1
|
Dongrui Z, Miyamoto M, Yokoo H, Demizu Y. Innovative peptide architectures: advancements in foldamers and stapled peptides for drug discovery. Expert Opin Drug Discov 2024; 19:699-723. [PMID: 38753534 DOI: 10.1080/17460441.2024.2350568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/29/2024] [Indexed: 05/18/2024]
Abstract
INTRODUCTION Peptide foldamers play a critical role in pharmaceutical research and biomedical applications. This review highlights recent (post-2020) advancements in novel foldamers, synthetic techniques, and their applications in pharmaceutical research. AREAS COVERED The authors summarize the structures and applications of peptide foldamers such as α, β, γ-peptides, hydrocarbon-stapled peptides, urea-type foldamers, sulfonic-γ-amino acid foldamers, aromatic foldamers, and peptoids, which tackle the challenges of traditional peptide drugs. Regarding antimicrobial use, foldamers have shown progress in their potential against drug-resistant bacteria. In drug development, peptide foldamers have been used as drug delivery systems (DDS) and protein-protein interaction (PPI) inhibitors. EXPERT OPINION These structures exhibit resistance to enzymatic degradation, are promising for therapeutic delivery, and disrupt crucial PPIs associated with diseases such as cancer with specificity, versatility, and stability, which are useful therapeutic properties. However, the complexity and cost of their synthesis, along with the necessity for thorough safety and efficacy assessments, necessitate extensive research and cross-sector collaboration. Advances in synthesis methods, computational modeling, and targeted delivery systems are essential for fully realizing the therapeutic potential of foldamers and integrating them into mainstream medical treatments.
Collapse
Affiliation(s)
- Zhou Dongrui
- Division of Organic Chemistry, National Institute of Health Sciences, Kawasaki, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Maho Miyamoto
- Division of Organic Chemistry, National Institute of Health Sciences, Kawasaki, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Hidetomo Yokoo
- Division of Organic Chemistry, National Institute of Health Sciences, Kawasaki, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Kawasaki, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Division of Pharmaceutical Science of Okayama University, Kita, Japan
| |
Collapse
|
2
|
Development of delivery carriers for plasmid DNA by conjugation of a helical template to oligoarginine. Bioorg Med Chem 2022; 72:116997. [PMID: 36088811 DOI: 10.1016/j.bmc.2022.116997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 11/22/2022]
Abstract
Arginine (Arg)-rich peptides can penetrate the cell membrane and deliver nucleic acid-based therapeutics into cells. In this study, a helical template designed with a repeating sequence composed of two l-leucines (l-Leu) and a 2-aminoisobutyric acid (Aib) (l-Leu-l-Leu-Aib) was conjugated to nona-arginine on either the C- or N- terminus, designated as Block 1 and Block 2. Each terminal modification induced helical structure formation and improved the physicochemical properties of peptide/plasmid DNA (pDNA) complexes, resulting in efficient intracellular pDNA delivery. The introduction of a helical template may be effective for the endosomal escape of pDNA and pDNA release from complexes in cells. These results emphasized the potency of a helical template for the development of novel cell-penetrating peptides for pDNA delivery.
Collapse
|
3
|
Zhang X, Ligny R, Chewchanwuttiwong S, Hadade R, Laurent MY, Martel A, Jacquemmoz C, Lhoste J, Bricaud S, Py S, Dujardin G. δ-Valerolactamic Quaternary Amino Acid Derivatives: Enantiodivergent Synthesis and Evidence for Stereodifferentiated β-Turn-Inducing Properties. J Org Chem 2021; 86:8041-8055. [PMID: 33960779 DOI: 10.1021/acs.joc.1c00456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Enantiopure (R) and (S) cyclic α,α-disubstituted amino acid derivatives displaying a δ-valerolactam side chain were prepared from a common isoxazolidine precursor. The (R)-configured δ-valerolactam 11 was converted into diastereoisomeric pseudopeptides to investigate its ability to induce secondary structures in peptidomimetics. Conformational studies of these pseudopeptides were carried out in the solid state (X-ray diffraction), in solution (NMR analyses), and in silico (computer-aided conformational analysis), which demonstrated that such quaternary amino acids induce β-turn conformations stable enough to be retained in polar media (DMSO). Incorporation of this new type of α,α-disubstituted amino acid into a representative pseudopeptidic sequence by N- then C-elongation and N-debenzylation is also described herein and could serve for the synthesis of various structured peptidomimetics.
Collapse
Affiliation(s)
- Xiaofei Zhang
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France.,Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France.,CNRS, DCM, F-38000 Grenoble, France
| | - Romain Ligny
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Sopa Chewchanwuttiwong
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France.,Prince of Songkla University, Faculty of Science and Industrial Technology Surat Thani 84000, Thailand
| | - Rawan Hadade
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Mathieu Y Laurent
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Arnaud Martel
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Corentin Jacquemmoz
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Jérôme Lhoste
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Sullivan Bricaud
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| | - Sandrine Py
- Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France.,CNRS, DCM, F-38000 Grenoble, France
| | - Gilles Dujardin
- Institut des Molécules et Matériaux du Mans (IMMM) - UMR 6283 CNRS-Le Mans Université, Equipe Méthodologie et Synthèse Organique, F-72085 Le Mans Cedex 09, France
| |
Collapse
|
4
|
Yamaberi Y, Eto R, Umeno T, Kato T, Doi M, Yokoo H, Oba M, Tanaka M. Synthesis of ( S)-(-)-Cucurbitine and Conformation of Its Homopeptides. Org Lett 2021; 23:4358-4362. [PMID: 33978426 DOI: 10.1021/acs.orglett.1c01291] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A chiral cyclic α,α-disubstituted α-amino acid, (S)-(-)-cucurbitine, which has a pyrrolidine ring with a chiral center at the α-position, was synthesized, and its homopeptides were prepared. (S)-(-)-Cucurbitine homopeptides with a Boc-protecting group formed helical structures with slight control of the helical screw sense to the left-handed form. The state of the pyrrolidine ring in (S)-(-)-cucurbitine was important for the control of the helical structures and helical screw sense of its homopeptides.
