Protein Choreography

Lead Research Organisation: UNIVERSITY OF EXETER
Department Name: Biosciences

Abstract

The processes of life are dynamic - it is change on a molecular level that enables us to grow and move, but also to become ill and treat disease. Just as the shape and posture of our body can determine our readiness to perform a task, the structure and conformation of a protein molecule can determine its function or activity. It is the ability for proteins to dynamically and rapidly reconfigure that underpins many critical activities in biology, disease and medicine.
However, we are currently limited to study proteins, including many important enzymes, at high resolution in space or time - but not both. Static structural models have contributed to major advances, such as in gene editing technology, based on the reprogramming of the enzyme 'CRISPR/Cas9'. This structural information is also crucial for drug discovery, accurately guiding design and optimisation efforts.
These are major new applications that rely on precisely controlling dynamic changes in protein structure. These aims - and our understanding of fundamental biology - will be greatly advanced by bridging high resolution information in both time and space.
My research will pioneer an integrated experimental and computational approach to determine with unprecedented spatio-temporal resolution how enzymes are dynamically regulated and how they catalyse chemical reactions. We now have a unique opportunity to make measurements of the structural perturbations in large enzymes both with high structural resolution (per amino acid building block) and high temporal resolution (per millisecond). The information that we gain will be used to build high resolution dynamic structural models in which individual features reconfigure according to their individual rates, determined experimentally with millisecond and amino acid precision.
This work will focus on two areas of recent high profile success in developing tools for biotechnology and medicine which depend on the exquisite control of enzyme dynamic structural changes. (i) Gene editing: There is a growing effort to engineer CRISPR/Cas9 enzymes to improve their efficiency and to create entirely new tools for targeted mutation of the genome in situ. This has potentially broad application in research, but also to specifically treat genetic diseases. We will study gene editing enzymes to provide mechanistic insight to explain their behaviour and to guide the development of variants with improved activities. (ii) Allosteric drug discovery. There has been major recent investment by both big pharma and by venture capital/biotechnology partnerships to discover 'allosteric' drugs that control enzyme function by controlling the protein conformation. These drugs have potential benefits in selectivity and the ability to modify otherwise intractable targets in disease. We will ascertain whether the new millisecond time-resolved measurements that we will develop can differentiate signatures of allosteric regulation and thus form the basis of a direct screen for allosteric drugs.
This research programme brings together expertise in building novel experimental methods, cutting edge data science approaches, development of new software tools and a direct relevance to fundamental biology and applications in biotechnology and drug discovery.

Planned Impact

Impact Goal: To create new opportunities for drug discovery and biotechnology by building new tools to understand how protein molecules move.

Beneficiaries
Private sector: Pharmaceutical companies, for example multi-nationals with major R&D presence in the UK, like AstraZeneca and GSK. Private sector biotechnology companies, including producers of enzyme drugs, such as Ipsen and also antibody discovery organisations, such as Kymab and Genentech. Vendors of mass spectrometry instrumentation, such as Waters, who have a major R&D base in Manchester, UK. Also Thermo-Fisher, whose hydrogen/deuterium-exchange mass spectrometry is developed as part of an Integrated Structural Biology team, which is well aligned with the aims of my research programme. Many of these vendors offer a bespoke software solution to run and analyse experiments and the software advances made by myself in partnership with The Alan Turing Institute would be anticipated to be highly attractive to these vendors, but also to the dedicated producers of mass spectrometry and structural biology software, like GeneData, Sierra Analytics and Schrodinger.
The data science and artificial intelligence community: The data science community comprises public sector stakeholders, such as The Alan Turing Institute and intelligence agencies (GCHQ; MI5), as well as private sector organisations, which includes large global companies like Google, but also smaller start-up ventures in the UK, like MonolithAI.
People whose lives are impacted by genetic disease: Sufferers of disease and those that care for them, stand to benefit from the objectives of my work, including those living with cystic fibrosis, Tay-Sachs, phenylketonuria and sickle cell anaemia.
Educators and students: Science educators in the public sector, ranging from early school age through to popular science communication.
The arts: Communities of artists and scientists at the science/art-interface, such as artist Gemma Anderson and academic scientist Dr Ljiljiana Fruk.

