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1d5f
From Proteopedia
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'''STRUCTURE OF AN E6AP-UBCH7 COMPLEX: INSIGHTS INTO THE UBIQUITINATION PATHWAY''' | '''STRUCTURE OF AN E6AP-UBCH7 COMPLEX: INSIGHTS INTO THE UBIQUITINATION PATHWAY''' | ||
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[[Category: Pavletich, N P.]] | [[Category: Pavletich, N P.]] | ||
[[Category: Wang, G.]] | [[Category: Wang, G.]] | ||
| - | [[Category: | + | [[Category: Bilobal structure]] |
| - | [[Category: | + | [[Category: E3 ligase]] |
| - | [[Category: | + | [[Category: Elongated shape]] |
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Revision as of 10:28, 2 May 2008
STRUCTURE OF AN E6AP-UBCH7 COMPLEX: INSIGHTS INTO THE UBIQUITINATION PATHWAY
Overview
The E6AP ubiquitin-protein ligase (E3) mediates the human papillomavirus-induced degradation of the p53 tumor suppressor in cervical cancer and is mutated in Angelman syndrome, a neurological disorder. The crystal structure of the catalytic hect domain of E6AP reveals a bilobal structure with a broad catalytic cleft at the junction of the two lobes. The cleft consists of conserved residues whose mutation interferes with ubiquitin-thioester bond formation and is the site of Angelman syndrome mutations. The crystal structure of the E6AP hect domain bound to the UbcH7 ubiquitin-conjugating enzyme (E2) reveals the determinants of E2-E3 specificity and provides insights into the transfer of ubiquitin from the E2 to the E3.
About this Structure
1D5F is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structure of an E6AP-UbcH7 complex: insights into ubiquitination by the E2-E3 enzyme cascade., Huang L, Kinnucan E, Wang G, Beaudenon S, Howley PM, Huibregtse JM, Pavletich NP, Science. 1999 Nov 12;286(5443):1321-6. PMID:10558980 Page seeded by OCA on Fri May 2 13:28:18 2008
