspora Passalidarum During Melle-Boinot Cell Recycle in Xylose-Glucose Mixtures
    Thiago Neitzel, Cleilton Santos Lima, Eduardo Hafemann, Douglas Antonio Alvaredo Paixão, Joaquim Martins Junior, Gabriela Felix Persinoti, Leandro Vieira dos Santos, jaciane ienczak
    SSRN Electronic Journal .2022;[Epub]     CrossRef
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  • Pushing and pulling proteins into the yeast secretory pathway enhances recombinant protein secretion
    Richard J. Zahrl, Roland Prielhofer, Özge Ata, Kristin Baumann, Diethard Mattanovich, Brigitte Gasser
    Metabolic Engineering.2022; 74: 36.     CrossRef
  • Extension of O -Linked Mannosylation in the Golgi Apparatus Is Critical for Cell Wall Integrity Signaling and Interaction with Host Cells in Cryptococcus neoformans Pathogenesis
    Eun Jung Thak, Ye Ji Son, Dong-Jik Lee, Hyunah Kim, Jung Ho Kim, Su-Bin Lee, Yu-Byeong Jang, Yong-Sun Bahn, Connie B. Nichols, J. Andrew Alspaugh, Hyun Ah Kang, Michael Lorenz
    mBio.2022;[Epub]     CrossRef
  • Metabolic labeling of glycans with isotopic glucose for quantitative glycomics in yeast
    Ji-Yeon Kim, Woo Hong Joo, Dong-Soo Shin, Yong-Ill Lee, Chin Fen Teo, Jae-Min Lim
    Analytical Biochemistry.2021; 621: 114152.     CrossRef
  • Yeast-produced RBD-based recombinant protein vaccines elicit broadly neutralizing antibodies and durable protective immunity against SARS-CoV-2 infection
    Jinkai Zang, Yuanfei Zhu, Yu Zhou, Chenjian Gu, Yufang Yi, Shuxia Wang, Shiqi Xu, Gaowei Hu, Shujuan Du, Yannan Yin, Yalei Wang, Yong Yang, Xueyang Zhang, Haikun Wang, Feifei Yin, Chao Zhang, Qiang Deng, Youhua Xie, Zhong Huang
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  • What makes Komagataella phaffii non-conventional?
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    FEMS Yeast Research.2021;[Epub]     CrossRef
  • Water Kefir and Derived Pasteurized Beverages Modulate Gut Microbiota, Intestinal Permeability and Cytokine Production In Vitro
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  • Genome-wide functional analysis of phosphatases in the pathogenic fungus Cryptococcus neoformans
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  • NEGATIVE ION MASS SPECTROMETRY FOR THE ANALYSIS OF N‐LINKED GLYCANS
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    Mass Spectrometry Reviews.2020; 39(5-6): 586.     CrossRef
  • Yeast synthetic biology for designed cell factories producing secretory recombinant proteins
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    FEMS Yeast Research.2020;[Epub]     CrossRef
  • Core N -Glycan Structures Are Critical for the Pathogenicity of Cryptococcus neoformans by Modulating Host Cell Death
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