Skip to main content
Log in

Structure of the Bacillus subtilis Peptide Antibiotic Subtilosin A Determined by 1H-NMR and Matrix Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry

  • Published:
Journal of Protein Chemistry Aims and scope Submit manuscript

Abstract

Subtilosin A produced by Bacillus subtilis is a macrocyclic peptide antibiotic which comprises 35 amino acids. Its molecular mass (3399.7 Da), determined by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, and chemical properties gave experimental support for unusual intramolecular linkages. The three-dimensional fold of native subtilosin in dimethylsulfoxide was determined from two-dimensional 1H-NMR spectra recorded at 600 MHz. Based on the backbone conformation, a structure for subtilosin A is presented which is characterized by three inter-residue bridges where two cysteines are linked with two phenylalanine residues, respectively, and a third cysteine is bound to a threonine residue.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

REFERENCES

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Marx, R., Stein, T., Entian, KD. et al. Structure of the Bacillus subtilis Peptide Antibiotic Subtilosin A Determined by 1H-NMR and Matrix Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry. J Protein Chem 20, 501–506 (2001). https://doi.org/10.1023/A:1012562631268

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1012562631268

Navigation