Investigation of the complex antibiotic INA-5812


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Abstract

A concentrate with the antimicrobial activity has been isolated from the culture broth of Streptomyces roseoflavus INA-Ac-5812. Its further fractionation by reversed-phase HPLC has resulted in six fractions. It has been established by MALDI-TOF and ESI-MSn precision mass-spectrometry methods that the main components of the complex antibiotic are several closely related compounds, presumably of a glycopeptide nature. The fraction containing an individual component with a mass of 1845.788 Da has been characterized by UV/Vis absorbance and fluorescence spectra, amino acid analysis, and derivatization with tris(2,6-dimethoxyphenyl)methyl cation. The activity of fractions against pathogenic microbes has been studied. The results allow the supposition that the INA-5812 antibiotic complex is a glyco- or lipoglycopeptide antibiotic of a new type, which is very promising for further study.

About the authors

O. A. Lapchinskaya

Gause Institute of New Antibiotics

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119021

G. S. Katrukha

Gause Institute of New Antibiotics

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119021

E. G. Gladkikh

Gause Institute of New Antibiotics

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119021

V. V. Kulyaeva

Gause Institute of New Antibiotics

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119021

P. V. Coodan

Federal Research Center of Nutrition and Biotechnology

Email: ap2rin@gmail.com
Russian Federation, Moscow, 109240

A. P. Topolyan

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: ap2rin@gmail.com
Russian Federation, Moscow, 117997

V. A. Alferova

Gause Institute of New Antibiotics

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119021

V. V. Pogozheva

Gause Institute of New Antibiotics

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119021

M. A. Sukonnikov

Faculty of Chemistry

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119991

E. A. Rogozhin

Gause Institute of New Antibiotics; Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119021; Moscow, 117997

I. A. Prokhorenko

Gause Institute of New Antibiotics; Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119021; Moscow, 117997

V. A. Brylev

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: ap2rin@gmail.com
Russian Federation, Moscow, 117997

A. M. Korolev

Gause Institute of New Antibiotics

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119021

M. S. Slyundina

Gause Institute of New Antibiotics; Topchiev Institute of Petrochemical Synthesis

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119021; Moscow, 119991

R. S. Borisov

Topchiev Institute of Petrochemical Synthesis; Faculty of Physics, Mathematics and Natural Sciences

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119991; Moscow, 115419

M. V. Serebryakova

Belozersky Institute of Physico-Chemical Biology

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119992

M. V. Shuvalov

Gause Institute of New Antibiotics; Faculty of Chemistry

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119021; Moscow, 119991

A. L. Ksenofontov

Belozersky Institute of Physico-Chemical Biology

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119992

L. G. Stoyanova

Faculty of Biology

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119991

I. A. Osterman

Faculty of Chemistry; Belozersky Institute of Physico-Chemical Biology

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119991; Moscow, 119992

A. A. Formanovsky

Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Email: ap2rin@gmail.com
Russian Federation, Moscow, 117997

V. N. Tashlitsky

Faculty of Chemistry

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119991

L. A. Baratova

Belozersky Institute of Physico-Chemical Biology

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119992

A. V. Timofeeva

Belozersky Institute of Physico-Chemical Biology

Email: ap2rin@gmail.com
Russian Federation, Moscow, 119992

A. P. Tyurin

Gause Institute of New Antibiotics; Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry

Author for correspondence.
Email: ap2rin@gmail.com
Russian Federation, Moscow, 119021; Moscow, 117997


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