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Mäki-Opas I, Hämäläinen M, Moilanen LJ, Sood H, Leppänen T, Kummola L, Junttila IS, Lehtimäki L, Moilanen E. TRPA1 Mediates Contact Hypersensitivity Induced by 2,4-Dinitrochlorobenzene. J Invest Dermatol 2023; 143:1104-1108.e4. [PMID: 36634816 DOI: 10.1016/j.jid.2022.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/28/2022] [Accepted: 12/12/2022] [Indexed: 01/11/2023]
Affiliation(s)
- Ilari Mäki-Opas
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland.
| | - Mari Hämäläinen
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Lauri J Moilanen
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Heini Sood
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Tiina Leppänen
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Laura Kummola
- Biodiversity Interventions for Well-being, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Ilkka S Junttila
- Cytokine Biology Research Group, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland; Fimlab Laboratories, Tampere, Finland; Northern Finland Laboratory Centre (NordLab), Oulu, Finland; Research Unit of Biomedicine, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - Lauri Lehtimäki
- Allergy Centre, Tampere University Hospital, Tampere, Finland; Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Eeva Moilanen
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
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Zhen N, Ye C, Shen Q, Zeng X, Wu Z, Guo Y, Cai Z, Pan D. Heterologous expression and biological characteristics of UGPases from Lactobacillus acidophilus. Appl Microbiol Biotechnol 2022; 106:2481-2491. [PMID: 35344091 DOI: 10.1007/s00253-022-11856-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 02/21/2022] [Accepted: 02/26/2022] [Indexed: 11/24/2022]
Abstract
Herein, two genes (LBA0625 and LBA1719) encoding UGPases (UDP-glucose pyrophosphorylase) in Lactobacillus acidophilus (L. acidophilus) were successfully transformed into Escherichia coli BL21 (DE3) to construct recombinant overexpressing strains (E-0625, E-1719) to investigate the biological characteristics of UGPase-0625 and UGPase-1719. The active sites, polysaccharide yield, and anti-freeze-drying stress of L. acidophilus ATCC4356 were also detected. UGPase-0625 and UGPase-1719 belong to the nucleotidyltransferase of stable hydrophilic proteins; contain 300 and 294 amino acids, respectively; and have 20 conserved active sites by prediction. Αlpha-helixes and random coils were the main secondary structures, which constituted the main skeleton of UGPases. The optimal mixture for the high catalytic activity of the two UGPases included 0.5 mM UDP-Glu (uridine diphosphate glucose) and Mg2+ at 37 °C, pH 10.0. By comparing the UGPase activities of the mutant strains with the original recombinant strains, A10, L130, and L263 were determined as the active sites of UGPase-0625 (P < 0.01) and A11, L130, and L263 were determined as the active sites of UGPase-1719 (P < 0.01). In addition, UGPase overexpression could increase the production of polysaccharides and the survival rates of recombinant bacteria after freeze-drying. This is the first study to determine the enzymatic properties, active sites, and structural simulation of UGPases from L. acidophilus, providing in-depth understanding of the biological characteristics of UGPases in lactic acid bacteria.Key points• We detected the biological characteristics of UGPases encoded by LBA0625 and LBA1719.• We identified UGPase-0625 and UGPase-1719 active sites.• UGPase overexpression elevates polysaccharide levels and post-freeze-drying survival.
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Affiliation(s)
- Ni Zhen
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products, Ningbo, 315211, China.,Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Ningbo University, Ningbo, 315800, China.,College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China
| | - Congyan Ye
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products, Ningbo, 315211, China.,Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Ningbo University, Ningbo, 315800, China.,College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China
| | - Qiyuan Shen
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products, Ningbo, 315211, China.,Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Ningbo University, Ningbo, 315800, China.,College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China
| | - Xiaoqun Zeng
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products, Ningbo, 315211, China. .,Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Ningbo University, Ningbo, 315800, China. .,College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China.
| | - Zhen Wu
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products, Ningbo, 315211, China.,Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Ningbo University, Ningbo, 315800, China.,College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China
| | - Yuxing Guo
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products, Ningbo, 315211, China.,School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210097, China
| | - Zhendong Cai
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products, Ningbo, 315211, China.,Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Ningbo University, Ningbo, 315800, China.,College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China
| | - Daodong Pan
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products, Ningbo, 315211, China.,Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Ningbo University, Ningbo, 315800, China.,College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, 315800, China
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