1C4Z

STRUCTURE OF E6AP: INSIGHTS INTO UBIQUITINATION PATHWAY


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.237 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of an E6AP-UbcH7 complex: insights into ubiquitination by the E2-E3 enzyme cascade.

Huang, L.Kinnucan, E.Wang, G.Beaudenon, S.Howley, P.M.Huibregtse, J.M.Pavletich, N.P.

(1999) Science 286: 1321-1326

  • Primary Citation of Related Structures:  1D5F

  • PubMed Abstract: 
  • 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 doma ...

    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.


    Organizational Affiliation

    Cellular Biochemistry and Biophysics Program, Howard Hughes Medical Institute, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
UBIQUITIN-PROTEIN LIGASE E3A
A, B, C
358Homo sapiensGene Names: UBE3A (E6AP, EPVE6AP, HPVE6A)
EC: 6.3.2.-
Find proteins for Q05086 (Homo sapiens)
Go to Gene View: UBE3A
Go to UniProtKB:  Q05086
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
UBIQUITIN CONJUGATING ENZYME E2
D
154Homo sapiensGene Names: UBE2L3 (UBCE7, UBCH7)
EC: 2.3.2.23
Find proteins for P68036 (Homo sapiens)
Go to Gene View: UBE2L3
Go to UniProtKB:  P68036
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.237 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 103.400α = 90.00
b = 112.700β = 90.00
c = 123.800γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
MLPHAREphasing
DENZOdata reduction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-11-17
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance