7KOZ

CD1a-36:2 SM binary complex

• PDB DOI: https://doi.org/10.2210/pdb7KOZ/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2020-11-10 Released: 2021-05-05 
• Deposition Author(s): Wegrecki, M., Le Nours, J., Rossjohn, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.246 
• R-Value Work: 0.210 
• R-Value Observed: 0.212 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 46.09 kDa 
• Atom Count: 3,229 
• Modelled Residue Count: 377 
• Deposited Residue Count: 391 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
T-cell surface glycoprotein CD1a	A	285	Homo sapiens	Mutation(s): 0  Gene Names: CD1A
UniProt & NIH Common Fund Data Resources
Find proteins for P06126 (Homo sapiens) Explore P06126  Go to UniProtKB:  P06126
PHAROS:  P06126 GTEx:  ENSG00000158477

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-2-microglobulin	B	106	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

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
WU7 (Subject of Investigation/LOI)	C [auth A]	(4S,7S,17Z)-4-hydroxy-7-[(1S,2E)-1-hydroxyhexadec-2-en-1-yl]-N,N,N-trimethyl-4,9-dioxo-3,5-dioxa-8-aza-4lambda~5~-phosphahexacos-17-en-1-aminium C41 H82 N2 O6 P NBEADXWAAWCCDG-MIWXFSMVSA-O
NAG	G [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
EDO	D [auth A], E [auth A], F [auth A], H [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 0.246 
• R-Value Work: 0.210 
• R-Value Observed: 0.212 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.188	α = 90
b = 90.034	β = 90
c = 105.083	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-05-05 
Deposition Author(s): Wegrecki, M., Le Nours, J., Rossjohn, J.

Revision History  

• Version 1.0: 2021-05-05
  Type: Initial release
  
• Version 1.1: 2021-06-16
  Changes: Database references
• Version 1.2: 2023-10-18
  Changes: Data collection, Database references, Refinement description