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Jang J, Lee SH, Kang DH, Sim DW, Ryu KS, Jo KS, Lee J, Ryu H, Kim EH, Won HS, Kim JH. Structural resemblance of the DNAJA-family protein, Tid1, to the DNAJB-family Hsp40. BMB Rep 2022. [PMID: 35651334 PMCID: PMC9623239 DOI: 10.5483/bmbrep.2022.55.10.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The specific pair of heat shock protein 70 (Hsp70) and Hsp40 constitutes an essential molecular chaperone system involved in numerous cellular processes, including the proper folding/refolding and transport of proteins. Hsp40 family members are characterized by the presence of a conserved J-domain (JD) that functions as a co-chaperone of Hsp70. Tumorous imaginal disc 1 (Tid1) is a tumor suppressor protein belonging to the DNAJA3 subfamily of Hsp40 and functions as a co-chaperone of the mitochondrial Hsp70, mortalin. In this work, we performed nuclear magnetic resonance spectroscopy to determine the solution structure of JD and its interaction with the glycine/phenylalanine-rich region (GF-motif) of human Tid1. Notably, Tid1-JD, whose conformation was consistent with that of the DNAJB1 JD, appeared to stably interact with its subsequent GF-motif region. Collectively with our sequence analysis, the present results demonstrate that the functional and regulatory mode of Tid1 resembles that of the DNAJB1 subfamily members rather than DNAJA1 or DNAJA2 subfamily proteins. Therefore, it is suggested that an allosteric interaction between mortalin and Tid1 is involved in the mitochondrial Hsp70/Hsp40 chaperone system.
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Affiliation(s)
- Jinhwa Jang
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Korea
| | - Sung-Hee Lee
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Korea
| | - Dong-Hoon Kang
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Korea
| | - Dae-Won Sim
- Department of Biotechnology, Research Institute (RIBHS) and College of Biomedical and Health Science, Konkuk University, Chungju 27478, Korea
| | - Kyung-Suk Ryu
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju 28119, Korea
| | - Ku-Sung Jo
- Department of Biotechnology, Research Institute (RIBHS) and College of Biomedical and Health Science, Konkuk University, Chungju 27478, Korea
| | - Jinhyuk Lee
- Genome Editing Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Korea
- Department of Bioinformatics, KRIBB School of Bioscience, University of Science and Technology (UST), Daejeon 34113, Korea
| | - Hyojung Ryu
- Korean Genomics Center (KOGIC), Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea
- Department of Biomedical Engineering, College of Information and Biotechnology, UNIST, Ulsan 44919, Korea
| | - Eun-Hee Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju 28119, Korea
| | - Hyung-Sik Won
- Department of Biotechnology, Research Institute (RIBHS) and College of Biomedical and Health Science, Konkuk University, Chungju 27478, Korea
- BK21 Project Team, Department of Applied Life Science, Graduate School, Konkuk University, Chungju 27478, Korea
- Corresponding authors. Ji-Hun Kim, Tel: +82-43-249-1343; Fax: +82-43-268-2732; E-mail: ; Hyung-Sik Won, Tel: +82-43-840-3589; Fax: +82-43-840-3048; E-mail: wonhs@kku. ac.kr
| | - Ji-Hun Kim
- College of Pharmacy, Chungbuk National University, Cheongju 28160, Korea
- Corresponding authors. Ji-Hun Kim, Tel: +82-43-249-1343; Fax: +82-43-268-2732; E-mail: ; Hyung-Sik Won, Tel: +82-43-840-3589; Fax: +82-43-840-3048; E-mail: wonhs@kku. ac.kr
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