1
|
Sharma S, Gautam AK, Singh R, Gourinath S, Kateriya S. Unusual photodynamic characteristics of the light-oxygen-voltage domain of phototropin linked to terrestrial adaptation of Klebsormidium nitens. FEBS J 2024. [PMID: 39344087 DOI: 10.1111/febs.17284] [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: 01/16/2024] [Revised: 05/17/2024] [Accepted: 09/13/2024] [Indexed: 10/01/2024]
Abstract
Phototropin (Phot), a blue light-sensing LOV domain protein, mediates blue light responses and is evolutionarily conserved across the green lineage. Klebsormidium nitens, a green terrestrial alga, presents a valuable opportunity to study adaptive responses from aquatic to land habitat transitions. We determined the crystal structure of Klebsormidium nitens Phot LOV1 domain (KnLOV1) in the dark and engineered different mutations (R60K, Q122N, and D33N) to modulate the lifetime of the photorecovery cycle. We observed unusual, slow recovery kinetics in the wild-type KnLOV1 domain (τ = 41 ± 3 min) compared to different mutants (R60K: τ = 2.0 ± 0.1 min, Q122N: τ = 1.7 ± 0.1 min, D33N: τ = 9.6 ± 0.1 min). Crystal structures of wild-type KnLOV1 and mutants revealed subtle but critical changes near the protein chromophore that is responsible for modulating protein dark recovery time. Our findings shed light on the unique structural and biochemical characteristics of the newly studied KnLOV1 and its evolutionary importance for phototropin-mediated physiology.
Collapse
Affiliation(s)
- Sunita Sharma
- Laboratory of Optobiotechnology, School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
- Department of Cellular Biology, University of Georgia, Athens, Georgia, USA
| | - Avinash Kumar Gautam
- Structural Biology Lab, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Rajani Singh
- Laboratory of Optobiotechnology, School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Samudrala Gourinath
- Structural Biology Lab, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Suneel Kateriya
- Laboratory of Optobiotechnology, School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| |
Collapse
|
2
|
Wang J, Liang YP, Zhu JD, Wang YX, Yang MY, Yan HR, Lv QY, Cheng K, Zhao X, Zhang X. Phototropin 1 Mediates High-Intensity Blue Light-Induced Chloroplast Accumulation Response in a Root Phototropism 2-Dependent Manner in Arabidopsis phot2 Mutant Plants. FRONTIERS IN PLANT SCIENCE 2021; 12:704618. [PMID: 34646282 PMCID: PMC8502927 DOI: 10.3389/fpls.2021.704618] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
Phototropins, namely, phototropin 1 (phot1) and phototropin 2 (phot2), mediate chloroplast movement to maximize photosynthetic efficiency and prevent photodamage in plants. Phot1 primarily functions in chloroplast accumulation process, whereas phot2 mediates both chloroplast avoidance and accumulation responses. The avoidance response of phot2-mediated chloroplasts under high-intensity blue light (HBL) limited the understanding of the function of phot1 in the chloroplast accumulation process at the HBL condition. In this study, we showed that the phot2 mutant exhibits a chloroplast accumulation response under HBL, which is defective when the root phototropism 2 (RPT2) gene is mutated in the phot2 background, mimicking the phenotype of the phot1 phot2 double mutant. A further analysis revealed that the expression of RPT2 was induced by HBL and the overexpression of RPT2 could partially enhance the chloroplast accumulation response under HBL. These results confirmed that RPT2 also participates in regulating the phot1-mediated chloroplast accumulation response under HBL. In contrast, RPT2 functions redundantly with neural retina leucine zipper (NRL) protein for chloroplast movement 1 (NCH1) under low-light irradiation. In addition, no chloroplast accumulation response was detected in the phot2 jac1 double mutant under HBL, which has been previously observed in phot2 rpt2 and phot1 phot2 double mutants. Taken together, our results indicated that phot1 mediates the HBL-induced chloroplast accumulation response in an RPT2-dependent manner and is also regulated by j-domain protein required for chloroplast accumulation response 1 (JAC1).
Collapse
|
3
|
Choi S, Nakasone Y, Hellingwerf KJ, Terazima M. Photoreaction Dynamics of a Full-Length Protein YtvA and Intermolecular Interaction with RsbRA. Biochemistry 2020; 59:4703-4710. [PMID: 33287544 DOI: 10.1021/acs.biochem.0c00888] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
YtvA from Bacillus subtilis is a sensor protein that responds to blue light stress and regulates the activity of transcription factor σB. It is composed of the N-terminal LOV (light-oxygen-voltage) domain, the C-terminal STAS (sulfate transporter and anti-sigma factor antagonist) domain, and a linker region connecting them. In this study, the photoreaction and kinetics of full-length YtvA and the intermolecular interaction with a downstream protein, RsbRA, were revealed by the transient grating method. Although N-YLOV-linker, which is composed of the LOV domain of YtvA with helices A'α and Jα, exhibits a diffusion change due to the rotational motion of the helices, the YtvA dimer does not show the diffusion change. This result suggests that the STAS domain inhibits the rotational movement of helices A'α and Jα. We found that the YtvA dimer formed a heterotetramer with the RsbRA dimer probably via the interaction between the STAS domains, and we showed the diffusion change upon blue light illumination with a time constant faster than 70 μs. This result suggests a conformational change of the STAS domains; i.e., the interface between the STAS domains of the proteins changes to enhance the friction with water by the rotation structural change of helices A'α and Jα of YtvA.
