Journal of Microbiology

Kyunghoon Kim

9 Articles

A Protective Role of Methionine-R-Sulfoxide Reductase against Cadmium in Schizosaccharomyces pombe: Chang-Jin Lim , Hannah Jo , Kyunghoon Kim; J. Microbiol. 2014;52(11):976-981. Published online May 30, 2014; DOI: https://doi.org/10.1007/s12275-014-3512-7

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The Schizosaccharomyces pombe cells harboring the methionine- R-sulfoxide reductase (MsrB)-overexpressing recombinant plasmid pFMetSO exhibited better growth than vector control cells, when shifted into fresh medium containing cadmium chloride (abbreviated as Cd). Although both groups of cells contained enhanced reactive oxygen species (ROS) and nitric oxide (NO) levels in the presence of Cd, ROS and NO levels were significantly lower in the S. pombe cells harboring pFMetSO than in vector control cells. Conversely, the S. pombe cells harboring pFMetSO possessed higher total glutathione (GSH) levels and a greater reduced/oxidized GSH ratio than vector control cells under the same conditions.

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Pleurotus pulmonarius Strain: Arsenic(III)/Cadmium(II) Accumulation, Tolerance, and Simulation Application in Environmental Remediation
Yuhui Zhang, Xiaohong Chen, Ling Xie
International Journal of Environmental Research and Public Health.2023; 20(6): 5056. CrossRef
Impact of cadmium and nickel on ion homeostasis in the yeast Schizosaccharomyces pombe
Miroslava Pozgajova, Alica Navratilova, Julius Arvay, Hana Duranova, Anna Trakovicka
Journal of Environmental Science and Health, Part B.2020; 55(2): 166. CrossRef
A methionine-R-sulfoxide reductase, OsMSRB5, is required for rice defense against copper toxicity
Tengwei Xiao, Mengmeng Mi, Changyong Wang, Meng Qian, Yahua Chen, Luqing Zheng, Hongsheng Zhang, Zhubing Hu, Zhenguo Shen, Yan Xia
Environmental and Experimental Botany.2018; 153: 45. CrossRef
Identification and Characterization of a Novel Methionine Sulfoxide Reductase B Gene (AccMsrB) fromApis cerana cerana(Hymenoptera: Apidae)
Feng Liu, Zhihong Gong, Weixing Zhang, Ying Wang, Lanting Ma, Hongfang Wang, Xingqi Guo, Baohua Xu
Annals of the Entomological Society of America.2015; 108(4): 575. CrossRef

Overexpression of Bacterioferritin Comigratory Protein (Bcp) Enhances Viability and Reduced Glutathione Level in the Fission Yeast Under Stress: Ga-Young Kang , Eun-Hee Park , Kyunghoon Kim , Chang-Jin Lim; J. Microbiol. 2009;47(1):60-67. Published online February 20, 2009; DOI: https://doi.org/10.1007/s12275-008-0077-3

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Abstract PDF

The structural gene encoding bacterioferritin comigratory protein (Bcp) was amplified using PCR from the genomic DNA of Schizosaccharomyces pombe, and transferred into the shuttle vector pRS316 to generate the recombinant plasmid pBCP10. The bcp+ mRNA level in the pBCP10-containing yeast cells was significantly higher than that in the control yeast cells, indicating that the cloned gene is functioning. The S. pombe cells harboring the plasmid pBCP10 exhibited higher survival on the solid minimal media with hydrogen peroxide, tert-BOOH or cadmium than the control yeast cells. They also exhibited enhanced cellular viability in the liquid media containing the stressful agents. The increased viabilities of the fission yeast cells harboring the plasmid pBCP10 were also obtained with 0.4% glucose or 0.4% sucrose as a sole carbon source, and nitrogen starvation, compared with those of the control yeast cells. The total glutathione (GSH) content and total GSH/GSSG ratio were significantly higher in the yeast cells harboring the plasmid pBCP10 than in the control yeast cells. In brief, the S. pombe Bcp plays a protective role in the defensive response to oxidative stress possibly via up-regulation of total and reduced glutathione levels.

