Abstract:
:Leprechaunism is an inherited disorder characterized by growth restriction and severe insulin resistance and caused by mutations in the insulin receptor gene. Cells from these patients have defective insulin binding. Fibroblasts from some patients have concomitant defects in other tyrosine kinase receptors, such as those for Insulin-like Growth Factor I (IGF-I) and Epidermal Growth Factor (EGF). In this report, binding of insulin, IGF-I, EGF, and Platelet derived growth factor (PDGF) AA and PDGF-BB is compared among fibroblasts of patients with defined mutations in their insulin receptor gene. Fibroblasts from patient Atl-1, homozygous for a R86P substitution in the insulin receptor, had reduced binding of Platelet-Derived Growth Factor AA (PDGF-AA), a specific ligand for type alpha PDGF receptors. The reduction in PDGF binding impaired the ability of this growth factor to stimulate DNA synthesis.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Longo Ndoi
10.1006/bbrc.1993.2551subject
Has Abstractpub_date
1993-12-15 00:00:00pages
812-7issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(83)72551-9journal_volume
197pub_type
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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doi:10.1016/j.bbrc.2010.09.078
更新日期:2010-10-29 00:00:00
abstract::The baculovirus expression system has been used to express large quantities of various proteins, including membrane receptors. Here, we reveal a novel property of this expression system to be that certain membrane proteins can be displayed on the budded virus itself. We introduced the genes encoding sterol regulatory ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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更新日期:2003-08-15 00:00:00