3U0S

Crystal Structure of an Enzyme Redesigned Through Multiplayer Online Gaming: CE6


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.172 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Increased Diels-Alderase activity through backbone remodeling guided by Foldit players.

Eiben, C.B.Siegel, J.B.Bale, J.B.Cooper, S.Khatib, F.Shen, B.W.Players, F.Stoddard, B.L.Popovic, Z.Baker, D.

(2012) Nat Biotechnol 30: 190-192

  • DOI: 10.1038/nbt.2109
  • Primary Citation of Related Structures:  
    3U0S

  • PubMed Abstract: 
  • Computational enzyme design holds promise for the production of renewable fuels, drugs and chemicals. De novo enzyme design has generated catalysts for several reactions, but with lower catalytic efficiencies than naturally occurring enzymes. Here we report the use of game-driven crowdsourcing to enhance the activity of a computationally designed enzyme through the functional remodeling of its structure ...

    Computational enzyme design holds promise for the production of renewable fuels, drugs and chemicals. De novo enzyme design has generated catalysts for several reactions, but with lower catalytic efficiencies than naturally occurring enzymes. Here we report the use of game-driven crowdsourcing to enhance the activity of a computationally designed enzyme through the functional remodeling of its structure. Players of the online game Foldit were challenged to remodel the backbone of a computationally designed bimolecular Diels-Alderase to enable additional interactions with substrates. Several iterations of design and characterization generated a 24-residue helix-turn-helix motif, including a 13-residue insertion, that increased enzyme activity >18-fold. X-ray crystallography showed that the large insertion adopts a helix-turn-helix structure positioned as in the Foldit model. These results demonstrate that human creativity can extend beyond the macroscopic challenges encountered in everyday life to molecular-scale design problems.


    Related Citations: 
    • Computational design of an enzyme catalyst for a stereoselective bimolecular Diels-Alder reaction.
      Siegel, J.B., Zanghellini, A., Lovick, H.M., Kiss, G., Lambert, A.R., St Clair, J.L., Gallaher, J.L., Hilvert, D., Gelb, M.H., Stoddard, B.L., Houk, K.N., Michael, F.E., Baker, D.
      (2010) Science 329: 309
    • Crystal structure of diisopropylfluorophosphatase from Loligo vulgaris.
      Scharff, E.I., Koepke, J., Fritzsch, G., Lucke, C., Ruterjans, H.
      (2001) Structure 9: 493

    Organizational Affiliation

    Department of Biochemistry, University of Washington, Seattle, Washington, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Diisopropyl-fluorophosphataseA, B337Loligo vulgarisMutation(s): 15 
Gene Names: DFPASE
EC: 3.1.8.2
UniProt
Find proteins for Q7SIG4 (Loligo vulgaris)
Explore Q7SIG4 
Go to UniProtKB:  Q7SIG4
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EPE
Query on EPE

Download Ideal Coordinates CCD File 
C [auth A], J [auth B]4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID
C8 H18 N2 O4 S
JKMHFZQWWAIEOD-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download Ideal Coordinates CCD File 
G [auth A], H [auth A], I [auth A], P [auth B], Q [auth B], R [auth B]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
D [auth A], E [auth A], F [auth A], K [auth B], L [auth B], M [auth B]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
NA
Query on NA

Download Ideal Coordinates CCD File 
N [auth B], O [auth B]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.172 
  • Space Group: P 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 87.002α = 90
b = 87.002β = 90
c = 163.33γ = 90
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
DENZOdata reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-02-01
    Type: Initial release
  • Version 1.1: 2012-02-22
    Changes: Database references
  • Version 1.2: 2017-11-08
    Changes: Refinement description