3BJL

LOC, A LAMBDA 1 TYPE LIGHT-CHAIN DIMER (BENCE-JONES PROTEIN) CRYSTALLIZED IN AMMONIUM SULFATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Observed: 0.165 

wwPDB Validation 3D Report Full Report



Literature

Three quaternary structures for a single protein.

Huang, D.B.Ainsworth, C.F.Stevens, F.J.Schiffer, M.

(1996) Proc Natl Acad Sci U S A 93: 7017-7021

  • DOI: 10.1073/pnas.93.14.7017
  • Primary Citation of Related Structures:  
    3BJL, 4BJL, 1BJM

  • PubMed Abstract: 
  • The structure of a multisubunit protein (immunoglobulin light chain) was solved in three crystal forms, differing only in the solvent of crystallization. The three structures were obtained at high ionic strength and low pH, high ionic strength and high pH, and low ionic strength and neutral pH ...

    The structure of a multisubunit protein (immunoglobulin light chain) was solved in three crystal forms, differing only in the solvent of crystallization. The three structures were obtained at high ionic strength and low pH, high ionic strength and high pH, and low ionic strength and neutral pH. The three resulting "snapshots" of possible structures show that their variable-domain interactions differ, reflecting their stabilities under specific solvent conditions. In the three crystal forms, the variable domains had different rotational and translational relationships, whereas no alteration of the constant domains was found. The critical residues involved in the observed effect of the solvent are tryptophans and histidines located between the two variable domains in the dimeric structure. Tryptophan residues are commonly found in interfaces between proteins and their subunits, and histidines have been implicated in pH-dependent conformation changes. The quaternary structure observed for a multisubunit protein or protein complex in a crystal may be influenced by the interactions of the constituents within the molecule or complex and/or by crystal packing interactions. The comparison of buried surface areas and hydrogen bonds between the domains forming the molecule and between the molecules forming the crystals suggest that, for this system, the interactions within the molecule are most likely the determining factors.


    Related Citations: 
    • Novel Arrangement of Immunoglobulin Variable Domains: X-Ray Crystallographic Analysis of the Lambda-Chain Dimer Bence-Jones Protein Loc
      Chang, C.-H., Short, M.T., Westholm, F.A., Stevens, F.J., Wang, B.-C., Furey Junior, W., Solomon, A., Schiffer, M.
      (1985) Biochemistry 24: 4890

    Organizational Affiliation

    Center for Mechanistic Biology and Biotechnology, Argonne National Laboratory, Argonne, IL 60439-4833, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
LOC - LAMBDA 1 TYPE LIGHT-CHAIN DIMERAB216Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PCA
Query on PCA
A,BL-PEPTIDE LINKINGC5 H7 N O3GLN
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Observed: 0.165 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 149.3α = 90
b = 72.4β = 90
c = 46.5γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
PROLSQrefinement
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-12-07
    Type: Initial release
  • Version 1.1: 2008-03-25
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 2.0: 2019-12-25
    Changes: Database references, Derived calculations, Other, Polymer sequence