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Beutel J, Tannig P, Di Vincenzo R, Schumacher T, Überla K, Eichler J. Bind&Bite: covalently stabilized heterodimeric coiled-coil peptides for the site-selective, cysteine-free chemical modification of proteins. RSC Chem Biol 2023; 4:794-803. [PMID: 37799587 PMCID: PMC10549240 DOI: 10.1039/d3cb00122a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 07/16/2023] [Indexed: 10/07/2023] Open
Abstract
Ensuring site-selectivity in covalent chemical modification of proteins is one of the major challenges in chemical biology and related biomedical disciplines. Most current strategies either utilize the selectivity of proteases, or are based on reactions involving the thiol groups of cysteine residues. We have modified a pair of heterodimeric coiled-coil peptides to enable the selective covalent stabilization of the dimer without using enzymes or cysteine moieties. Fusion of one peptide to the protein of interest, in combination with linking the desired chemical modification to the complementary peptide, facilitates stable, regio-selective attachment of the chemical moiety to the protein, through the formation of the covalently stabilized coiled-coil. This ligation method, which is based on the formation of isoeptide and squaramide bonds, respectively, between the coiled-coil peptides, was successfully used to selectively modify the HIV-1 envelope glycoprotein. Covalent stabilization of the coiled-coil also facilitated truncation of the peptides by one heptad sequence. Furthermore, selective addressing of individual positions of the peptides enabled the generation of mutually selective coiled-coils. The established method, termed Bind&Bite, can be expected to be beneficial for a range of biotechnological and biomedical applications, in which chemical moieties need to be stably attached to proteins in a site-selective fashion.
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Affiliation(s)
- Jannis Beutel
- Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg (FAU) Erlangen Germany
- Institut Virion-Serion GmbH Würzburg Germany
| | - Pierre Tannig
- Institute of Clinical and Molecular Virology, University of Erlangen-Nürnberg (FAU) Erlangen Germany
| | - Riccardo Di Vincenzo
- Institute of Clinical and Molecular Virology, University of Erlangen-Nürnberg (FAU) Erlangen Germany
| | | | - Klaus Überla
- Institute of Clinical and Molecular Virology, University of Erlangen-Nürnberg (FAU) Erlangen Germany
| | - Jutta Eichler
- Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg (FAU) Erlangen Germany
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2
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Matsuzaki K. Elucidation of Complex Dynamic Intermolecular Interactions in Membranes. Chem Pharm Bull (Tokyo) 2022; 70:1-9. [PMID: 34980725 DOI: 10.1248/cpb.c21-00815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Biomembranes composed of various proteins and lipids play important roles in cellular functions, such as signal transduction and substance transport. In addition, some bioactive peptides and pathogenic proteins target membrane proteins and lipids to exert their effects. Therefore, an understanding of dynamic and complex intermolecular interactions among these membrane constituents is needed to elucidate their mechanisms. This review summarizes the major research carried out in the author's laboratory on how lipids and their inhomogeneous distributions regulate the structures and functions of antimicrobial peptides and Alzheimer's amyloid β-protein. Also, how to detect transmembrane helix-helix and membrane protein-protein interactions and how they are modulated by lipids are discussed.
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Wolf P, Gavins G, Beck‐Sickinger AG, Seitz O. Strategies for Site-Specific Labeling of Receptor Proteins on the Surfaces of Living Cells by Using Genetically Encoded Peptide Tags. Chembiochem 2021; 22:1717-1732. [PMID: 33428317 PMCID: PMC8248378 DOI: 10.1002/cbic.202000797] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/08/2021] [Indexed: 12/14/2022]
Abstract
Fluorescence microscopy imaging enables receptor proteins to be investigated within their biological context. A key challenge is to site-specifically incorporate reporter moieties into proteins without interfering with biological functions or cellular networks. Small peptide tags offer the opportunity to combine inducible labeling with small tag sizes that avoid receptor perturbation. Herein, we review the current state of live-cell labeling of peptide-tagged cell-surface proteins. Considering their importance as targets in medicinal chemistry, we focus on membrane receptors such as G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs). We discuss peptide tags that i) are subject to enzyme-mediated modification reactions, ii) guide the complementation of reporter proteins, iii) form coiled-coil complexes, and iv) interact with metal complexes. Given our own contributions in the field, we place emphasis on peptide-templated labeling chemistry.
