Matthew James Calthorpe-Byrne

Cryo-EM Scientist | Expert local contact & User training

Professional Summary

Cryo-EM scientist with over 10 years of experience in structural biology, combining deep technical expertise with a passion for scientific communication and education. Experienced across the full cryo-EM workflow from sample preparation through to model building and publication, with extensive hands-on experience using CryoSPARC in both academic facility and pharmaceutical industry settings. Regular instructor on national cryo-EM training courses at Diamond Light Source. Recently developed CryomaskR, an open-source tool that addresses a common pain point in cryo-EM processing, with an accompanying video demonstration that reached over 17,000 cryo-EM professionals on LinkedIn. Committed to helping researchers get the most out of cryo-EM through clear communication, practical training, and tools that solve real problems.

Highlighted Project: CryomaskR

Identified a widespread workflow bottleneck in cryo-EM mask generation and developed CryomaskR, an open-source tool that reduces mask creation time from 30-60 minutes to approximately 5 minutes through an intuitive 2D-to-3D projection interface.

Scientific Communication Impact:

  • 30,000+ impressions, 12,700+ video views, 639 reactions, 68 reposts
  • Gained 104 new followers from a single piece of content
  • Manuscript in preparation for bioRxiv

This project demonstrates the full cycle of identifying user needs, building solutions, and communicating their value to the scientific community.

Training & Scientific Communication

Regular Instructor, National Cryo-EM Training Courses (eBIC, Diamond Light Source)

  • EPU Training: Teaching automated data collection setup and optimisation
  • Single Particle Analysis Courses: Instructing on the complete SPA workflow
  • Hands-on support helping researchers from diverse backgrounds develop practical cryo-EM skills

User Support & Consultation

  • Expert local contact for external user groups at a national facility, providing technical guidance on experimental design and data collection strategies
  • Translate complex technical concepts for researchers new to cryo-EM
  • Support users across academic and industrial sectors with varying levels of experience

Publication Record

  • peer-reviewed papers including Nature Communications, Cell, JACS, and mAbs

Selected Conferences & Presentations

CCP-EM/Diamond Icknield Workshop - Planning Committee
Diamond Light Source, Harwell, UK | October 13-17, 2025

Member of the planning committee for the 5-day advanced EM model building and refinement course

CCP-EM Spring Symposium
East Midlands Conference Centre, Nottingham, UK | April 30 - May 2, 2024
Gordon Research Conference - Physical Virology
Renaissance Tuscany Il Ciocco Resort & Spa, Barga (Lucca), Italy | January 22-27, 2023

Promoted eBIC capabilities and services to the cryo-EM community

CCP-EM Spring Symposium
East Midlands Conference Centre, Nottingham, UK | April 25-27, 2023
CCP-EM Spring Symposium
East Midlands Conference Centre, Nottingham, UK | May 3-5, 2022
Gordon Research Conference - Physical Virology
Ventura Beach Marriott, Ventura, California, USA | January 20-25, 2019
CCP-EM Spring Symposium
University of Nottingham, Nottingham, UK | April 29 - May 1, 2019

Professional Experience

Cryo-EM Scientist
eBIC, Diamond Light Source | May 2025 - Present

Returned to the national cryo-EM facility, bringing pharmaceutical industry perspective to user support. Providing expert guidance on data processing workflows and automation. Teaching and training scientists in advanced cryo-EM techniques through formal courses and beamtime support.

Senior Structural Biologist
Exscientia/Recursion | June 2023 - April 2025

Led cryo-EM operations at an AI-driven drug discovery company (promoted from Structural Biologist; role ended due to company restructuring).

