1S5I

Fab (LNKB-2) of monoclonal antibody to Human Interleukin-2, crystal structure

• PDB DOI: https://doi.org/10.2210/pdb1S5I/pdb

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


• Deposited: 2004-01-21 Released: 2004-05-25 
• Deposition Author(s): Pletnev, V.Z., Goryacheva, E.A., Tsygannik, I.N., Nesmeyanov, V.A., Pletnev, S.V., Pangborn, W., Duax, W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.275 
• R-Value Work: 0.200 
• R-Value Observed: 0.275 

Starting Model: experimental

Literature

[A new crystal form of the Fab fragment of a monoclonal antibody to human interleukin-2: the three-dimensional structure at 2.7 A resolution].

Pletnev, V.Z., Goriacheva, E.A., Tsygannik, I.N., Nesmeianov, V.A., Pletnev, S.V., Pangborn, W., Daux, W.

(null) Bioorg Khim 30: 466-469

• PubMed: 15562966 
• DOI: https://doi.org/10.1023/b:rubi.0000043783.73562.ef
• Primary Citation of Related Structures:  
  1S5I


• PubMed Abstract: 
  

  The three-dimensional structure of the antigen-binding fragment of a monoclonal antibody to human interleukin-2 in a new crystal form (space group P2(1)2(1)2(1); unit cell parameters: a = 42.82, b = 90.68, and c = 139.82 A) was determined by the X-ray molecular replacement method at the resolution of 2.7 A. The protein folding and the stereochemistry of its antigen-binding site were comparatively analyzed. The English version of the paper: Russian Journal of Bioorganic Chemistry, 2004, vol. 30, no. 5; see also http: // www.maik.ru.

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: 48.07 kDa 
• Atom Count: 3,447 
• Modelled Residue Count: 439 
• Deposited Residue Count: 439 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fab-fragment of monoclonal antibody	A [auth L]	219	Mus musculus	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Fab-fragment of monoclonal antibody	B [auth H]	220	Mus musculus	Mutation(s): 0
UniProt
Find proteins for P01869 (Mus musculus) Explore P01869  Go to UniProtKB:  P01869

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.275 
• R-Value Work: 0.200 
• R-Value Observed: 0.275 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.816	α = 90
b = 90.682	β = 90
c = 139.819	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: 2004-05-25 
Deposition Author(s): Pletnev, V.Z., Goryacheva, E.A., Tsygannik, I.N., Nesmeyanov, V.A., Pletnev, S.V., Pangborn, W., Duax, W.

Revision History  

• Version 1.0: 2004-05-25
  Type: Initial release
  
• Version 1.1: 2008-04-29
  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: 2018-04-18
  Changes: Data collection, Database references
• Version 1.5: 2023-08-23
  Changes: Data collection, Database references, Refinement description
• Version 1.6: 2024-10-30
  Changes: Structure summary