Professor Matt Johnson
School of Biosciences
Professor of Biochemistry, School Director of Research
- Profile
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- 2022 - 2023: Director of Research, School of Biosciences, 91直播
- 2021 - present: Chair in Biochemistry, School of Biosciences, 91直播
- 2018 - 2021: Reader in Biochemistry, School of Biosciences, 91直播
- 2015 - 2017: Lecturer, Dept. of Molecular Biology and Biotechnology, 91直播
- 2012 - 2017: Krebs Institute Research Fellow, Krebs Institute, University of 91直播.
- 2012 - 2015: Leverhulme Research Fellow, Dept. of Molecular Biology and Biotechnology, 91直播
- 2011 - 2012: Project Sunshine Research Fellow, Dept. of Molecular Biology and Biotechnology, 91直播.
- 2007 - 2011: Postdoctoral Research Associate, Queen Mary University of London.
- 2003 - 2007: PhD 鈥楾he role of the xanthophyll cycle in photoproection in Arabidopsis thaliana鈥, Dept. of Molecular Biology and Biotechnology, 91直播.
- Research interests
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The Johnson Lab is focused on photosynthesis the process that uses solar energy to transform water and carbon dioxide into the energy we consume and the oxygen we breathe. Research within my group falls into three overlapping areas:
Thylakoid membrane structure and dynamics
The chloroplast thylakoid membrane is the site for the initial steps of photosynthesis that convert solar energy into chemical energy, ultimately powering almost all life on earth.
The heterogeneous distribution of protein complexes within the membrane gives rise to an intricate three-dimensional structure that is nonetheless extremely dynamic on a timescale of seconds to minutes.
These dynamics form the basis for the regulation of photosynthesis, and therefore the adaptability of plants to different environments.
We use a multi-faceted approach that includes atomic force, electron and fluorescence microscopies in combination with biochemistry and spectroscopy to probe these organizational details and understand their functional relevance.
Single molecule electron transfer
Small diffusible redox proteins play a ubiquitous role in facilitating electron transfer (ET) in respiration and photosynthesis by shuttling electrons between membrane bound complexes in a redox-dependent manner.
The association of such small redox carrier proteins with their larger membrane-bound partners must be highly specific, yet also readily reversible in order to sustain rapid ET and turnover on microsecond/millisecond timescales.
New developments in force spectroscopy provide the first opportunity to quantify the dynamic forces that sustain these transient interactions and to understand their temporal evolution leading to dissociation.
We have adapted a new atomic force microscopy (AFM) technique PeakForce-QNM (PF-QNM), and have used it to directly monitor these intermolecular interactions at the single molecule level, with sub-millisecond time resolution, and with picoNewton force resolution.
Photoprotective energy dissipation
In photosynthesis, light-harvesting complexes (LHCs) capture solar energy and feed it to the downstream molecular machinery. However, when light absorption exceeds the capacity for utilization, the excess energy can cause damage. Thus, LHCs have evolved a feedback loop that triggers photoprotective energy dissipation.
The critical importance of photoprotection for plant fitness has been demonstrated, as well as its impact on crop yields. However, the mechanisms of photoprotection 鈥 from fast chemical reactions of molecules to slow conformational changes of proteins 鈥 have not yet been resolved.
We are working with partners at MIT and at Okazaki in Japan to study the protein and pigment dynamics that bring about the switch between the photoprotective and light harvesting states.
- Publications
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Show: Featured publications All publications
Featured publications
Journal articles
- . Biochimica et Biophysica Acta (BBA) - Bioenergetics.
- . Nature Plants.
- . The Plant Journal.
- . Nature, 575(-), 535-539.
- . Plant Physiology, 180(4), 2152-2166.
- . Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1860(7), 591-599.
- . Plant J, 61(2), 283-289.
- . Photosynthesis Research, 99(3), 173-183.
All publications
Journal articles
- . Science Advances, 9(51).
- . The Journal of Physical Chemistry Letters, 14(26), 6135-6142.
- . Proceedings of the National Academy of Sciences, 120(12).
- . Microorganisms, 10(9).
- . Biochemical Journal.
- . Sci Adv, 8(6), eabj4437.
- . Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1863(2), 148508-148508.
- . Current Biology.
- . Plant Direct, 5(10).
- . Biophysical Journal.
- . Frontiers in Microbiology, 12.
- . Biochimica et Biophysica Acta (BBA) - Bioenergetics.
- . Nature Plants.
- . The Plant Journal.
- . Biochemical Journal.
- . Journal of Experimental Botany, 71(12), 3380-3382.
- . Biophysical Journal, 119(2), 287-299.
- . Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1861(4), 148039-148039.
- . Nature, 575(-), 535-539.