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Affiliation(s)
- Philipp Wolf
- Faculty of Life SciencesInstitute of BiochemistryLeipzig UniversityBrüderstrasse 3404103LeipzigGermany
| | - Georgina Gavins
- Faculty of Mathematics and Natural SciencesDepartment of ChemistryHumboldt-Universität zu BerlinBrook-Taylor-Str. 212489BerlinGermany
| | - Annette G. Beck‐Sickinger
- Faculty of Life SciencesInstitute of BiochemistryLeipzig UniversityBrüderstrasse 3404103LeipzigGermany
| | - Oliver Seitz
- Faculty of Mathematics and Natural SciencesDepartment of ChemistryHumboldt-Universität zu BerlinBrook-Taylor-Str. 212489BerlinGermany
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Abstract
In this study, we propose a microchip that is sequentially capable of fluorescently staining and washing DNAs. The main advantage of this microchip is that it allows for one-step preparation of small amounts of solution without degrading microscopic bio-objects such as the DNAs, cells, and biomolecules to be stained. The microchip consists of two inlets, the main channel, staining zone, washing zone, and one outlet, and was processed using a femtosecond laser system. High molecular transport of rhodamine B to deionized water was observed in the performance test of the microchip. Results revealed that the one-step procedure of on-chip DNA staining and washing was excellent compared to the conventional staining method. The one-step preparation of stained and washed DNAs through the microchip will be useful for preparing small volumes of experimental samples.
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Yano Y, Matsuzaki K. Live-cell imaging of membrane proteins by a coiled-coil labeling method-Principles and applications. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2019; 1861:1011-1017. [PMID: 30831076 DOI: 10.1016/j.bbamem.2019.02.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/18/2019] [Accepted: 02/27/2019] [Indexed: 02/09/2023]
Abstract
In situ investigations in living cell membranes are important to elucidate the dynamic behaviors of membrane proteins in complex biomembrane environments. Protein-specific labeling is a key technique for the detection of a target protein by fluorescence imaging. The use of post-translational labeling methods using a genetically encodable tag and synthetic probes targeting the tag offer a smaller label size, labeling with synthetic fluorophores, and precise control of the labeling ratio in multicolor labeling compared with conventional genetic fusions with fluorescent proteins. This review focuses on tag-probe labeling studies for live-cell analysis of membrane proteins based on heterodimeric peptide pairs that form coiled-coil structures. The robust and simple peptide-peptide interaction enables not only labeling of membrane proteins by noncovalent interactions, but also covalent crosslinking and acyl transfer reactions guided by coiled-coil assembly. A number of studies have demonstrated that membrane protein behaviors in live cells, such as internalization of receptors and the oligomeric states of various membrane proteins (G-protein-coupled receptors, epidermal growth factor receptors, influenza A M2 channel, and glycopholin A), can be precisely analyzed using coiled-coil labeling, indicating the potential of this labeling method in membrane protein research.
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Affiliation(s)
- Yoshiaki Yano
- Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Katsumi Matsuzaki
- Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida-Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan.
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6
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Yano Y, Matsuzaki K. [Fluorescent Peptide Tools for Studying the Self-association of Membrane Proteins]. YAKUGAKU ZASSHI 2019; 139:273-276. [PMID: 30713239 DOI: 10.1248/yakushi.18-00174-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Detecting the behaviors of proteins in membranes is often challenging; we need to develop new methods to better understand the mechanisms involved. We have developed two types of peptide-based experimental systems that can detect the self-association of proteins in bilayer environments: 1) a single-pair fluorescence detection system for studying the self-association of transmembrane helices in model membranes; and 2) live-cell fluorescence labeling and analysis of the oligomeric state of membrane proteins using a coiled-coil labeling method. By using these methods, we show that membrane cholesterol significantly affects the self-association of transmembrane helices.
