Article
Mechanism of LDL binding and release probed by structure-based mutagenesis of the LDL receptor.
Journal of lipid research - 1 Feb 2010
Huang Sha, Henry Lisa, Ho Yiu Kee, Pownall Henry J, Rudenko Gabby
Abstract excerpt
The LDL receptor (LDL-R) mediates cholesterol metabolism in humans by binding and internalizing cholesterol transported by LDL. Several different molecular mechanisms have been proposed for the binding of LDL to LDL-R at neutral plasma pH and for its release at acidic endosomal pH. The crystal structure of LDL-R at acidic pH shows that the receptor folds back on itself in a closed form, obscuring parts of the...
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