Web30 de abr. de 2002 · The 1.85 angstrom structure of a 20-residue HIF-1alpha peptide-pVHL-ElonginB-ElonginC complex shows that HIF-1alpha binds to pVHL in an extended beta strand-like conformation. The hydroxyproline inserts into a gap in the pVHL hydrophobic core, at a site that is a hotspot for tumorigenic mutations, with its 4-hydroxyl group … Web12 de abr. de 2024 · The metabolic enzymes involved in one-carbon metabolism are closely associated with tumor progression and could be potential targets for cancer therapy. Recent studies showed that serine hydroxymethyltransferase 2 (SHMT2), a crucial enzyme in the one-carbon metabolic pathway, plays a key role in tumor proliferation and development. …
HIF-1α binding to VHL is regulated by stimulus-sensitive proline ...
WebIn VHL-defective cells, HIF-alpha subunits were constitutively stabilized and HIF1 was activated. Reexpression of VHL restored oxygen-dependent instability. VHL and HIF-alpha subunits coimmunoprecipitated, and VHL was present in the hypoxic HIF1 DNA-binding complex. In cells exposed to iron chelation or cobaltous ions, HIF1 is dissociated from VHL. Web1 de mar. de 2007 · Qualitative analysis of VHL and HIF-1α/-2α mRNA expression in RCC lines. We next investigated the expression of VHL mRNA by RT–PCR. No VHL mRNA could be detected in the 769-P cells ( Figure 2).Since treatment with the demethylating agent 5′-aza-2′-deoxycytidine (5-aza-dC) restored the expression of VHL mRNA in 769-P cells … how heart and lungs work together
细胞信号通路详解之HIF1α通路_-Alpha - 搜狐
Web21 de ago. de 2006 · Given this, we considered VHL-mediated ubiquitination via P564 and K532, K538 and K547 ubiquitin acceptors to be the primary mode of VHL-mediated ubiquitination in our experiments, even though … Web9 de mai. de 2002 · HIF-1 alpha is the oxygen-regulated subunit of HIF-1, an alpha beta heterodimeric complex. HIF-1 alpha is stable in hypoxia, but in the presence of oxygen it is targeted for proteasomal degradation by the ubiquitination complex pVHL, the protein of the von Hippel Lindau (VHL) tumour suppressor gene and a component of an E3 ubiquitin … WebWe found that 7 had rare germline missense variants in HIF1A, 6 had rare germline missense variants in VHL, and 3 had IDH1 variants including 2 with mosaic IDH1-p.Arg132His variant. A burden analysis using 94 probands assigned as cases and 2,054 unrelated individuals presenting no OD- or MS-related features as controls, ... how heart attacks impact your body