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Affiliation(s)
- Yoshiaki Yano
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University
| | - Katsumi Matsuzaki
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University
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Proximity-Driven Site-Specific and Covalent Labeling of Proteins with a TexasRed Fluorophore Reacting (ReacTR) Peptide Tag. Methods Mol Biol 2019; 2008:179-190. [PMID: 31124097 DOI: 10.1007/978-1-4939-9537-0_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
It is of vital importance to visualize proteins in living cells noninvasively in order to elucidate their functions. Here, we describe a fast, efficient, and one-step covalent protein labeling method utilizing a small peptide tag called TR512, which was previously engineered to bind to TexasRed fluorophore by phage display. To covalently label proteins with TexasRed fluorophore, proteins of interest (POI) were fused to a reactive TR512 (ReacTR) tag carrying two cysteine residues. Upon addition of TexasRed fluorophore conjugated to N-α-chloroacetamide, a cysteine group of the ReacTR tag rapidly reacts with the electrophilic N-α-chloroacetamide group due to the proximity effect by forming a covalent bond between the fluorophore and ReacTR tag. Our approach uses a small peptide tag and a small-molecule fluorophore for labeling; thereby minimal perturbation on the function and dynamics of the POI is expected.
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Rink WM, Thomas F. De Novo Designed α-Helical Coiled-Coil Peptides as Scaffolds for Chemical Reactions. Chemistry 2018; 25:1665-1677. [DOI: 10.1002/chem.201802849] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Indexed: 01/31/2023]
Affiliation(s)
- W. Mathis Rink
- Institute of Organic and Biomolecular Chemistry; Georg-August-Universität Göttingen; Tammannstraße 2 37077 Göttingen Germany
| | - Franziska Thomas
- Institute of Organic and Biomolecular Chemistry; Georg-August-Universität Göttingen; Tammannstraße 2 37077 Göttingen Germany
- Center for Biostructural Imaging of Neurodegeneration; Von-Siebold-Straße 3a 37075 Göttingen Germany
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Groth MC, Rink WM, Meyer NF, Thomas F. Kinetic studies on strand displacement in de novo designed parallel heterodimeric coiled coils. Chem Sci 2018; 9:4308-4316. [PMID: 29780562 PMCID: PMC5944379 DOI: 10.1039/c7sc05342h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 04/14/2018] [Indexed: 12/14/2022] Open
Abstract
Among the protein folding motifs, which are accessible by de novo design, the parallel heterodimeric coiled coil is most frequently used in bioinspired applications and chemical biology in general. This is due to the straightforward sequence-to-structure relationships, which it has in common with all coiled-coil motifs, and the heterospecificity, which allows control of association. Whereas much focus was laid on designing orthogonal coiled coils, systematic studies on controlling association, for instance by strand displacement, are rare. As a contribution to the design of dynamic coiled-coil-based systems, we studied the strand-displacement mechanism in obligate heterodimeric coiled coils to investigate the suitability of the dissociation constants (KD) as parameters for the prediction of the outcome of strand-displacement reactions. We use two sets of heterodimeric coiled coils, the previously reported N-A x B y and the newly characterized C-A x B y . Both comprise KD values in the μM to sub-nM regime. Strand displacement is explored by CD titration and a FRET-based kinetic assay and is proved to be an equilibrium reaction with half-lifes from a few seconds up to minutes. We could fit the displacement data by a competitive binding model, giving rate constants and overall affinities of the underlying association and dissociation reactions. The overall affinities correlate well with the ratios of KD values determined by CD-thermal denaturation experiments and, hence, support the dissociative mechanism of strand displacement in heterodimeric coiled coils. From the results of more than 100 different displacement reactions we are able to classify three categories of overall affinities, which allow for easy prediction of the equilibrium of strand displacement in two competing heterodimeric coiled coils.
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Affiliation(s)
- Mike C Groth
- Georg-August-Universität Göttingen , Institute of Organic and Biomolecular Chemistry , Tammannstraße 2 , 37077 Göttingen , Germany .
| | - W Mathis Rink
- Georg-August-Universität Göttingen , Institute of Organic and Biomolecular Chemistry , Tammannstraße 2 , 37077 Göttingen , Germany .
| | - Nils F Meyer
- Georg-August-Universität Göttingen , Institute of Organic and Biomolecular Chemistry , Tammannstraße 2 , 37077 Göttingen , Germany .
| | - Franziska Thomas
- Georg-August-Universität Göttingen , Institute of Organic and Biomolecular Chemistry , Tammannstraße 2 , 37077 Göttingen , Germany .
