IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v14y2023i1d10.1038_s41467-023-43193-3.html
   My bibliography  Save this article

Cryo-EM structures of the plant anion channel SLAC1 from Arabidopsis thaliana suggest a combined activation model

Author

Listed:
  • Yeongmok Lee

    (Sungkyunkwan University)

  • Hyeon Seong Jeong

    (Neurovascular Unit Research Group, Korea Brain Research Institute
    Daegu Gyeongbuk Institute of Science & Technology (DGIST))

  • Seoyeon Jung

    (Sungkyunkwan University)

  • Junmo Hwang

    (Neurovascular Unit Research Group, Korea Brain Research Institute)

  • Chi Truc Han Le

    (Sungkyunkwan University)

  • Sung-Hoon Jun

    (Korea Basic Science Institute)

  • Eun Jo Du

    (Neurovascular Unit Research Group, Korea Brain Research Institute)

  • KyeongJin Kang

    (Neurovascular Unit Research Group, Korea Brain Research Institute)

  • Beom-Gi Kim

    (Metabolic Engineering Division, National Institute of Agricultural Sciences, Rural Development Administration)

  • Hyun-Ho Lim

    (Neurovascular Unit Research Group, Korea Brain Research Institute
    Daegu Gyeongbuk Institute of Science & Technology (DGIST))

  • Sangho Lee

    (Sungkyunkwan University)

Abstract

The anion channel SLAC1 functions as a crucial effector in the ABA signaling, leading to stomata closure. SLAC1 is activated by phosphorylation in its intracellular domains. Both a binding-activation model and an inhibition-release model for activation have been proposed based on only the closed structures of SLAC1, rendering the structure-based activation mechanism controversial. Here we report cryo-EM structures of Arabidopsis SLAC1 WT and its phosphomimetic mutants in open and closed states. Comparison of the open structure with the closed ones reveals the structural basis for opening of the conductance pore. Multiple phosphorylation of an intracellular domain (ICD) causes dissociation of ICD from the transmembrane domain. A conserved, positively-charged sequence motif in the intracellular loop 2 (ICL2) seems to be capable of sensing of the negatively charged phosphorylated ICD. Interactions between ICL2 and ICD drive drastic conformational changes, thereby widening the pore. From our results we propose that SLAC1 operates by a mechanism combining the binding-activation and inhibition-release models.

Suggested Citation

  • Yeongmok Lee & Hyeon Seong Jeong & Seoyeon Jung & Junmo Hwang & Chi Truc Han Le & Sung-Hoon Jun & Eun Jo Du & KyeongJin Kang & Beom-Gi Kim & Hyun-Ho Lim & Sangho Lee, 2023. "Cryo-EM structures of the plant anion channel SLAC1 from Arabidopsis thaliana suggest a combined activation model," Nature Communications, Nature, vol. 14(1), pages 1-16, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-43193-3
    DOI: 10.1038/s41467-023-43193-3
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-023-43193-3
    File Function: Abstract
    Download Restriction: no

