Grb7-SH2 domain dimerisation is affected by a single point mutation. Porter, C., Wilce, M., Mackay, J., Leedman, P., & Wilce, J. European Biophysics Journal, 34(5):454-460, 2005. cited By 24Paper doi abstract bibtex Growth factor receptor bound protein 7 (Grb7) is an adaptor protein that is co-overexpressed and forms a tight complex with the ErbB2 receptor in a number of breast tumours and breast cancer cell lines. The interaction of Grb7 with the ErbB2 receptor is mediated via its Src homology 2 (SH2) domain. Whilst most SH2 domains exist as monomers, recently reported studies have suggested that the Grb7-SH2 domain exists as a homodimer. The self-association properties of the Grb7-SH2 domain were therefore studied using sedimentation equilibrium ultracentrifugation. Analysis of the data demonstrated that the Grb7-SH2 domain is dimeric with a dissociation constant of approximately 11 μM. We also demonstrate, using size-exclusion chromatography, that mutation of phenylalanine 511 to an arginine produces a monomeric form of the Grb7-SH2 domain. This mutation represents the first step in the engineering of a Grb7-SH2 domain with good solution properties for further biophysical and structural investigation. © EBSA 2005.
@ARTICLE{Porter2005454,
author={Porter, C.J. and Wilce, M.C.J. and Mackay, J.P. and Leedman, P. and Wilce, J.A.},
title={Grb7-SH2 domain dimerisation is affected by a single point mutation},
journal={European Biophysics Journal},
year={2005},
volume={34},
number={5},
pages={454-460},
doi={10.1007/s00249-005-0480-1},
note={cited By 24},
url={https://www.scopus.com/inward/record.uri?eid=2-s2.0-22844435175&doi=10.1007%2fs00249-005-0480-1&partnerID=40&md5=80176ab821b1958b0ba96861c0a7da52},
affiliation={School of Biomedical and Chemical Sciences, University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia; School of Medicine and Pharmacology, University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia; Western Australian Institute for Medical Research, University of Western Australia, 35 Stirling Highway, Perth, WA 6009, Australia; School of Molecular and Microbial Biosciences, University of Sydney, Sydney, NSW 2006, Australia},
abstract={Growth factor receptor bound protein 7 (Grb7) is an adaptor protein that is co-overexpressed and forms a tight complex with the ErbB2 receptor in a number of breast tumours and breast cancer cell lines. The interaction of Grb7 with the ErbB2 receptor is mediated via its Src homology 2 (SH2) domain. Whilst most SH2 domains exist as monomers, recently reported studies have suggested that the Grb7-SH2 domain exists as a homodimer. The self-association properties of the Grb7-SH2 domain were therefore studied using sedimentation equilibrium ultracentrifugation. Analysis of the data demonstrated that the Grb7-SH2 domain is dimeric with a dissociation constant of approximately 11 μM. We also demonstrate, using size-exclusion chromatography, that mutation of phenylalanine 511 to an arginine produces a monomeric form of the Grb7-SH2 domain. This mutation represents the first step in the engineering of a Grb7-SH2 domain with good solution properties for further biophysical and structural investigation. © EBSA 2005.},
author_keywords={Analytical ultracentrifugation; Growth factor receptor bound protein 7; Protein engineering; Size-exclusion chromatography; Src homology 2 domain},
keywords={adaptor protein; arginine; dimer; growth factor receptor; growth factor receptor bound protein 7; monomer; phenylalanine; unclassified drug, article; breast cancer; cancer cell culture; gel permeation chromatography; protein domain; protein engineering; protein expression; protein interaction; sedimentation; Src homology domain; ultracentrifugation, Arginine; Biophysics; Cell Line, Tumor; Chromatography; Dimerization; Dose-Response Relationship, Drug; Escherichia coli; Humans; Hydrogen-Ion Concentration; Models, Statistical; Molecular Conformation; Mutagenesis, Site-Directed; Mutation; Phenylalanine; Plasmids; Point Mutation; Protein Binding; Protein Engineering; Protein Structure, Tertiary; src Homology Domains; Ultracentrifugation},
correspondence_address1={Wilce, J.A.; School of Biomedical and Chemical Sciences, 35 Stirling Highway, Perth, WA 6009, Australia; email: Jackie.wilce@med.monash.edu.au},
issn={01757571},
coden={EBJOE},
pubmed_id={15841400},
language={English},
abbrev_source_title={Eur. Biophys. J.},
document_type={Article},
source={Scopus},
}
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