1F8T

FAB (LNKB-2) OF MONOCLONAL ANTIBODY, CRYSTAL STRUCTURE

• PDB DOI: https://doi.org/10.2210/pdb1F8T/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Mus musculus
• Mutation(s): No 


• Deposited: 2000-07-05 Released: 2001-07-05 
• Deposition Author(s): Fokin, A.V., Afonin, P.V., Mikhailova, I.I., Tsygannik, I.N., Mareeva, T.I.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.221 
• R-Value Work: 0.171 

Literature

Spatial structure of a Fab-fragment of a monoclonal antibody to human interleukin-2 in two crystalline forms at a resolution of 2.2 and 2.9 angstroms

Fokin, A.V., Afonin, P.V., Mikhailova, I.I.u., Tsygannik, I.N., Mareeva, T.I.u., Nesmeianov, V.A., Pangborn, W., Lee, N., Duax, W., Siszak, E., Pletnev, V.Z.

(2000) Bioorg Khim 26: 571-578

• PubMed: 11040993 
• Primary Citation of Related Structures:  
  1F8T


• PubMed Abstract: 
  

  The three-dimensional structure of the antigen-binding fragment of a monoclonal antibody to human interleukin-2 was determined in two crystal forms by the X-ray method of molecular replacement at 2.2 and 2.9 A resolutions. The spatial structure of the protein and the stereochemistry of its antigen-binding site were analyzed.

---

Organizational Affiliation: 

Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.

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: 48.06 kDa 
• Atom Count: 3,593 
• Modelled Residue Count: 439 
• Deposited Residue Count: 439 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ANTIBODY FAB FRAGMENT (LIGHT CHAIN)	A [auth L]	219	Mus musculus	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
ANTIBODY FAB FRAGMENT (HEAVY CHAIN)	B [auth H]	220	Mus musculus	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.221 
• R-Value Work: 0.171 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 72.24	α = 90
b = 72.01	β = 90
c = 86.99	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	model building
CNS	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-07-05 
Deposition Author(s): Fokin, A.V., Afonin, P.V., Mikhailova, I.I., Tsygannik, I.N., Mareeva, T.I.

Revision History  

• Version 1.0: 2001-07-05
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2018-04-04
  Changes: Data collection
• Version 1.4: 2024-11-20
  Changes: Data collection, Database references, Structure summary