Journal Articles
	
	
				- Medium Chain Length Polyhydroxyalkanoate Production by Engineered Pseudomonas gessardii Using Acetate-formate as Carbon Sources
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		Woo Young Kim, Seung-Jin Kim, Hye-Rin Seo, Yoonyong Yang, Jong Seok Lee, Moonsuk Hur, Byoung-Hee Lee, Jong-Geol Kim, Min-Kyu Oh		
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			J. Microbiol. 2024;62(7):569-579.   Published online May 3, 2024		
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							DOI: https://doi.org/10.1007/s12275-024-00136-x
					
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						 Abstract Abstract PDF PDF
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		Production of medium chain length polyhydroxyalkanoate (mcl-PHA) was attempted using Pseudomonas gessardii NIBRBAC000509957, which was isolated from Sunchang, Jeollabuk-do, Republic of Korea (35°24'27.7"N, 127°09'13.0"E) and effectively utilized acetate and formate as carbon sources. We first evaluated the utilization of acetate as a carbon source, revealing optimal growth at 5 g/L acetate. Then, formate was supplied to the acetate minimal medium as a carbon source to enhance cell growth. After overexpressing the acetate and formate assimilation pathway enzymes, this strain grew at a significantly higher rate in the medium. As this strain naturally produces PHA, it was further engineered metabolically to enhance mcl-PHA production. The engineered strain produced 0.40 g/L of mcl-PHA with a biomass content of 30.43% in fed-batch fermentation.
Overall, this strain can be further developed to convert acetate and formate into valuable products.	
		
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			Citations Citations to this article as recorded by    
- Formate-driven photoautotrophic growth and biopolymer storage in anaerobic purple bacteria
 Mohammad Adib Ghazali Abdul Rahman, Bronwyn Laycock, Steven Pratt, Damien J. Batstone
 Bioresource Technology.2025; 434: 132753.     CrossRef
- Sulphide and oleic acid synergism in accelerating mcl-PHA biopolymer production in Pseudomonas aeruginosa MCC 5300 by modulating electron transport system
 Raghavendra Paduvari, Divyashree Somashekara
 Biochemistry and Biophysics Reports.2025; 44: 102286.     CrossRef
- Unlocking efficient polyhydroxyalkanoate production by Gram-positive Priestia megaterium using waste-derived feedstocks
 Xinyi Bai, Libo Xu, Kang Li, Guangbao Zhang, Mengjun Zhang, Yi Huang
 Microbial Cell Factories.2025;[Epub]     CrossRef
 
 
	
	
				- Enhancement of the solubility of recombinant proteins by fusion with a short-disordered peptide
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		Jun Ren , Suhee Hwang , Junhao Shen , Hyeongwoo Kim , Hyunjoo Kim , Jieun Kim , Soyoung Ahn , Min-gyun Kim , Seung Ho Lee , Dokyun Na 		
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			J. Microbiol. 2022;60(9):960-967.   Published online July 14, 2022		
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							DOI: https://doi.org/10.1007/s12275-022-2122-z
					
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						 Abstract Abstract PDF PDF
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		In protein biotechnology, large soluble fusion partners are
widely utilized for increased yield and solubility of recombinant
proteins. However, the production of additional large
fusion partners poses an additional burden to the host, leading
to a decreased protein yield. In this study, we identified
two highly disordered short peptides that were able to increase
the solubility of an artificially engineered aggregationprone
protein, GFP-GFIL4, from 0.6% to 61% (D3-DP00592)
and 46% (D4-DP01038) selected from DisProt database. For
further confirmation, the peptides were applied to two insoluble
E. coli proteins (YagA and YdiU). The peptides also
enhanced solubility from 52% to 90% (YagA) and from 27%
to 93% (YdiU). Their ability to solubilize recombinant proteins
was comparable with strong solubilizing tags, maltosebinding
protein (40 kDa) and TrxA (12 kDa), but much smaller
(< 7 kDa) in size. For practical application, the two peptides
were fused with a restriction enzyme, I-SceI, and they increased
I-SceI solubility from 24% up to 75%. The highly disordered
peptides did not affect the activity of I-SceI while I-SceI fused
with MBP or TrxA displayed no restriction activity. Despite
the small size, the highly disordered peptides were able to
solubilize recombinant proteins as efficiently as conventional
fusion tags and did not interfere with the function of recombinant
proteins. Consequently, the identified two highly disordered
peptides would have practical utility in protein biotechnology
and industry.	
		
