View source for 8qu8


==PROTAC-mediated complex of KRAS with VHL/Elongin-B/Elongin-C/Cullin-2/Rbx1==
<StructureSection load='8qu8' size='340' side='right'caption='[[8qu8]], [[Resolution|resolution]] 3.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8qu8]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8QU8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8QU8 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.5&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8qu8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8qu8 OCA], [https://pdbe.org/8qu8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8qu8 RCSB], [https://www.ebi.ac.uk/pdbsum/8qu8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8qu8 ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/VHL_HUMAN VHL_HUMAN] Defects in VHL are a cause of susceptibility to pheochromocytoma (PCC) [MIM:[https://omim.org/entry/171300 171300]. A catecholamine-producing tumor of chromaffin tissue of the adrenal medulla or sympathetic paraganglia. The cardinal symptom, reflecting the increased secretion of epinephrine and norepinephrine, is hypertension, which may be persistent or intermittent.  Defects in VHL are the cause of von Hippel-Lindau disease (VHLD) [MIM:[https://omim.org/entry/193300 193300]. VHLD is a dominantly inherited familial cancer syndrome characterized by the development of retinal angiomatosis, cerebellar and spinal hemangioblastoma, renal cell carcinoma (RCC), phaeochromocytoma and pancreatic tumors. VHL type 1 is without pheochromocytoma, type 2 is with pheochromocytoma. VHL type 2 is further subdivided into types 2A (pheochromocytoma, retinal angioma, and hemangioblastomas without renal cell carcinoma and pancreatic cyst) and 2B (pheochromocytoma, retinal angioma, and hemangioblastomas with renal cell carcinoma and pancreatic cyst). VHL type 2C refers to patients with isolated pheochromocytoma without hemangioblastoma or renal cell carcinoma. The estimated incidence is 3/100000 births per year and penetrance is 97% by age 60 years.<ref>PMID:10635329</ref> <ref>PMID:8493574</ref> <ref>PMID:7987306</ref> <ref>PMID:7728151</ref> <ref>PMID:8634692</ref> <ref>PMID:8592333</ref> <ref>PMID:8825918</ref> <ref>PMID:8730290</ref> <ref>PMID:8956040</ref> <ref>PMID:9452032</ref> <ref>PMID:9452106</ref> <ref>PMID:10627136</ref> <ref>PMID:9829911</ref> <ref>PMID:9829912</ref> [:]<ref>PMID:10533030</ref> <ref>PMID:10408776</ref> <ref>PMID:16502427</ref>   Defects in VHL are the cause of familial erythrocytosis type 2 (ECYT2) [MIM:[https://omim.org/entry/263400 263400]; also called VHL-dependent polycythemia or Chuvash type polycythemia. ECYT2 is an autosomal recessive disorder characterized by an increase in serum red blood cell mass, hypersensitivity of erythroid progenitors to erythropoietin, increased erythropoietin serum levels, and normal oxygen affinity. Patients with ECYT2 carry a high risk for peripheral thrombosis and cerebrovascular events.<ref>PMID:12844285</ref> <ref>PMID:12393546</ref>   Defects in VHL are a cause of renal cell carcinoma (RCC) [MIM:[https://omim.org/entry/144700 144700]. Renal cell carcinoma is a heterogeneous group of sporadic or hereditary carcinoma derived from cells of the proximal renal tubular epithelium. It is subclassified into clear cell renal carcinoma (non-papillary carcinoma), papillary renal cell carcinoma, chromophobe renal cell carcinoma, collecting duct carcinoma with medullary carcinoma of the kidney, and unclassified renal cell carcinoma.<ref>PMID:11986208</ref> 
== Function ==
[https://www.uniprot.org/uniprot/VHL_HUMAN VHL_HUMAN] Involved in the ubiquitination and subsequent proteasomal degradation via the von Hippel-Lindau ubiquitination complex. Seems to act as target recruitment subunit in the E3 ubiquitin ligase complex and recruits hydroxylated hypoxia-inducible factor (HIF) under normoxic conditions. Involved in transcriptional repression through interaction with HIF1A, HIF1AN and histone deacetylases. Ubiquitinates, in an oxygen-responsive manner, ADRB2.<ref>PMID:9751722</ref> <ref>PMID:10944113</ref> <ref>PMID:19584355</ref> 
== References ==
<references/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Arce-Solano S]]
[[Category: Fischer G]]
[[Category: Peter D]]