    File URL: https://libkey.io/10.1038/s41467-023-43193-3?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Kathryn Tunyasuvunakool & Jonas Adler & Zachary Wu & Tim Green & Michal Zielinski & Augustin Žídek & Alex Bridgland & Andrew Cowie & Clemens Meyer & Agata Laydon & Sameer Velankar & Gerard J. Kleywegt, 2021. "Highly accurate protein structure prediction for the human proteome," Nature, Nature, vol. 596(7873), pages 590-596, August.
    2. Juntaro Negi & Osamu Matsuda & Takashi Nagasawa & Yasuhiro Oba & Hideyuki Takahashi & Maki Kawai-Yamada & Hirofumi Uchimiya & Mimi Hashimoto & Koh Iba, 2008. "CO2 regulator SLAC1 and its homologues are essential for anion homeostasis in plant cells," Nature, Nature, vol. 452(7186), pages 483-486, March.
    3. Yawen Li & Yinan Ding & Lili Qu & Xinru Li & Qinxuan Lai & Pingxia Zhao & Yongxiang Gao & Chengbin Xiang & Chunlei Cang & Xin Liu & Linfeng Sun, 2022. "Structure of the Arabidopsis guard cell anion channel SLAC1 suggests activation mechanism by phosphorylation," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    4. John Jumper & Richard Evans & Alexander Pritzel & Tim Green & Michael Figurnov & Olaf Ronneberger & Kathryn Tunyasuvunakool & Russ Bates & Augustin Žídek & Anna Potapenko & Alex Bridgland & Clemens Me, 2021. "Highly accurate protein structure prediction with AlphaFold," Nature, Nature, vol. 596(7873), pages 583-589, August.
    5. Triin Vahisalu & Hannes Kollist & Yong-Fei Wang & Noriyuki Nishimura & Wai-Yin Chan & Gabriel Valerio & Airi Lamminmäki & Mikael Brosché & Heino Moldau & Radhika Desikan & Julian I. Schroeder & Jaakko, 2008. "SLAC1 is required for plant guard cell S-type anion channel function in stomatal signalling," Nature, Nature, vol. 452(7186), pages 487-491, March.
    6. Yu-hang Chen & Lei Hu & Marco Punta & Renato Bruni & Brandan Hillerich & Brian Kloss & Burkhard Rost & James Love & Steven A. Siegelbaum & Wayne A. Hendrickson, 2010. "Homologue structure of the SLAC1 anion channel for closing stomata in leaves," Nature, Nature, vol. 467(7319), pages 1074-1080, October.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Yawen Li & Yinan Ding & Lili Qu & Xinru Li & Qinxuan Lai & Pingxia Zhao & Yongxiang Gao & Chengbin Xiang & Chunlei Cang & Xin Liu & Linfeng Sun, 2022. "Structure of the Arabidopsis guard cell anion channel SLAC1 suggests activation mechanism by phosphorylation," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    2. Pierre Azoulay & Joshua Krieger & Abhishek Nagaraj, 2024. "Old Moats for New Models: Openness, Control, and Competition in Generative AI," NBER Chapters, in: Entrepreneurship and Innovation Policy and the Economy, volume 4, National Bureau of Economic Research, Inc.
    3. Deyun Qiu & Jinxin V. Pei & James E. O. Rosling & Vandana Thathy & Dongdi Li & Yi Xue & John D. Tanner & Jocelyn Sietsma Penington & Yi Tong Vincent Aw & Jessica Yi Han Aw & Guoyue Xu & Abhai K. Tripa, 2022. "A G358S mutation in the Plasmodium falciparum Na+ pump PfATP4 confers clinically-relevant resistance to cipargamin," Nature Communications, Nature, vol. 13(1), pages 1-18, December.
    4. Shuo-Shuo Liu & Tian-Xia Jiang & Fan Bu & Ji-Lan Zhao & Guang-Fei Wang & Guo-Heng Yang & Jie-Yan Kong & Yun-Fan Qie & Pei Wen & Li-Bin Fan & Ning-Ning Li & Ning Gao & Xiao-Bo Qiu, 2024. "Molecular mechanisms underlying the BIRC6-mediated regulation of apoptosis and autophagy," Nature Communications, Nature, vol. 15(1), pages 1-16, December.
    5. Xiaoke Yang & Mingqi Zhu & Xue Lu & Yuxin Wang & Junyu Xiao, 2024. "Architecture and activation of human muscle phosphorylase kinase," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    6. Efren Garcia-Maldonado & Andrew D. Huber & Sergio C. Chai & Stanley Nithianantham & Yongtao Li & Jing Wu & Shyaron Poudel & Darcie J. Miller & Jayaraman Seetharaman & Taosheng Chen, 2024. "Chemical manipulation of an activation/inhibition switch in the nuclear receptor PXR," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    7. Kristy Rochon & Brianna L. Bauer & Nathaniel A. Roethler & Yuli Buckley & Chih-Chia Su & Wei Huang & Rajesh Ramachandran & Maria S. K. Stoll & Edward W. Yu & Derek J. Taylor & Jason A. Mears, 2024. "Structural basis for regulated assembly of the mitochondrial fission GTPase Drp1," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    8. Katherine A. Ray & Joshua D. Lutgens & Ramesh Bista & Jie Zhang & Ronak R. Desai & Melissa Hirsch & Takeshi Miyazawa & Antonio Cordova & Adrian T. Keatinge-Clay, 2024. "Assessing and harnessing updated polyketide synthase modules through combinatorial engineering," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    9. Fan Lu & Liang Zhu & Thomas Bromberger & Jun Yang & Qiannan Yang & Jianmin Liu & Edward F. Plow & Markus Moser & Jun Qin, 2022. "Mechanism of integrin activation by talin and its cooperation with kindlin," Nature Communications, Nature, vol. 13(1), pages 1-19, December.