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			Citations Citations to this article as recorded by    
- A review on computational models for predicting protein solubility
 Teerapat Pimtawong, Jun Ren, Jingyu Lee, Hyang-Mi Lee, Dokyun Na
 Journal of Microbiology.2025; 63(1): e:2408001.     CrossRef
- Synthetic intrinsically disordered protein fusion tags that enhance protein solubility
 Nicholas C. Tang, Jonathan C. Su, Yulia Shmidov, Garrett Kelly, Sonal Deshpande, Parul Sirohi, Nikhil Peterson, Ashutosh Chilkoti
 Nature Communications.2024;[Epub]     CrossRef
- Biosynthesis of Indigo Dyes and Their Application in Green Chemical and Visual Biosensing for Heavy Metals
 Yan Guo, Shun-Yu Hu, Can Wu, Chao-Xian Gao, Chang-Ye Hui
 ACS Omega.2024; 9(31): 33868.     CrossRef
- Functional small peptides for enhanced protein delivery, solubility, and secretion in microbial biotechnology
 Hyang-Mi Lee, Thi Duc Thai, Wonseop Lim, Jun Ren, Dokyun Na
 Journal of Biotechnology.2023; 375: 40.     CrossRef
- Directed Evolution of Soluble α-1,2-Fucosyltransferase Using Kanamycin Resistance Protein as a Phenotypic Reporter for Efficient Production of 2'-Fucosyllactose
 Jonghyeok Shin, Seungjoo Kim, Wonbeom Park, Kyoung Chan Jin, Sun-Ki Kim, Dae-Hyuk Kweon
 Journal of Microbiology and Biotechnology.2022; 32(11): 1471.     CrossRef
- Effects of spray drying, freeze drying, and vacuum drying on physicochemical and nutritional properties of protein peptide powder from salted duck egg white
 Tianyin Du, Jicheng Xu, Shengnan Zhu, Xinjun Yao, Jun Guo, Weiqiao Lv
 Frontiers in Nutrition.2022;[Epub]     CrossRef
 
 
	
	
				- Cr(VI) removal from aqueous solution by thermophilic denitrifying bacterium Chelatococcus daeguensis TAD1 in the presence of single and multiple heavy metals
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		Han Li , Shaobin Huang , Yongqing Zhang 		
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			J. Microbiol. 2016;54(9):602-610.   Published online August 31, 2016		
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							DOI: https://doi.org/10.1007/s12275-016-5295-5
					
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						 Abstract Abstract PDF PDF
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		Cr(VI) pollution is increasing continuously as a result of ongoing
industrialization. In this study, we investigated the
thermophilic denitrifying bacterium Chelatococcus daeguensis
TAD1, isolated from the biofilm of a biotrickling filter used
in nitrogen oxides (NOX) removal, with respect to its ability
to remove Cr(VI) from an aqueous solution. TAD1 was capable
of reducing Cr(VI) from an initial concentration of
10 mg/L to non-detectable levels over a pH range of 7–9 and
at a temperature range of 30–50°C. TAD1 simultaneously
removed both Cr(VI) and NO3
−-N at 50°C, when the pH
was 7 and the initial Cr(VI) concentration was 15 mg/L.
The reduction of Cr(VI) to Cr(III) correlated with the growth
metabolic activity of TAD1. The presence of other heavy
metals (Cu, Zn, and Ni) inhibited the ability of TAD1 to remove
Cr(VI). The metals each individually inhibited Cr(VI)
removal, and the extent of inhibition increased in a cooperative
manner in the presence of a combination of the metals.
The addition of biodegradable cellulose acetate microspheres
(an adsorption material) weakened the toxicity of the heavy
metals; in their presence, the Cr(VI) removal efficiency returned
to a high level. The feasibility and applicability of simultaneous
nitrate removal and Cr(VI) reduction by strain
TAD1 is promising, and may be an effective biological method
for the clean-up of wastewater.	
		
