Expression and purification of functional insulin and insulin-like growth factor 1 holoreceptors from mammalian cells.
Expression and purification of functional insulin and insulin-like growth factor 1 holoreceptors from mammalian cells.
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DOI:
10.1016/j.ab.2017.08.011
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发表时间:
2017-11-01
影响因子:
2.9
通讯作者:
Miller WT
中科院分区:
文献类型:
--
作者:
Delle Bovi RJ;Miller WT
The insulin receptor (IR) and insulin-like growth factor 1 receptor (IGF1R) are receptor tyrosine kinases (RTKs) involved in the regulation of many important cellular processes. The current proposed models of activation are derived from structural studies using soluble extracellular domains and cytoplasmic tyrosine kinase domains. Preparations of full length IR and IGF1R have been hampered by the need for unconventional affinity chromatography resins and/or harsh eluting conditions. Here, we present a purification protocol to obtain full-length, detergent solubilized IR and IGF1R at quantities suitable for biochemical and structural characterization. We screened a panel of 24 structurally diverse detergents for optimal ligand activation. The receptors purified in n-dodecyl-β-D-maltoside showed ligand-stimulated autophosphorylation and kinase activity, suggesting an intact transmembrane signaling mechanism. This convenient purification protocol can be used to produce high quantities of IR, IGF1R, or other RTKs, and can be adapted for other challenging membrane proteins.
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影响因子:
2.7
作者:
Geiser, M;Cèbe, R;Schmitz, R
通讯作者:
Schmitz, R
影响因子:
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Hubbard, SR
通讯作者:
Hubbard, SR
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BARKER, SC;KASSEL, DB;KNIGHT, WB
通讯作者:
KNIGHT, WB
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Garrett, TPJ;McKern, NM;Ward, CW
通讯作者:
Ward, CW
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ELLIS, L;CLAUSER, E;RUTTER, WJ
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RUTTER, WJ