Yoon Ki-Seok 尹基石

… Alternative Names

Ki-Seok Yoon 尹基石

Less

Researcher Number	50701497
Other IDs
Affiliation (Current)	2022: 九州大学, カーボンニュートラル・エネルギー国際研究所, 准教授
Affiliation (based on the past Project Information) *help	2015 – 2020: 九州大学, カーボンニュートラル・エネルギー国際研究所, 准教授
Review Section/Research Field	Principal Investigator Bio-related chemistry / Basic Section 37010:Bio-related chemistry
Keywords	Principal Investigator 水素酸化反応 / ヒドロゲナーゼ / 酸素耐性酵素 / 燃料電池 / 電子伝達系 / ゲノム解析 / タンパク質結晶解析 / 生化学的な特性解析 / 水素酸化活性 / 酸素安定性 … More / 生化学的な特性 / 電子伝達 / タンパク質結晶構造解析 / 水素燃料電池 / エネルギー変換系 / ギ酸デヒドロゲナーゼ / 生体触媒 / 水素発生 / 二酸化炭素の水素化 / 水素生成 / エネルギー変換反応 / 融合型酵素反応 / 水素 / 二酸化炭素 / ギ酸 / 人工融合酵素 Less

Hydrogen production from formate by a hydride biocatalystPrincipal Investigator
- Principal Investigator
  
  Yoon Ki-Seok
- Project Period (FY)
  2018 – 2020
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 37010:Bio-related chemistry
- Research Institution
  Kyushu University
Elucidating electron transfer mechanism of new [NiFe]hydrogenase surpassing platinum catalystPrincipal Investigator
- Principal Investigator
  
  Ki-Seok Yoon
- Project Period (FY)
  2015 – 2017
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Bio-related chemistry
- Research Institution
  Kyushu University

All 2020 2019 2018 2017 2016 2015

All Journal Article Presentation

[Journal Article] Biochemical and Structural Characterization of a Thermostable Dps Protein with His-Type Ferroxidase Centers and Outer Metal-Binding Sites2020
- Author(s)
  Minato Takuo、Teramoto Takamasa、Kakuta Yoshimitsu、Ogo Seiji、Yoon Ki‐Seok
- Journal Title
  
  FEBS Open Bio
  
  Volume: - Pages: 1219-1229
- DOI
  10.1002/2211-5463.12837
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18J00191, KAKENHI-PROJECT-18H02091
[Journal Article] [NiFe], [FeFe], and [Fe] hydrogenase models from isomers2020
- Author(s)
  Ogo, Seiji; Kishima, Takahiro; Yatabe, Takeshi; Miyazawa, Keishi; Yamasaki, Ryunosuke; Matsumoto, Takahiro; Ando, Tatsuya; Kikkawa, Mitsuhiro; Isegawa, Miho; Yoon, Ki-Seok; Hayami, Shinya
- Journal Title
  
  Science Advances
  
  Volume: 6
- DOI
  10.1126/sciadv.aaz8181
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18H02091, KAKENHI-PROJECT-18K05297
[Journal Article] A NiRhS fuel cell catalyst ? lessons from hydrogenase2020
- Author(s)
  Ogo, Seiji;* Ando, Tatsuya; Thi Minh, Le Tu; Mori, Yuki; Matsumoto, Takahiro; Yatabe, Takeshi; Yoon, Ki-Seok; Sato, Yukio; Hibino, Takashi; Kaneko, Kenji.
- Journal Title
  
  Chem. Commun.
  
  Volume: 56 Pages: 11787-11790
- DOI
  10.1039/d0cc04789a
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K05503, KAKENHI-PROJECT-20K21091, KAKENHI-PROJECT-18H01710, KAKENHI-PROJECT-18H02091
[Journal Article] Glyceraldehyde-3-phosphate Dehydrogenase of Citrobacter sp. S-77 is Post-translationally Modified by CoA (Protein CoAlation) under Oxidative Stress2019
- Author(s)
  Tsuji, Kohsei; Yoon, Ki-Seok; Ogo, Seiji.
- Journal Title
  
  FEBS Open Bio
  
  Volume: 9 Pages: 53-73
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-18H02091
[Journal Article] A MnI Model for the Photoinhibited Species of Oxygen-Evolving Complex.2018
- Author(s)
  Yatabe, Takeshi ; Tokunaga, Taisuke ; Matsumoto, Kikkawa, Mitsuhiro ; Tatsuya ; Yoon, Ki-Seok ; Ogo, Seiji.
- Journal Title
  
