Welcome. I am an Independent Principal Researcher and trained scientist in the fields of Biochemistry and Structural Biology, spanning a career of over thirty years. I specialise in the protein production, single particle image processing, transmission electron cryo-microscopy (cryo-EM, aka cryo-TEM) and 3D structural modelling of biological macromolecules.

I have been a Royal Society Lecturer/Senior Lecturer and Associate Professor at Imperial College London/Queen Mary London. I have also worked at a variety of institutions overseas. I have been an Official Advisor to Osaka University, Japan, and consultant to biological textbooks for the International Baccalaureate. I have contributed in excess of 100 scientific papers, written book chapters and spoken at International conferences.

My research interests targeted the solving of macromolecular protein structures in order to understand their function, using both wet and dry lab biochemical techniques. My work has been sponsored by numerous sources, including the UK government's BBSRC research council, The Royal Society and Japan's JST/CREST programme.

If you would like to enquire further, please do not hesitate to contact me: enquiry_at_jonnield_dot_com.

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Click on these images to reveal more about what the structures we investigate.
Most require about 2,000 of them, end to end, to span the width of a human hair!
Intrigued? then head on to the Showcase ...
*Brief references for images above (left to right, 20 images, from my research career) - 1 and 6. PSII-LHCII supercomplex, Nature Structural Biology, 2000; 2. isiA-PSI supercomplexes, see Nature: letters 2001a,b & 2003; Pcb-PSII supercomplex, PNAS 2003; 4. isiA-PSI in 3D, Journal of Biol. Chem. 2003; 5. Free download, updated frequently! Download it here. 7. PSII-LHCII supercomplex modelling study, BBA 2006; 8. Atomic Force Microscopy probing the molecular dynamics of thylakoid membranes, Biochemistry 2008; 9-11. Atomic model for the light-harvesting protein c-phycocyanin of a cyanobacterium, S. elongatus, Journal of Structural Biology, 2003; 12. Phylogenetic model for the major complexes in photosynthetic membranes, TiPS 2011; 13. Ozawa et al., The Plant Cell, 2009; 14. Bohm et al., The Plant Cell, 2012; 15. Pagliano et al., BBA-Bioenergetics, 2014; 16. Gutierrez et al., Metallomics, 2013; 17, 18 and 19. Albanese et al., Photosynthesis Research, 2016; 20. Redox Tuning in Photosystem II, Allen and Nield, TiPS 2017.

Last updated on the 20th June 2024.