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			Citations Citations to this article as recorded by    
- Hexavalent Chromium Pollution and its Sustainable Management through Bioremediation
 Anushka Paul, Sudeshna Dey, Deo Karan Ram, Alok Prasad Das
 Geomicrobiology Journal.2024; 41(4): 324.     CrossRef
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 Shuting Hu, Zixiang Wei, Teng Liu, Xinyu Zuo, Xiaoqiang Jia
 BMC Biotechnology.2024;[Epub]     CrossRef
- Growth-dependent cr(VI) reduction by Alteromonas sp. ORB2 under haloalkaline conditions: toxicity, removal mechanism and effect of heavy metals
 G. Kiran Kumar Reddy, K. Kavibharathi, Anuroop Singh, Y. V. Nancharaiah
 World Journal of Microbiology and Biotechnology.2024;[Epub]     CrossRef
- Hexavalent Cr, Its Toxicity and Removal Strategy: Revealing PGPB Potential in Its Remediation
 Akanksha Gupta, Anubhuti Singh, Virendra Kumar Mishra
 Water, Air, & Soil Pollution.2023;[Epub]     CrossRef
- Chromium Toxicity in Plants: Signaling, Mitigation, and Future Perspectives
 Sajad Ali, Rakeeb A. Mir, Anshika Tyagi, Nazia Manzar, Abhijeet Shankar Kashyap, Muntazir Mushtaq, Aamir Raina, Suvin Park, Sandhya Sharma, Zahoor A. Mir, Showkat A. Lone, Ajaz A. Bhat, Uqab Baba, Henda Mahmoudi, Hanhong Bae
 Plants.2023; 12(7): 1502.     CrossRef
- A comprehensive review on chromium (Cr) contamination and Cr(VI)-resistant extremophiles in diverse extreme environments
 Zeeshanur Rahman, Lebin Thomas, Siva P. K. Chetri, Shrey Bodhankar, Vikas Kumar, Ravi Naidu
 Environmental Science and Pollution Research.2023; 30(21): 59163.     CrossRef
- Health hazards of hexavalent chromium (Cr (VI)) and its microbial reduction
 Pooja Sharma, Surendra Pratap Singh, Sheetal Kishor Parakh, Yen Wah Tong
 Bioengineered.2022; 13(3): 4923.     CrossRef
- Reduced graphene oxide supported nanoscale zero-valent iron (nZVI/rGO) for in-situ remediation of Cr(VI)/nitrate-polluted aquifer
 Xinyang Liu, Wanting Liu, Zifang Chi
 Journal of Water Process Engineering.2022; 49: 103188.     CrossRef
- Simultaneous denitrification and hexavalent chromium removal by a newly isolated Stenotrophomonas maltophilia strain W26 under aerobic conditions
 Qiang An, Shu-man Deng, Bin Zhao, Zheng Li, Jia Xu, Jia-Li Song
 Environmental Chemistry.2021; 18(1): 20.     CrossRef
- Leucobacter coleopterorum sp. nov., Leucobacter insecticola sp. nov., and Leucobacter viscericola sp. nov., isolated from the intestine of the diving beetles, Cybister brevis and Cybister lewisianus, and emended description of the genus Leucobacter
 Dong-Wook Hyun, Hojun Sung, Pil Soo Kim, Ji-Hyun Yun, Jin-Woo Bae
 Journal of Microbiology.2021; 59(4): 360.     CrossRef
- Bioremediation of Chromium by Microorganisms and Its Mechanisms Related to Functional Groups
 Abate Ayele, Yakob Godebo Godeto, Yifeng Zhang
 Journal of Chemistry.2021; 2021: 1.     CrossRef
- Iron oxide minerals promote simultaneous bio-reduction of Cr(VI) and nitrate: Implications for understanding natural attenuation
 Yutian Hu, Tong Liu, Nan Chen, Chuanping Feng
 Science of The Total Environment.2021; 786: 147396.     CrossRef
- Cr(VI) reductase activity locates in the cytoplasm of Aeribacillus pallidus BK1, a novel Cr(VI)-reducing thermophile isolated from Tengchong geothermal region, China
 Yan Ma, Hui Zhong, Zhiguo He
 Chemical Engineering Journal.2019; 371: 524.     CrossRef
 