  Chemistry Letters
  
  Volume: 47 Issue: 1 Pages: 34-36
- DOI
  10.1246/cl.170869
- NAID
  130006302110
- ISSN
  0366-7022, 1348-0715
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16K05727, KAKENHI-PROJECT-15K05566, KAKENHI-PROJECT-26000008, KAKENHI-PROJECT-18H02091
[Journal Article] Redox-dependent conformational changes of a proximal [4Fe-4S] cluster in Hyb-type [NiFe]-hydrogenase to protect the active site from O_22018
- Author(s)
  Noor N. D. M., Matsuura H., Nishikawa K., Tai H., Hirota S., Kim J., Kang J., Tateno M., Yoon K-S., Ogo S., Kubota S., Shomura Y., Higuchi Y.
- Journal Title
  
  Chem. Commun.
  
  Volume: 54 Issue: 87 Pages: 12385-12388
- DOI
  10.1039/c8cc06261g
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-18H05516, KAKENHI-PROJECT-18H02091, KAKENHI-PROJECT-26000008
[Journal Article] Oxidation of Guanosine Monophosphate with 02 via a Ru-peroxo Complex in Water2018
- Author(s)
  Takenaka, Makoto ; Kikkawa, Mitsuhiro ; Matsumoto, Takahiro ; Yatabe, Takeshi ; Ando, Tatsuya ; Yoon, Ki-Seok ; Ogo, Seiji
- Journal Title
  
  Chem. Asian J.
  
  Volume: 13 Pages: 3180-3184
- DOI
  10.1002/asia.201801267
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18H02091, KAKENHI-PROJECT-18J12028, KAKENHI-PROJECT-16K05727, KAKENHI-PROJECT-26000008
[Journal Article] Multifunctional Catalysts for H2O2-resistant Hydrogen Fuel Cells.2018
- Author(s)
  Mori, Yuki; Ando, Tatsuya; Matsumoto, Takahiro; Yatabe, Takeshi; Kikkawa, Mitsuhiro; Yoon, Ki-Seok; Ogo, Seiji
- Journal Title
  
  Angew. Chem. Int. Ed.
  
  Volume: 57 Pages: 15792-15796
- DOI
  10.1002/anie.201810270
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18H02091, KAKENHI-PROJECT-16K05727
[Journal Article] Acetyl-CoA Production by Encapsulated Pyruvate Ferredoxin Oxidoreductase in Alginate Hydrogels.2017
- Author(s)
  Takenaka, Makoto ; Yoon, Ki-Seok ; Matsumoto, Takahiro ; Ogo, Seiji.
- Journal Title
  
  Bioresour. Technol.
  
  Volume: 227 Pages: 279-285
- DOI
  10.1016/j.biortech.2016.12.051
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K05566, KAKENHI-PROJECT-26000008
[Journal Article] Nitrogen Fixation Genes and Nitrogenase Activity of the Non- Heterocystous Cyanobacterium Thermoleptolyngbya sp. 0-77.2017
- Author(s)
  Yoon, Ki-Seok ; Nguyen, Nga T. ; Tran, Kien Trung ; Tsuji, Kohsei ; Ogo, Seiji.
- Journal Title
  
  Microb. Environ.
  
  Volume: 32 Issue: 4 Pages: 324-329
- DOI
  10.1264/jsme2.me17015
  10.1264/jsme2.ME17015
- NAID
  130006286273
- ISSN
  1342-6311, 1347-4405
- Language
  English
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K05566, KAKENHI-PROJECT-26000008
[Journal Article] Structural basis of the redox switches in the NAD+-reducing soluble [NiFe]-hydrogenase2017
- Author(s)
  Y. Shomura, M, Taketa, H. Nakashima, H. Tai, H. Nakagawa, Y. Ikeda, Y, M. Ishii, Y. Igarashi, H. Nishihara, K.-S. Yoon, S. Ogo, Y. Higuchi
- Journal Title
  
  Science
  
  Volume: 537 Pages: 928-932
- DOI
  10.1126/science.aan4497
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K05566, KAKENHI-PROJECT-16K17936, KAKENHI-PROJECT-26000008
[Journal Article] Mechanistic Investigation of the Formation of H2 from HCOOH with a Dinuclear Ru Model Complex for Formate Hydrogen Lyase.2017
- Author(s)
  Tokunaga, Taisuke ; Yatabe, Takeshi ; Matsumoto, Takahiro ; Ando, Tatsuya ; Yoon, Ki-Seok ; Ogo, Seiji.
- Journal Title
  
  Sci. Tech. Adv. Mater.
  
