University Associate Professor

Research in my group can be divided into two areas, although these share a common theme of engineering metal protein interactions in novel ways.

One goal is to engineer novel proteins and polypeptide based assemblies that can be used in molecular electronic devices and nanotechnology in general. This involves understanding, at a fundamental level, how metal cofactors, particularly heme, is delivered to proteins in vivo and, in the case of c-type cytochromes, how heme is covalently attached to protein. It also involves understanding how functional protein units can be assembled into larger nanoscale assemblies that gain function through the proximity of the constituent monomers.

The other goal is to explore the interaction of 4d and 5d transition metals with proteins, particularly as a possible route to finding novel medicinal compounds. Specifically, Ruthenium organometallic complexes have shown some potential as anti cancer compounds, but little is understood about how the chemistry of Ruthenium interacts with biomolecules.

Research Interests

  • Self Assembly of Proteins into functional materials
  • Heme protein assembly and heme chaperones
  • Electrochemistry of Proteins
  • Heavy metal complexes and ther interaction with Proteins

Watch Dr Barker discuss his research

Publications

The Solution Structure of Oxidized Escherichia coli Cytochrome b562,
F Arnesano, L Banci, I Bertini, J Faraone-Mennella, A Rosato, PD Barker, AR Fersht
Biochemistry
(1999)
38
Verdoheme covalently attached to a modified cytochrome b562 protein: Towards the conversion of a cytochrome to a phytochrome.
JK Rice, PD Barker
BIOPHYS J
(1999)
76
Nε,Nε-dimethyl-lysine cytochrome c as an NMR probe for lysine involvement in protein-protein complex formation
GR Moore, MC Cox, D Crowe, MJ Osborne, FI Rosell, J Bujons, PD Barker, MR Mauk, AG Mauk
Biochemical Journal
(1998)
332
Direct electrochemical studies of cytochromes b(562)
PD Barker, JL Butler, P de Oliveira, HAO Hill, NI Hunt
Inorganica Chimica Acta
(1996)
252
Bis-methionine ligation to heme iron in mutants of cytochrome b562. 1. Spectroscopic and electrochemical characterization of the electronic properties
PD Barker, EP Nerou, MR Cheesman, AJ Thomson, P de Oliveira, HA Hill
Biochemistry
(1996)
35
Bis-Methionine Ligation to Heme Iron in Mutants of Cytochrome b 562. 2. Characterization by NMR of Heme−Ligand Interactions †
PD Barker, SM Freund
Biochemistry
(1996)
35
Analysis of the bimolecular reduction of ferricytochrome c by ferrocytochrome b5 through mutagenesis and molecular modelling.
JG Guillemette, PD Barker, LD Eltis, TP Lo, M Smith, GD Brayer, AG Mauk
Biochimie
(1994)
76
Transmutation of a heme protein.
PD Barker, JC Ferrer, M Mylrajan, TM Loehr, R Feng, Y Konishi, WD Funk, RT MacGillivray, AG Mauk
Proceedings of the National Academy of Sciences of the United States of America
(1993)
90
ELECTROCHEMICAL ADSORPTION OF PEPTIDES AS PROMOTERS OF DIRECT ELECTRON-TRANSFER IN SOLUTIONS WITH DIFFERENT PH ELECTROCHEMICAL STUDIES
AY SAFRONOV, HAO HILL, PD BARKER, K DIGLERIA
RUSSIAN ELECTROCHEMISTRY
(1993)
29
Direct electrochemistry of two genetically distinct flavodoxins isolated from Azotobacter chroococcum grown under nitrogen-fixing conditions
S Bagby, PD Barker, HA Hill, GS Sanghera, B Dunbar, GA Ashby, RR Eady, RN Thorneley
The Biochemical journal
(1991)
277 ( Pt 2)

Telephone number

01223 763096

Email address