Collapse
Affiliation(s)
- Yuto Yamaberi
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Ryo Eto
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Tomohiro Umeno
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Takuma Kato
- Osaka University of Pharmaceutical Sciences, Osaka 569-1094, Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences, Osaka 569-1094, Japan
| | - Hidetomo Yokoo
- Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, 1-5 Shimogamohangi-cho, Sakyo-ku, Kyoto 606-0823, Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.,Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, 1-5 Shimogamohangi-cho, Sakyo-ku, Kyoto 606-0823, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| |
Collapse
|
5
|
Terada K, Gimenez-Dejoz J, Kurita T, Oikawa K, Uji H, Tsuchiya K, Numata K. Synthetic Mitochondria-Targeting Peptides Incorporating α-Aminoisobutyric Acid with a Stable Amphiphilic Helix Conformation in Plant Cells. ACS Biomater Sci Eng 2021; 7:1475-1484. [PMID: 33606492 DOI: 10.1021/acsbiomaterials.0c01533] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the genetic modification of plant cells, the mitochondrion is an important target in addition to the nucleus and plastid. However, gene delivery into the mitochondria of plant cells has yet to be established by conventional methods, such as particle bombardment, because of the small size and high mobility of mitochondria. To develop an efficient mitochondria-targeting signal (MTS) that functions in plant cells, we designed the artificial peptide (LURL)3 and its analogues, which periodically feature hydrophobic α-aminoisobutyric acid (Aib, U) and cationic arginine (R), considering the consensus motif recognized by the mitochondrial import receptor Tom20. Circular dichroism measurements and molecular dynamics simulation studies revealed that (LURL)3 had a propensity to form a stable α-helix in 0.1 M phosphate buffer solution containing 1.0 wt % sodium dodecyl sulfate. After internalization into plant cells via particle bombardment, (LURL)3 revealed highly selective accumulation in the mitochondria, whereas its analogue (LARL)3 was predominantly located in the vacuoles in addition to mitochondria. The high selectivity of (LURL)3 can be attributed to the incorporation of Aib, which promotes the hydrophobic interaction between the MTS and Tom20 by increasing the hydrophobicity and helicity of (LURL)3. The present study provided a prospective mitochondrial targeting system using the simple design of artificial peptides.
Collapse
Affiliation(s)
- Kayo Terada
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto Daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Joan Gimenez-Dejoz
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Taichi Kurita
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto Daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazusato Oikawa
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto Daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hirotaka Uji
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto Daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kousuke Tsuchiya
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto Daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Keiji Numata
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto Daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.,Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| |
Collapse
|
6
|
Terada K, Gimenez-Dejoz J, Miyagi Y, Oikawa K, Tsuchiya K, Numata K. Artificial Cell-Penetrating Peptide Containing Periodic α-Aminoisobutyric Acid with Long-Term Internalization Efficiency in Human and Plant Cells. ACS Biomater Sci Eng 2020; 6:3287-3298. [DOI: 10.1021/acsbiomaterials.0c00182] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kayo Terada
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Joan Gimenez-Dejoz
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yu Miyagi
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Kazusato Oikawa
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Kousuke Tsuchiya
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Keiji Numata
- Biomacromolecules Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| |
Collapse
|
7
|
Burade SS, Pawar SV, Saha T, Kumbhar N, Kotmale AS, Ahmad M, Talukdar P, Dhavale DD. Sugar-derived oxazolone pseudotetrapeptide as γ-turn inducer and anion-selective transporter. Beilstein J Org Chem 2019; 15:2419-2427. [PMID: 31666876 PMCID: PMC6808195 DOI: 10.3762/bjoc.15.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 09/23/2019] [Indexed: 12/02/2022] Open
Abstract
The intramolecular cyclization of a C-3-tetrasubstituted furanoid sugar amino acid-derived linear tetrapeptide afforded an oxazolone pseudo-peptide with the formation of an oxazole ring at the C-terminus. A conformational study of the oxazolone pseudo-peptide showed intramolecular C=O···HN(II) hydrogen bonding in a seven-membered ring leading to a γ-turn conformation. This fact was supported by a solution-state NMR and molecular modeling studies. The oxazolone pseudotetrapeptide was found to be a better Cl--selective transporter for which an anion-anion antiport mechanism was established.
Collapse
Affiliation(s)
- Sachin S Burade
- Garware Research Center, Department of Chemistry, Savitribai Phule Pune University (formerly University of Pune), Pune 411007, India
| | - Sushil V Pawar
- Garware Research Center, Department of Chemistry, Savitribai Phule Pune University (formerly University of Pune), Pune 411007, India
| | - Tanmoy Saha
- Indian Institute of Science Education and Research, Pune, Pune 411008, India
| | - Navanath Kumbhar
- Garware Research Center, Department of Chemistry, Savitribai Phule Pune University (formerly University of Pune), Pune 411007, India
| | - Amol S Kotmale
- Garware Research Center, Department of Chemistry, Savitribai Phule Pune University (formerly University of Pune), Pune 411007, India
| | - Manzoor Ahmad
- Indian Institute of Science Education and Research, Pune, Pune 411008, India
| | - Pinaki Talukdar
- Indian Institute of Science Education and Research, Pune, Pune 411008, India
| | - Dilip D Dhavale
- Garware Research Center, Department of Chemistry, Savitribai Phule Pune University (formerly University of Pune), Pune 411007, India
| |
Collapse
|
8
|
Mir FM, Crisma M, Toniolo C, Lubell WD. Isolated α-turn and incipient γ-helix. Chem Sci 2019; 10:6908-6914. [PMID: 31391913 PMCID: PMC6640192 DOI: 10.1039/c9sc01683j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 06/07/2019] [Indexed: 12/17/2022] Open
Abstract
The unique abilities of homo-oligo-adamantyl peptides to adopt α- and γ-turn conformations are demonstrated by X-ray diffraction, and NMR and FT-IR absorption spectroscopies. Assembled by an Ugi multiple component reaction strategy, N α-formyl-adamantyl tripeptide iso-propyl and tert-butyl amides are respectively found to adopt an isolated α-turn and an incipient γ-helix conformation by X-ray diffraction crystallography. The shortest example of a single α-turn with ideal geometry is observed in the crystalline state. In solution both peptides predominantly assume γ-helical structures.
