3RJO

Crystal Structure of ERAP1 Peptide Binding Domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.196 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural insights into the molecular ruler mechanism of the endoplasmic reticulum aminopeptidase ERAP1.

Gandhi, A.Lakshminarasimhan, D.Sun, Y.Guo, H.C.

(2011) Sci Rep 1: 186-186

  • DOI: 10.1038/srep00186
  • Primary Citation of Related Structures:  
    3RJO, 5J5E

  • PubMed Abstract: 
  • Endoplasmic reticulum aminopeptidase 1 (ERAP1) is an essential component of the immune system, because it trims peptide precursors and generates the N--restricted epitopes. To examine ERAP1's unique properties of length- and sequence-dependent processing ...

    Endoplasmic reticulum aminopeptidase 1 (ERAP1) is an essential component of the immune system, because it trims peptide precursors and generates the N--restricted epitopes. To examine ERAP1's unique properties of length- and sequence-dependent processing of antigen precursors, we report a 2.3 Å resolution complex structure of the ERAP1 regulatory domain. Our study reveals a binding conformation of ERAP1 to the carboxyl terminus of a peptide, and thus provides direct evidence for the molecular ruler mechanism.


    Organizational Affiliation

    Department of Biological Sciences, University of Massachusetts Lowell, 1 University Avenue, Lowell, MA 01854, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Endoplasmic reticulum aminopeptidase 1 A419Homo sapiensMutation(s): 0 
Gene Names: ERAP1APPILSARTS1KIAA0525UNQ584/PRO1154
EC: 3.4.11
Find proteins for Q9NZ08 (Homo sapiens)
Explore Q9NZ08 
Go to UniProtKB:  Q9NZ08
NIH Common Fund Data Resources
PHAROS:  Q9NZ08
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download Ideal Coordinates CCD File 
A
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.196 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.84α = 90
b = 67.31β = 110.25
c = 65.92γ = 90
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
CBASSdata collection
HKL-2000data reduction
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-12-21
    Type: Initial release
  • Version 1.1: 2012-03-07
    Changes: Database references