4CGR

Structure of Regulator Protein SCO3201 from Streptomyces coelicolor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.229 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure and Regulatory Targets of Sco3201, a Highly Promiscuous Tetr-Like Regulator of Streptomyces Coelicolor M145.

Xu, D.Waack, P.Zhang, Q.Werten, S.Hinrichs, W.Virolle, M.

(2014) Biochem Biophys Res Commun 450: 513

  • DOI: 10.1016/j.bbrc.2014.06.003
  • Primary Citation of Related Structures:  
    4CGR

  • PubMed Abstract: 
  • SCO3201, a regulator of the TetR family, is a strong repressor of both morphological differentiation and antibiotic production when overexpressed in Streptomyces coelicolor. Here, we report the identification of 14 novel putative regulatory targets of this regulator using in vitro formaldehyde cross-linking ...

    SCO3201, a regulator of the TetR family, is a strong repressor of both morphological differentiation and antibiotic production when overexpressed in Streptomyces coelicolor. Here, we report the identification of 14 novel putative regulatory targets of this regulator using in vitro formaldehyde cross-linking. Direct binding of purified His6-SCO3201 was demonstrated for the promoter regions of 5 regulators (SCO1716, SCO1950, SCO3367, SCO4009 and SCO5046), a putative histidine phosphatase (SCO1809), an acetyltransferase (SCO0988) and the polyketide synthase RedX (SCO5878), using EMSA. Reverse transcriptional analysis demonstrated that the expression of the transcriptional regulators SCO1950, SCO4009, SCO5046, as well as of SCO0988 and RedX was down regulated, upon SCO3201 overexpression, whereas the expression of SCO1809 and SCO3367 was up regulated. A consensus binding motif was derived via alignment of the promoter regions of the genes negatively regulated. The positions of the predicted operator sites were consistent with a direct repressive effect of SCO3201 on 5 out of 7 of these promoters. Furthermore, the 2.1Å crystal structure of SCO3201 was solved, which provides a possible explanation for the high promiscuity of this regulator that might account for its dramatic effect on the differentiation process of S. coelicolor.


    Organizational Affiliation

    Laboratory of "Energetic Metabolism of Streptomyces", Institute of Genetics and Microbiology, University of Paris-Sud 11, France. Electronic address: marie-joelle.virolle@igmors.u-psud.fr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PUTATIVE TETR-FAMILY TRANSCRIPTIONAL REGULATORA, B216Streptomyces coelicolorMutation(s): 0 
UniProt
Find proteins for Q9KYU4 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145))
Explore Q9KYU4 
Go to UniProtKB:  Q9KYU4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9KYU4
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download Ideal Coordinates CCD File 
C [auth A]PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.229 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.68α = 90
b = 79.63β = 90
c = 95.98γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
SHELXphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-07-09
    Type: Initial release
  • Version 1.1: 2014-08-06
    Changes: Database references
  • Version 1.2: 2018-01-24
    Changes: Source and taxonomy
  • Version 1.3: 2019-05-08
    Changes: Data collection, Derived calculations, Experimental preparation