Impact Objectives
1. To enable the direct discovery of emergent classes of medicine in the pharmaceutical industry ('allosteric' drugs), providing proof of principle by 2027 for a secondary screening technology that can be deployed in pharmaceutical companies, such as AstraZeneca, to create new drug products.
2. To create protocols and tools that create data-driven models of protein movement during catalysis and in response to drugs, enabling new products to be discovered by pharmaceutical and biotechnology organisations.
3. To generate new paradigms and tools for the efficient acquisition and visualisation of time-resolved data for analysts in public/private sectors who work with sparse, noisy, expensive and high-dimensional data.
4. An ultimate goal of this work is to improve the quality of life for those affected by genetic disease by developing new and efficient base editing tools as personalised therapies.
5. To transform the ways we have of knowing what is meant by movement and change for molecules, broadening the understanding of molecular science within the art community by developing art/science tools, methods and artistic works that will explore how we can view biology as a process. I will contribute to exhibitions, published books and manuscripts and drawing workshops. The development of novel educational tools is of particular benefit to engage school aged students with nanoscale science.

Publications

10 25 50
 
Description We have developed a novel method to enable protein molecules to be observed at high resolution as they function and respond to their environment. The functions that can be measured in this way are exceptionally broad, including: enzyme catalysis and inhibition by drugs.
Exploitation Route We are about to publish the methodology so that this approach can be used by the whole molecular biology, biotechnology and pharmaceutical communities. They will gain a new dynamic structural biology understanding of how key proteins function in natural, disease and medical contexts.
Sectors Chemicals,Manufacturing, including Industrial Biotechology,Pharmaceuticals and Medical Biotechnology

 
Description Our published software (HDfleX) has been used by other academic researchers and there is now interest in its use by biotechnology organisations globally. Our co-developed novel methods and instrumentation have resulted in commercialisation work by Thermo Fisher Scientific (ongoing).
First Year Of Impact 2022
Sector Manufacturing, including Industrial Biotechology,Pharmaceuticals and Medical Biotechnology
Impact Types Economic

 
Description APL 
Organisation Applied Photophysics Ltd
Country United Kingdom 
Sector Private 
PI Contribution My research team lead a seven year funded UKRI FLF project to develop proof of principle and supporting methods for the experimental measurement of transient (non-equilibrium) protein structures by hydrogen/deuterium-exchange mass spectrometry (HDX-MS). We co-developed the underlying instrumentation with APL, where my lab was the primary experimental site and we continue this partnership to maximise its potential for high spatiotemporal resolution HDX-MS.
Collaborator Contribution APL contribute intrument hardware and software development and associated costs, including the time and travel for senior engineers.
Impact Three manuscripts (two preprint, one in peer reviewed journal currently). A biotechnology start up entity has been founded.
Start Year 2017
 
Description Cryptochrome: structural dynamics of the avian molecular compass 
Organisation University of Exeter
Department School of Physics
Country United Kingdom 
Sector Academic/University 
PI Contribution Methods to study protein structural dynamics of cryptochrome proteins under magnetic field effect conditions. Development of a novel assay to directly measure magnetic field effects in proteins in solution.
Collaborator Contribution Knowledge of magnetic field effect conditions, how to establish the necessary systems and conditions.
Impact Two joint PhD studentships funded by EPSRC and BBSRC. Joint BBSRC grant proposal (unsuccessful). Joint BBSRC grant proposal (in review). Joint seed funding awarded (11000 GBP).
Start Year 2020
 
Description Single amino acid HDX-MS at single millisecond resolution 
Organisation Thermo Fisher Scientific
Country United States 
Sector Private 
PI Contribution Novel methodology and prototype instrumentation for single millisecond HDX-MS. Biological expertise in molecular neuroscience of alpha synuclein relating to Parkinson's disease pathophysiology.
Collaborator Contribution Expertise and instrumentation in high structural resolution 2d-LC mass spectrometry.
Impact Poster at global mass spectrometry conference ASMS (Houston,US 2023).
Start Year 2022
 
Title HDfleX 
Description We developed HDfleX, a standalone application for the analysis of flexible high structural resolution of HDX-MS data, which allows data at any level of structural resolution (intact protein, peptide, fragment) to be merged. HDfleX features rapid experimental data fitting, robust statistical significance analyses, and optional methods for theoretical intrinsic calculations and a novel empirical correction for comparison between solution conditions. 
Type Of Technology Software 
Year Produced 2022 
Impact Discussion with commercial organisations to potentially extend our tools for wider impact/scope. 
URL https://pubs.acs.org/doi/10.1021/acs.analchem.1c05339
 
Company Name ALLOSTERICA LIMITED 
Description Biotechnology applications of hydrogen/deuterium-exchange mass spectrometry. 
Year Established 2021 
Impact Work is at an early stage with no notable impacts to report at this time.
 
Description School visit (virtual) 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Schools
Results and Impact Small class of local secondary school pupils with interest in studying science at university attended a virtual (Covid lockdown period) interview and debate with me. I presented my research focus in accessible terms and this created many follow up questions from the highly articulate pupils. The pupils took notes and created an article for wider local dissemination afterwards.
Year(s) Of Engagement Activity 2021