Collapse
Affiliation(s)
- Fatemeh M Mir
- Département de Chimie , Université de Montréal , C. P. 6128, Succursale Centre-Ville , Montréal , Québec , Canada H3C 3J7 .
| | - Marco Crisma
- Department of Chemistry , University of Padova and Institute of Biomolecular Chemistry , Padova Unit , CNR , 35131 Padova , Italy
| | - Claudio Toniolo
- Department of Chemistry , University of Padova and Institute of Biomolecular Chemistry , Padova Unit , CNR , 35131 Padova , Italy
| | - William D Lubell
- Département de Chimie , Université de Montréal , C. P. 6128, Succursale Centre-Ville , Montréal , Québec , Canada H3C 3J7 .
| |
Collapse
|
9
|
Oba M, Nagano Y, Kato T, Tanaka M. Secondary structures and cell-penetrating abilities of arginine-rich peptide foldamers. Sci Rep 2019; 9:1349. [PMID: 30718681 PMCID: PMC6362038 DOI: 10.1038/s41598-018-38063-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 12/19/2018] [Indexed: 11/09/2022] Open
Abstract
Foldamers, which are folded oligomers with well-defined conformations, have been recently reported to have a good cell-penetrating ability. α,α-Disubstituted α-amino acids are one such promising tool for the design of peptide foldamers. Here, we prepared four types of L-arginine-rich nonapeptides containing L-leucine or α,α-disubstituted α-amino acids, and evaluated their secondary structures and cell-penetrating abilities in order to elucidate a correlation between them. Peptides containing α,α-disubstituted α-amino acids had similar resistance to protease digestion but showed different secondary structures. Intracellular uptake assays revealed that the helicity of peptides was important for their cell-penetrating abilities. These findings suggested that a peptide foldamer with a stable helical structure could be promising for the design of cell-penetrating peptides.
Collapse
Affiliation(s)
- Makoto Oba
- Graduate School Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan.
| | - Yu Nagano
- Graduate School Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| | - Takuma Kato
- Graduate School Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
- Osaka University of Pharmaceutical Sciences, 40-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan
| | - Masakazu Tanaka
- Graduate School Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan
| |
Collapse
|
10
|
Misawa T, Ohoka N, Oba M, Yamashita H, Tanaka M, Naito M, Demizu Y. Development of 2-aminoisobutyric acid (Aib)-rich cell-penetrating foldamers for efficient siRNA delivery. Chem Commun (Camb) 2019; 55:7792-7795. [DOI: 10.1039/c9cc02203a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We have designed and synthesized a set of cell-penetrating foldamers (CPFs), Blocks 1–8, composed of the common amino acids Leu, Arg, and Gly, as well as the helicogenic amino acid 2-aminoisobutyric acid.
Collapse
Affiliation(s)
- Takashi Misawa
- Division of Organic Chemistry
- National Institute of Health Sciences
- Kawasaki-shi
- Japan
| | - Nobumichi Ohoka
- Division of Molecular Target and Gene Therapy Products
- National Institute of Health Sciences
- Kawasaki-shi
- Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
| | - Hiroko Yamashita
- Division of Organic Chemistry
- National Institute of Health Sciences
- Kawasaki-shi
- Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences
- Nagasaki University
- Nagasaki 852-8521
- Japan
| | - Mikihiko Naito
- Division of Molecular Target and Gene Therapy Products
- National Institute of Health Sciences
- Kawasaki-shi
- Japan
| | - Yosuke Demizu
- Division of Organic Chemistry
- National Institute of Health Sciences
- Kawasaki-shi
- Japan
| |
Collapse
|
11
|
Koba Y, Ueda A, Oba M, Doi M, Kato T, Demizu Y, Tanaka M. Left-Handed Helix of Three-Membered Ring Amino Acid Homopeptide Interrupted by an N-H···Ethereal O-Type Hydrogen Bond. Org Lett 2018; 20:7830-7834. [PMID: 30499676 DOI: 10.1021/acs.orglett.8b03331] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A chiral three-membered ring Cα,α-disubstituted α-amino acid ( R, R)-Ac3cdMOM, in which the α-carbon is not a chiral center, but two side chain β-carbons are chiral centers, was synthesized from dimethyl l-(+)-tartrate, and its homopeptides were prepared. X-ray crystallographic analysis of ( R, R)-Ac3cdMOM pentapeptide showed bent left-handed ( M) 310-helical structures with an unusual intramolecular hydrogen bond of the N-H···O (ethereal) type. The left-handedness of the bent helices was exclusively controlled by the side-chain β-carbon chiral centers.
Collapse
Affiliation(s)
- Yurie Koba
- Graduate School of Biomedical Sciences , Nagasaki University , 1-14 Bukyo-machi , Nagasaki 852-8521 , Japan
| | - Atsushi Ueda
- Graduate School of Biomedical Sciences , Nagasaki University , 1-14 Bukyo-machi , Nagasaki 852-8521 , Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences , Nagasaki University , 1-14 Bukyo-machi , Nagasaki 852-8521 , Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences , Osaka 569-1094 , Japan
| | - Takuma Kato
- Osaka University of Pharmaceutical Sciences , Osaka 569-1094 , Japan
| | - Yosuke Demizu
- Division of Organic Chemistry , National Institute of Health Sciences , Kawasaki 210-9501 , Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences , Nagasaki University , 1-14 Bukyo-machi , Nagasaki 852-8521 , Japan
| |
Collapse
|
12
|
Das S, Ben Haj Salah K, Djibo M, Inguimbert N. Peptaibols as a model for the insertions of chemical modifications. Arch Biochem Biophys 2018; 658:16-30. [DOI: 10.1016/j.abb.2018.09.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 09/05/2018] [Accepted: 09/18/2018] [Indexed: 12/13/2022]
|
13
|
Tsuji G, Misawa T, Doi M, Demizu Y. Extent of Helical Induction Caused by Introducing α-Aminoisobutyric Acid into an Oligovaline Sequence. ACS OMEGA 2018; 3:6395-6399. [PMID: 31458822 PMCID: PMC6644412 DOI: 10.1021/acsomega.8b01030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 06/05/2018] [Indexed: 06/10/2023]
Abstract
The preferred conformations of a dodecapeptide composed of l-valine (l-Val) and α-aminoisobutyric acid (Aib) residues, Boc-(l-Val-l-Val-Aib)4-OMe (3), were analyzed in solution and in the crystalline state. Peptide 3 predominantly folded into a mixture of α- and 310-(P) helical structures in solution and a (P) α helix in the crystalline state.