 
	
	
				- High Efficiency Transformation by Electroporation of Yarrowia lipolytica
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		Jia-Hung Wang , Wenpin Hung , Shu-Hsien Tsai 		
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			J. Microbiol. 2011;49(3):469-472.   Published online June 30, 2011		
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							DOI: https://doi.org/10.1007/s12275-011-0433-6
					
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						 Abstract Abstract PDF PDF
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		Yarrowia lipolytica was usually transformed by heat shock, but linearized integrative vectors always resulted in a low transformation efficiency when electroporation was used. To develop a high efficiency integrative transformation method by electroporation of Y. lipolytica, we report here that pretreatment of Y. lipolytica with 150 mM LiAc for 1 h before electroporation will approximately 30-fold of increase transformation efficiency. A cell concentration of 1010/ml and instrument settings of 1.5 kV will generate the highest transformation efficiencies. We have developed a procedure to transform Y. lipolytica that will be able to yield an efficiency of 2.1×104 transformants/μg for integrative linear DNA. With our modifications, the electroporation procedures became a very efficient and reliable tool for Y. lipolytica transformation.	
		
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			Citations Citations to this article as recorded by    
- Advances in synthetic biology tools paving the way for the biomanufacturing of unusual fatty acids using the Yarrowia lipolytica chassis
 Kaifeng Wang, Tian-Qiong Shi, Lu Lin, Ping Wei, Rodrigo Ledesma-Amaro, Xiao-Jun Ji, He Huang
 Biotechnology Advances.2022; 59: 107984.     CrossRef
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 Paul Swietalski, Frank Hetzel, Iris Klaiber, Eva Pross, Ines Seitl, Lutz Fischer
 Yeast.2022; 39(3): 230.     CrossRef
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 Zhiqiang Wen, Naief H. Al Makishah
 Applied Microbiology and Biotechnology.2022; 106(17): 5385.     CrossRef
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 Zhiyong Cui, Huihui Zheng, Zhennan Jiang, Zhaoxuan Wang, Jin Hou, Qian Wang, Quanfeng Liang, Qingsheng Qi
 ACS Synthetic Biology.2021; 10(4): 826.     CrossRef
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 Atrayee Chattopadhyay, Mohor Mitra, Mrinal K. Maiti
 Biotechnology Advances.2021; 53: 107722.     CrossRef
- Yarrowia lipolytica Strains and Their Biotechnological Applications: How Natural Biodiversity and Metabolic Engineering Could Contribute to Cell Factories Improvement
 Catherine Madzak
 Journal of Fungi.2021; 7(7): 548.     CrossRef
- Revisiting the unique structure of autonomously replicating sequences in Yarrowia lipolytica and its role in pathway engineering
 Carmen Lopez, Mingfeng Cao, Zhanyi Yao, Zengyi Shao
 Applied Microbiology and Biotechnology.2021; 105(14-15): 5959.     CrossRef
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 Chao Wang, Yanhua Cui, Xiaojun Qu
 Journal of Microbiological Methods.2020; 174: 105944.     CrossRef
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 Caleb Walker, Seunghyun Ryu, Richard J. Giannone, Sergio Garcia, Cong T. Trinh, Haruyuki Atomi
 Applied and Environmental Microbiology.2020;[Epub]     CrossRef
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 Microbial Cell Factories.2020;[Epub]     CrossRef
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 Research Support, Non-U.S. Gov't
	
	
				- The Schizosaccharomyces pombe Gene Encoding [gamma]-Glutamyl Transpeptidase I Is Regulated by Non-fermentable Carbon Sources and Nitrogen Starvation
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		Hong-Gyum Kim , Hey-Jung Park , Hyun-Jung Kang , Hye-Won Lim , Kyunghoon Kim , Eun-Hee Park , Kisup Ahn , Chang-Jin Lim 		
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			J. Microbiol. 2005;43(1):44-48. 		
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							DOI: https://doi.org/2139 [pii]
					
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						 Abstract Abstract PDF PDF
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		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.	
		
 Published Erratum