- Center for Biostructural Imaging of Neurodegeneration , Von-Siebold-Straße 3a , 37075 Göttingen , Germany
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Ding L, Jiang Y, Zhang J, Klok HA, Zhong Z. pH-Sensitive Coiled-Coil Peptide-Cross-Linked Hyaluronic Acid Nanogels: Synthesis and Targeted Intracellular Protein Delivery to CD44 Positive Cancer Cells. Biomacromolecules 2018; 19:555-562. [PMID: 29284258 DOI: 10.1021/acs.biomac.7b01664] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The clinical translation of protein drugs that act intracellularly is limited by the absence of safe and efficient intracellular protein delivery vehicles. Here, pH-sensitive coiled-coil peptide-cross-linked hyaluronic acid nanogels (HA-cNGs) were designed and investigated for targeted intracellular protein delivery to CD44 overexpressing MCF-7 breast cancer cells. HA-cNGs were obtained with a small size of 176 nm from an equivalent mixture of hyaluronic acid conjugates with GY(EIAALEK)3GC (E3) and GY(KIAALKE)3GC (K3) peptides, respectively, at pH 7.4 by nanoprecipitation. Circular dichroism (CD) proved the formation of coiled-coil structures between E3 and K3 peptides at pH 7.4 while fast uncoiling at pH 5.0. HA-cNGs showed facile loading of cytochrome C (CC) and greatly accelerated CC release under mild acidic conditions (18.4%, 76.8%, and 91.4% protein release in 24 h at pH 7.4, 6.0, and 5.0, respectively). Confocal microscopy and flow cytometry displayed efficient internalization of CC-loaded HA-cNGs and effective endosomal escape of CC in MCF-7 cancer cells. Remarkably, HA-cNGs loaded with saporin, a ribosome inactivating protein, exhibited significantly enhanced apoptotic activity to MCF-7 cells with a low IC50 of 12.2 nM. These coiled-coil peptide-cross-linked hyaluronic acid nanogels have appeared as a simple and multifunctional platform for efficient intracellular protein delivery.
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Affiliation(s)
- Lingling Ding
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, People's Republic of China
| | - Yu Jiang
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, People's Republic of China
| | - Jian Zhang
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, People's Republic of China
| | - Harm-Anton Klok
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, People's Republic of China.,Laboratoire des Polymères, Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL) , Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory, and Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou, 215123, People's Republic of China
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11
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A One-Pot Three-Component Double-Click Method for Synthesis of [ 67Cu]-Labeled Biomolecular Radiotherapeutics. Sci Rep 2017; 7:1912. [PMID: 28507297 PMCID: PMC5432496 DOI: 10.1038/s41598-017-02123-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 04/06/2017] [Indexed: 12/14/2022] Open
Abstract
A one-pot three-component double-click process for preparing tumor-targeting agents for cancer radiotherapy is described here. By utilizing DOTA (or NOTA) containing tetrazines and the TCO-substituted aldehyde, the two click reactions, the tetrazine ligation (an inverse electron-demand Diels-Alder cycloaddition) and the RIKEN click (a rapid 6π-azaelectrocyclization), could simultaneously proceed under mild conditions to afford covalent attachment of the metal chelator DOTA or NOTA to biomolecules such as to albumin and anti-IGSF4 antibody without altering their activities. Subsequently, radiolabeling of DOTA- or NOTA-attached albumin and anti-IGSF4 antibody (an anti-tumor-targeting antibody) with [67Cu], a β−-emitting radionuclide, could be achieved in a highly efficient manner via a simple chelation with DOTA proving to be a more superior chelator than NOTA. Our work provides a new and operationally simple method for introducing the [67Cu] isotope even in large quantities to biomolecules, thereby representing an important process for preparations of clinically relevant tumor-targeting agents for radiotherapy.