  Volume: 18 Pages: 870-876
- DOI
  10.1080/14686996.2017.1379857
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-16K05727, KAKENHI-PROJECT-15K05566, KAKENHI-PROJECT-26000008
[Journal Article] Mechanistic Insight into Switching between H2- or 02-Activation by Simple Ligand Effects of [NiFe] hydrogenase Models.2017
- Author(s)
  Matsumoto, Takahiro ; Kishima, Takahiro ; Yatabe, Takeshi ; Yoon, Ki-Seok ; Ogo, Seiji.
- Journal Title
  
  Organometallics
  
  Volume: 36 Pages: 3883-3890
- DOI
  10.1021/acs.organomet.7b00471
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16K05727, KAKENHI-PROJECT-15K05566, KAKENHI-PROJECT-26000008
[Journal Article] Structure and Reactivity of a Ru-based Peroxide Complex as a Reactive Intermediate of 02-Promoted Activation of a C-H Bond in a Cp* Ligand.2017
- Author(s)
  Yatabe, Takeshi ; Kishima, Takahiro ; Nagano, Hideaki ; Matsumoto, Takahiro ; Yamasaki, Mikio ; Yoon, Ki-Seok ; Ogo, Seiji.
- Journal Title
  
  Chemistry Letters
  
  Volume: 46 Issue: 1 Pages: 74-76
- DOI
  10.1246/cl.160909
- NAID
  130005308316
- ISSN
  0366-7022, 1348-0715
- Language
  English
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K17832, KAKENHI-PROJECT-15K05566, KAKENHI-PROJECT-16K05727, KAKENHI-PROJECT-26000008
[Journal Article] A Fusion of Biomimetic Fuel and Solar Cells Based on Hydrogenase, Photosystem II, and Cytochrome c Oxidase.2017
- Author(s)
  Kikkawa, Mitsuhiro ; Yatabe, Takeshi ; Matsumoto, Takahiro ; Yoon, Ki-Seok ; Suzuki, Kazuhau ; Enomoto, Takao ; Kaneko, Kenji ; Ogo, Seiji.
- Journal Title
  
  ChemCatChem
  
  Volume: 9 Pages: 4024-4028
- DOI
  10.1002/cctc.201700995
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16K05727, KAKENHI-PROJECT-15K05566, KAKENHI-PROJECT-26000008
[Journal Article] One Model, Two Enzymes : Activation of Hydrogen and Carbon Monoxide.2017
- Author(s)
  Ogo, Seiji ; Mori, Yuki ; Ando, Tatsuya ; Matsumoto, Takahiro ; Yatabe, Takeshi ; Yoon, Ki-Seok ; Hayashi, Hideki ; Asano, Masashi.
- Journal Title
  
  Angew. Chem. Int. Ed.
  
  Volume: 56 Pages: 9723-9726
- DOI
  10.1002/anie.201704864
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16K05727, KAKENHI-PROJECT-15K05566, KAKENHI-PROJECT-26000008
[Journal Article] Improved Purification, Crystallization and Crystallographic Study of Hyd-2 Type [NiFe]-hydrogenase from Citrobacter sp. S-772016
- Author(s)
  Muhd Noor, N.D.; Nishikawa, Koji; Nishihara, Hirofumi; Yoon, Ki-Seok; Ogo, Seiji; Higuchi, Yoshiki
- Journal Title
  
  Acta Crystallogr. F
  
  Volume: F72 Pages: 53-58
- DOI
  10.1107/s2053230x15024152
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-15K05566, KAKENHI-PROJECT-25291038
[Journal Article] Biochemical Characterization of a Bifunctional Acetaldehyde-Alcohol Dehydrogenase Purified from a Facultative Anaerobic Bacterium Citrobacter sp. S-772016
- Author(s)
  Tsuji, Kohsei ; Yoon, Ki-Seok ; Ogo, Seiji
- Journal Title
  
