Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 23.40 kDa 
• Atom Count: 1920 
• Modelled Residue Count: 206 
• Deposited Residue Count: 211 
• Unique protein chains: 3

3ULR

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

• PDB DOI: 10.2210/pdb3ULR/pdb

• Classification: HYDROLASE, PROTEIN BINDING
• Organism(s): Gallus gallus, Mus musculus, Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2011-11-11 Released: 2012-01-11 
• Deposition Author(s): Liu, W., MacGrath, S., Koleske, A.J., Boggon, T.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.225 
• R-Value Work: 0.184 
• R-Value Observed: 0.186 

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 Struct Biol Cryst Commun 68: 154-158

• PubMed: 22297987 
• DOI: 10.1107/S1744309111056132
• Primary Citation of Related Structures:  
  3ULR


• 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 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.

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Organizational Affiliation: 

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

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Lysozyme C	A	129	Gallus gallus	Mutation(s): 0  Gene Names: LYZ EC: 3.2.1.17
UniProt
Find proteins for P00698 (Gallus gallus) Explore P00698  Go to UniProtKB:  P00698

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Src substrate cortactin	B	65	Mus musculus	Mutation(s): 0  Gene Names: Cttn, Ems1
UniProt & NIH Common Fund Data Resources
Find proteins for Q60598 (Mus musculus) Explore Q60598  Go to UniProtKB:  Q60598
IMPC:  MGI:99695

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Abelson tyrosine-protein kinase 2	C	17	Homo sapiens	Mutation(s): 0  Gene Names: ABL2, ABLL, ARG EC: 2.7.10.2
UniProt & NIH Common Fund Data Resources
Find proteins for P42684 (Homo sapiens) Explore P42684  Go to UniProtKB:  P42684
PHAROS:  P42684 GTEx:  ENSG00000143322

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.225 
• R-Value Work: 0.184 
• R-Value Observed: 0.186 
• Space Group: P 2₁ 2₁ 2₁
• Diffraction Data DOI: 10.15785/SBGRID/553 SBGrid

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 38.658	α = 90
b = 57.838	β = 90
c = 95.513	γ = 90

Software Package:

Software Name	Purpose
ADSC	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2011-11-11 
• Released Date: 2012-01-11 
Deposition Author(s): Liu, W., MacGrath, S., Koleske, A.J., Boggon, T.J.

Revision History  

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