1
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Kozak F, Brandis D, Pötzl C, Epasto LM, Reichinger D, Obrist D, Peterlik H, Polyansky A, Zagrovic B, Daus F, Geyer A, Becker CFW, Kurzbach D. An Atomistic View on the Mechanism of Diatom Peptide-Guided Biomimetic Silica Formation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401239. [PMID: 38874418 PMCID: PMC11321707 DOI: 10.1002/advs.202401239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 05/23/2024] [Indexed: 06/15/2024]
Abstract
Deciphering nature's remarkable way of encoding functions in its biominerals holds the potential to enable the rational development of nature-inspired materials with tailored properties. However, the complex processes that convert solution-state precursors into solid biomaterials remain largely unknown. In this study, an unconventional approach is presented to characterize these precursors for the diatom-derived peptides R5 and synthetic Silaffin-1A1 (synSil-1A1). These molecules can form defined supramolecular assemblies in solution, which act as templates for solid silica structures. Using a tailored structural biology toolbox, the structure-function relationships of these self-assemblies are unveiled. NMR-derived constraints are employed to enable a recently developed fractal-cluster formalism and then reveal the architecture of the peptide assemblies in atomistic detail. Finally, by monitoring the self-assembly activities during silica formation at simultaneous high temporal and residue resolution using real-time spectroscopy, the mechanism is elucidated underlying template-driven silica formation. Thus, it is demonstrated how to exercise morphology control over bioinorganic solids by manipulating the template architectures. It is found that the morphology of the templates is translated into the shape of bioinorganic particles via a mechanism that includes silica nucleation on the solution-state complexes' surfaces followed by complete surface coating and particle precipitation.
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Affiliation(s)
- Fanny Kozak
- Institute of Biological Chemistry, Faculty of ChemistryUniversity of ViennaWähringer Str. 38Vienna109Austria
- Vienna Doctoral School in Chemistry (DoSChem)University of ViennaWähringer Str. 42Vienna1090Austria
| | - Dörte Brandis
- Institute of Biological Chemistry, Faculty of ChemistryUniversity of ViennaWähringer Str. 38Vienna109Austria
- Vienna Doctoral School in Chemistry (DoSChem)University of ViennaWähringer Str. 42Vienna1090Austria
| | - Christopher Pötzl
- Institute of Biological Chemistry, Faculty of ChemistryUniversity of ViennaWähringer Str. 38Vienna109Austria
- Vienna Doctoral School in Chemistry (DoSChem)University of ViennaWähringer Str. 42Vienna1090Austria
| | - Ludovica M. Epasto
- Institute of Biological Chemistry, Faculty of ChemistryUniversity of ViennaWähringer Str. 38Vienna109Austria
- Vienna Doctoral School in Chemistry (DoSChem)University of ViennaWähringer Str. 42Vienna1090Austria
| | - Daniela Reichinger
- Institute of Biological Chemistry, Faculty of ChemistryUniversity of ViennaWähringer Str. 38Vienna109Austria
- Vienna Doctoral School in Chemistry (DoSChem)University of ViennaWähringer Str. 42Vienna1090Austria
| | - Dominik Obrist
- Institute of Biological Chemistry, Faculty of ChemistryUniversity of ViennaWähringer Str. 38Vienna109Austria
- Vienna Doctoral School in Chemistry (DoSChem)University of ViennaWähringer Str. 42Vienna1090Austria
| | - Herwig Peterlik
- Faculty of PhysicsUniversity of ViennaBoltzmanngasse 5Vienna1090Austria
| | - Anton Polyansky
- Department of Structural and Computational BiologyMax Perutz LabsUniversity of ViennaCampus Vienna Biocenter 5ViennaA‐1030Austria
| | - Bojan Zagrovic
- Department of Structural and Computational BiologyMax Perutz LabsUniversity of ViennaCampus Vienna Biocenter 5ViennaA‐1030Austria
| | - Fabian Daus
- Faculty of ChemistryPhilipps‐Universität Marburg35032MarburgGermany
| | - Armin Geyer
- Faculty of ChemistryPhilipps‐Universität Marburg35032MarburgGermany
| | - Christian FW Becker
- Institute of Biological Chemistry, Faculty of ChemistryUniversity of ViennaWähringer Str. 38Vienna109Austria
- Vienna Doctoral School in Chemistry (DoSChem)University of ViennaWähringer Str. 42Vienna1090Austria
| | - Dennis Kurzbach
- Institute of Biological Chemistry, Faculty of ChemistryUniversity of ViennaWähringer Str. 38Vienna109Austria
- Vienna Doctoral School in Chemistry (DoSChem)University of ViennaWähringer Str. 42Vienna1090Austria
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2
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Zhang Z, Lynch CJ, Huo Y, Chakraborty S, Cremer PS, Mozhdehi D. Modulating Phase Behavior in Fatty Acid-Modified Elastin-like Polypeptides (FAMEs): Insights into the Impact of Lipid Length on Thermodynamics and Kinetics of Phase Separation. J Am Chem Soc 2024; 146:5383-5392. [PMID: 38353994 PMCID: PMC10910508 DOI: 10.1021/jacs.3c12791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/29/2024]
Abstract
Although post-translational lipidation is prevalent in eukaryotes, its impact on the liquid-liquid phase separation of disordered proteins is still poorly understood. Here, we examined the thermodynamic phase boundaries and kinetics of aqueous two-phase system (ATPS) formation for a library of elastin-like polypeptides modified with saturated fatty acids of different chain lengths. By systematically altering the physicochemical properties of the attached lipids, we were able to correlate the molecular properties of lipids to changes in the thermodynamic phase boundaries and the kinetic stability of droplets formed by these proteins. We discovered that increasing the chain length lowers the phase separation temperature in a sigmoidal manner due to alterations in the unfavorable interactions between protein and water and changes in the entropy of phase separation. Our kinetic studies unveiled remarkable sensitivity to lipid length, which we propose is due to the temperature-dependent interactions between lipids and the protein. Strikingly, we found that the addition of just a single methylene group is sufficient to allow tuning of these interactions as a function of temperature, with proteins modified with C7-C9 lipids exhibiting non-Arrhenius dependence in their phase separation, a behavior that is absent for both shorter and longer fatty acids. This work advances our theoretical understanding of protein-lipid interactions and opens avenues for the rational design of lipidated proteins in biomedical paradigms, where precise control over the phase separation is pivotal.
