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Design, Construction and Testing of Recombinant Protein Production Systems for Industrial Biotechnology

Aston University College of Health and Life Sciences
Partially Funded 🎓 Biotechnology 🎓 Health Sciences 🎓 Molecular Biology molecular biology recombinant protein production synthetic biology escherichia coli biopharmaceuticals industrial biotechnology expression systems inducer molecules

Explore innovative bacterial protein production systems using cheap, non-toxic inducers to reduce biopharmaceutical manufacturing costs. Engineer and test E. coli expression platforms with novel control systems driven by alternative molecules like nitrate and urea.

AI-generated overview

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Why This Research Matters

This research could dramatically lower the cost barrier for producing therapeutic proteins by replacing expensive and toxic inducers with cheap and ubiquitous molecules, enabling widespread adoption in low-resource settings. It advances sustainable and accessible biopharmaceutical manufacturing with applications in global health and industrial biotechnology.

Bacterial gene expression Recombinant Protein Production Bacterial chromosome structure Outer membrane biogenesis in Gram-neg

Project Description

Project Overview

This research focuses on engineering novel recombinant protein production (RPP) systems within Escherichia coli by harnessing alternative inducer molecules that are cheap, non-toxic, and widely available, such as nitrate and urea. Current industrial RPP systems rely on expensive and sometimes toxic inducers like IPTG, limiting practical and economic feasibility. Through synthetic biology, this project develops transcription factor-driven expression systems to produce therapeutically and industrially relevant proteins efficiently.

What You Will Do

You will design, construct, and experimentally test new recombinant expression systems responsive to unconventional inducers. The work involves molecular biology techniques to engineer regulatory elements, biochemical assays to measure protein yield, and biotechnological methods to optimize system performance. The project offers extensive training in molecular biology, biochemical methods, and industrial biotechnology applications.

Expected Outcomes

The project expects to deliver novel E. coli expression chassis capable of high-level, tightly controlled recombinant protein production using economical inducers like garden fertilizer components or urine. Demonstrated production of proteins such as human growth hormone (hGH) at competitive yields will highlight the platform’s applicability, especially in low-resource settings.

Why This Matters

By drastically reducing inducer costs and removing toxicity issues, this work could revolutionize affordable biopharmaceutical manufacturing worldwide. It addresses global challenges in therapeutic protein supply and industrial biomanufacturing in resource-limited environments, expanding accessibility and reducing reliance on costly reagents.

Entry Requirements

Candidates should have a First or Upper Second Class undergraduate degree in a relevant subject, OR a First or Upper Second Class undergraduate degree plus a Merit or Distinction in a Masters degree in a relevant subject. Overseas qualifications will be considered if equivalent.

How to Apply

Applications must include transcripts, research statement, personal statement, CV, two academic references, English language evidence, and passport copy. For enquiries contact Dr Douglas Browning at d.browning@aston.ac.uk. Overseas applicants must confirm ability to cover the tuition fee difference. Interviews will be held online.

Eligibility

UK/Home
EU
International

Supervisor Profile

DD
Dr Douglas Browning
Aston University, College of Health and Life Sciences
6405 Citations
36 h-index
Google Scholar

Dr Douglas Browning leads research at Aston University on innovative microbial biotechnology with a focus on recombinant protein production in Escherichia coli. His work applies synthetic biology to engineer novel gene expression systems that are cost-effective and scalable for industrial applications. He is known for pioneering inducers that vastly reduce recombinant protein production costs, aiming to enhance biopharmaceutical accessibility worldwide.

Key Publications

2004 1390 citations
The regulation of bacterial transcription initiation
2016 651 citations
Local and global regulation of transcription initiation in bacteria
2010 390 citations
Modulation of Shigella virulence in response to available oxygen in vivo
2010 381 citations
Effects of nucleoid-associated proteins on bacterial chromosome structure and gene expression
2000 275 citations
Regulation of Acetyl Coenzyme A Synthetase inEscherichia coli

Research Contributions

Elucidation of mechanisms controlling bacterial transcription initiation and gene expression.
Provides fundamental insights into bacterial regulatory systems, facilitating advances in microbiology and biotechnology.
Investigation of bacterial chromosome structure effects mediated by nucleoid-associated proteins.
Enhances understanding of bacterial genome organization influencing gene regulation and cellular function.
Study of bacterial outer membrane biogenesis components and their roles in assembly and virulence.
Informs development of antimicrobial strategies targeting membrane assembly in pathogenic Gram-negative bacteria.
Analysis of how environmental factors like oxygen availability modulate bacterial virulence.
Contributes to knowledge critical for managing infections and bacterial pathogenicity under variable conditions.

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