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 tranistion 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.
ELECTRON-TRANSFER BETWEEN FERRICYTOCHROME-C AND FERRO-CYTOCHROME-B5 - DIFFUSION-THEORY AND EXPERIMENT
RG HERBERT, SH NORTHRUP, LD ELTIS, PD BARKER, AG MAUK - BIOPHYS J (1990) 57, A414
FAST 2ND ORDER ELECTRON-TRANSFER REACTIONS COUPLED TO REDOX PROTEIN ELECTROCHEMISTRY - EXPERIMENT AND DIGITAL-SIMULATION
PD BARKER, HAO HILL, NJ WALTON - JOURNAL OF ELECTROANALYTICAL CHEMISTRY (
1989)
260, 303
(DOI:
10.1016/0022-0728(89)87146-3)
Fast second order electron transfer reactions coupled to redox protein electrochemistry. Experiment and digital simulation
PD Barker, HAO Hill, NJ Walton - Journal of Electroanalytical Chemistry (1989) 260, 303
THE DIRECT ELECTROCHEMISTRY OF PROTEIN PROTEIN COMPLEXES
PD BARKER, LH GUO, HAO HILL, GS SANGHERA - BIOCHEMICAL SOCIETY TRANSACTIONS (1988) 16, 957
THE DIRECT ELECTROCHEMISTRY OF FLAVODOXIN FROM AZOTOBACTER-CHROOCOCCUM AT A GRAPHITE ELECTRODE PROMOTED BY AMINOGLYCOSIDES
PD BARKER, HAO HILL, GS SANGHERA, RR EADY, RNF THORNELEY - BIOCHEMICAL SOCIETY TRANSACTIONS (1988) 16, 959
THE DIRECT ELECTROCHEMISTRY OF CYTOCHROME-B5 AT PEPTIDE-MODIFIED GOLD ELECTRODES
S BAGBY, PD BARKER, K DIGLERIA, HAO HILL, VJ LOWE - BIOCHEMICAL SOCIETY TRANSACTIONS (1988) 16, 958
THE ELECTROCHEMISTRY OF PROTEIN-PROTEIN COMPLEXES
PD BARKER, HAO HILL, VJ LOWE, GS SANGHERA - ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY (1988) 195, 151
Direct electrochemical probes of redox protein and redox enzyme structure and function.
PD Barker, HA Hill - Progress in clinical and biological research (1988) 274, 419
THE DIRECT UNMEDIATED ELECTROCHEMISTRY OF PROTEIN PROTEIN COMPLEXES
PD BARKER, HAO HILL - RECUEIL DES TRAVAUX CHIMIQUES DES PAYS-BAS-JOURNAL OF THE ROYAL NETHERLANDS CHEMICAL SOCIETY (1987) 106, 296
INVESTIGATIONS OF CYTOCHROME-OXIDASE USING AMPEROMETRIC TECHNIQUES
PD BARKER, JOD COLEMAN, HAO HILL, NJ WALTON, D WHITFORD - BIOCHEMICAL SOCIETY TRANSACTIONS (1986) 14, 130