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Affiliation(s)
- Zhe Zhang
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Christopher J. Lynch
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Ying Huo
- Department
of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Somya Chakraborty
- Fayetteville-Manlius
High School, Manlius, New York 13104, United States
| | - Paul S. Cremer
- Department
of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Davoud Mozhdehi
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
- BioInspired
Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
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3
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Dai Y, You L, Chilkoti A. Engineering synthetic biomolecular condensates. NATURE REVIEWS BIOENGINEERING 2023; 1:1-15. [PMID: 37359769 PMCID: PMC10107566 DOI: 10.1038/s44222-023-00052-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 03/06/2023] [Indexed: 06/28/2023]
Abstract
The concept of phase-separation-mediated formation of biomolecular condensates provides a new framework to understand cellular organization and cooperativity-dependent cellular functions. With growing understanding of how biological systems drive phase separation and how cellular functions are encoded by biomolecular condensates, opportunities have emerged for cellular control through engineering of synthetic biomolecular condensates. In this Review, we discuss how to construct synthetic biomolecular condensates and how they can regulate cellular functions. We first describe the fundamental principles by which biomolecular components can drive phase separation. Next, we discuss the relationship between the properties of condensates and their cellular functions, which informs the design of components to create programmable synthetic condensates. Finally, we describe recent applications of synthetic biomolecular condensates for cellular control and discuss some of the design considerations and prospective applications.
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Affiliation(s)
- Yifan Dai
- Department of Biomedical Engineering, Duke University, Durham, NC USA
| | - Lingchong You
- Department of Biomedical Engineering, Duke University, Durham, NC USA
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, NC USA
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4
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Dai J, Hu JJ, Dong X, Chen B, Dong X, Liu R, Xia F, Lou X. Deep Downregulation of PD-L1 by Caged Peptide-Conjugated AIEgen/miR-140 Nanoparticles for Enhanced Immunotherapy. Angew Chem Int Ed Engl 2022; 61:e202117798. [PMID: 35224832 DOI: 10.1002/anie.202117798] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Indexed: 12/11/2022]
Abstract
Downregulating programmed cell death ligand 1(PD-L1) protein levels in tumor cells is an effective way to achieve immune system activation for oncology treatment, but current strategies are inadequate. Here, we design a caged peptide-AIEgen probe (GCP) to self-assemble with miR-140 forming GCP/miR-140 nanoparticles. After entering tumor cells, GCP/miR-140 disassembles in the presence of Cathepsin B (CB) and releases caged GO203 peptide, miR-140 and PyTPA. Peptide decages in the highly reductive intracellular environment and binds to mucin 1 (MUC1), thereby downregulating the expression of PD-L1. Meanwhile, miR-140 reduces PD-L1 expression by targeting downregulation of PD-L1 mRNA. Under the action of PyTPA-mediated photodynamic therapy (PDT), tumor-associated antigens are released, triggering immune cell attack on tumor cells. This multiple mechanism-based strategy of deeply downregulating PD-L1 in tumor cells activates the immune system and thus achieves effective immunotherapy.
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Affiliation(s)
- Jun Dai
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430034, China
| | - Jing-Jing Hu
- State Key Laboratory of Biogeology and Environmental Geology, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Xiaoqi Dong
- State Key Laboratory of Biogeology and Environmental Geology, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Biao Chen
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430034, China
| | - Xiyuan Dong
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430034, China
| | - Rui Liu
- State Key Laboratory of Biogeology and Environmental Geology, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Fan Xia
- State Key Laboratory of Biogeology and Environmental Geology, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Xiaoding Lou
- State Key Laboratory of Biogeology and Environmental Geology, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
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5
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Deep Downregulation of PD‐L1 by Caged Peptide‐Conjugated AIEgen/miR‐140 Nanoparticles for Enhanced Immunotherapy. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Garcia Garcia C, Patkar SS, Jovic N, Mittal J, Kiick KL. Alteration of Microstructure in Biopolymeric Hydrogels via Compositional Modification of Resilin-Like Polypeptides. ACS Biomater Sci Eng 2021; 7:4244-4257. [DOI: 10.1021/acsbiomaterials.0c01543] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Cristobal Garcia Garcia
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Sai S. Patkar
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Nina Jovic
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Jeetain Mittal
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Kristi L. Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
- Delaware Biotechnology Institute, Newark, Delaware 19716, United States
- Biomedical Engineering, University of Delaware, Newark, Delaware 19176, United States
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7
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Laaß K, Quiroz FG, Hunold J, Roberts S, Chilkoti A, Hinderberger D. Nanoscopic Dynamics Dictate the Phase Separation Behavior of Intrinsically Disordered Proteins. Biomacromolecules 2021; 22:1015-1025. [PMID: 33403854 DOI: 10.1021/acs.biomac.0c01768] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Many intrinsically disordered proteins (IDPs) in nature may undergo liquid-liquid phase separation to assemble membraneless organelles with varied liquid-like properties and stability/dynamics. While solubility changes underlie these properties, little is known about hydration dynamics in phase-separating IDPs. Here, by studying IDP polymers of similar composition but distinct liquid-like dynamics and stability upon separation, namely, thermal hysteresis, we probe at a nanoscopic level hydration/dehydration dynamics in IDPs as they reversibly switch between phase separation states. Using continuous-wave electron paramagnetic resonance (CW EPR) spectroscopy, we observe distinct backbone and amino acid side-chain hydration dynamics in these IDPs. This nanoscopic view reveals that side-chain rehydration creates a dynamic water shield around the main-chain backbone that effectively and counterintuitively prevents water penetration and governs IDP solubility. We find that the strength of this superficial water shell is a sequence feature of IDPs that encodes for the stability of their phase-separated assemblies. Our findings expose and offer an initial understanding of how the complexity of nanoscopic water-IDP interactions dictate their rich phase separation behavior.
