Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 35.36 kDa 
• Atom Count: 2678 
• Residue Count: 321 
• Unique protein chains: 1

1QP1

KAPPA VARIABLE LIGHT CHAIN

• DOI: 10.2210/pdb1QP1/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1999-05-30 Released: 1999-06-17 
• Deposition Author(s): Steinrauf, L.K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.06 Å
• R-Value Free: 0.212 
• R-Value Work: 0.153 
• R-Value Observed: 0.188 

Literature

Molecular structure of the amyloid-forming protein kappa I Bre.

Steinrauf, L.K., Chiang, M.Y., Shiuan, D.

(1999) J Biochem 125: 422-429

• PubMed: 9990143 
• DOI: 10.1093/oxfordjournals.jbchem.a022303
• Primary Citation of Related Structures:  
  1QP1


• PubMed Abstract: 
  

The molecular structure of the amyloid-forming Bence-Jones protein kappa I Bre has been determined by X-ray crystallography at 2.0 A resolution. The fragment from the kappa chain of immunoprotein contains 107 amino acid residues, and polymerizes in the crystal form into a giant helical spiral, surrounding a cylinder of water 50 A in diameter with a repeat of 77.56 A, containing 12 kappa molecules, plus another 12 molecules from neighboring parallel spirals. The resulting structure has many features which have been found or suggested from studies on the protein fibrils found in amyloid deposits. From the results of the X-ray crystal structure a hypothesis is presented for the structure and formation of the amyloid fibril.

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Related Citations: 

• Structure of an Immunoglubulin Kappa Variable Light Chain Associated with Primary Amyloidosis
  Steinrauf, L.K., Hamilton, J.A., Clawson, D., Liepnieks, J., Murrell, J., Benson, M.D.
  (1993) Am Cryst Assoc ,abstr Papers (annual Meeting) --: 128

• Tertiary Structure of an Amyloid Immunoglobulin Light Chain Protein: A Proposed Model for Amyloid Fibril Formation
  Schormann, N., Murrell, J.R., Liepnieks, J.R., Benson, M.D.
  (1995) Proc Natl Acad Sci U S A 92: 9490

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Organizational Affiliation: 

Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, USA. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BENCE-JONES KAPPA I ANTIBODY BRE (LIGHT CHAIN)	A, B, C	107	Homo sapiens	Mutation(s): 0  Gene Names: IGKV1-33
Find proteins for P01594 (Homo sapiens) Explore P01594  Go to UniProtKB:  P01594
NIH Common Fund Data Resources
GTEx  ENSG00000242076

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.06 Å
• R-Value Free: 0.212 
• R-Value Work: 0.153 
• R-Value Observed: 0.188 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 143.99	α = 90
b = 82.56	β = 90
c = 77.56	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
SHELXL-97	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1999-05-30 
• Released Date: 1999-06-17 
Deposition Author(s): Steinrauf, L.K.

Revision History 

• Version 1.0: 1999-06-17
  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: 2017-10-04
  Changes: Refinement description