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Yano Y, Kondo K, Watanabe Y, Zhang TO, Ho JJ, Oishi S, Fujii N, Zanni MT, Matsuzaki K. GXXXG-Mediated Parallel and Antiparallel Dimerization of Transmembrane Helices and Its Inhibition by Cholesterol: Single-Pair FRET and 2D IR Studies. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201609708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yoshiaki Yano
- Graduate School of Pharmaceutical Sciences; Kyoto University; Kyoto 606-8501 Japan
| | - Kotaro Kondo
- Graduate School of Pharmaceutical Sciences; Kyoto University; Kyoto 606-8501 Japan
| | - Yuta Watanabe
- Graduate School of Pharmaceutical Sciences; Kyoto University; Kyoto 606-8501 Japan
| | - Tianqi O. Zhang
- Department of Chemistry; University of Wisconsin; Madison WI 53706 USA
| | - Jia-Jung Ho
- Department of Chemistry; University of Wisconsin; Madison WI 53706 USA
| | - Shinya Oishi
- Graduate School of Pharmaceutical Sciences; Kyoto University; Kyoto 606-8501 Japan
| | - Nobutaka Fujii
- Graduate School of Pharmaceutical Sciences; Kyoto University; Kyoto 606-8501 Japan
| | - Martin T. Zanni
- Department of Chemistry; University of Wisconsin; Madison WI 53706 USA
| | - Katsumi Matsuzaki
- Graduate School of Pharmaceutical Sciences; Kyoto University; Kyoto 606-8501 Japan
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Yano Y, Kondo K, Watanabe Y, Zhang TO, Ho JJ, Oishi S, Fujii N, Zanni MT, Matsuzaki K. GXXXG-Mediated Parallel and Antiparallel Dimerization of Transmembrane Helices and Its Inhibition by Cholesterol: Single-Pair FRET and 2D IR Studies. Angew Chem Int Ed Engl 2017; 56:1756-1759. [PMID: 28071848 DOI: 10.1002/anie.201609708] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 12/05/2016] [Indexed: 02/06/2023]
Abstract
Small-residue-mediated interhelical packings are ubiquitously found in helical membrane proteins, although their interaction dynamics and lipid dependence remain mostly uncharacterized. We used a single-pair FRET technique to examine the effect of a GXXXG motif on the association of de novo designed (AALALAA)3 helices in liposomes. Dimerization occurred with sub-second lifetimes, which was abolished by cholesterol. Utilizing the nearly instantaneous time-resolution of 2D IR spectroscopy, parallel and antiparallel helix associations were identified by vibrational couplings across helices at their interface. Taken together, the data illustrate that the GXXXG motif controls helix packing but still allows for a dynamic and lipid-regulated oligomeric state.
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Affiliation(s)
- Yoshiaki Yano
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
| | - Kotaro Kondo
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
| | - Yuta Watanabe
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
| | - Tianqi O Zhang
- Department of Chemistry, University of Wisconsin, Madison, WI, 53706, USA
| | - Jia-Jung Ho
- Department of Chemistry, University of Wisconsin, Madison, WI, 53706, USA
| | - Shinya Oishi
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
| | - Nobutaka Fujii
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
| | - Martin T Zanni
- Department of Chemistry, University of Wisconsin, Madison, WI, 53706, USA
| | - Katsumi Matsuzaki
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan
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Lotze J, Reinhardt U, Seitz O, Beck-Sickinger AG. Peptide-tags for site-specific protein labelling in vitro and in vivo. MOLECULAR BIOSYSTEMS 2016; 12:1731-45. [DOI: 10.1039/c6mb00023a] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Peptide-tag based labelling can be achieved by (i) enzymes (ii) recognition of metal ions or small molecules and (iii) peptide–peptide interactions and enables site-specific protein visualization to investigate protein localization and trafficking.
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Affiliation(s)
- Jonathan Lotze
- Institut für Biochemie
- Universität Leipzig
- D-04103 Leipzig
- Germany
| | - Ulrike Reinhardt
- Institut für Chemie
- Humboldt-Universität zu Berlin
- D-12489 Berlin
- Germany
| | - Oliver Seitz
- Institut für Chemie
- Humboldt-Universität zu Berlin
- D-12489 Berlin
- Germany
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