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Affiliation(s)
- Katharina Laaß
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Felipe García Quiroz
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708-0281, United States
| | - Johannes Hunold
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Stefan Roberts
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708-0281, United States
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708-0281, United States
| | - Dariush Hinderberger
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, 06120 Halle (Saale), Germany
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8
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Acosta S, Poocza L, Quintanilla-Sierra L, Rodríguez-Cabello JC. Charge Density as a Molecular Modulator of Nanostructuration in Intrinsically Disordered Protein Polymers. Biomacromolecules 2020; 22:158-170. [PMID: 32840359 DOI: 10.1021/acs.biomac.0c00934] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Intrinsically disordered protein polymers (IDPPs) have attracted a lot of attention in the development of bioengineered devices and for use as study models in molecular biology because of their biomechanical properties and stimuli-responsiveness. The present study aims to understand the effect of charge density on the self-assembly of IDPPs. To that end, a library of recombinant IDPPs based on an amphiphilic diblock design with different charge densities was bioproduced, and their supramolecular assembly was characterized on the nano-, meso-, and microscale. Although the phase transition was driven by the collapse of hydrophobic moieties, the hydrophilic block composition strongly affected hierarchical assembly and, therefore, enabled the production of new molecular architectures, thus leading to new dynamics that govern the liquid-gel transition. These results highlight the importance of electrostatic repulsion for the hierarchical assembly of IDPPs and provide insights into the manufacture of supramolecular protein-based materials.
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Affiliation(s)
- Sergio Acosta
- Bioforge Lab, CIBER-BBN, University of Valladolid, Paseo Belén 19, 47011, Valladolid, Spain
| | - Leander Poocza
- Bioforge Lab, CIBER-BBN, University of Valladolid, Paseo Belén 19, 47011, Valladolid, Spain
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9
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Hunold J, Eisermann J, Brehm M, Hinderberger D. Characterization of Aqueous Lower-Polarity Solvation Shells Around Amphiphilic 2,2,6,6-Tetramethylpiperidine-1-oxyl Radicals in Water. J Phys Chem B 2020; 124:8601-8609. [DOI: 10.1021/acs.jpcb.0c04863] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Johannes Hunold
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Jana Eisermann
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Martin Brehm
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Dariush Hinderberger
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
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10
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Weber EMM, Kress T, Abergel D, Sewsurn S, Azaïs T, Kurzbach D. Assessing the Onset of Calcium Phosphate Nucleation by Hyperpolarized Real-Time NMR. Anal Chem 2020; 92:7666-7673. [PMID: 32378878 PMCID: PMC7271075 DOI: 10.1021/acs.analchem.0c00516] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
![]()
We
report an experimental approach for high-resolution real-time
monitoring of transiently formed species occurring during the onset
of precipitation of ionic solids from solution. This is made possible
by real-time nuclear magnetic resonance (NMR) monitoring using dissolution
dynamic nuclear polarization (D-DNP) to amplify signals of functional
intermediates and is supported by turbidimetry, cryogenic electron
microscopy, and solid-state NMR measurements. D-DNP can provide drastic
signal improvements in NMR signal amplitudes, permitting dramatic
reductions in acquisition times and thereby enabling us to probe fast
interaction kinetics such as those underlying formation of prenucleation
species (PNS) that precede solid–liquid phase separation. This
experimental strategy allows for investigation of the formation of
calcium phosphate (CaP)-based minerals by 31P NMR—a
process of substantial industrial, geological, and biological interest.
Thus far, many aspects of the mechanisms of CaP nucleation remain
unclear due to the absence of experimental methods capable of accessing
such processes on sufficiently short time scales. The approach reported
here aims to address this by an improved characterization of the initial
steps of CaP precipitation, permitting detection of PNS by NMR and
determination of their formation rates, exchange dynamics, and sizes.
Using D-DNP monitoring, we find that under our conditions (i) in the
first 2 s after preparation of oversaturated calcium phosphate solutions,
PNS with a hydrodynamic radius of Rh ≈
1 nm is formed and (ii) following this rapid initial formation, the
entire crystallization processes proceed on considerably longer time
scales, requiring >20 s to form the final crystal phase.