Collapse
Affiliation(s)
- Genichiro Tsuji
- Division
of Organic Chemistry, National Institute
of Health Sciences, Kanagawa 210-9501, Japan
| | - Takashi Misawa
- Division
of Organic Chemistry, National Institute
of Health Sciences, Kanagawa 210-9501, Japan
| | - Mitsunobu Doi
- Osaka
University of Pharmaceutical Sciences, Osaka 569-1094, Japan
| | - Yosuke Demizu
- Division
of Organic Chemistry, National Institute
of Health Sciences, Kanagawa 210-9501, Japan
| |
Collapse
|
14
|
Kobayashi H, Misawa T, Oba M, Hirata N, Kanda Y, Tanaka M, Matsuno K, Demizu Y. Structural Development of Cell-Penetrating Peptides Containing Cationic Proline Derivatives. Chem Pharm Bull (Tokyo) 2018; 66:575-580. [DOI: 10.1248/cpb.c18-00079] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hiroyuki Kobayashi
- Division of Organic Chemistry, National Institute of Health Sciences
- Department of Chemistry and Life Science, Kogakuin University
| | - Takashi Misawa
- Division of Organic Chemistry, National Institute of Health Sciences
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University
| | - Naoya Hirata
- Division of Pharmacology, National Institute of Health Sciences
| | - Yasunari Kanda
- Division of Pharmacology, National Institute of Health Sciences
| | | | - Kenji Matsuno
- Department of Chemistry and Life Science, Kogakuin University
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences
| |
Collapse
|
15
|
Nadimpally KC, Madica K, Kotmale AS, Gonnade RG, Sanjayan GJ. Helically Structured Peptide Architecture Engineered Using Dimedone as a Rigid Organic Scaffold. ChemistrySelect 2018. [DOI: 10.1002/slct.201702856] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Krishna C. Nadimpally
- Division of Organic Chemistry; National Chemical Laboratory; Dr. Homi Bhabha Road Pune 411008 India
| | - Krishnaprasad Madica
- Division of Organic Chemistry; National Chemical Laboratory; Dr. Homi Bhabha Road Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR); CSIR; Pune 411008 India
| | - Amol S. Kotmale
- Central NMR facility; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road Pune 411008 India
| | - Rajesh G. Gonnade
- Center for Materials Characterization; National Chemical Laboratory; Dr. Homi Bhahba Road Pune 411008 India
| | - Gangadhar J. Sanjayan
- Division of Organic Chemistry; National Chemical Laboratory; Dr. Homi Bhabha Road Pune 411008 India
| |
Collapse
|
16
|
Eto R, Oba M, Ueda A, Uku T, Doi M, Matsuo Y, Tanaka T, Demizu Y, Kurihara M, Tanaka M. Diastereomeric Right- and Left-Handed Helical Structures with Fourteen (R)-Chiral Centers. Chemistry 2017; 23:18120-18124. [PMID: 29134704 DOI: 10.1002/chem.201705306] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Indexed: 12/31/2022]
Abstract
The relationship between chiral centers and the helical-screw control of their peptides has already been reported, but it has yet to be elucidated in detail. A chiral four-membered ring α,α-disubstituted α-amino acid with a (R,R)-butane-2,3-diol acetal moiety at the γ-position, but no α-chiral carbon, was synthesized. X-ray crystallographic analysis unambiguously revealed that its homo-chiral heptapeptide formed right-handed (P) and left-handed (M) 310 -helical structures at a ratio of 1:1. They appeared to be enantiomeric at the peptide backbone, but diastereomeric with fourteen (R)-configuration chiral centers. Conformational analyses of homopeptides in solution also indicated that diastereomeric (P) and (M) helices existed at approximately equal amounts, with a slight preference toward right-handedness, and they quickly interchanged at room temperature. The circumstances of chiral centers are important for the control of their helical-screw direction.
Collapse
Affiliation(s)
- Ryo Eto
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Atsushi Ueda
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Tsubasa Uku
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences, Osaka, 569-1094, Japan
| | - Yosuke Matsuo
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Takashi Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| | - Yosuke Demizu
- National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Masaaki Kurihara
- Graduate School of Pharmaceutical Sciences, International University of Health and Welfare, Ohtawara, 324-8501, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, 852-8521, Japan
| |
Collapse
|
17
|
Misawa T, Kanda Y, Demizu Y. Rational Design and Synthesis of Post-Functionalizable Peptide Foldamers as Helical Templates. Bioconjug Chem 2017; 28:3029-3035. [DOI: 10.1021/acs.bioconjchem.7b00621] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Takashi Misawa
- Division of Organic Chemistry and ‡Division of Pharmacology, National Institute of Health Sciences, Tokyo 158-8501, Japan
| | - Yasunari Kanda
- Division of Organic Chemistry and ‡Division of Pharmacology, National Institute of Health Sciences, Tokyo 158-8501, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry and ‡Division of Pharmacology, National Institute of Health Sciences, Tokyo 158-8501, Japan
| |
Collapse
|
18
|
Koba Y, Ueda A, Oba M, Doi M, Demizu Y, Kurihara M, Tanaka M. Helical l
-Leu-Based Peptides Having Chiral Five-Membered Carbocyclic Ring Amino Acids with an Ethylene Acetal Moiety. ChemistrySelect 2017. [DOI: 10.1002/slct.201700832] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yurie Koba
- Graduate School of Biomedical Sciences; Nagasaki University, 1-14 Bunkyo-machi; Nagasaki 852-8521 Japan
| | - Atsushi Ueda
- Graduate School of Biomedical Sciences; Nagasaki University, 1-14 Bunkyo-machi; Nagasaki 852-8521 Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences; Nagasaki University, 1-14 Bunkyo-machi; Nagasaki 852-8521 Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences; Osaka 569-1094 Japan
| | - Yosuke Demizu
- Division of Organic Chemistry; National Institute of Health Sciences; Tokyo 158-8501 Japan
| | - Masaaki Kurihara
- Graduate School of Pharmaceutical Sciences; International University of Health and Welfare; Ohtawara 324-8501 Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences; Nagasaki University, 1-14 Bunkyo-machi; Nagasaki 852-8521 Japan
| |
Collapse
|
19
|
Misawa T, Imamura M, Ozawa Y, Haishima K, Kurihara M, Kikuchi Y, Demizu Y. Development of helix-stabilized antimicrobial peptides composed of lysine and hydrophobic α,α-disubstituted α-amino acid residues. Bioorg Med Chem Lett 2017; 27:3950-3953. [PMID: 28789896 DOI: 10.1016/j.bmcl.2017.07.074] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 07/25/2017] [Accepted: 07/28/2017] [Indexed: 01/14/2023]
Abstract
Lysine-based amphipathic nonapeptides, including homochiral peptides [Ac-(l-Lys-l-Lys-Xaa)3-NH2 (Xaa=Gly, Ala, Aib, Ac5c, or Ac6c) and Ac-(d-Lys-d-Lys-Aib)3-NH2], a heterochiral peptide [Ac-(l-Lys-d-Lys-Aib)3-NH2], and a racemic mixture of diastereomeric peptides [Ac-(rac-Lys-rac-Lys-Aib)3-NH2] were designed and synthesized to investigate the relationship between their preferred secondary structures and their antimicrobial activity. Peptide 5, [Ac-(l-Lys-l-Lys-Ac6c)3-NH2] formed a stable α-helical structure and exhibited strong activity against Gram-negative bacteria (Escherichia coli and Pseudomonas aeruginosa).
