1u6g
From Proteopedia
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|PDB= 1u6g |SIZE=350|CAPTION= <scene name='initialview01'>1u6g</scene>, resolution 3.1Å | |PDB= 1u6g |SIZE=350|CAPTION= <scene name='initialview01'>1u6g</scene>, resolution 3.1Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand=ZN:ZINC ION'>ZN</scene> | + | |LIGAND= <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= CUL1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), Rbx1, ROC1, RNF75 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), Cand1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |GENE= CUL1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), Rbx1, ROC1, RNF75 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), Cand1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1u6g FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u6g OCA], [http://www.ebi.ac.uk/pdbsum/1u6g PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1u6g RCSB]</span> | ||
}} | }} | ||
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[[Category: Xiong, Y.]] | [[Category: Xiong, Y.]] | ||
[[Category: Zheng, N.]] | [[Category: Zheng, N.]] | ||
| - | [[Category: ZN]] | ||
[[Category: cullin repeat]] | [[Category: cullin repeat]] | ||
[[Category: heat repeat]] | [[Category: heat repeat]] | ||
[[Category: ring finger]] | [[Category: ring finger]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 00:05:59 2008'' |
Revision as of 21:06, 30 March 2008
| |||||||
| , resolution 3.1Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Gene: | CUL1 (Homo sapiens), Rbx1, ROC1, RNF75 (Homo sapiens), Cand1 (Homo sapiens) | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal Structure of The Cand1-Cul1-Roc1 Complex
Overview
The SCF ubiquitin ligase complex regulates diverse cellular functions by ubiquitinating numerous protein substrates. Cand1, a 120 kDa HEAT repeat protein, forms a tight complex with the Cul1-Roc1 SCF catalytic core, inhibiting the assembly of the multisubunit E3 complex. The crystal structure of the Cand1-Cul1-Roc1 complex shows that Cand1 adopts a highly sinuous superhelical structure, clamping around the elongated SCF scaffold protein Cul1. At one end, a Cand1 beta hairpin protrusion partially occupies the adaptor binding site on Cul1, inhibiting its interactions with the Skp1 adaptor and the substrate-recruiting F box protein subunits. At the other end, two Cand1 HEAT repeats pack against a conserved Cul1 surface cleft and bury a Cul1 lysine residue, whose modification by the ubiquitin-like protein, Nedd8, is able to block Cand1-Cul1 association. Together with biochemical evidence, these structural results elucidate the mechanisms by which Cand1 and Nedd8 regulate the assembly-disassembly cycles of SCF and other cullin-dependent E3 complexes.
About this Structure
1U6G is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structure of the Cand1-Cul1-Roc1 complex reveals regulatory mechanisms for the assembly of the multisubunit cullin-dependent ubiquitin ligases., Goldenberg SJ, Cascio TC, Shumway SD, Garbutt KC, Liu J, Xiong Y, Zheng N, Cell. 2004 Nov 12;119(4):517-28. PMID:15537541
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