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Affiliation(s)
- Emmanuelle M M Weber
- Radiological Sciences Laboratory, Department of Radiology, Stanford University, Richard M. Lucas Center for Imaging, 201 Welch Road, Stanford, California 94305, United States
| | - Thomas Kress
- Faculty of Chemistry, Institute of Biological Chemistry, University Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Daniel Abergel
- Laboratoire des biomolécules (LBM), Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 24 rue Lhomond, 75005 Paris, France
| | - Steffi Sewsurn
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensèe de Paris (LCMCP), 4, place Jussieu, F-75005 Paris, France
| | - Thierry Azaïs
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensèe de Paris (LCMCP), 4, place Jussieu, F-75005 Paris, France
| | - Dennis Kurzbach
- Faculty of Chemistry, Institute of Biological Chemistry, University Vienna, Währinger Strasse 38, 1090 Vienna, Austria
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11
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Roberts EG, Rim NG, Huang W, Tarakanova A, Yeo J, Buehler MJ, Kaplan DL, Wong JY. Fabrication and Characterization of Recombinant Silk-Elastin-Like-Protein (SELP) Fiber. Macromol Biosci 2018; 18:e1800265. [PMID: 30417967 PMCID: PMC6960454 DOI: 10.1002/mabi.201800265] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 09/28/2018] [Indexed: 11/06/2022]
Abstract
Silk-elastin-like-protein polymers (SELPs) are genetically engineered recombinant protein sequences consisting of repeating units of silk-like and elastin-like blocks. By combining these entities, it is shown that both the characteristic strength of silk and the temperature-dependent responsiveness of elastin can be leveraged to create an enhanced stimuli-responsive material. It is hypothesized that SELP behavior can be influenced by varying the silk-to-elastin ratio. If the responsiveness of the material at different ratios is significantly different, this would allow for the design of materials with specific temperature-based swelling and mechanical properties. This study demonstrates that SELP fiber properties can be controlled via a temperature transition dependent on the ratio of silk-to-elastin in the material. SELP fibers are experimentally wet spun from polymers with different ratios of silk-to-elastin and conditioned in either a below or above transition temperature (T t ) water bath prior to characterization. The fibers with higher elastin content showed more stimuli-responsive behavior compared to the fibers with lower elastin content in the hot (57-60 °C) versus cold (4-7 °C) environment, both computationally and experimentally. This work builds a foundation for developing SELP materials with well-characterized mechanical properties and responsive features.
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Affiliation(s)
- Erin G Roberts
- Division of Materials Science and Engineering, Boston University, Boston, MA, 02215, USA
| | - Nae-Gyune Rim
- Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA
| | - Wenwen Huang
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
| | - Anna Tarakanova
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Jingjie Yeo
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute of High Performance Computing, A∗STAR, 1 Fusionopolis Way, Singapore, 138632, Singapore
| | - Markus J Buehler
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
| | - Joyce Y Wong
- Division of Materials Science and Engineering, Boston University, Boston, MA, 02215, USA
- Department of Biomedical Engineering, Boston University, Boston, MA, 02215, USA
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12
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Smith IR, Charlier AHR, Pritzlaff AM, Shishlov A, Barnes B, Bentz KC, Easterling CP, Sumerlin BS, Fanucci GE, Savin DA. Probing Membrane Hydration at the Interface of Self-Assembled Peptide Amphiphiles Using Electron Paramagnetic Resonance. ACS Macro Lett 2018; 7:1261-1266. [PMID: 35651263 DOI: 10.1021/acsmacrolett.8b00728] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The relative hydrophilicity at the interface of a nanoparticle was measured utilizing electron paramagnetic resonance (EPR) spectroscopy. The supramolecular structure was assembled from spin-labeled peptide amphiphiles (PA) derived from N-carboxy anhydrides (NCA). Cyanuric chloride, or 2,4,6-trichloro-1,3,5-triazine (TCT), was used as a modular platform to synthesize the spin-labeled, lipid-mimetic macroinitiator used for the ring-opening polymerization of γ-benzyl-l-glutamic acid NCA to produce polyglutamate-b-dodecanethiol2. Through static and dynamic light scattering, as well as transmission electron microscopy, PAs with DP of 50 and 17 were shown to assemble into stable nanoparticles with an average hydrodynamic radius of 117 and 84 nm, respectively. Continuous wave EPR spectroscopy revealed that the mobility parameter (h-1/h0) and 2Aiso of the nitroxide radical increased with increasing pH, in concert with the deprotonation of the PE side chains and associated helix-coil transition. These results are consistent with an increase in the relative hydration and polarity at the nanoparticle interface, which would be dependent on the secondary structure of the polypeptide. This research suggests that a pH stimulus could be used to facilitate water diffusion through the membrane.
