Volume 60, Issue 16 pp. 8792-8797
Communication

Structural Revision of Natural Cyclic Depsipeptide MA026 Established by Total Synthesis and Biosynthetic Gene Cluster Analysis

Chihiro Uchiyama

Chihiro Uchiyama

Department of Medicinal Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392 Japan

These authors contributed equally to this work.

Search for more papers by this author
Akane Fukuda

Akane Fukuda

Department of Medicinal Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392 Japan

These authors contributed equally to this work.

Search for more papers by this author
Minagi Mukaiyama

Minagi Mukaiyama

Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572 Japan

These authors contributed equally to this work.

Search for more papers by this author
Yoshiki Nakazawa

Yoshiki Nakazawa

Department of Medicinal Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392 Japan

Search for more papers by this author
Yuka Kuramochi

Yuka Kuramochi

Department of Medicinal Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392 Japan

Search for more papers by this author
Dr. Kyohei Muguruma

Dr. Kyohei Muguruma

Department of Medicinal Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392 Japan

Present address: Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo, 152-8552 Japan

Search for more papers by this author
Mitsue Arimoto

Mitsue Arimoto

Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572 Japan

Search for more papers by this author
Dr. Akihiro Ninomiya

Dr. Akihiro Ninomiya

Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572 Japan

Search for more papers by this author
Dr. Koichiro Kako

Dr. Koichiro Kako

Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572 Japan

Search for more papers by this author
Prof. Yohei Katsuyama

Prof. Yohei Katsuyama

Department of Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan

Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657 Japan

Search for more papers by this author
Dr. Sho Konno

Dr. Sho Konno

Department of Medicinal Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392 Japan

Search for more papers by this author
Dr. Akihiro Taguchi

Dr. Akihiro Taguchi

Department of Medicinal Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392 Japan

Search for more papers by this author
Dr. Kentaro Takayama

Dr. Kentaro Takayama

Department of Medicinal Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392 Japan

Search for more papers by this author
Dr. Atsuhiko Taniguchi

Dr. Atsuhiko Taniguchi

Department of Medicinal Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392 Japan

Search for more papers by this author
Dr. Yoko Nagumo

Dr. Yoko Nagumo

Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572 Japan

Search for more papers by this author
Prof. Takeo Usui

Corresponding Author

Prof. Takeo Usui

Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572 Japan

Search for more papers by this author
Prof. Yoshio Hayashi

Corresponding Author

Prof. Yoshio Hayashi

Department of Medicinal Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo, 192-0392 Japan

Search for more papers by this author
First published: 02 February 2021
Citations: 7

Graphical Abstract

A revised structure of natural cyclic depsipeptide MA026 with tight junction opening activity was established by physicochemical analysis and confirmed by its total solid-phase synthesis. Bioinformatic analysis of the putative MA026 biosynthetic gene cluster demonstrated that the stereochemistry of amino acid residue in the revised structure can be reasonably explained.

Abstract

A revised structure of natural 14-mer cyclic depsipeptide MA026, isolated from Pseudomonas sp. RtlB026 in 2002 was established by physicochemical analysis with HPLC, MS/MS, and NMR and confirmed by total solid-phase synthesis. The revised structure differs from that previously reported in that two amino acid residues, assigned in error, have been replaced. Synthesized MA026 with the revised structure showed a tight junction (TJ) opening activity like that of the natural one in a cell-based TJ opening assay. Bioinformatic analysis of the putative MA026 biosynthetic gene cluster (BGC) of RtIB026 demonstrated that the stereochemistry of each amino acid residue in the revised structure can be reasonably explained. Phylogenetic analysis with xantholysin BGC indicates an exceptionally high homology (ca. 90 %) between xantholysin and MA026. The TJ opening activity of MA026 when binding to claudin-1 is a key to new avenues for transdermal administration of large hydrophilic biologics.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.