Properties of lanK-based regulatory circuit involved in landomycin biosynthesis in Streptomyces cyanogenus S136

B. Ostash; I. Ostash; L. Zhu; M. K. Kharel; A. Luzhetskyy; A. Bechthold; S. Walker; J. Rohr; V. Fedorenko

doi:10.1134/S1022795410050030

Properties of lanK-based regulatory circuit involved in landomycin biosynthesis in Streptomyces cyanogenus S136

B. Ostash, I. Ostash, L. Zhu, M. K. Kharel, A. Luzhetskyy, A. Bechthold, S. Walker, J. Rohr, V. Fedorenko

Pharmaceutical Sciences

Research output: Contribution to journal › Article › peer-review

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Abstract

LanK is TetR-like regulatory protein recently shown to regulate the export and glycosylation of landomycins in Streptomyces cyanogenus S136. Here, several properties of the lanK-mediatcd regulation were deciphered. LanK seems to function as oligomer as evident from experiments in vitro. In vivo, it is able to recognize various landomycins with altered aglycon structure and the minimal concentration of landomycin A sensed by LanK lies in low nanomolar range. Coexpression studies showed that the positive regulatory gene lanI upregulates lanK-dependent lan genes once the negative LanK-regulation is cancelled. Gene lanK can be useful for the construction of biosensor strains for sensitive and specific identification of producers of landomycin-like molecules with long glycosidic chains.

Original language	English
Pages (from-to)	530-535
Number of pages	6
Journal	Russian Journal of Genetics
Volume	46
Issue number	5
DOIs	https://doi.org/10.1134/S1022795410050030
State	Published - May 2010

Bibliographical note

Funding Information:
strain. We are grateful to Prof. G. Padilla for the cos momycin D sample. This work was supported by grants Bg 01F and BG 201P from Ministry of Education and Science of Ukraine (to V.F.) and NIH grants AI50855 and CA102102 (to S.W. and J.R., respectively).

ASJC Scopus subject areas

Genetics

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title = "Properties of lanK-based regulatory circuit involved in landomycin biosynthesis in Streptomyces cyanogenus S136",

abstract = "LanK is TetR-like regulatory protein recently shown to regulate the export and glycosylation of landomycins in Streptomyces cyanogenus S136. Here, several properties of the lanK-mediatcd regulation were deciphered. LanK seems to function as oligomer as evident from experiments in vitro. In vivo, it is able to recognize various landomycins with altered aglycon structure and the minimal concentration of landomycin A sensed by LanK lies in low nanomolar range. Coexpression studies showed that the positive regulatory gene lanI upregulates lanK-dependent lan genes once the negative LanK-regulation is cancelled. Gene lanK can be useful for the construction of biosensor strains for sensitive and specific identification of producers of landomycin-like molecules with long glycosidic chains.",

author = "B. Ostash and I. Ostash and L. Zhu and Kharel, {M. K.} and A. Luzhetskyy and A. Bechthold and S. Walker and J. Rohr and V. Fedorenko",

note = "Funding Information: strain. We are grateful to Prof. G. Padilla for the cos momycin D sample. This work was supported by grants Bg 01F and BG 201P from Ministry of Education and Science of Ukraine (to V.F.) and NIH grants AI50855 and CA102102 (to S.W. and J.R., respectively).",

year = "2010",

month = may,

doi = "10.1134/S1022795410050030",

language = "English",

volume = "46",

pages = "530--535",

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T1 - Properties of lanK-based regulatory circuit involved in landomycin biosynthesis in Streptomyces cyanogenus S136

AU - Ostash, B.

AU - Ostash, I.

AU - Zhu, L.

AU - Kharel, M. K.

AU - Luzhetskyy, A.

AU - Bechthold, A.

AU - Walker, S.

AU - Rohr, J.

AU - Fedorenko, V.

N1 - Funding Information: strain. We are grateful to Prof. G. Padilla for the cos momycin D sample. This work was supported by grants Bg 01F and BG 201P from Ministry of Education and Science of Ukraine (to V.F.) and NIH grants AI50855 and CA102102 (to S.W. and J.R., respectively).

PY - 2010/5

Y1 - 2010/5

N2 - LanK is TetR-like regulatory protein recently shown to regulate the export and glycosylation of landomycins in Streptomyces cyanogenus S136. Here, several properties of the lanK-mediatcd regulation were deciphered. LanK seems to function as oligomer as evident from experiments in vitro. In vivo, it is able to recognize various landomycins with altered aglycon structure and the minimal concentration of landomycin A sensed by LanK lies in low nanomolar range. Coexpression studies showed that the positive regulatory gene lanI upregulates lanK-dependent lan genes once the negative LanK-regulation is cancelled. Gene lanK can be useful for the construction of biosensor strains for sensitive and specific identification of producers of landomycin-like molecules with long glycosidic chains.

AB - LanK is TetR-like regulatory protein recently shown to regulate the export and glycosylation of landomycins in Streptomyces cyanogenus S136. Here, several properties of the lanK-mediatcd regulation were deciphered. LanK seems to function as oligomer as evident from experiments in vitro. In vivo, it is able to recognize various landomycins with altered aglycon structure and the minimal concentration of landomycin A sensed by LanK lies in low nanomolar range. Coexpression studies showed that the positive regulatory gene lanI upregulates lanK-dependent lan genes once the negative LanK-regulation is cancelled. Gene lanK can be useful for the construction of biosensor strains for sensitive and specific identification of producers of landomycin-like molecules with long glycosidic chains.

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JO - Russian Journal of Genetics

JF - Russian Journal of Genetics

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Properties of lanK-based regulatory circuit involved in landomycin biosynthesis in Streptomyces cyanogenus S136

Abstract

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