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Affiliation(s)
- Ian R. Smith
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Alban H. R. Charlier
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Amanda M. Pritzlaff
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Alexander Shishlov
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Brooke Barnes
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Kyle C. Bentz
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Charles P. Easterling
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Gail E. Fanucci
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Daniel A. Savin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
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13
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Blaffert J, Haeri HH, Blech M, Hinderberger D, Garidel P. Spectroscopic methods for assessing the molecular origins of macroscopic solution properties of highly concentrated liquid protein solutions. Anal Biochem 2018; 561-562:70-88. [PMID: 30243977 DOI: 10.1016/j.ab.2018.09.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 09/08/2018] [Accepted: 09/17/2018] [Indexed: 01/14/2023]
Abstract
In cases of subcutaneous injection of therapeutic monoclonal antibodies, high protein concentrations (>50 mg/ml) are often required. During the development of these high concentration liquid formulations (HCLF), challenges such as aggregation, gelation, opalescence, phase separation, and high solution viscosities are more prone compared to low concentrated protein formulations. These properties can impair manufacturing processes, as well as protein stability and shelf life. To avoid such unfavourable solution properties, a detailed understanding about the nature of these properties and their driving forces are required. However, the fundamental mechanisms that lead to macroscopic solution properties, as above mentioned, are complex and not fully understood, yet. Established analytical methods for assessing the colloidal stability, i.e. the ability of a native protein to remain dispersed in solution, are restricted to dilute conditions and provide parameters such as the second osmotic virial coefficient, B22, and the diffusion interaction coefficient, kD. These parameters are routinely applied for qualitative estimations and identifications of proteins with challenging solution behaviours, such as high viscosities and aggregation, although the assays are prepared for low protein concentration conditions, typically between 0.1 and 20 mg/ml ("ideal" solution conditions). Quantitative analysis of samples of high protein concentration is difficult and it is hard to obtain information about the driving forces of such solution properties and corresponding protein-protein self-interactions. An advantage of using specific spectroscopic methods is the potential of directly analysing highly concentrated protein solutions at different solution conditions. This allows for collecting/gaining valuable information about the fundamental mechanisms of solution properties of the high protein concentration regime. In addition, the derived parameters might be more predictive as compared to the parameters originating from assays which are optimized for the low protein concentration range. The provided information includes structural data, molecular dynamics at various timescales and protein-solvent interactions, which can be obtained at molecular resolution. Herein, we provide an overview about spectroscopic techniques for analysing the origins of macroscopic solution behaviours in general, with a specific focus on pharmaceutically relevant high protein concentration and formulation conditions.
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Affiliation(s)
- Jacob Blaffert
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120, Halle/Saale, Germany
| | - Haleh Hashemi Haeri
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120, Halle/Saale, Germany
| | - Michaela Blech
- Boehringer Ingelheim Pharma GmbH & Co. KG, Protein Science, Birkerndorfer Str. 65, 88397, Biberach/Riß, Germany
| | - Dariush Hinderberger
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120, Halle/Saale, Germany
| | - Patrick Garidel
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120, Halle/Saale, Germany; Boehringer Ingelheim Pharma GmbH & Co. KG, Protein Science, Birkerndorfer Str. 65, 88397, Biberach/Riß, Germany.
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14
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Kadeřávek P, Ferrage F, Bodenhausen G, Kurzbach D. High-Resolution NMR of Folded Proteins in Hyperpolarized Physiological Solvents. Chemistry 2018; 24:13418-13423. [PMID: 29969165 DOI: 10.1002/chem.201802885] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 06/28/2018] [Indexed: 11/10/2022]
Abstract
Hyperpolarized 2D exchange spectroscopy (HYPEX) to obtain high-resolution nuclear magnetic resonance (NMR) spectra of folded proteins under near-physiological conditions is reported. The technique is based on hyperpolarized water, which is prepared by dissolution dynamic nuclear polarization and mixed in situ in an NMR spectrometer with a protein in a physiological saline buffer at body temperature. Rapid exchange of labile protons with the hyperpolarized solvent, combined with cross-relaxation effects (NOEs), leads to boosted signal intensities for many amide 1 H-15 N correlations in the protein ubiquitin. As the introduction of hyperpolarization to the target protein is mediated via the solvent, the method is applicable to a broad spectrum of target molecules.
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Affiliation(s)
- Pavel Kadeřávek
- CEITEC-Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Fabien Ferrage
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005, Paris, France
| | - Geoffrey Bodenhausen
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005, Paris, France
| | - Dennis Kurzbach
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005, Paris, France
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15
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Arabi SH, Aghelnejad B, Schwieger C, Meister A, Kerth A, Hinderberger D. Serum albumin hydrogels in broad pH and temperature ranges: characterization of their self-assembled structures and nanoscopic and macroscopic properties. Biomater Sci 2018; 6:478-492. [PMID: 29446432 DOI: 10.1039/c7bm00820a] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
We report extended pH- and temperature-induced preparation procedures and explore the materials and molecular properties of different types of hydrogels made from human and bovine serum albumin, the major transport protein in the blood of mammals. We describe the diverse range of properties of these hydrogels at three levels: (1) their viscoelastic (macroscopic) behavior, (2) protein secondary structure changes during the gelation process (via ATR-FTIR spectroscopy), and (3) the hydrogel fatty acid (FA) binding capacity and derive from this the generalized tertiary structure through CW EPR spectroscopy. We describe the possibility of preparing hydrogels from serum albumin under mild conditions such as low temperatures (notably below albumin's denaturation temperature) and neutral pH value. As such, the proteins retain most of their native secondary structure. We find that all the combined data indicate a two-stage gelation process that is studied in detail. We summarize these findings and the explored dependences of the gels on pH, temperature, concentration, and incubation time by proposing phase diagrams for both HSA and BSA gel-states. As such, it has become possible to prepare gels that have the desired nanoscopic and macroscopic properties, which can, in future, be tested for, e.g., drug delivery applications.
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Affiliation(s)
- S Hamidreza Arabi
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle, Saale, Germany.
| | - Behdad Aghelnejad
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle, Saale, Germany.
| | - Christian Schwieger
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle, Saale, Germany.
| | - Annette Meister
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle, Saale, Germany.
| | - Andreas Kerth
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle, Saale, Germany.
| | - Dariush Hinderberger
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle, Saale, Germany.