Collapse
Affiliation(s)
- Seokwoo Choi
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Yusuke Nakasone
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Klaas J Hellingwerf
- Molecular Microbial Physiology Group, Swammerdam Institute for Life Sciences, University of Amsterdam, 1098 XH Amsterdam, The Netherlands
| | - Masahide Terazima
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| |
Collapse
|
4
|
Nakasone Y, Ohshima M, Okajima K, Tokutomi S, Terazima M. Photoreaction Dynamics of LOV1 and LOV2 of Phototropin from Chlamydomonas reinhardtii. J Phys Chem B 2018; 122:1801-1815. [DOI: 10.1021/acs.jpcb.7b10266] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yusuke Nakasone
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Masumi Ohshima
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Koji Okajima
- Graduate
School of Science and Technology, Keio University, Kanagawa 223-8522, Japan
| | - Satoru Tokutomi
- Department
of Biological Science, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Masahide Terazima
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| |
Collapse
|
5
|
Takakado A, Nakasone Y, Terazima M. Photoinduced dimerization of a photosensory DNA-binding protein EL222 and its LOV domain. Phys Chem Chem Phys 2017; 19:24855-24865. [DOI: 10.1039/c7cp03686h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Blue light sensor protein EL222, which regulates DNA-binding affinity, exhibits photoinduced dimerization in the absence of target DNA.
Collapse
Affiliation(s)
- Akira Takakado
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto 606-8502
- Japan
| | - Yusuke Nakasone
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto 606-8502
- Japan
| | - Masahide Terazima
- Department of Chemistry
- Graduate School of Science
- Kyoto University
- Kyoto 606-8502
- Japan
| |
Collapse
|
6
|
Akiyama Y, Nakasone Y, Nakatani Y, Hisatomi O, Terazima M. Time-Resolved Detection of Light-Induced Dimerization of Monomeric Aureochrome-1 and Change in Affinity for DNA. J Phys Chem B 2016; 120:7360-70. [PMID: 27404115 DOI: 10.1021/acs.jpcb.6b05760] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Aureochrome (Aureo) is a recently discovered blue light sensor protein initially from Vaucheria frigida, in which it controls blue light-dependent branch formation and/or development of a sex organ by a light-dependent change in the affinity for DNA. Although photochemical reactions of Aureo-LOV (LOV is a C-terminal light-oxygen-voltage domain) and the N-terminal truncated construct containing a bZIP (N-terminal basic leucine zipper domain) and a LOV domain have previously been reported, the reaction kinetics of the change in affinity for DNA have never been elucidated. The reactions of Aureo where the cysteines are replaced by serines (AureoCS) as well as the kinetics of the change in affinity for a target DNA are investigated in the time-domain. The dimerization rate constant is obtained as 2.8 × 10(4) M(-1) s(-1), which suggests that the photoinduced dimerization occurs in the LOV domain and the bZIP domain dimerizes using the interaction with DNA. Surprisingly, binding with the target DNA is completed very quickly, 7.7 × 10(4) M(-1) s(-1), which is faster than the protein dimerization rate. It is proposed that the nonspecific electrostatic interaction, which is observed as a weak binding with DNA, may play a role in the efficient searching for the target sequence within the DNA.
Collapse
Affiliation(s)
- Yuki Akiyama
- Department of Chemistry, Graduate School of Science, Kyoto University , Kyoto 606-8502, Japan
| | - Yusuke Nakasone
- Department of Chemistry, Graduate School of Science, Kyoto University , Kyoto 606-8502, Japan
| | - Yoichi Nakatani
- Department of Earth and Space Science, Graduate School of Science, Osaka University , Osaka 560-0043, Japan
| | - Osamu Hisatomi
- Department of Earth and Space Science, Graduate School of Science, Osaka University , Osaka 560-0043, Japan
| | - Masahide Terazima
- Department of Chemistry, Graduate School of Science, Kyoto University , Kyoto 606-8502, Japan
| |
Collapse
|
7
|
Nakasone Y, Ooi H, Kamiya Y, Asanuma H, Terazima M. Dynamics of Inter-DNA Chain Interaction of Photoresponsive DNA. J Am Chem Soc 2016; 138:9001-4. [DOI: 10.1021/jacs.6b02525] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yusuke Nakasone
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | | | | | | | - Masahide Terazima
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| |
Collapse
|
8
|
Yoshitake T, Toyooka T, Nakasone Y, Zikihara K, Tokutomi S, Terazima M. Macromolecular crowding effect for photoreactions of LOV2 domains of Arabidopsis thaliana phototropin 1. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2015.08.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
9
|
Yang C, Choi J, Ihee H. The time scale of the quaternary structural changes in hemoglobin revealed using the transient grating technique. Phys Chem Chem Phys 2015; 17:22571-5. [PMID: 26272458 DOI: 10.1039/c5cp03059e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The quaternary structural transition between the R and T states of human hemoglobin was investigated using the transient grating technique. The results presented herein reveal that the quaternary structural change accompanied by the R-T transition occurs within a few microseconds.