  Journal of Bioscience and Bioengineering
  
  Volume: 121 Issue: 3 Pages: 253-258
- DOI
  10.1016/j.jbiosc.2015.06.019
- NAID
  110010051475
- ISSN
  1389-1723
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-15K05566, KAKENHI-PROJECT-26000008
[Journal Article] Structural Differences of Oxidized Iron-Sulfur and Nickel-Iron Cofactors in O2-Tolerant and O2-Sensitive Hydrogenases Studied by X-ray Absorption Spectroscopy2015
- Author(s)
  Sigfridsson, Kajsa G. V.; Leidel, Nils; Sanganas, Oliver; Chernev, Petko; Lenz, Oliver; Yoon, Ki-Seok; Nishihara, Hirofumi; Parkin, Alison; Armstrong, Fraser A.; Dementin, Sébastien; Rousset, Marc; L. De Lacey, Antonio; Haumann, Michael
- Journal Title
  
  Biochim. Biophys. Acta
  
  Volume: 1847 Pages: 162-170
- DOI
  10.1016/j.bbabio.2014.06.011
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05566
[Journal Article] Crystallization and Preliminary X-ray Analysis of the NAD+-reducing [NiFe] hydrogenase from Hydrogenophilus thermoluteolus TH-12015
- Author(s)
  Taketa M, Nakagawa H, Habukawa M, Osuka H, Kihira K, Komori H, Shibata N, Ishii M, Igarashi Y, Nishihara H, Yoon KS, Ogo S, Shomura Y, Higuchi Y.
- Journal Title
  
  Acta Crystallogr. Sect. F Struct. Biol. Commun.
  
  Volume: 71 Pages: 96-99
- DOI
  10.1107/s2053230x14026521
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PUBLICLY-25107522, KAKENHI-PROJECT-25291038, KAKENHI-PROJECT-15K05566
[Presentation] New insights of naturally occurring O2-tolerant [NiFe]hydrogenase2018
- Author(s)
  Ki-Seok Yoon, Seiji Ogo
- Organizer
  International Congress on Pure & Applied Chemistry 2018 (ICPAC2018)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18H02091
[Presentation] Structural genes and hydrogen activation of [NiFe]hydrogenase from Citrobacter sp. S-772018
- Author(s)
  Ki-Seok Yoon, Seiji Ogo
- Organizer
  The 70th The Society for Biotechnology, Annual Meeting 2018
- Data Source
  KAKENHI-PROJECT-18H02091
[Presentation] New [NiFe]hydrogenases running between H2 and O2 molecules2018
- Author(s)
  Ki-Seok Yoon, Seiji Ogo
- Organizer
  The 20th Biocatalysis Symposium of Japan
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18H02091
[Presentation] New insights of naturally occurring O2-tolerant [NiFe]hydrogenase2018
- Author(s)
  Ki-Seok Yoon
- Organizer
  International Congress on Pure & Applied Chemistry (ICPAC) 2018
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05566
[Presentation] Redox-regulation of glyceraldehyde-3-phosphate dehydrogenase from Citrobacter sp. S-77 by coenzyme A2018
- Author(s)
  Kohsei Tsuji, Ki-Seok Yoon, Seiji Ogo
- Organizer
  The 91st Annual Meeting of the Japanese Biochemical Society
- Data Source
  KAKENHI-PROJECT-18H02091
[Presentation] Exploring new biocatalysts for hydrogen activation2018
- Author(s)
  Ki-Seok Yoon, Seiji Ogo
- Organizer
  The 4th Korea-Japan Symposium on Hydrogen in Materials
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18H02091
[Presentation] A diversity of Naturally Occurring O2-tolerant [NiFe]hydrogenase2018
- Author(s)
  Ki-Seok Yoon, Tahahiro Matsumoto, Seiji Ogo
- Organizer
  International Conference on Coordination Chemistry 2018 (ICCC2018)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-18H02091
[Presentation] 固定化ピルビン酸-フェレドキシン酸化還元酵素によるアセチル-CoA生成2017
- Author(s)
  竹中慎, 尹基石, 松本崇弘, 小江誠司
- Organizer
  第69回日本生物工学会大会
- Data Source
  KAKENHI-PROJECT-15K05566
[Presentation] グリセルアルデヒド-3-リン酸脱水素酵素の補酵素AによるS-チオール化2017
- Author(s)
  辻幸盛、尹基石、小江誠司
- Organizer
  2017年度生命科学系学会合同年次大会
- Data Source
  KAKENHI-PROJECT-15K05566
[Presentation] iochemical and phylogenetic studies of Hyd-2 type O2-tolerant [NiFe]hydrogenase2016
- Author(s)
  Ki-Seok Yoon
- Organizer
  Gordon Research Conference: Metallocofactors
- Place of Presentation
  Stonehill College in Easton, MA, United States
- Year and Date
  2016-06-12
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-15K05566
[Presentation] Biochemical characterization of Acetaldehyde-alcohol dehydrogenase from Citrobacter sp. S-772016
- Author(s)
  Kohsei Tsuji, Ki-Seok Yoon, Seiji Ogo
- Organizer
  6th CSJ Chemistry Festa
- Place of Presentation
  Tokyo, Japan
- Year and Date
  2016-11-14
- Data Source
  KAKENHI-PROJECT-15K05566
[Presentation] Insight into phylogenetic diversity of O2-tolerant [NiFe]hydrogenase2015
- Author(s)
  尹基石
- Organizer
  Gordon Research Conference: Enzyme, Coenzyme & Metabolic Pathways
- Place of Presentation
  Waterville Valley, NH, United States
- Year and Date
  2015-07-12
- Data Source
  KAKENHI-PROJECT-15K05566
[Presentation] 新規ヒドロゲナーゼの特性と燃料電池用触媒への応用2015
- Author(s)
  尹基石
- Organizer
  微生物学の新たな発展、ゲノムから機能・実用に関する九州シンポジウム
- Place of Presentation
  ANAホリデイ・インリゾート宮崎、宮﨑
- Year and Date
  2015-12-05
- Invited
- Data Source
  KAKENHI-PROJECT-15K05566
[Presentation] Citrobacter sp. S-77由来のアセトアルデヒド-アルコール脱水素酵素の精製と生化学的特性評価2015
- Author(s)
  辻幸盛、尹基石、小江誠司
- Organizer
  微生物学の新たな発展、ゲノムから機能・実用に関する九州シンポジウム
- Place of Presentation
  ANAホリデイ・インリゾート宮崎、宮﨑
- Year and Date
  2015-12-05
- Data Source
  KAKENHI-PROJECT-15K05566

