8FSE | pdb_00008fse

Crystal structure of integrin beta-2 tail bound to the FERM-folded talin head domain

• PDB DOI: https://doi.org/10.2210/pdb8FSE/pdb

• Classification: CELL ADHESION
• Organism(s): Mus musculus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2023-01-09 Released: 2024-07-03 
• Deposition Author(s): Wu, J., Gao, T.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.220 (Depositor), 0.220 (DCC) 
• R-Value Work: 
  0.179 (Depositor), 0.180 (DCC) 
• R-Value Observed: 
  0.181 (Depositor) 

Starting Model: experimental

Literature

Molecular basis of beta 2 integrin activation by talin unveils subunit-specific mechanisms of integrin signaling

Gao, T., Maskalenko, N.A., Kabir, S., Campbell, K.S., Wu, J.

(2025) Cell Rep 44: 115607

• DOI: https://doi.org/10.1016/j.celrep.2025.115607

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Biological Assembly Evidence: assay for oligomerization

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 94.81 kDa 
• Atom Count: 7,063 
• Modeled Residue Count: 756 
• Deposited Residue Count: 822 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Integrin beta-2,Talin-1	A, B	411	Mus musculus	Mutation(s): 0  Gene Names: Itgb2, Tln1, Tln
UniProt
Find proteins for P11835 (Mus musculus) Explore P11835  Go to UniProtKB:  P11835
Find proteins for P26039 (Mus musculus) Explore P26039  Go to UniProtKB:  P26039
UniProt Groups	P11835P26039

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.220 (Depositor), 0.220 (DCC) 
• R-Value Work:  0.179 (Depositor), 0.180 (DCC) 
• R-Value Observed: 0.181 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 66.862	α = 90
b = 110.358	β = 90.04
c = 68.368	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data scaling
PHENIX	refinement
HKL-2000	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-07-03 
Deposition Author(s): Wu, J., Gao, T.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	--

Revision History  

• Version 1.0: 2024-07-03
  Type: Initial release
  
• Version 1.1: 2025-05-07
  Changes: Database references, Structure summary