Dr Stephen McLaughlin

Stephen McLaughlin

University position

Biophysicist

Departments

Department of Biochemistry

Institutes

Medical Research Council Laboratory of Molecular Biology

Email

stephenm@mrc-lmb.cam.ac.uk

Home page

http://www2.mrc-lmb.cam.ac.uk/

Research Theme

Physics / Biophysics

Interests

I have expertise in a wide range of biophysical techniques to characterise protein-protein and protein-ligand interactions to understand complex formation and aid assay development.

I am also interested in the mechanism of the abundant, cytosolic heat shock protein 90 (Hsp90), a molecular chaperone whose activity is crucial for the maintenance of the transformed state. Hsp90 faciliatates the activation and assembly of oncogenic proteins involved in key regulatory pathways in cancer including kinases, polymerases and transcription factors. Consequently, Hsp90 is now regarded as an important therapeutic target. There are several Hsp90 directed anti-tumour drugs in development and clinical trials.

Research Focus

Keywords

Assay

Kinase

Hsp90

Chaperone

ATPase

Cancer sites

No direct clinical relevance

Equipment

Analytical Ultracentrifugation

Circular dichroism

Fluorescence polarisation assays

Fluorescence: steady-steady state and stopped-flow

HPLC/FPLC

Isothermal titration calorimetry

Protein biochemistry

Protein purification

Recombinant protein expression

Small-molecule microarrays

Surface plasmon resonance

Key publications

McLaughlin SH, Sobott F, Yao, Z. P, Zhang W, Nielsen PR, Grossmann GJ, Laue ED, Robinson CV, and Jackson SE (2006), “The co-chaperone p23 arrests the Hsp90 ATPase cycle to trap client proteins. J, Mol”, Biol 356:746–758

McLaughlin SH, Ventouras, L. A, Lobbezoo B, and Jackson SE (2004), “Independent ATPase activity of Hsp90 subunits creates a flexible assembly platform. J, Mol”, Biol 344:813–826

McLaughlin SH, Smith HW, and Jackson SE (2002), “Stimulation of the weak ATPase activity of human Hsp90 by a client protein. J, Mol”, Biol 315:787–798

Collaborators

No collaborators listed