Biological Assembly 1  

 3D View: Structure | Electron Density

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - AB Pseudo Symmetry: Cyclic - C2  (3D View)
Pseudo Stoichiometry: Homo 2-mer -A2 

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

Macromolecule Content

• Total Structure Weight: 47183.62 
• Atom Count: 3319 
• Residue Count: 435 
• Unique protein chains: 2

1RMF

STRUCTURES OF A MONOCLONAL ANTI-ICAM-1 ANTIBODY R6.5 FRAGMENT AT 2.8 ANGSTROMS RESOLUTION

• DOI: 10.2210/pdb1RMF/pdb

• Classification: IMMUNOGLOBULIN


• Deposited: 1994-12-16 Released: 1995-02-27 
• Deposition Author(s): Jedrzejas, M.J., Luo, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.8 Å
• R-Value Work: 0.188 

Literature

Structure of a monoclonal anti-ICAM-1 antibody R6.5 Fab fragment at 2.8 A resolution.

Jedrzejas, M.J., Miglietta, J., Griffin, J.A., Luo, M.

(1995) Acta Crystallogr.,Sect.D 51: 380-385

• PubMed: 15299305 
• DOI: 10.1107/S0907444994011054


• PubMed Abstract: 
  

The specific binding of the monoclonal murine anti-intercellular adhesion molecule-1 (anti-ICAM-1) antibody, R6.5, inhibits the attachment of neutrophils to endothelium and prevents the attachment of major group human rhinovirus (HRV) to ICAM-1. This binding interferes with the host immune system and, as a result, the R6.5 antibody has been developed as a therapeutic anti-inflammatory and perhaps anti-HRV agent. The variable-region amino-acid sequence of R6.5 was determined from the anti-ICAM-1 cDNA. The crystallization conditions of the Fab fragment of R6.5 were established and the three-dimensional structure was determined by X-ray crystallography. The crystal space group is orthorhombic P2(1)2(1)2(1), a = 40.36, b = 137.76, c = 91.32 A, and the highest resolution of recorded reflections is 2.7 A. The molecular-replacement method using known Fab structures was employed to solve the R6.5 Fab structure. The final R-factor is 18.8% for a total of 3320 non-H protein atoms, 39 water molecules and 10 606 unique reflections. The protein exhibits the typical immunoglobulin fold. The surface contour of the antigen-combining site of the R6.5 antibody has a wide groove which resembles more the structure of an anti-polypeptide antibody than the structure of an anti-protein antibody.

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Organizational Affiliation: 

Center for Macromolecular Crystallography, Department of Microbiology, University of Alabama at Birmingham, 35294, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
IGG2A-KAPPA R6.5 FAB (LIGHT CHAIN)	L	219	N/A	Mutation(s): 0
Protein Feature View is not available: No corresponding UniProt sequence found.

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
IGG2A-KAPPA R6.5 FAB (HEAVY CHAIN)	H	216	N/A	Mutation(s): 0
Protein Feature View is not available: No corresponding UniProt sequence found.

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.8 Å
• R-Value Work: 0.188 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 40.360	α = 90.00
b = 137.760	β = 90.00
c = 91.320	γ = 90.00

Software Package:

Software Name	Purpose
X-PLOR	refinement
X-PLOR	phasing
X-PLOR	model building

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1994-12-16 
• Released Date: 1995-02-27 
• Deposition Author(s): Jedrzejas, M.J., Luo, M.

Revision History 

• Version 1.0: 1995-02-27
  Type: Initial release
• Version 1.1: 2008-03-03
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance