5CBO

Fusion protein of mbp3-16 and B4 domain of protein A from staphylococcal aureus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.802 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Connecting two proteins using a fusion alpha helix stabilized by a chemical cross linker.

Jeong, W.H.Lee, H.Song, D.H.Eom, J.H.Kim, S.C.Lee, H.S.Lee, H.Lee, J.O.

(2016) Nat Commun 7: 11031-11031

  • DOI: 10.1038/ncomms11031
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Building a sophisticated protein nano-assembly requires a method for linking protein components in a predictable and stable structure. Most of the cross linkers available have flexible spacers. Because of this, the linked hybrids have significant str ...

    Building a sophisticated protein nano-assembly requires a method for linking protein components in a predictable and stable structure. Most of the cross linkers available have flexible spacers. Because of this, the linked hybrids have significant structural flexibility and the relative structure between their two components is largely unpredictable. Here we describe a method of connecting two proteins via a 'fusion α helix' formed by joining two pre-existing helices into a single extended helix. Because simple ligation of two helices does not guarantee the formation of a continuous helix, we used EY-CBS, a synthetic cross linker that has been shown to react selectively with cysteines in α-helices, to stabilize the connecting helix. Formation and stabilization of the fusion helix was confirmed by determining the crystal structures of the fusion proteins with and without bound EY-CBS. Our method should be widely applicable for linking protein building blocks to generate predictable structures.


    Organizational Affiliation

    Agency for Defense Development, Daejeon 34186, Korea.,Institute of Biotechnology, Chungnam National University, Daejeon 34134, Korea.,Department of Biological Sciences, KAIST, Daejeon 34141, Korea.,Department of Chemistry, KAIST, Daejeon 34141, Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
mbp3-16,Immunoglobulin G-binding protein A
A, B, C, D, E, F, G, H, I, J, K, L
176Staphylococcus aureusMutation(s): 5 
Gene Names: spa
Find proteins for P38507 (Staphylococcus aureus)
Go to UniProtKB:  P38507
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.802 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.203 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 85.497α = 90.00
b = 220.393β = 59.97
c = 85.524γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PHASERphasing
HKL-2000data collection
PDB_EXTRACTdata extraction
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-03-30
    Type: Initial release