Biological Assembly 1  

 3D View: Structure

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 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: 46.78 kDa 
• Atom Count: 3291 
• Residue Count: 430 
• Unique protein chains: 2

1GGC

MAJOR ANTIGEN-INDUCED DOMAIN REARRANGEMENTS IN AN ANTIBODY

• DOI: 10.2210/pdb1GGC/pdb

• Classification: IMMUNOGLOBULIN
• Organism(s): Mus musculus
• Mutation(s): No 


• Deposited: 1993-07-19 Released: 1993-10-31 
• Deposition Author(s): Takimoto-Kamimura, M., Wilson, I.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Work: 0.190 
• R-Value Observed: 0.190 

Literature

Major antigen-induced domain rearrangements in an antibody.

Stanfield, R.L., Takimoto-Kamimura, M., Rini, J.M., Profy, A.T., Wilson, I.A.

(1993) Structure 1: 83-93

• PubMed: 8069628 
• DOI: 10.1016/0969-2126(93)90024-b
• Primary Citation of Related Structures:  
  1GGC, 1GGB


• PubMed Abstract: 
  

Recent structural results have shown that antibodies use an induced fit mechanism to recognize and bind their antigens. Here we present the crystallographically determined structure of an Fab directed against an HIV-1 peptide (Fab 50.1) in the unliganded state and compare it with the peptide-bound structure. We perform a detailed analysis of the components that contribute to enhanced antigen binding and recognition.

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Related Citations: 

• Crystal Structure of a Human Immunodeficiency Virus Type 1 Neutralizing Antibody, 50.1, In Complex with its V3 Loop Peptide Antigen
  Rini, J.M., Stanfield, R.L., Stura, E.A., Salinas, P.A., Profy, A.T., Wilson, I.A.
  (1993) Proc Natl Acad Sci U S A 90: 6325

• Crystallization, Sequence, and Preliminary Crystallographic Data for an Antipeptide Fab 50.1 And Peptide Complexes with the Principal Neutralizing Determinant of HIV-1 Gp120
  Stura, E.A., Stanfield, R.L., Fieser, G.G., Silver, S., Roguska, M., Hincapie, L.M., Simmerman, H.K.B., Profy, A.T., Wilson, I.A.
  (1992) Proteins 14: 499

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Organizational Affiliation: 

Department of Molecular Biology, Scripps Research Institute, La Jolla, CA 92037.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
IGG2A-KAPPA 50.1 FAB (LIGHT CHAIN)	L	215	Mus musculus	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
IGG2A-KAPPA 50.1 FAB (HEAVY CHAIN)	H	215	Mus musculus	Mutation(s): 0  Gene Names: Igh-1a
Find proteins for P01865 (Mus musculus) Explore P01865  Go to UniProtKB:  P01865

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Work: 0.190 
• R-Value Observed: 0.190 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 83.7	α = 90
b = 110.7	β = 90
c = 56.3	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1993-07-19 
• Released Date: 1993-10-31 
Deposition Author(s): Takimoto-Kamimura, M., Wilson, I.A.

Revision History 

• Version 1.0: 1993-10-31
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance