3ULR

Lysozyme contamination facilitates crystallization of a hetero-trimericCortactin:Arg:Lysozyme complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.184 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Lysozyme contamination facilitates crystallization of a heterotrimeric cortactin-Arg-lysozyme complex.

Liu, W.Macgrath, S.M.Koleske, A.J.Boggon, T.J.

(2012) Acta Crystallogr.,Sect.F 68: 154-158

  • DOI: 10.1107/S1744309111056132

  • PubMed Abstract: 
  • Crystallization of contaminating proteins is a frequently encountered problem for macromolecular crystallographers. In this study, an attempt was made to obtain a binary cocrystal structure of the SH3 domain of cortactin and a 17-residue peptide from ...

    Crystallization of contaminating proteins is a frequently encountered problem for macromolecular crystallographers. In this study, an attempt was made to obtain a binary cocrystal structure of the SH3 domain of cortactin and a 17-residue peptide from the Arg nonreceptor tyrosine kinase encompassing a PxxPxxPxxP (PxxP1) motif. However, cocrystals could only be obtained in the presence of trace amounts of a contaminating protein. A structure solution obtained by molecular replacement followed by ARP/wARP automatic model building allowed a 'sequence-by-crystallography' approach to discover that the contaminating protein was lysozyme. This 1.65 Å resolution crystal structure determination of a 1:1:1 heterotrimeric complex of Arg, cortactin and lysozyme thus provides an unusual `caveat emptor' warning of the dangers that underpurified proteins harbor for macromolecular crystallographers.


    Organizational Affiliation

    Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Lysozyme C
A
129Gallus gallusMutation(s): 0 
Gene Names: LYZ
EC: 3.2.1.17
Find proteins for P00698 (Gallus gallus)
Go to Gene View: LYZ
Go to UniProtKB:  P00698
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Src substrate cortactin
B
65Mus musculusMutation(s): 0 
Gene Names: Cttn (Ems1)
Find proteins for Q60598 (Mus musculus)
Go to UniProtKB:  Q60598
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Abelson tyrosine-protein kinase 2
C
17Homo sapiensMutation(s): 0 
Gene Names: ABL2 (ABLL, ARG)
EC: 2.7.10.2
Find proteins for P42684 (Homo sapiens)
Go to Gene View: ABL2
Go to UniProtKB:  P42684
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 38.658α = 90.00
b = 57.838β = 90.00
c = 95.513γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
ADSCdata collection
PHASERphasing
HKL-2000data scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-01-11
    Type: Initial release
  • Version 1.1: 2012-02-15
    Type: Database references