2V7N

Unusual twinning in crystals of the CitS binding antibody Fab fragment f3p4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.92 Å
  • R-Value Free: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of the Recombinant Antibody Fab Fragment F3P4.

Frey, D.Huber, T.Plueckthun, A.Gruetter, M.G.

(2008) Acta Crystallogr.,Sect.D 64: 636

  • DOI: 10.1107/S0907444908007282

  • PubMed Abstract: 
  • The structure of the antibody Fab fragment f3p4, which was selected from a subset of the synthetic HuCAL antibody library to bind the sodium citrate symporter CitS, is described at 1.92 A resolution. Comparison with computational models revealed devi ...

    The structure of the antibody Fab fragment f3p4, which was selected from a subset of the synthetic HuCAL antibody library to bind the sodium citrate symporter CitS, is described at 1.92 A resolution. Comparison with computational models revealed deviations in a few framework positions and in the binding loops. The crystals belong to space group P2(1)2(1)2 and contain four molecules in the asymmetric unit, with unit-cell parameters a=102.77, b=185.92, c=102.97 A. These particular unit-cell parameters allowed pseudo-merohedral twinning; interestingly, the twinning law relates a twofold screw axis to a twofold axis.


    Organizational Affiliation

    Department of Biochemistry, University of Z├╝rich, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
IMMUNOGLOBULIN LIGHT CHAIN
A, C, E, G
215N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
IMMUNOGLOBULIN HEAVY CHAIN
B, D, F, H
229N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.92 Å
  • R-Value Free: 0.202 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 102.790α = 90.00
b = 185.920β = 90.00
c = 102.990γ = 90.00
Software Package:
Software NamePurpose
SHELXL-97refinement
PHASERphasing
XDSdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-06-17
    Type: Initial release
  • Version 1.1: 2012-05-30
    Type: Database references, Derived calculations, Non-polymer description, Other, Source and taxonomy, Version format compliance