1. Academic Validation
  2. Istamycin aminoglycosides profiling and their characterization in Streptomyces tenjimariensis ATCC 31603 culture using high-performance liquid chromatography with tandem mass spectrometry

Istamycin aminoglycosides profiling and their characterization in Streptomyces tenjimariensis ATCC 31603 culture using high-performance liquid chromatography with tandem mass spectrometry

  • J Sep Sci. 2016 Dec;39(24):4712-4722. doi: 10.1002/jssc.201600925.
Nguyen Huu Hoang 1 Nguyen Lan Huong 1 Byul Kim 2 Jae Kyung Sohng 1 Yeo Joon Yoon 3 Je Won Park 2
Affiliations

Affiliations

  • 1 Department of Biotechnology Convergent Pharmaceutical Engineering, SunMoon University, Chungnam, Republic of Korea.
  • 2 School of Biosystem and Biomedical Science, Korea University, Seoul, Republic of Korea.
  • 3 Department of Chemistry and Nano Sciences, Ewha Womans University, Seoul, Republic of Korea.
Abstract

A high-performance liquid chromatography with electrospray ionization ion trap tandem mass spectrometry method was developed and validated for the robust profiling and characterization of biosynthetic congeners in the 2-deoxy-aminocyclitol istamycin pathway, from the fermentation broth of Streptomyces tenjimariensis ATCC 31603. Gradient elution on an Acquity CSH C18 column was performed with a gradient of 5 mM aqueous pentafluoropropionic acid and 50% acetonitrile. Sixteen natural istamycin congeners were profiled and quantified in descending order; istamycin A, istamycin B, istamycin A0 , istamycin B0 , istamycin B1 , istamycin A1 , istamycin C, istamycin A2 , istamycin C1 , istamycin C0 , istamycin X0 , istamycin A3 , istamycin Y0 , istamycin B3 , and istamycin FU-10 plus istamycin AP. In addition, a total of five sets of 1- or 3-epimeric pairs were chromatographically separated using a macrocyclic glycopeptide-bonded chiral column. The lower limit of quantification of istamycin-A present in S. tenjimariensis fermentation was estimated to be 2.2 ng/mL. The simultaneous identification of a wide range of 2-deoxy-aminocyclitol-type istamycin profiles from Bacterial fermentation was determined for the first time by employing high-performance liquid chromatography with tandem mass spectrometry analysis and the separation of istamycin epimers.

Keywords

Chiral columns; Epimeric mixtures; Istamycin aminoglycoside; Streptomyces tenjimariensis.

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