1BQL

STRUCTURE OF AN ANTI-HEL FAB FRAGMENT COMPLEXED WITH BOBWHITE QUAIL LYSOZYME


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.191 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Refined structures of bobwhite quail lysozyme uncomplexed and complexed with the HyHEL-5 Fab fragment.

Chacko, S.Silverton, E.W.Smith-Gill, S.J.Davies, D.R.Shick, K.A.Xavier, K.A.Willson, R.C.Jeffrey, P.D.Chang, C.Y.Sieker, L.C.Sheriff, S.

(1996) Proteins 26: 55-65

  • DOI: 10.1002/(SICI)1097-0134(199609)26:1<55::AID-PROT5>3.0.CO;2-F
  • Primary Citation of Related Structures:  
    1BQL, 1DKK, 1DKJ

  • PubMed Abstract: 
  • The HyHEL-5 antibody has more than a thousandfold lower affinity for bobwhite quail lysozyme (BWQL) than for hen egg-white lysozyme (HEL). Four sequence differences exist between BWQL and HEL, of which only one is involved in the interface with the F ...

    The HyHEL-5 antibody has more than a thousandfold lower affinity for bobwhite quail lysozyme (BWQL) than for hen egg-white lysozyme (HEL). Four sequence differences exist between BWQL and HEL, of which only one is involved in the interface with the Fab. The structure of bobwhite quail lysozyme has been determined in the uncomplexed state in two different crystal forms and in the complexed state with HyHEL-5, an antihen egg-white lysozyme Fab. Similar backbone conformations are observed in the three molecules of the two crystal forms of uncomplexed BWQL, although they show considerable variability in side-chain conformation. A relatively mobile segment in uncomplexed BWQL is observed to be part of the HyHEL-5 epitope. No major backbone conformational differences are observed in the lysozyme upon complex formation, but side-chain conformational differences are seen in surface residues that are involved in the interface with the antibody. The hydrogen bonding in the interface between BWQL and HyHEL-5 is similar to that in previously determined lysozyme-HyHEL-5 complexes.


    Related Citations: 
    • Structure of an antibody-lysozyme complex unexpected effect of conservative mutation.
      Chacko, S., Silverton, E., Kam-Morgan, L., Smith-Gill, S., Cohen, G., Davies, D.
      (1995) J Mol Biol 245: 261
    • Three-dimensional structure of an antibody-antigen complex.
      Sheriff, S., Silverton, E.W., Padlan, E.A., Cohen, G.H., Smith-Gill, S.J., Finzel, B.C., Davies, D.R.
      (1987) Proc Natl Acad Sci U S A 84: 8075

    Organizational Affiliation

    Laboratory of Molecular Biology, NIDDK, NIH, Bethesda, Maryland 20895, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HYHEL-5 FAB (LIGHT CHAIN)L212Mus musculusMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
HYHEL-5 FAB (HEAVY CHAIN)H215Mus musculusMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
BOBWHITE QUAIL LYSOZYMEY129Colinus virginianusMutation(s): 0 
Gene Names: LYZ
EC: 3.2.1.17
Find proteins for P00700 (Colinus virginianus)
Explore P00700 
Go to UniProtKB:  P00700
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PCA
Query on PCA
HL-PEPTIDE LINKINGC5 H7 N O3GLN
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.191 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.8α = 90
b = 74.8β = 101.8
c = 79γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-04-20
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-12-20
    Changes: Database references, Other