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Microbially derived glutathione from Eubacterium rectale alleviates oxidative stress and promotes intestinal epithelial recovery
Tanner G. Richie, Hallie Wiechman, Brooke Vogt, Carson Ingold, Leah Heeren, Abigail Kamke, Sophia Pogranichniy, Kourtney Monk, Trey Summers, Qinghong Ran, Soumyadev Sarkar, Brandon L. Plattner, Ashley M. Sidebottom, Eugene B. Chang, Sonny T. M. Lee
Microbiome.2026;[Epub] CrossRef
A unique thioredoxin reductase plays defensive roles against oxidative, nitrosative and nutritional stresses in Schizosaccharomyces pombe
Dam-Jung Ji, Chang-Jin Lim, Kyunghoon Kim
The Korean Journal of Microbiology.2016; 52(1): 1. CrossRef
Thermoresistant properties of bacterioferritin comigratory protein against high temperature stress in Schizosaccharomyces pombe
In Wang Ryu, Su Hee Lee, Hye-Won Lim, Kisup Ahn, Kwanghark Park, Jae-Hoon Sa, Kyung Jin Jeong, Chang-Jin Lim, Kyunghoon Kim
The Korean Journal of Microbiology.2016; 52(4): 398. CrossRef
Role of bacterioferritin comigratory protein and glutathione peroxidase-reductase system in promoting bentazone tolerance in a mutant of Synechococcus elongatus PCC7942
Palash Kumar Das, Suvendra Nath Bagchi
Protoplasma.2012; 249(1): 65. CrossRef
Proteomic profiling of Rhizobium tropiciPRF 81: identification of conserved and specific responses to heat stress
Douglas Fabiano Gomes, Jesiane Stefânia da Silva Batista, Aline Luiza Schiavon, Diva Souza Andrade, Mariangela Hungria
BMC Microbiology.2012;[Epub] CrossRef
Distinct functional roles of peroxiredoxin isozymes and glutathione peroxidase from fission yeast, Schizosaccharomyces pombe
Ji-Sun Kim, Mi-Ae Bang, Song-Mi Lee, Ho-Zoon Chae, Kang-Hwa Kim
BMB Reports .2010; 43(3): 170. CrossRef
Thiol and Sulfenic Acid Oxidation of AhpE, the One-Cysteine Peroxiredoxin from Mycobacterium tuberculosis: Kinetics, Acidity Constants, and Conformational Dynamics
Martín Hugo, Lucía Turell, Bruno Manta, Horacio Botti, Gisele Monteiro, Luis E. S. Netto, Beatriz Alvarez, Rafael Radi, Madia Trujillo
Biochemistry.2009; 48(40): 9416. CrossRef

Carbon Source-Dependent Regulation of the Schizosaccharomyces pombe pbh1 Gene: Su-Jung Kim , Nam-Chul Cho , In Wang Ryu , Kyunghoon Kim , Eun-Hee Park , Chang-Jin Lim; J. Microbiol. 2006;44(6):689-693.; DOI: https://doi.org/2454 [pii]

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Abstract PDF: Pbh1, from the fission yeast Schizosaccharomyces pombe, is a baculoviral inhibitor of apoptosis (IAP) repeat (BIR) domain-containing protein. Its unique encoding gene was previously found to be regulated by nitric oxide and nitrogen starvation. In the current work, the Pbh1-lacZ fusion gene was used to elucidate the transcriptional regulation of the pbh1 gene under various carbon sources. When fermentable carbon sources, such as glucose (at a low concentration of 0.2%), sucrose (2.0%) and lactose (2.0%), were the sole carbon source, the synthesis of β-galactosidase from the Pbh1-lacZ fusion gene was reasonably enhanced. However, the induction by these fermentable carbon sources was abolished in the Pap1-negative S. pombe cells, implying that this type of induction of the pbh1 gene is mediated by Pap1. Ethanol (2.0%), a nonfermentable carbon source, was also able to enhance the synthesis of β-galactosidase from the fusion gene in wild-type cells but not in Pap1-negative cells. The results indicate that the S. pombe pbh1 gene is up-regulated under metabolic oxidative stress in a Pap1-dependent manner.