  • Delivered high-resolution structures of therapeutic targets with candidate compounds, enabling lead optimisation for oncology and immunology programs
  • Built the company's cryo-EM capabilities from the ground up: designed labs, specified equipment, implemented CryoSPARC processing pipelines, trained team members
  • Collaborated with AI/ML teams on computational antibody design, contributing structural insights to developability optimisation (Dreyer et al., 2025, mAbs)
  • Worked cross-functionally with medicinal chemists, computational biologists, and pharmacologists
Cryo-EM Scientist
eBIC, Diamond Light Source | August 2021 - June 2023
  • Expert local contact supporting external user groups with data collection and processing
  • Instructor on national EPU and SPA training courses
  • Maintained and operated Titan Krios microscopes
  • Conducted independent research on various biological targets
Postdoctoral Researcher
University of Leeds | May 2016 - August 2021
  • Determined structures of diverse biological targets including viral proteins (Nature Communications 2021), enzymes (JACS 2016), and large protein assemblies
  • Developed expertise in challenging single particle analysis: membrane proteins, asymmetric complexes, flexible assemblies

Education

PhD in Biochemistry
University of Bristol | 2016

Thesis: Structural and functional characterisation of enzymes in natural product biosynthesis

BSc in Biochemistry
University of Leeds | 2010

Technical Skills

Cryo-EM Software CryoSPARC (extensive), RELION, CisTEM, EPU, SerialEM
Crystallography CCP4, Phenix, XDS, SHELX
Visualisation Blender3D + Molecular Nodes, PyMOL, Chimera/X, Adobe Illustrator, Preparation of figures for publications
Programming Python, Bash scripting, Git/GitHub
Content Creation LinkedIn content, scientific video creation.
Other Electronic lab notebooks, HPC systems (SLURM, Linux), Cloud computing (AWS)

Publications

Dreyer FA, Schneider C, Kovaltsuk A, Cutting D, Byrne MJ, et al. (2025). Computational design of therapeutic antibodies with improved developability. mAbs 17(1).

Koziej L, Fatehi F, Aleksejczuk M, Byrne MJ, et al. (2025). Dynamic assembly of pentamer-based protein nanotubes. ACS Nano.

Passchier TC, White JBR, Maskell DP, Byrne MJ, et al. (2024). The cryoEM structure of the Hendra henipavirus nucleoprotein reveals insights into paramyxoviral nucleocapsid architectures. Scientific Reports.

Vergara-Cruces A, et al., Byrne MJ, et al. (2024). Structure of the plant plastid-encoded RNA polymerase. Cell 187(5).

Chase O, Javed A, Byrne MJ, et al. (2023). CryoEM and stability analysis of virus-like particles of potyvirus and ipomovirus infecting a common host. Communications Biology.

Byrne MJ, Iadanza MG, et al. (2021). Cryo-EM structures of an insecticidal Bt toxin reveal its mechanism of action on the membrane. Nature Communications 12(1).

Byrne MJ, Kashyap A, Esquirol L, Ranson N, Sainsbury F. (2021). The structure of a plant-specific partitivirus capsid reveals a unique coat protein domain architecture. Communications Biology.

Thuenemann EC, Byrne MJ, et al. (2021). A replicating viral vector greatly enhances accumulation of helical virus-like particles in plants. Viruses.

Byrne MJ, Nasir N, et al. (2020). Nek7 conformational flexibility and inhibitor binding probed through protein engineering. Biochemical Journal 477(8).

Nair AV, Robson A, Ackrill TD, Till M, Byrne MJ, et al. (2020). Structure and mechanism of a dehydratase/decarboxylase enzyme couple involved in polyketide β-methyl branch incorporation. Scientific Reports.

Byrne MJ, Steele JFC, et al. (2019). Combining transient expression and cryo-EM to obtain high-resolution structures of luteovirid particles. Structure.

Marsh CO, Lees NR, Han LC, Byrne MJ, et al. (2019). A Natural Diels-Alder Biocatalyst Enables Efficient [4+2] Cycloaddition Under Harsh Reaction Conditions. ChemCatChem.

Lees NR, Han LC, Byrne MJ, et al. (2019). An Esterase-like Lyase Catalyzes Acetate Elimination in Spirotetronate/Spirotetramate Biosynthesis. Angewandte Chemie.

Hesketh EL, Tiede C, Adamson H, Adams TL, Byrne MJ, et al. (2019). Affimer reagents as tools in diagnosing plant virus diseases. Scientific Reports.

Byrne MJ, Lees NR, et al. (2016). The catalytic mechanism of a natural Diels–Alderase revealed in molecular detail. JACS 138(19).

Till M, Robson A, Byrne MJ, et al. (2013). Improving the success rate of protein crystallization by random microseed matrix screening. JoVE.

References

Available upon request