Collapse
Affiliation(s)
- Cheolhee Yang
- Department of Chemistry, KAIST, Daejeon 305-701, Republic of Korea.
| | | | | |
Collapse
|
10
|
Nakasone Y, Kawaguchi Y, Kong SG, Wada M, Terazima M. Photoinduced Oligomerization of Arabidopsis thaliana Phototropin 2 LOV1. J Phys Chem B 2014; 118:14314-25. [DOI: 10.1021/jp509448b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yusuke Nakasone
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Yuki Kawaguchi
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Sam-Geun Kong
- Department
of Biology, Faculty of Sciences, Kyushu University, Fukuoka 812-8581, Japan
| | - Masamitsu Wada
- Department
of Biology, Faculty of Sciences, Kyushu University, Fukuoka 812-8581, Japan
| | - Masahide Terazima
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| |
Collapse
|
11
|
Sharma S, Kharshiing E, Srinivas A, Zikihara K, Tokutomi S, Nagatani A, Fukayama H, Bodanapu R, Behera RK, Sreelakshmi Y, Sharma R. A dominant mutation in the light-oxygen and voltage2 domain vicinity impairs phototropin1 signaling in tomato. PLANT PHYSIOLOGY 2014; 164:2030-2044. [PMID: 24515830 PMCID: PMC3982760 DOI: 10.1104/pp.113.232306] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 02/09/2014] [Indexed: 05/29/2023]
Abstract
In higher plants, blue light (BL) phototropism is primarily controlled by the phototropins, which are also involved in stomatal movement and chloroplast relocation. These photoresponses are mediated by two phototropins, phot1 and phot2. Phot1 mediates responses with higher sensitivity than phot2, and phot2 specifically mediates chloroplast avoidance and dark positioning responses. Here, we report the isolation and characterization of a Nonphototropic seedling1 (Nps1) mutant of tomato (Solanum lycopersicum). The mutant is impaired in low-fluence BL responses, including chloroplast accumulation and stomatal opening. Genetic analyses show that the mutant locus is dominant negative in nature. In dark-grown seedlings of the Nps1 mutant, phot1 protein accumulates at a highly reduced level relative to the wild type and lacks BL-induced autophosphorylation. The mutant harbors a single glycine-1484-to-alanine transition in the Hinge1 region of a phot1 homolog, resulting in an arginine-to-histidine substitution (R495H) in a highly conserved A'α helix proximal to the light-oxygen and voltage2 domain of the translated gene product. Significantly, the R495H substitution occurring in the Hinge1 region of PHOT1 abolishes its regulatory activity in Nps1 seedlings, thereby highlighting the functional significance of the A'α helix region in phototropic signaling of tomato.
Collapse
|
12
|
Recent advances in understanding the molecular mechanism of chloroplast photorelocation movement. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2013; 1837:522-30. [PMID: 24333784 DOI: 10.1016/j.bbabio.2013.12.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 11/25/2013] [Accepted: 12/04/2013] [Indexed: 11/21/2022]
Abstract
Plants are photosynthetic organisms that have evolved unique systems to adapt fluctuating environmental light conditions. In addition to well-known movement responses such as phototropism, stomatal opening, and nastic leaf movements, chloroplast photorelocation movement is one of the essential cellular responses to optimize photosynthetic ability and avoid photodamage. For these adaptations, chloroplasts accumulate at the areas of cells illuminated with low light (called accumulation response), while they scatter from the area illuminated with strong light (called avoidance response). Plant-specific photoreceptors (phototropin, phytochrome, and/or neochrome) mediate these dynamic directional movements in response to incident light position and intensity. Several factors involved in the mechanisms underlying the processes from light perception to actin-based movements have also been identified through molecular genetic approach. This review aims to discuss recent findings in the field relating to how chloroplasts move at molecular levels. This article is part of a Special Issue entitled: Dynamic and ultrastructure of bioenergetic membranes and their components.
Collapse
|