PhD Studentship: DRUG-THE-BUG: Determining Druggable Binding Sites in Bacterial Membrane Proteins - #48877

University of Warwick


Date: 1 week ago
City: Coventry
Contract type: Full time

PhD

Coventry

UK Students, EU Students, International Students

Fully funded

Full Time

7th February 2024

29th February 2024

HP2024-09

Supervisors:

Supervisors: Phillip Stansfeld (Chemistry) and Livia Bartok Partay (Chemistry)

Summary:

The bacterial cell envelope is the front-line to killing drug-resistant, pathogenic bacteria. The development of new protein structure prediction methods (e.g. RoseTTA All-Atom AlphaFold and ESMFold) have enabled the accurate computational determination of over 600 million protein structures. This dataset enables the study of entire bacterial membrane proteomes from the perspective of structure-based drug discovery. As part of this Cresset-sponsored PhD studentship (https://www.cresset-group.com), you will develop and apply methods to identify and characterize binding pockets, predict candidate small molecule and antibody binding, and perform free energy calculations of molecules bound to folded protein structures. The overall aim of this PhD proposal is to develop blueprints for new medicines to treat drug-resistant bacterial infections.

The development of the AI-based protein structure prediction software, AlphaFold2, has enabled the accurate computational determination of over 130,000,000 individual protein structures. This dataset enables the study of entire bacterial membrane proteomes from the perspective of structure-based drug discovery. Molecular simulation methods, used in the Stansfeld group, enable the assembly of lipid membranes around protein structures. This allows for a more appropriate description of the protein’s molecular setting and therefore enables full details of the accessibility of binding sites to the surrounding environment. It also permits molecular motions and interactions of both binding sites and potential drug candidates in the context of the lipid membrane. The nested sampling methods developed in the Bartok-Partay group have the potential to be applied to explore the viability of potential binding sites while giving access to the free energy, and to enable unbiased sampling of flexible loop conformational changes around these sites.

Our collaborators at Cresset have created the Flare software, which enables a range of both structure-based and ligand-based computer-aided drug discovery protocols. This includes, but not limited to, binding pocket identification, binding site characterisation, small molecule field descriptors, molecular docking of candidate small molecules to binding sites, and free energy calculations. Our aim is to exploit the developments in AI-based protein structure prediction by developing and applying molecular modelling techniques to define molecular binding sites.

This PhD proposal would ideally suit a student who was interested in developing novel tools and software from the perspective of studying a key biomedical problem. The student will benefit from the extensive biochemical and simulation knowledge within the group and be able to bring to the project their own HetSys skillset, which will be crucial for the development of the robust software code and methodologies.

https://warwick.ac.uk/fac/sci/hetsys/themes/projectopportunities/hp2024-05/

Additional Funding Information

Awards for both UK residents and international applicants pay a stipend to cover maintenance as well as paying the university fees and a research training support. The stipend is at the standard UKRI rate.

For more details visit: https://warwick.ac.uk/fac/sci/hetsys/apply/funding/

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