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16
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Abstract
Nanomedicine is a discipline that applies nanoscience and nanotechnology principles to the prevention, diagnosis, and treatment of human diseases. Self-assembly of molecular components is becoming a common strategy in the design and syntheses of nanomaterials for biomedical applications. In both natural and synthetic self-assembled nanostructures, molecular cooperativity is emerging as an important hallmark. In many cases, interplay of many types of noncovalent interactions leads to dynamic nanosystems with emergent properties where the whole is bigger than the sum of the parts. In this review, we provide a comprehensive analysis of the cooperativity principles in multiple self-assembled nanostructures. We discuss the molecular origin and quantitative modeling of cooperative behaviors. In selected systems, we describe the examples on how to leverage molecular cooperativity to design nanomedicine with improved diagnostic precision and therapeutic efficacy in medicine.
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Affiliation(s)
- Yang Li
- Department of Pharmacology, Simmons Comprehensive Cancer Center , UT Southwestern Medical Center , 5323 Harry Hines Boulevard , Dallas , Texas 75390 , United States
| | - Yiguang Wang
- Department of Pharmacology, Simmons Comprehensive Cancer Center , UT Southwestern Medical Center , 5323 Harry Hines Boulevard , Dallas , Texas 75390 , United States.,Beijing Key Laboratory of Molecular Pharmaceutics and State Key Laboratory of Natural and Biomimetic Drugs , Peking University , Beijing , 100191 , China
| | - Gang Huang
- Department of Pharmacology, Simmons Comprehensive Cancer Center , UT Southwestern Medical Center , 5323 Harry Hines Boulevard , Dallas , Texas 75390 , United States
| | - Jinming Gao
- Department of Pharmacology, Simmons Comprehensive Cancer Center , UT Southwestern Medical Center , 5323 Harry Hines Boulevard , Dallas , Texas 75390 , United States
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17
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Weber EMM, Sicoli G, Vezin H, Frébourg G, Abergel D, Bodenhausen G, Kurzbach D. Reifung von Proben beeinflusst die Effizienz der Kernpolarisation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800493] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Emmanuelle M. M. Weber
- Laboratoire des biomolécules, LBM; Département de chimie; École normale supérieure; PSL University; Sorbonne Université, CNRS; 75005 Paris Frankreich
| | - Giuseppe Sicoli
- Université Lille, UMR CNRS 8516 - LASIR; Laboratoire de Spectrochimie Infrarouge et Raman; 59000 Lille Frankreich
| | - Hervé Vezin
- Université Lille, UMR CNRS 8516 - LASIR; Laboratoire de Spectrochimie Infrarouge et Raman; 59000 Lille Frankreich
| | - Ghislaine Frébourg
- Institut de Biologie Paris-Seine; Sorbonne Université/CNRS; Campus Pierre et Marie Curie, 7-9 quai St Bernard 75252 Paris Frankreich
| | - Daniel Abergel
- Laboratoire des biomolécules, LBM; Département de chimie; École normale supérieure; PSL University; Sorbonne Université, CNRS; 75005 Paris Frankreich
| | - Geoffrey Bodenhausen
- Laboratoire des biomolécules, LBM; Département de chimie; École normale supérieure; PSL University; Sorbonne Université, CNRS; 75005 Paris Frankreich
| | - Dennis Kurzbach
- Laboratoire des biomolécules, LBM; Département de chimie; École normale supérieure; PSL University; Sorbonne Université, CNRS; 75005 Paris Frankreich
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18
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Weber EMM, Sicoli G, Vezin H, Frébourg G, Abergel D, Bodenhausen G, Kurzbach D. Sample Ripening through Nanophase Separation Influences the Performance of Dynamic Nuclear Polarization. Angew Chem Int Ed Engl 2018; 57:5171-5175. [PMID: 29431894 DOI: 10.1002/anie.201800493] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Indexed: 11/07/2022]
Abstract
Mixtures of water and glycerol provide popular matrices for low-temperature spectroscopy of vitrified samples. However, they involve counterintuitive physicochemical properties, such as spontaneous nanoscopic phase separations (NPS) in solutions that appear macroscopically homogeneous. We demonstrate that such phenomena can substantially influence the efficiency of dynamic nuclear polarization (DNP) by factors up to 20 % by causing fluctuations in local concentrations of polarization agents (radicals). Thus, a spontaneous NPS of water/glycerol mixtures that takes place on time scales on the order of 30-60 min results in a confinement of polarization agents in nanoscopic water-rich vesicles, which in return affects the DNP. Such effects were found for three common polarization agents, TEMPOL, AMUPol and Trityl.