Transcriptional Analysis and Pap1-Dependence of the Unique Gene Encoding Thioredoxin Reductase from the Fission Yeast: Hyun-Jung Kang , Sung-Min Hong , Byung-Chul Kim , Kyunghoon Kim , Eun-Hee Park , Chang-Jin Lim; J. Microbiol. 2006;44(1):35-41.; DOI: https://doi.org/2339 [pii]

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Abstract PDF: The unique gene encoding thioredoxin reductase (TrxR) was previously cloned and characterized from the fission yeast Schizosaccharomyces pombe, and its expression was induced by oxidative stress. To elucidate the regulatory mechanism of the S. pombe TrxR gene, three fusion plasmids were generated using polymerase chain reaction: pYUTR20, pYUTR30, and pYUTR40. Plasmid pYUTR20 has an upstream region of 891 base pairs, pYUTR30 has 499 in this region, and pYUTR40 has an 186 bp upstream region. Negatively acting sequence is located between ‒1,526 ~ ‒891 bp upstream of the gene. The upstream sequence, responsible for the induction of TrxR by menadione (MD), is situated on the ‒499 ~ ‒186 bp region, which is also required for TrxR induction by mercuric chloride. The same region also appeared to be required for Pap1-mediated transcriptional regulation of the TrxR gene, which contains the two plausible Pap1 binding sites, TTACGAAT and TTACGCGA. Consistently, basal and inducible expression of the TrxR gene was markedly lower in the Pap1-negative TP108-3C cells than in wild-type yeast cells. In summary, up-regulation of the S. pombe TrxR gene is mediated by Pap1 via the transcriptional motif( s) located on the ‒499 ~ ‒186 bp region.

The Schizosaccharomyces pombe Gene Encoding [gamma]-Glutamyl Transpeptidase I Is Regulated by Non-fermentable Carbon Sources and Nitrogen Starvation: Hong-Gyum Kim , Hey-Jung Park , Hyun-Jung Kang , Hye-Won Lim , Kyunghoon Kim , Eun-Hee Park , Kisup Ahn , Chang-Jin Lim; J. Microbiol. 2005;43(1):44-48.; DOI: https://doi.org/2139 [pii]

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Abstract PDF: In our previous study, the first structural gene (GGTI) encoding g-glutamyl transpeptidase was cloned and characterized from the fission yeast Schizosaccharomyces pombe, and its transcription, using the GGTI-lacZ fusion gene, containing the 1,085 bp upstream region from the translational initiation point, was found to be enhanced by sodium nitroprusside and L-buthionine-(S,R)-sulfoximine (BSO). In the present work, regulation of the GGTI gene was further elucidated. Non-fermentable carbon sources, such as acetate and ethanol, markedly enhanced the synthesis of [beta]-galactosidase from the GGTI-lacZ fusion gene. However, its induction by non-fermentable carbon sources appeared to be independent of the presence of the Pap1 protein. Nitrogen starvation also gave rise to induction of GGTI gene expression in a Pap1-independent manner. The three additional fusion plasmids, carrying 754, 421 and 156 bp regions, were constructed. The sequence responsible for the induction by non-fermentable carbon sources and nitrogen starvation was identified to exist within a -421 bp region of the GGTI gene. Taken together, the S. pombe GGTI gene is regulated by non-fermentable carbon sources and nitrogen starvation.

Transcriptional Regulation of the Schizosaccharomyces pombe Gene Encoding Glutathione S-Transferase I by a Transcription Factor Pap1: Hong-Gyum Kim , Byung-Chul Kim , Kyunghoon Kim , Eun-Hee Park , Chang-Jin Lim; J. Microbiol. 2004;42(4):353-356.; DOI: https://doi.org/2099 [pii]

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Abstract PDF: In a previous study, a gst gene was isolated from the fission yeast Schizosaccharomyces pombe. This gene was dubbed gst I, and was characterized using the gstI-lacZ fusion plasmid pYSH2000. In this work, four additional fusion plasmids, pYSHSD1, pYSHSD2, pYSHSD3 and pYSHSD4, were constructed, in order to carry (respectively) 770, 551, 358 and 151 bp upstream regions from the translational initiation point. The sequence responsible for induction by aluminum, mercury and hydrogen peroxide was located in the range between -1,088 and -770 bp upstream of the S. pombe gst I gene. The same region was identified to contain the nucleotide sequence responsible for regulation by Pap1, and has one putative Pap1 binding site, TTACGTAT, located in the range between -954 ~ -947 bp upstream of the gst I gene. Negatively acting sequences are located between -1,088 and -151 bp. These findings imply that the Pap1 protein is involved in basal and inducible transcription of the gst I gene in the fission yeast S. pombe.