1. HIROTA Shun

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
2. SATO Yukio

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
3. 小江誠司

# of Collaborated Projects: 0 results

# of Collaborated Products: 12 results
4. 松本崇弘

# of Collaborated Projects: 0 results

# of Collaborated Products: 9 results
5. 太虎林

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
6. 樋口芳樹

# of Collaborated Projects: 0 results

# of Collaborated Products: 4 results
7. 庄村康人

# of Collaborated Projects: 0 results

# of Collaborated Products: 3 results
8. 谷田部剛史

# of Collaborated Projects: 0 results

# of Collaborated Products: 2 results
9. 竹中慎

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Yoon Ki-Seok 尹 基石

Ki-Seok Yoon 尹 基石

Research Projects

Research Products

Co-Researchers

Hydrogen production from formate by a hydride biocatalystPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Elucidating electron transfer mechanism of new [NiFe]hydrogenase surpassing platinum catalystPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Biochemical and Structural Characterization of a Thermostable Dps Protein with His-Type Ferroxidase Centers and Outer Metal-Binding Sites2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] [NiFe], [FeFe], and [Fe] hydrogenase models from isomers2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A NiRhS fuel cell catalyst ? lessons from hydrogenase2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Glyceraldehyde-3-phosphate Dehydrogenase of Citrobacter sp. S-77 is Post-translationally Modified by CoA (Protein CoAlation) under Oxidative Stress2019

Author(s)

Journal Title

Data Source

[Journal Article] A MnI Model for the Photoinhibited Species of Oxygen-Evolving Complex.2018

Author(s)

Journal Title

DOI

NAID

ISSN

Language

Data Source

[Journal Article] Redox-dependent conformational changes of a proximal [4Fe-4S] cluster in Hyb-type [NiFe]-hydrogenase to protect the active site from O_22018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Oxidation of Guanosine Monophosphate with 02 via a Ru-peroxo Complex in Water2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Multifunctional Catalysts for H2O2-resistant Hydrogen Fuel Cells.2018

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Acetyl-CoA Production by Encapsulated Pyruvate Ferredoxin Oxidoreductase in Alginate Hydrogels.2017

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Nitrogen Fixation Genes and Nitrogenase Activity of the Non- Heterocystous Cyanobacterium Thermoleptolyngbya sp. 0-77.2017

Author(s)

Journal Title

DOI

NAID

ISSN

Language

Data Source

[Journal Article] Structural basis of the redox switches in the NAD+-reducing soluble [NiFe]-hydrogenase2017

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Mechanistic Investigation of the Formation of H2 from HCOOH with a Dinuclear Ru Model Complex for Formate Hydrogen Lyase.2017

Author(s)

Journal Title

Yoon Ki-Seok 尹基石

Ki-Seok Yoon 尹基石