    10. Zengyu Shao & Jiuwei Lu & Nelli Khudaverdyan & Jikui Song, 2024. "Multi-layered heterochromatin interaction as a switch for DIM2-mediated DNA methylation," Nature Communications, Nature, vol. 15(1), pages 1-18, December.
    11. Yudong Gao & Daichi Shonai & Matthew Trn & Jieqing Zhao & Erik J. Soderblom & S. Alexandra Garcia-Moreno & Charles A. Gersbach & William C. Wetsel & Geraldine Dawson & Dmitry Velmeshev & Yong-hui Jian, 2024. "Proximity analysis of native proteomes reveals phenotypic modifiers in a mouse model of autism and related neurodevelopmental conditions," Nature Communications, Nature, vol. 15(1), pages 1-18, December.
    12. Martin F. Peter & Christian Gebhardt & Rebecca Mächtel & Gabriel G. Moya Muñoz & Janin Glaenzer & Alessandra Narducci & Gavin H. Thomas & Thorben Cordes & Gregor Hagelueken, 2022. "Cross-validation of distance measurements in proteins by PELDOR/DEER and single-molecule FRET," Nature Communications, Nature, vol. 13(1), pages 1-19, December.
    13. Jutta Diessl & Jens Berndtsson & Filomena Broeskamp & Lukas Habernig & Verena Kohler & Carmela Vazquez-Calvo & Arpita Nandy & Carlotta Peselj & Sofia Drobysheva & Ludovic Pelosi & F.-Nora Vögtle & Fab, 2022. "Manganese-driven CoQ deficiency," Nature Communications, Nature, vol. 13(1), pages 1-14, December.
    14. Alexander Kroll & Sahasra Ranjan & Martin K. M. Engqvist & Martin J. Lercher, 2023. "A general model to predict small molecule substrates of enzymes based on machine and deep learning," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    15. Lisa-Marie Appel & Vedran Franke & Johannes Benedum & Irina Grishkovskaya & Xué Strobl & Anton Polyansky & Gregor Ammann & Sebastian Platzer & Andrea Neudolt & Anna Wunder & Lena Walch & Stefanie Kais, 2023. "The SPOC domain is a phosphoserine binding module that bridges transcription machinery with co- and post-transcriptional regulators," Nature Communications, Nature, vol. 14(1), pages 1-22, December.
    16. Maciej K. Kocylowski & Hande Aypek & Wolfgang Bildl & Martin Helmstädter & Philipp Trachte & Bernhard Dumoulin & Sina Wittösch & Lukas Kühne & Ute Aukschun & Carolin Teetzen & Oliver Kretz & Botond Ga, 2022. "A slit-diaphragm-associated protein network for dynamic control of renal filtration," Nature Communications, Nature, vol. 13(1), pages 1-15, December.
    17. Marie C. Schoelmerich & Lynn Ly & Jacob West-Roberts & Ling-Dong Shi & Cong Shen & Nikhil S. Malvankar & Najwa Taib & Simonetta Gribaldo & Ben J. Woodcroft & Christopher W. Schadt & Basem Al-Shayeb & , 2024. "Borg extrachromosomal elements of methane-oxidizing archaea have conserved and expressed genetic repertoires," Nature Communications, Nature, vol. 15(1), pages 1-17, December.
    18. Michael A. Longo & Sunetra Roy & Yue Chen & Karl-Heinz Tomaszowski & Andrew S. Arvai & Jordan T. Pepper & Rebecca A. Boisvert & Selvi Kunnimalaiyaan & Caezanne Keshvani & David Schild & Albino Bacolla, 2023. "RAD51C-XRCC3 structure and cancer patient mutations define DNA replication roles," Nature Communications, Nature, vol. 14(1), pages 1-16, December.
    19. Zachary C. Drake & Justin T. Seffernick & Steffen Lindert, 2022. "Protein complex prediction using Rosetta, AlphaFold, and mass spectrometry covalent labeling," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    20. Leonardo Betancurt-Anzola & Markel Martínez-Carranza & Marc Delarue & Kelly M. Zatopek & Andrew F. Gardner & Ludovic Sauguet, 2023. "Molecular basis for proofreading by the unique exonuclease domain of Family-D DNA polymerases," Nature Communications, Nature, vol. 14(1), pages 1-15, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-43193-3. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.