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Affiliation(s)
- Emmanuelle M M Weber
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005, Paris, France
| | - Giuseppe Sicoli
- Université Lille, UMR CNRS 8516-LASIR, Laboratoire de Spectrochimie Infrarouge et Raman, 59000, Lille, France
| | - Hervé Vezin
- Université Lille, UMR CNRS 8516-LASIR, Laboratoire de Spectrochimie Infrarouge et Raman, 59000, Lille, France
| | - Ghislaine Frébourg
- Institut de Biologie Paris-Seine, Sorbonne Université/ CNRS, Campus Pierre et Marie Curie, 7-9 quai St Bernard, 75252, Paris, France
| | - Daniel Abergel
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005, Paris, France
| | - Geoffrey Bodenhausen
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005, Paris, France
| | - Dennis Kurzbach
- Laboratoire des biomolécules, LBM, Département de chimie, École normale supérieure, PSL University, Sorbonne Université, CNRS, 75005, Paris, France
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19
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Tarakanova A, Huang W, Weiss AS, Kaplan DL, Buehler MJ. Computational smart polymer design based on elastin protein mutability. Biomaterials 2017; 127:49-60. [DOI: 10.1016/j.biomaterials.2017.01.041] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 01/13/2017] [Accepted: 01/28/2017] [Indexed: 12/16/2022]
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20
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Tarakanova A, Huang W, Weiss AS, Kaplan DL, Buehler MJ. Computational smart polymer design based on elastin protein mutability. Biomaterials 2017. [PMID: 28279921 DOI: 10.1016/i.biomaterials.2017.01.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
Soluble elastin-like peptides (ELPs) can be engineered into a range of physical forms, from hydrogels and scaffolds to fibers and artificial tissues, finding numerous applications in medicine and engineering as "smart polymers". Elastin-like peptides are attractive candidates as a platform for novel biomaterial design because they exhibit a highly tunable response spectrum, with reversible phase transition capabilities. Here, we report the design of the first virtual library of elastin-like protein models using methods for enhanced sampling to study the effect of peptide chemistry, chain length, and salt concentration on the structural transitions of ELPs, exposing associated molecular mechanisms. We describe the behavior of the local molecular structure under increasing temperatures and the effect of peptide interactions with nearest hydration shell water molecules on peptide mobility and propensity to exhibit structural transitions. Shifts in the magnitude of structural transitions at the single-molecule scale are explained from the perspective of peptide-ion-water interactions in a library of four unique elastin-like peptide systems. Predictions of structural transitions are subsequently validated in experiment. This library is a valuable resource for recombinant protein design and synthesis as it elucidates mechanisms at the single-molecule level, paving a feedback path between simulation and experiment for smart material designs, with applications in biomedicine and diagnostic devices.
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Affiliation(s)
- Anna Tarakanova
- Laboratory for Atomistic and Molecular Mechanics, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Wenwen Huang
- Department of Biomedical Engineering, Tufts University, Medford, MA, USA
| | - Anthony S Weiss
- School of Life and Environmental Sciences and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA, USA
| | - Markus J Buehler
- Laboratory for Atomistic and Molecular Mechanics, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
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21
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Widder K, MacEwan SR, Garanger E, Núñez V, Lecommandoux S, Chilkoti A, Hinderberger D. Characterisation of hydration and nanophase separation during the temperature response in hydrophobic/hydrophilic elastin-like polypeptide (ELP) diblock copolymers. SOFT MATTER 2017; 13:1816-1822. [PMID: 28169384 DOI: 10.1039/c6sm02427k] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To understand the complex nanoscale dehydration process during the lower critical solution temperature (LCST) based inverse phase transition of a class of thermoresponsive biopolymers, diblock elastin-like polypeptides (ELPs) were investigated by spin probing continuous wave electron paramagnetic resonance (CW EPR) spectroscopy. The diblock copolymers composed of a hydrophobic block and a hydrophilic block showed different mechanisms of a temperature-driven phase transition. While the phase transition temperature is a function of the hydrophobic mass fraction of the diblock ELPs, the hydrophilic block length determines the molecular structure of the polymer aggregates formed above the transition temperature. When the weight ratio of hydrophilic block length to hydrophobic block length is greater than or equal to 0.3, the polymer aggregates consist of a hydrophobic core and a hydrophilic corona. The interface of these two regions become permeable at temperatures above the transition temperature. In case of smaller ratios, the aggregating hydrophobic parts of the polymer enclose the hydrated hydrophilic blocks, that are too small to form a hydrophilic corona, leading to bigger and less dense aggregates of higher polarity.
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Affiliation(s)
- Katharina Widder
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany.
| | - Sarah R MacEwan
- Department of Biomedical Engineering, Duke University, 136 Hudson Hall, Campus Box 90281, Durham, North Carolina 27708, USA
| | - Elisabeth Garanger
- Laboratoire de Chimie des Polymères Organiques, CNRS UMR 5629, Université de Bordeaux, Bordeaux-INP, Pessac 33607 Cedex, France
| | - Vanesa Núñez
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany.
| | - Sébastien Lecommandoux
- Laboratoire de Chimie des Polymères Organiques, CNRS UMR 5629, Université de Bordeaux, Bordeaux-INP, Pessac 33607 Cedex, France
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, 136 Hudson Hall, Campus Box 90281, Durham, North Carolina 27708, USA
| | - Dariush Hinderberger
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany.
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22
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Creating cellular patterns using genetically engineered, gold- and cell-binding polypeptides. Biointerphases 2016; 11:021009. [PMID: 27233531 DOI: 10.1116/1.4952452] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Patterning cells on material surfaces is an important tool for the study of fundamental cell biology, tissue engineering, and cell-based bioassays. Here, the authors report a simple approach to pattern cells on gold patterned silicon substrates with high precision, fidelity, and stability. Cell patterning is achieved by exploiting adsorbed biopolymer orientation to either enhance (gold regions) or impede (silicon oxide regions) cell adhesion at particular locations on the patterned surface. Genetic incorporation of gold binding domains enables C-terminal chemisorption of polypeptides onto gold regions with enhanced accessibility of N-terminal cell binding domains. In contrast, the orientation of polypeptides adsorbed on the silicon oxide regions limit the accessibility of the cell binding domains. The dissimilar accessibility of cell binding domains on the gold and silicon oxide regions directs the cell adhesion in a spatially controlled manner in serum-free medium, leading to the formation of well-defined cellular patterns. The cells are confined within the polypeptide-modified gold regions and are viable for eight weeks, suggesting that bioactive polypeptide modified surfaces are suitable for long-term maintenance of patterned cells. This study demonstrates an innovative surface-engineering approach for cell patterning by exploiting distinct ligand accessibility on heterogeneous surfaces.