Collapse
Affiliation(s)
- Takashi Misawa
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Mitsuyoshi Imamura
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Yuto Ozawa
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Kazuchika Haishima
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Masaaki Kurihara
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Yutaka Kikuchi
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan.
| | - Yosuke Demizu
- National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya, Tokyo 158-8501, Japan.
| |
Collapse
|
20
|
Koba Y, Hirata Y, Ueda A, Oba M, Doi M, Demizu Y, Kurihara M, Tanaka M. Synthesis of chiral five-membered carbocyclic ring amino acids with an acetal moiety and helical conformations of its homo-chiral homopeptides. Biopolymers 2017; 106:555-62. [PMID: 26566886 DOI: 10.1002/bip.22769] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 11/02/2015] [Indexed: 01/11/2023]
Abstract
Chiral five-membered carbocyclic ring amino acids bearing various diol acetal moieties were synthesized starting from l-malic acid, and homo-chiral homopeptides composed of cyclic amino acid (S)-Ac5 c(3EG) bearing an ethylene glycol acetal, up to an octapeptide, were prepared. A conformational analysis revealed that (S)-Ac5 c(3EG) homopeptides formed helical structures. (S)-Ac5 c(3EG) homopeptides, up to hexapeptides, formed helical structures without controlling the helical screw direction, while (S)-Ac5 c(3EG) hepta- and octapeptides formed helical structures with a preference for the left-handed (M) helical-screw direction. © 2015 Wiley Periodicals, Inc. Biopolymers (Pept Sci) 106: 555-562, 2016.
Collapse
Affiliation(s)
- Yurie Koba
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| | - Yoko Hirata
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| | - Atsushi Ueda
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences, Osaka, 569-1094, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| |
Collapse
|
21
|
Sobiecka A, Synoradzki L, Hajmowicz H, Zawada K. Tartaric Acid and its Derivatives. Part 17. Synthesis and Applications of Tartrates. ORG PREP PROCED INT 2017. [DOI: 10.1080/00304948.2017.1260392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Agnieszka Sobiecka
- Laboratory of Technological Processes, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Ludwik Synoradzki
- Laboratory of Technological Processes, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Halina Hajmowicz
- Laboratory of Technological Processes, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Krzysztof Zawada
- Laboratory of Technological Processes, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| |
Collapse
|
22
|
Demizu Y, Doi M, Yamashita H, Misawa T, Oba M, Kurihara M, Suemune H, Tanaka M. The side-chain hydroxy groups of a cyclic α,α-disubstituted α-amino acid promote oligopeptide 310 -helix packing in the crystalline state. Biopolymers 2016; 106:757-68. [PMID: 27237543 DOI: 10.1002/bip.22881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/09/2016] [Accepted: 05/23/2016] [Indexed: 01/08/2023]
Abstract
A single chiral cyclic α,α-disubstituted amino acid with side-chain methoxymethyl (MOM) protecting groups, (3S,4S)-1-amino-(3,4-dimethoxymethoxy)cyclopentanecarboxylic acid [(S, S)-Ac5 c(dOMOM) ], or side-chain hydroxy groups, (3S,4S)-1-amino-(3,4-dihydroxy)cyclopentanecarboxylic acid [(S, S)-Ac5 c(dOH) ], was attached to the N-terminal or C-terminal position of α-aminoisobutyric acid (Aib) tetrapeptide segments; i.e., we designed and synthesized four pentapeptides, Cbz-[(S, S)-Ac5 c(dOMOM) ]-(Aib)4 -OEt (1), Cbz-[(S, S)-Ac5 c(dOH) ]-(Aib)4 -OEt (2), Cbz-(Aib)4 -[(S, S)-Ac5 c(dOMOM) ]-OMe (3), and Cbz-(Aib)4 -[(S, S)-Ac5 c(dOH) ]-OMe (4). We then analyzed the peptides' structures in the crystalline state. The four peptides all folded into 310 -helical structures; 1 formed a left-handed (M) 310 -helix, 2 formed a mixture of right-handed (P) and (M) 310 -helices, 3 formed a mixture of (P) and (M) 310 -helices, and 4 formed a (P) 310 -helix, respectively. In packing mode, the molecules of peptides 1 and 3, which both possessed an Ac5 c(dOMOM) residue, were connected by intermolecular hydrogen bonds along the peptide backbone (NH···O type). On the other hand, the packing of peptides 2 and 4, which both contained an Ac5 c(dOH) residue, was based on intermolecular hydrogen bonds derived from both the peptide backbone and the side-chain hydroxy groups of the amino acid Ac5 c(dOH) (OH···O type). © 2016 Wiley Periodicals, Inc. Biopolymers (Pept Sci) 106: 757-768, 2016.
Collapse
Affiliation(s)
- Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo, 158-8501, Japan.