- . Biochemical Journal, 476(15), 2173-2190.
- . Nature Plants, 5(8), 879-889.
- . Plant Physiology, 180(4), 2152-2166.
- . Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1860(7), 591-599.
- . Faraday Discussions, 216, 57-71.
- . Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1859(10), 1075-1085.
- . Nature Plants, 4(6), 391-391.
- . Biochemical Journal, 475(7), 1225-1233.
- . Biotechnology for Biofuels, 11(1), 60-60.
- . Nature Plants, 4, 116-127.
- . Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1858(10), 854-864.
- . Microscopy and Microanalysis, 23(S1), 844-845.
- . Essays In Biochemistry, 60(3), 255-273.
- . Parallel Computing, 55, 17-27.
- . Nature Plants, 1(12).
- . Nature Plants, 1(11).
- . Interface Focus, 5(4).
- . The Plant Cell, 26(7), 3051-3061.
- . Langmuir, 30(28), 8481-8490.
- . Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1837, e122-e122.
- . Biochimica et Biophysica Acta - Bioenergetics.
- . Photosynthesis Research, 119(1-2), 1-2.
- . BIOPHYSICAL JOURNAL, 105(4), 1018-1026.
- . Journal of Physical Chemistry B, 117(19), 5841-5847.
- . Photosynthesis Research, 1-10.
- . Planta, 235(1), 193-204.
- . Biophysical Journal, 102(11), 2669-2676.
- . Biophysical Journal, 102(12), 2761-2771.
- . Chemical Physics, 404, 123-128.
- . Energy & Environmental Science, 4(5), 1643-1643.
- . Plant Cell, 23(4), 1468-1479.
- Light-harvesting antenna composition controls the macrostructure and dynamics of thylakoid membranes in Arabidopsis. Plant Journal.
- . Journal of Biological Chemistry, 286(31), 27247-27254.
- . Plant Signaling and Behavior, 6(9), 1386-1390.
- . Journal of Biological Chemistry, 286(1), 91-98.
- . Journal of Biological Chemistry, 286(22), 19973-19981.
- . Planta, 233(6), 1253-1264.
- The photoprotective molecular switch in the photosystem II antenna. Biochimica et Biophysica Acta - Bioenergetics.
- . Biochimica et Biophysica Acta - Bioenergetics, 1807(2), 227-235.
- . The Plant Journal.
- . Plant Journal, 62(6), 948-959.
- . Archives of Biochemistry and Biophysics, 504(1), 78-85.
- . Journal of Physical Chemistry B, 114(46), 15244-15253.
- . Chemical Physics, 373(1-2), 23-32.
- . Plant J, 61(2), 283-289.
- . Journal of Biological Chemistry, 284(35), 23592-23601.
- . Photosynthesis Research, 99(3), 173-183.
- . Plant Physiology, 149(2), 1061-1075.
- . Plant Cell, 21(10), 3245-3256.
- . FEBS Lett, 582(2), 262-266.
- . Journal of Biological Chemistry, 283(43), 29505-29512.
- . FEBS Journal, 275(6), 1069-1079.
- . FEBS Letters, 582(10), 1477-1482.
- . J Biol Chem, 282(31), 22605-22618.
- Elevated zeaxanthin bound to oligomeric LHCII enhances the resistance of Arabidopsis to photo-oxidative stress by a lipid-protective, anti-oxidant mechanism. PHOTOSYNTH RES, 91(2-3), 319-319.
- . Journal of the American Chemical Society.
- . Nature Chemical Biology.
- . The Plant Cell.
- . Journal of Experimental Botany.
- . The Plant Journal.
- . Plant Physiology.
- . Plant Physiology.
- . The Plant Cell.
- . Nature Plants.
Conference proceedings papers
Preprints
- , Cold Spring Harbor Laboratory.
- , Cold Spring Harbor Laboratory.
- , Cold Spring Harbor Laboratory.
- , Research Square Platform LLC.
- , Cold Spring Harbor Laboratory.
- , arXiv.
- , Cold Spring Harbor Laboratory.
- , Cold Spring Harbor Laboratory.
- , Cold Spring Harbor Laboratory.
- , Cold Spring Harbor Laboratory.
- Research group
- Teaching activities
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Level 1 modules
- MBB161 Biochemistry
- MBB165 Practical Molecular Bioscience 1
Level 2 modules
- MBB266 Biostructures, Energetics and Synthesis (Module Coordinator)
Level 3 modules
- MBB304 Plant Biotechnology
- Professional activities and memberships
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- 2020: Wain Medal in Biochemistry
- 2018: Biochemical Society Colworth Medal
- 2017: MBB Teaching Prize
- 2016: Society for Experimental Biology President鈥檚 Medal in Plant Science