Transcriptional Regulation of the Gene Encoding g-Glutamylcysteine Synthetase from the Fission Yeast Schizosaccharomyces pombe: Su-Jung Kim , Hong-Gyum Kim , Byung-Chul Kim , Kyunghoon Kim , Eun-Hee Park , Chang-Jin Lim; J. Microbiol. 2004;42(3):233-238.; DOI: https://doi.org/2083 [pii]

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Abstract PDF: Transcriptional regulation of the Schizosaccharomyces pombe [gamma]-glutamylcysteine synthetase (GCS) gene was examined using the two GCS-lacZ fusion plasmids pUGCS101 and pUGCS102, which harbor 607 bp and 447 bp upstream regions, respectively. The negatively-acting sequence was located in the -607 ~ -447 bp upstream region of the GCS gene. The upstream sequence responsible for induction by menadione (MD) and L-buthionine-(S, R)-sulfoximine (BSO) resides in the -607 ~ -447 bp region, whereas the sequence which codes for nitric oxide induction is located within the -447 bp region, measured from the translational initiation point. Carbon source-dependent regulation of the GCS gene appeared to be dependent on the nucleotide sequence within -447 bp region. The transcription factor Pap1 is involved in the induction of the GCS gene by MD and BSO, but not by nitric oxide. Induction of the GCS gene occurring due to low glucose concentration does not depend on the presence of Pap1. These data imply that induction by MD and BSO may be mediated by the Pap1 binding site, probably located in the -607 ~ -447 region, and also that the nitric oxide-mediated regulation of the S. pombe GCS gene may share a similar mechanism with its carbon-dependent induction.

Cloning of Genomic DNAs of Trametes versicolor Acting as Autonomously Replicating Sequences in Saccharomyces cerevisiae: Sora An , Kyoung Phil Park , Hyoung-Tae Choi , Kyu-Joong Kim , Kyunghoon Kim; J. Microbiol. 2002;40(3):245-247.

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Abstract PDF: A genomic DNA library of the fungus Trametes versicolor was constructed in a yeast integration vector which contains the URA3 gene of the budding yeast Saccharomyces cerevisiae and the gene responsible for hygromycin B resistance, and fragments acting as autonomously replicating sequences (ARSes) in the budding yeast were identified from the genomic DNA library. Sixteen recombinant plasmids from the library transformed the budding yeast Saccharomyces cerevisiae to Ura^+ at high frequencies. They were maintained stably under selective conditions, but were gradually lost from yeast cells at different rates under nonselective conditions, indicating that they contain eukaryotic origins of DNA replication and exist as extrachromosomal plasmids. Base sequences of four ARS DNAs among the 16 cloned fragments revealed that all of the four contain at least one 11 bp [(A/T)TTTA(T/C)(A/G)TTT(A/T)] consensus sequence of the budding yeast ARS.

Cloning and Regulation of Schizosaccharomyces pombe Gene Encoding Ribosomal Protein S20: Yoon-Jong Lee , Kyunghoon Kim , Eun-Hee Park , Ki-Sup Ahn , Daemyung Kim , Chang-Jin Lim; J. Microbiol. 2001;39(1):31-36.

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Abstract PDF: A cDNA clone encoding the ribosomal protein S20 has been isolated from the Schizosaccharomyces pombe cDNA library by colony hybridization. The insert contained in the original plasmid pYJ10 was transferred into shuttle vector pRS316 to generate plasmid pYJ11. The cDNA insert of plasmid pYJ11 contains 484 nucleotides and encodes a protein of 118 amino acids with a calculated mass of 13,544 daltons. The deduced amino acid sequence of S. pombe ribosomal protein S20 is very homologous with fruit fly, rat, and budding yeast counterparts. It is also homologous with Xenopus S22 ribosomal protein. S. pombe ribosomal protein S20 appears to be relatively hydrophobic except the C-terminal region. The 728 bp upstream region of the S20 gene was amplified from chromosomal DNA and transferred into the BamHI/EcoRI site of the promoterless b-galactosidase gene of the vector YEp357R, which resulted in fusion plasmid pYS20. The synthesis of b-galactosidase from the fusion plasmid appeared to be the highest in the mid-exponential phase. The S. pombe cells with the fusion plasmid grown at 35oC gave lower b-galactosidase activity than the cells grown at 30oC. Computer analysis showed the consensus sequence CAGTCACA in the upstream regions of various ribosomal protein genes in S. pombe, which would be involved in the coordinated expression of small ibosomal proteins.

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