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences, Osaka, 569-1094, Japan
| | - Hiroko Yamashita
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Takashi Misawa
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - Hiroshi Suemune
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-Machi, Nagasaki, 852-8521, Japan
| |
Collapse
|
23
|
Furukawa K, Oba M, Opiyo GO, Doi M, Tanaka M. Cyclic α,α-Disubstituted α-Amino Acids with Menthone in Their Side-Chains Linked through an Acetal Moiety and Helical Structures of Their Peptides. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600241] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kaori Furukawa
- Graduate School of Biomedical Sciences; Nagasaki University; 852-8521 Nagasaki Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences; Nagasaki University; 852-8521 Nagasaki Japan
| | - George Ouma Opiyo
- Graduate School of Biomedical Sciences; Nagasaki University; 852-8521 Nagasaki Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences; 569-1094 Osaka Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences; Nagasaki University; 852-8521 Nagasaki Japan
| |
Collapse
|
24
|
Crisma M, Toniolo C. Helical screw-sense preferences of peptides based on chiral, Cα-tetrasubstituted α-amino acids. Biopolymers 2016; 104:46-64. [PMID: 25363510 DOI: 10.1002/bip.22581] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 10/14/2014] [Accepted: 10/24/2014] [Indexed: 01/09/2023]
Abstract
The preferred helical screw senses of chiral α-amino acids with a C(α)-tetrasubstituted α-carbon atom, as determined in the crystal state by X-ray diffraction analyses on derivatives and peptides, are reviewed. This survey covers C(α)-methylated and C(α)-ethylated α-amino acids, as well as α-amino acids cyclized on the α-carbon, including those characterized by the combination of lack of chirality at the α-carbon with either side-chain or axial chirality. Although, in general, chiral C(α)-tetrasubstituted α-amino acids show a less pronounced bias toward a single helical screw sense than their proteinogenic (C(α)-trisubstituted) counterparts, our analysis highlights significant differences in terms of magnitude and direction of such a bias among the various sub-families of residues, and between individual amino acids within each sub-family as well. The experimental findings can be rationalized, at least in part, on the basis of steric considerations.
Collapse
Affiliation(s)
- Marco Crisma
- Institute of Biomolecular Chemistry, Padova Unit, CNR, 35131, Padova, Italy
| | | |
Collapse
|
25
|
Demizu Y, Okitsu K, Yamashita H, Doi M, Misawa T, Oba M, Tanaka M, Kurihara M. α-Helical Structures of Oligopeptides with an Alternating l-Leu-Aib Segment. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600327] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yosuke Demizu
- National Institute of Health Sciences; Setagaya 158-8501 Tokyo Japan
| | - Koyo Okitsu
- National Institute of Health Sciences; Setagaya 158-8501 Tokyo Japan
| | - Hiroko Yamashita
- National Institute of Health Sciences; Setagaya 158-8501 Tokyo Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences; 569-1094 Osaka Japan
| | - Takashi Misawa
- National Institute of Health Sciences; Setagaya 158-8501 Tokyo Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences; Nagasaki University; 852-8521 Nagasaki Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences; Nagasaki University; 852-8521 Nagasaki Japan
| | - Masaaki Kurihara
- National Institute of Health Sciences; Setagaya 158-8501 Tokyo Japan
| |
Collapse
|
26
|
Oba M, Nonaka H, Doi M, Tanaka M. Conformational studies on peptides having dipropylglycine (Dpg) or 1-aminocycloheptanecarboxylic acid (Ac7c) within the sequence ofl-leucine (Leu) residues. Biopolymers 2016; 106:210-218. [DOI: 10.1002/bip.22810] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 11/09/2015] [Accepted: 01/10/2016] [Indexed: 01/12/2023]
Affiliation(s)
- Makoto Oba
- Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki 852-8521 Japan
| | - Hikaru Nonaka
- Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki 852-8521 Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences; Osaka 569-1094 Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki 852-8521 Japan
| |
Collapse
|
27
|
Demizu Y, Yamashita H, Misawa T, Doi M, Oba M, Tanaka M, Kurihara M. Handedness Preferences of Heterochiral Helical Peptides Containing Homochiral Peptide Segments. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
28
|
Yamashita H, Oba M, Misawa T, Tanaka M, Hattori T, Naito M, Kurihara M, Demizu Y. A Helix-Stabilized Cell-Penetrating Peptide as an Intracellular Delivery Tool. Chembiochem 2015; 17:137-40. [DOI: 10.1002/cbic.201500468] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Hiroko Yamashita
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
- Graduate School of Bioscience and Biotechnology; Tokyo Institute of Technology; Yokohama 226-8501 Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki 852-8521 Japan
| | - Takashi Misawa
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences; Nagasaki University; Nagasaki 852-8521 Japan
| | - Takayuki Hattori
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
| | - Mikihiko Naito
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
| | - Masaaki Kurihara
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
- Graduate School of Bioscience and Biotechnology; Tokyo Institute of Technology; Yokohama 226-8501 Japan
| | - Yosuke Demizu
- National Institute of Health Sciences; Setagaya Tokyo 158-8501 Japan
| |
Collapse
|
29
|
Maffucci I, Clayden J, Contini A. Origin of Helical Screw Sense Selectivity Induced by Chiral Constrained Cα-Tetrasubstituted α-Amino Acids in Aib-based Peptides. J Phys Chem B 2015; 119:14003-13. [PMID: 26457452 DOI: 10.1021/acs.jpcb.5b07050] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The mechanisms behind the propensity of chiral constrained Cα-tetrasubstituted amino acids (cCTAAs) to induce one particular helical screw sense, when included in the Ac-Aib2-cCTAA-Aib2-NHMe peptide model, were studied through replica exchange molecular dynamics, potential of mean force, and quantum theory of atoms in molecules calculations. We observed that cCTAAs exert their effect on helical screw sense selectivity through the positioning of the side chain to generate steric hindrance in either the (-x, +y, +z) or (+x, +y, -z) sectors of a right-handed 3D Cartesian space, where the z axis corresponds to the axis of the helix and the Cα lies on the +y semiaxis (0, +y, 0). The different strengthening of the noncovalent interactions, also comprising C-H···O interactions, exerted by the cCTAA in the right-handed or left-handed helix was also found important to define the preference of a cCTAA for a particular helix screw sense.
Collapse
Affiliation(s)
- Irene Maffucci
- Dipartimento di Scienze Farmaceutiche - Sezione di Chimica Generale e Organica "Alessandro Marchesini", Università degli Studi di Milano , Via Venezian, 21, 20133 Milano, Italy
| | - Jonathan Clayden
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, U.K
| | - Alessandro Contini
- Dipartimento di Scienze Farmaceutiche - Sezione di Chimica Generale e Organica "Alessandro Marchesini", Università degli Studi di Milano , Via Venezian, 21, 20133 Milano, Italy
| |
Collapse
|
30
|
Demizu Y, Yamashita H, Doi M, Misawa T, Oba M, Tanaka M, Kurihara M. Topological Study of the Structures of Heterochiral Peptides Containing Equal Amounts of l-Leu and d-Leu. J Org Chem 2015; 80:8597-603. [PMID: 26274390 DOI: 10.1021/acs.joc.5b01541] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We designed and synthesized two dodecapeptides, Boc-(l-Leu-l-Leu-Aib-d-Leu-d-Leu-Aib)2-OMe (5) and Boc-l-Leu-l-Leu-Aib-(d-Leu-d-Leu-Aib)2-l-Leu-l-Leu-Aib-OMe (6), that contain equal amounts of l-Leu, d-Leu, and achiral Aib residues. The conformations of peptides 5 and 6 in the crystalline state were studied using X-ray crystallographic analysis. Peptide 5 formed a left-handed (M) α-helical structure, whereas peptide 6 was composed of a combination of fused (M) α-helical and right-handed (P) 310-helical structures. In solution, roughly equivalent amounts of (P) and (M) helices were present in 5, whereas the (M) α-helix was present in 6 as its dominant conformation.
