5OJX

Crystal structure of regulator protein 2 (PamR2) from the pamamycin biosynthetic gene cluster of Streptomyces alboniger


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.230 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Design, development and application of whole-cell based antibiotic-specific biosensor.

Rebets, Y.Schmelz, S.Gromyko, O.Tistechok, S.Petzke, L.Scrima, A.Luzhetskyy, A.

(2018) Metab Eng 47: 263-270

  • DOI: https://doi.org/10.1016/j.ymben.2018.03.019
  • Primary Citation of Related Structures:  
    5OJX, 5OJY

  • PubMed Abstract: 

    Synthetic biology techniques hold great promise for optimising the production of natural products by microorganisms. However, evaluating the phenotype of a modified bacterium represents a major bottleneck to the engineering cycle - particularly for antibiotic-producing actinobacteria strains, which grow slowly and are challenging to genetically manipulate. Here, we report the generation and application of antibiotic-specific whole-cell biosensor derived from TetR transcriptional repressor for use in identifying and optimising antibiotic producers. The constructed biosensor was successfully used to improve production of polyketide antibiotic pamamycin. However, an initial biosensor based on native genetic elements had inadequate dynamic and operating ranges. To overcome these limitations, we fine-tuned biosensor performance through alterations of the promoter and operator of output module and the ligand affinity of transcription factor module, which enabled us to deduce recommendations for building and application of actinobacterial biosensors.


  • Organizational Affiliation

    Universität des Saarlandes, Pharmazeutische Biotechnologie, Bld. C2.3, 66123 Saarbrücken, Germany; Helmholtz-Institute for Pharmaceutical Research Saarland, UdS Campus, Bld. E8.1, 66123 Saarbrücken, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
TetR family transcription regulator254Streptomyces albonigerMutation(s): 0 
Gene Names: pamR2SALB_00464
UniProt
Find proteins for A0A0D3RJT7 (Streptomyces alboniger)
Explore A0A0D3RJT7 
Go to UniProtKB:  A0A0D3RJT7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A0D3RJT7
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.230 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 98.27α = 90
b = 56.03β = 97.99
c = 39.27γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Helmholtz AssociationGermanyVH-NG-727

Revision History  (Full details and data files)

  • Version 1.0: 2018-04-11
    Type: Initial release
  • Version 1.1: 2018-04-25
    Changes: Data collection, Database references
  • Version 1.2: 2024-01-17
    Changes: Data collection, Database references, Refinement description