5IEK | pdb_00005iek

Structure of HLA-B*40:02 in complex with the endogenous peptide REFSKEPEL

• PDB DOI: https://doi.org/10.2210/pdb5IEK/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2016-02-25 Released: 2016-12-07 
• Deposition Author(s): Alpizar, A., Marcilla, M., Santiago, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 
  0.188 (Depositor), 0.190 (DCC) 
• R-Value Work: 
  0.162 (Depositor), 0.167 (DCC) 
• R-Value Observed: 
  0.163 (Depositor) 

Literature

Structure of HLA-B*40:02 in complex with the endogenous peptide REFSKEPEL

Alpizar, A., Marcilla, M., Santiago, C.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 1 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 45.15 kDa 
• Atom Count: 3,716 
• Modeled Residue Count: 385 
• Deposited Residue Count: 386 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HLA class I histocompatibility antigen, B-40 alpha chain	A	277	Homo sapiens	Mutation(s): 0  Gene Names: HLA-B, HLAB
UniProt & NIH Common Fund Data Resources
Find proteins for P01889 (Homo sapiens) Explore P01889  Go to UniProtKB:  P01889
PHAROS:  P01889 GTEx:  ENSG00000234745

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-2-microglobulin	B	100	Homo sapiens	Mutation(s): 0  Gene Names: B2M, CDABP0092, HDCMA22P
UniProt & NIH Common Fund Data Resources
Find proteins for P61769 (Homo sapiens) Explore P61769  Go to UniProtKB:  P61769
PHAROS:  P61769 GTEx:  ENSG00000166710

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
ARG-GLU-PHE-SER-LYS-GLU-PRO-GLU-LEU	C	9	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NQS7 (Homo sapiens) Explore Q9NQS7  Go to UniProtKB:  Q9NQS7
PHAROS:  Q9NQS7 GTEx:  ENSG00000149503

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free:  0.188 (Depositor), 0.190 (DCC) 
• R-Value Work:  0.162 (Depositor), 0.167 (DCC) 
• R-Value Observed: 0.163 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.26	α = 90
b = 82.201	β = 90
c = 111.145	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2016-12-07 
Deposition Author(s): Alpizar, A., Marcilla, M., Santiago, C.

Revision History  

• Version 1.0: 2016-12-07
  Type: Initial release
  
• Version 1.1: 2018-03-07
  Changes: Source and taxonomy
• Version 1.2: 2019-10-16
  Changes: Data collection
• Version 1.3: 2024-10-09
  Changes: Data collection, Database references, Structure summary