6VGS

Alpha-ketoisovalerate decarboxylase (KivD) from Lactococcus lactis, thermostable mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.183 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Isobutanol production freed from biological limits using synthetic biochemistry.

Sherkhanov, S.Korman, T.P.Chan, S.Faham, S.Liu, H.Sawaya, M.R.Hsu, W.T.Vikram, E.Cheng, T.Bowie, J.U.

(2020) Nat Commun 11: 4292-4292

  • DOI: 10.1038/s41467-020-18124-1
  • Primary Citation of Related Structures:  
    6VGS

  • PubMed Abstract: 
  • Cost competitive conversion of biomass-derived sugars into biofuel will require high yields, high volumetric productivities and high titers. Suitable production parameters are hard to achieve in cell-based systems because of the need to maintain life processes ...

    Cost competitive conversion of biomass-derived sugars into biofuel will require high yields, high volumetric productivities and high titers. Suitable production parameters are hard to achieve in cell-based systems because of the need to maintain life processes. As a result, next-generation biofuel production in engineered microbes has yet to match the stringent cost targets set by petroleum fuels. Removing the constraints imposed by having to maintain cell viability might facilitate improved production metrics. Here, we report a cell-free system in a bioreactor with continuous product removal that produces isobutanol from glucose at a maximum productivity of 4 g L -1 h -1 , a titer of 275 g L -1 and 95% yield over the course of nearly 5 days. These production metrics exceed even the highly developed ethanol fermentation process. Our results suggest that moving beyond cells has the potential to expand what is possible for bio-based chemical production.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, Molecular Biology Institute, UCLA-DOE Institute, University of California, Los Angeles, CA, USA. bowie@mbi.ucla.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Alpha-keto acid decarboxylaseA [auth AAA],
B [auth BBB],
C [auth CCC],
D [auth DDD]
568Lactococcus lactis subsp. lactisMutation(s): 3 
Gene Names: JCM5805K_1329ATCC19435_0309
UniProt
Find proteins for A0A0B8QZ66 (Lactococcus lactis subsp. lactis)
Explore A0A0B8QZ66 
Go to UniProtKB:  A0A0B8QZ66
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A0B8QZ66
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.183 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 128.195α = 90
b = 128.268β = 90
c = 147.737γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

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Ligand Structure Quality Assessment 



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Department of Energy (DOE, United States)United StatesDOE DE-AR0000556

Revision History  (Full details and data files)

  • Version 1.0: 2020-08-05
    Type: Initial release
  • Version 1.1: 2020-09-09
    Changes: Database references