Collapse
Affiliation(s)
- Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences , Tokyo 158-8501, Japan
| | - Hiroko Yamashita
- Division of Organic Chemistry, National Institute of Health Sciences , Tokyo 158-8501, Japan.,Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology , Yokohama 226-8501, Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences , Osaka 569-1094, Japan
| | - Takashi Misawa
- Division of Organic Chemistry, National Institute of Health Sciences , Tokyo 158-8501, Japan
| | - Makoto Oba
- Graduate School of Biomedical Sciences, Nagasaki University , Nagasaki 852-8521, Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences, Nagasaki University , Nagasaki 852-8521, Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences , Tokyo 158-8501, Japan.,Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology , Yokohama 226-8501, Japan
| |
Collapse
|
31
|
Tanda K, Eto R, Kato K, Oba M, Ueda A, Suemune H, Doi M, Demizu Y, Kurihara M, Tanaka M. Peptide foldamers composed of six-membered ring α,α-disubstituted α-amino acids with two changeable chiral acetal moieties. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
32
|
Synthesis and secondary conformations of homochiral β-oligopeptides containing aryl side chains. Chem Res Chin Univ 2015. [DOI: 10.1007/s40242-015-4423-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
33
|
Hirata T, Ueda A, Oba M, Doi M, Demizu Y, Kurihara M, Nagano M, Suemune H, Tanaka M. Amino equatorial effect of a six-membered ring amino acid on its peptide 310- and α-helices. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.02.075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
34
|
Yamashita H, Demizu Y, Misawa T, Shoda T, Kurihara M. Synthesis of a bis-cationic α,α-disubstituted amino acid (9-amino-bispidine-9-carboxylic acid) and its effects on the conformational properties of peptides. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.02.076] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
35
|
Maffucci I, Pellegrino S, Clayden J, Contini A. Mechanism of stabilization of helix secondary structure by constrained Cα-tetrasubstituted α-amino acids. J Phys Chem B 2015; 119:1350-61. [PMID: 25528885 DOI: 10.1021/jp510775e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The theoretical basis behind the ability of constrained Cα-tetrasubstituted amino acids (CTAAs) to induce stable helical conformations has been studied through Replica Exchange Molecular Dynamics Potential of Mean Force Quantum Theory of Atoms In Molecules calculations on Ac-l-Ala-CTAA-l-Ala-Aib-l-Ala-NHMe peptide models. We found that the origin of helix stabilization by CTAAs can be ascribed to at least two complementary mechanisms limiting the backbone conformational freedom: steric hindrance predominantly in the (+x,+y,-z) sector of a right-handed 3D Cartesian space, where the z axis coincides with the helical axis and the Cα of the CTAA lies on the +y axis (0,+y,0), and the establishment of additional and relatively strong C-H···O interactions involving the CTAA.
Collapse
Affiliation(s)
- Irene Maffucci
- Dipartimento di Scienze Farmaceutiche - Sezione di Chimica Generale e Organica "Alessandro Marchesini", Università degli Studi di Milano , Via Venezian, 21 20133 Milano, Italy
| | | | | | | |
Collapse
|
36
|
Demizu Y, Yamashita H, Misawa T, Doi M, Tanaka M, Kurihara M. Effects of D-Leu Residues on the Helical Secondary Structures of L-Leu-Based Nonapeptides. Chem Pharm Bull (Tokyo) 2015; 63:218-24. [DOI: 10.1248/cpb.c14-00760] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences
| | - Hiroko Yamashita
- Division of Organic Chemistry, National Institute of Health Sciences
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology
| | - Takashi Misawa
- Division of Organic Chemistry, National Institute of Health Sciences
| | | | | | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences
- Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology
| |
Collapse
|
37
|
Oba M, Kawabe N, Takazaki H, Demizu Y, Doi M, Kurihara M, Suemune H, Tanaka M. Conformational studies on peptides having chiral five-membered ring amino acid with two azido or triazole functional groups within the sequence of Aib residues. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.09.086] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
38
|
Oba M, Takazaki H, Kawabe N, Doi M, Demizu Y, Kurihara M, Kawakubo H, Nagano M, Suemune H, Tanaka M. Helical Peptide-Foldamers Having a Chiral Five-Membered Ring Amino Acid with Two Azido Functional Groups. J Org Chem 2014; 79:9125-40. [DOI: 10.1021/jo501493x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Makoto Oba
- Graduate
School of Biomedical Sciences, Nagasaki University, 1-14 Bukyo-machi, Nagasaki 852-8521, Japan
| | - Hiroomi Takazaki
- Graduate
School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Naomi Kawabe
- Graduate
School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences, Osaka 569-1094, Japan
| | - Yosuke Demizu
- Division
of Organic Chemistry, National Institute of Health Sciences, Tokyo 158-8501, Japan
| | - Masaaki Kurihara
- Division
of Organic Chemistry, National Institute of Health Sciences, Tokyo 158-8501, Japan
| | - Hiromu Kawakubo
- Department
of Pharmaceutical Sciences, Nihon Pharmaceutical University, Saitama 362-0806, Japan
| | - Masanobu Nagano
- Graduate
School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Hiroshi Suemune
- Graduate
School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Masakazu Tanaka
- Graduate
School of Biomedical Sciences, Nagasaki University, 1-14 Bukyo-machi, Nagasaki 852-8521, Japan
| |
Collapse
|
39
|
Yamashita H, Demizu Y, Shoda T, Sato Y, Oba M, Tanaka M, Kurihara M. Amphipathic short helix-stabilized peptides with cell-membrane penetrating ability. Bioorg Med Chem 2014; 22:2403-8. [DOI: 10.1016/j.bmc.2014.03.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 02/28/2014] [Accepted: 03/04/2014] [Indexed: 10/25/2022]
