Article
Leu-574 of human HIF-1alpha is a molecular determinant of prolyl hydroxylation.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology - 1 Jun 2004
Kageyama Yukio, Koshiji Minori, To Kenneth K W, Tian Ya-Min, Ratcliffe Peter J, Huang L Eric
Abstract excerpt
Hypoxia-inducible factor (HIF)-1alpha, a master regulator of oxygen homeostasis, regulates genes crucial for cell growth and survival. In normoxia, HIF-1alpha is constantly degraded via the ubiquitin-proteasome pathway. The von Hippel-Lindau (VHL) E3 ubiquitin ligase binds HIF-1alpha through specific recognition of hydroxylated Pro-402 or Pro-564, both of which are modified by the oxygen-dependent HIF prolyl...
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