1T0P

Structural Basis of ICAM recognition by integrin alpahLbeta2 revealed in the complex structure of binding domains of ICAM-3 and alphaLbeta2 at 1.65 A

• PDB DOI: https://doi.org/10.2210/pdb1T0P/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Escherichia coli, Cricetulus griseus
• Mutation(s): Yes 


• Deposited: 2004-04-12 Released: 2005-03-08 
• Deposition Author(s): Song, G., Yang, Y.T., Liu, J.H., Shimaoko, M., Springer, T.A., Wang, J.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.66 Å
• R-Value Free: 0.241 
• R-Value Work: 0.220 

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 29.4 kDa 
• Atom Count: 2,219 
• Modelled Residue Count: 260 
• Deposited Residue Count: 261 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Integrin alpha-L	A	175	Homo sapiens	Mutation(s): 2
UniProt & NIH Common Fund Data Resources
Find proteins for P20701 (Homo sapiens) Explore P20701  Go to UniProtKB:  P20701
PHAROS:  P20701 GTEx:  ENSG00000005844

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Intercellular adhesion molecule-3	B	86	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P32942 (Homo sapiens) Explore P32942  Go to UniProtKB:  P32942
PHAROS:  P32942 GTEx:  ENSG00000076662

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	D [auth B], E [auth B]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
MG	C [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.66 Å
• R-Value Free: 0.241 
• R-Value Work: 0.220 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.463	α = 90
b = 66.471	β = 90
c = 110.816	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
SCALEPACK	data scaling
AMoRE	phasing
CNS	refinement
HKL-2000	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-03-08 
Deposition Author(s): Song, G., Yang, Y.T., Liu, J.H., Shimaoko, M., Springer, T.A., Wang, J.H.

Revision History  

• Version 1.0: 2005-03-08
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Database references, Derived calculations, Structure summary
• Version 1.4: 2021-10-27
  Changes: Database references, Structure summary