|
40
|
Demizu Y, Misawa T, Kurihara M. Development of Stabilized Short Helical Peptides and Their Functionalization. J SYN ORG CHEM JPN 2014. [DOI: 10.5059/yukigoseikyokaishi.72.1336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences
| | | | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences
| |
Collapse
|
41
|
Demizu Y, Yamashita H, Yamazaki N, Sato Y, Doi M, Tanaka M, Kurihara M. Oligopeptides with Equal Amounts of l- and d-Amino Acids May Prefer a Helix Screw Sense. J Org Chem 2013; 78:12106-13. [DOI: 10.1021/jo402133e] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yosuke Demizu
- Division
of Organic Chemistry, National Institute of Health Sciences, Tokyo 158-8501, Japan
| | - Hiroko Yamashita
- Division
of Organic Chemistry, National Institute of Health Sciences, Tokyo 158-8501, Japan
- Graduate
School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| | - Norikazu Yamazaki
- Division
of Organic Chemistry, National Institute of Health Sciences, Tokyo 158-8501, Japan
| | - Yukiko Sato
- Division
of Organic Chemistry, National Institute of Health Sciences, Tokyo 158-8501, Japan
| | - Mitsunobu Doi
- Osaka
University of Pharmaceutical Sciences, Osaka 569-1094, Japan
| | - Masakazu Tanaka
- Graduate
School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8521, Japan
| | - Masaaki Kurihara
- Division
of Organic Chemistry, National Institute of Health Sciences, Tokyo 158-8501, Japan
- Graduate
School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| |
Collapse
|
42
|
Oba M, Ishikawa N, Demizu Y, Kurihara M, Suemune H, Tanaka M. Helical Oligomers with a Changeable Chiral Acetal Moiety. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301450] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
43
|
Yamazaki N, Demizu Y, Sato Y, Doi M, Kurihara M. Helical Foldamer Containing a Combination of Cyclopentane-1,2-diamine and 2,2-Dimethylmalonic Acid. J Org Chem 2013; 78:9991-4. [DOI: 10.1021/jo401505b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Norikazu Yamazaki
- Division
of Organic Chemistry, National Institute of Health Sciences, Tokyo 158-8501, Japan
| | - Yosuke Demizu
- Division
of Organic Chemistry, National Institute of Health Sciences, Tokyo 158-8501, Japan
| | - Yukiko Sato
- Division
of Organic Chemistry, National Institute of Health Sciences, Tokyo 158-8501, Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences, Osaka 569-1094, Japan
| | - Masaaki Kurihara
- Division
of Organic Chemistry, National Institute of Health Sciences, Tokyo 158-8501, Japan
- Graduate
School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| |
Collapse
|
44
|
A compendium of cyclic sugar amino acids and their carbocyclic and heterocyclic nitrogen analogues. Amino Acids 2013; 45:613-89. [DOI: 10.1007/s00726-013-1521-1] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 05/21/2013] [Indexed: 12/19/2022]
|
45
|
Development of stapled short helical peptides capable of inhibiting vitamin D receptor (VDR)–coactivator interactions. Bioorg Med Chem Lett 2013; 23:4292-6. [DOI: 10.1016/j.bmcl.2013.06.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 05/27/2013] [Accepted: 06/01/2013] [Indexed: 11/19/2022]
|
46
|
Oba M, Shimabukuro A, Ono M, Doi M, Tanaka M. Synthesis of both enantiomers of cyclic methionine analogue: (R)- and (S)-3-aminotetrahydrothiophene-3-carboxylic acids. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
47
|
Lee D, Taylor MS. Regioselective silylation of pyranosides using a boronic acid/Lewis base co-catalyst system. Org Biomol Chem 2013; 11:5409-12. [DOI: 10.1039/c3ob40981c] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
48
|
Anan K, Demizu Y, Oba M, Kurihara M, Doi M, Suemune H, Tanaka M. Helical Structures of Bicyclicα-Amino Acid Homochiral Oligomers with the Stereogenic Centers at the Side-Chain Fused-Ring Junctions. Helv Chim Acta 2012. [DOI: 10.1002/hlca.201200403] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
49
|
Demizu Y, Nagoya S, Doi M, Sato Y, Tanaka M, Kurihara M. Twisted structure of a cyclic hexapeptide containing a combination of alternating L-Leu-D-Leu-Aib segments. J Org Chem 2012; 77:9361-5. [PMID: 23006337 DOI: 10.1021/jo301509c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We designed and synthesized a C(2)-symmetric cyclic hexapeptide, cyclo(L-Leu-D-Leu-Aib)(2) (2), which contains L- and D-amino acids and achiral Aib residues. The conformation of 2 was analyzed in the crystalline state and in solution, which was a unique figure-eight-shaped conformation.
Collapse
Affiliation(s)
- Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Tokyo 158-8501, Japan.
| | | | | | | | | | | |
Collapse
|
50
|
Demizu Y, Yabuki YU, Doi M, Sato Y, Tanaka M, Kurihara M. Conformations of helical Aib peptides containing a pair of l-amino acid and d-amino acid. J Pept Sci 2012; 18:466-75. [PMID: 22619002 DOI: 10.1002/psc.2418] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 04/18/2012] [Accepted: 04/20/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Yosuke Demizu
- Division of Organic Chemistry; National Institute of Health Sciences; 1-18-1, Kamiyoga, Setagaya; Tokyo; 158-8501; Japan
| | - Yu-u Yabuki
- Division of Organic Chemistry; National Institute of Health Sciences; 1-18-1, Kamiyoga, Setagaya; Tokyo; 158-8501; Japan
| | - Mitsunobu Doi
- Osaka University of Pharmaceutical Sciences; Osaka; 569-1094; Japan
| | - Yukiko Sato
- Division of Organic Chemistry; National Institute of Health Sciences; 1-18-1, Kamiyoga, Setagaya; Tokyo; 158-8501; Japan
| | - Masakazu Tanaka
- Graduate School of Biomedical Sciences; Nagasaki University; 1-14 Bunkyo-machi; Nagasaki; 852-8521; Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry; National Institute of Health Sciences; 1-18-1, Kamiyoga, Setagaya; Tokyo; 158-8501; Japan
| |
Collapse
|