Recombinant expression in E. coli of human FGFR2 with its transmembrane and extracellular domains
Date
2017
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Abstract
Fibroblast growth factor receptors (FGFRs) are a family of receptor tyrosine kinases containing three domains: an extracellular receptor domain, a single transmembrane helix, and an intracellular tyrosine kinase domain. FGFRs are activated by fibroblast growth factors (FGFs) as part of complex signal transduction cascades regulating angiogenesis, skeletal formation, cell differentiation, proliferation, cell survival, and cancer. We have developed the first recombinant expression system in E. coli to produce a construct of human FGFR2 containing its transmembrane and extracellular receptor domains. We demonstrate that the expressed construct is functional in binding heparin and dimerizing. Size exclusion chromatography demonstrates that the purified FGFR2 does not form a complex with FGF1 or adopts an inactive dimer conformation. Progress towards the successful recombinant production of intact FGFRs will facilitate further biochemical experiments and structure determination that will provide insight into how extracellular FGF binding activates intracellular kinase activity.
Description
Research article
Keywords
Biochemistry, Cancer--Research
Citation
Bajinting and Ng (2017), Recombinant expression in E. coli of human FGFR2 with its transmembrane and extracellular domains. PeerJ 5:e3512; DOI 10.7717/peerj.3512
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14
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Creative Commons CC-BY 4.0
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