1QOW

Mersacidin from Bacillus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.06 Å
  • R-Value Observed: 0.141 

wwPDB Validation   3D Report Full Report


This is version 1.7 of the entry. See complete history


Literature

Ab initio structure determination of the lantibiotic mersacidin.

Schneider, T.R.Karcher, J.Pohl, E.Lubini, P.Sheldrick, G.M.

(2000) Acta Crystallogr D Biol Crystallogr 56: 705-713

  • DOI: 10.1107/s0907444900003711
  • Primary Citation of Related Structures:  
    1QOW

  • PubMed Abstract: 
  • The crystal structure of mersacidin, a potential novel antibiotic against methicillin- and vancomycin-resistant Staphylococcus aureus strains, has been determined by ab initio methods. Despite all crystals being merohedrally twinned, an accurate structural model with an R value of 13 ...

    The crystal structure of mersacidin, a potential novel antibiotic against methicillin- and vancomycin-resistant Staphylococcus aureus strains, has been determined by ab initio methods. Despite all crystals being merohedrally twinned, an accurate structural model with an R value of 13.4% has been obtained at atomic resolution. With six molecules in the asymmetric unit and no atom heavier than sulfur, the structure corresponds to a protein of 120 amino acids and is the largest approximately equal-atom unknown structure solved by direct methods. In the crystal, the molecule assumes a compact fold different from that found by NMR in solution. Comparison of the NCS-related molecules reveals regions of variable flexibility. The region highly homologous to the related antibiotic actagardine is very rigid and possibly defines an essential building block of this class of new antibacterial substances.


    Organizational Affiliation

    University of Göttingen, Department of Structural Chemistry, Germany. trs@shelx.uni-ac-gwdg.de



Macromolecules
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MERSACIDINA, B, C, D, E, F20Bacillus sp. (in: Bacteria)Mutation(s): 0 
UniProt
Find proteins for P43683 (Bacillus sp. (strain HIL-Y85/54728))
Explore P43683 
Go to UniProtKB:  P43683
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
DHA
Query on DHA
A, B, C, D, E, FPEPTIDE LINKINGC3 H5 N O2SER
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 1
IDChainsNameType/Class2D Diagram3D Interactions
PRD_000199
Query on PRD_000199
A, B, C, D, E, FMersacidinOligopeptide / Antibiotic Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.06 Å
  • R-Value Observed: 0.141 
  • Space Group: P 32
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.09α = 90
b = 46.09β = 90
c = 31.02γ = 120
Software Package:
Software NamePurpose
SHELXL-97refinement
DENZOdata reduction
SCALEPACKdata scaling
SHELXL-97phasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-05-26
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Atomic model, Database references, Derived calculations, Structure summary, Version format compliance
  • Version 1.2: 2011-07-27
    Changes: Atomic model, Data collection, Derived calculations, Other, Refinement description
  • Version 1.3: 2012-11-30
    Changes: Other
  • Version 1.4: 2019-04-17
    Changes: Data collection, Derived calculations, Experimental preparation, Other
  • Version 1.5: 2019-05-22
    Changes: Data collection, Refinement description
  • Version 1.6: 2019-07-24
    Changes: Data collection, Experimental preparation
  • Version 1.7: 2019-10-09
    Changes: Data collection, Database references, Other