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23
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Reichenwallner J, Thomas A, Nuhn L, Johann T, Meister A, Frey H, Hinderberger D. Tunable dynamic hydrophobic attachment of guest molecules in amphiphilic core–shell polymers. Polym Chem 2016. [DOI: 10.1039/c6py01335j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
In this study, synthesis and dynamic properties of amphiphilic core–shell polymers are reported as monitored through their interaction with small amphiphilic ligands. Our findings point to a most complex self-assembling nature of those host and guest molecules.
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Affiliation(s)
- Jörg Reichenwallner
- Institute of Chemistry
- Martin-Luther-Universität Halle-Wittenberg
- 06120 Halle
- Germany
| | - Anja Thomas
- Institute of Organic Chemistry
- Johannes Gutenberg-University
- 55128 Mainz
- Germany
| | - Lutz Nuhn
- Institute of Organic Chemistry
- Johannes Gutenberg-University
- 55128 Mainz
- Germany
- Department of Pharmaceutics
| | - Tobias Johann
- Institute of Organic Chemistry
- Johannes Gutenberg-University
- 55128 Mainz
- Germany
| | - Annette Meister
- Institute of Chemistry
- Martin-Luther-Universität Halle-Wittenberg
- 06120 Halle
- Germany
- Institute of Biochemistry and Biotechnology
| | - Holger Frey
- Institute of Organic Chemistry
- Johannes Gutenberg-University
- 55128 Mainz
- Germany
| | - Dariush Hinderberger
- Institute of Chemistry
- Martin-Luther-Universität Halle-Wittenberg
- 06120 Halle
- Germany
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24
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Qian ZG, Zhou ML, Song WW, Xia XX. Dual Thermosensitive Hydrogels Assembled from the Conserved C-Terminal Domain of Spider Dragline Silk. Biomacromolecules 2015; 16:3704-11. [DOI: 10.1021/acs.biomac.5b01231] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhi-Gang Qian
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Ming-Liang Zhou
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Wen-Wen Song
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Xiao-Xia Xia
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
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25
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Garanger E, MacEwan SR, Sandre O, Brûlet A, Bataille L, Chilkoti A, Lecommandoux S. Structural Evolution of a Stimulus-Responsive Diblock Polypeptide Micelle by Temperature Tunable Compaction of its Core. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01371] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Elisabeth Garanger
- Laboratoire
de Chimie des Polymères Organiques (LCPO), CNRS UMR 5629, Université de Bordeaux, Bordeaux-INP, Pessac 33607 Cedex, France
- Institut Européen de Chimie et Biologie (IECB), Pessac 33607, France
| | - Sarah R. MacEwan
- Department
of Biomedical Engineering, Duke University, Campus Box 90281, Durham, North Carolina 27708, United States
| | - Olivier Sandre
- Laboratoire
de Chimie des Polymères Organiques (LCPO), CNRS UMR 5629, Université de Bordeaux, Bordeaux-INP, Pessac 33607 Cedex, France
| | - Annie Brûlet
- Laboratoire
Léon Brillouin (LLB), CEA-CNRS UMR 12, CEA-Saclay, Gif-sur-Yvette 91191, France
| | - Laure Bataille
- Laboratoire
de Chimie des Polymères Organiques (LCPO), CNRS UMR 5629, Université de Bordeaux, Bordeaux-INP, Pessac 33607 Cedex, France
- Institut Européen de Chimie et Biologie (IECB), Pessac 33607, France
| | - Ashutosh Chilkoti
- Department
of Biomedical Engineering, Duke University, Campus Box 90281, Durham, North Carolina 27708, United States
| | - Sébastien Lecommandoux
- Laboratoire
de Chimie des Polymères Organiques (LCPO), CNRS UMR 5629, Université de Bordeaux, Bordeaux-INP, Pessac 33607 Cedex, France
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26
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Ryu J, Jung SH, Sim JH, Lee HI, Sohn D. Clustering and Dissolution of Triazole Branched Poly(ethyl methylacrylate). MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201400621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jungju Ryu
- Department of Chemistry and Research; Institute for Natural Sciences; Hanyang University; Seoul 133-791 South Korea
| | - Seo-Hyun Jung
- Research Center for Green Fine Chemicals; Korea Research Institute of Chemical Technology; Ulsan 681-802 South Korea
| | - Jae Hyun Sim
- Department of Applied Chemistry; Kyushu University; Fukuoka 819-0395 Japan
| | - Hyung-il Lee
- Department of Chemistry; University of Ulsan; Ulsan 680-749 South Korea
| | - Daewon Sohn
- Department of Chemistry and Research; Institute for Natural Sciences; Hanyang University; Seoul 133-791 South Korea
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27
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Stangenberg R, Wu Y, Hedrich J, Kurzbach D, Wehner D, Weidinger G, Kuan SL, Jansen MI, Jelezko F, Luhmann HJ, Hinderberger D, Weil T, Müllen K. A polyphenylene dendrimer drug transporter with precisely positioned amphiphilic surface patches. Adv Healthc Mater 2015; 4:377-84. [PMID: 25182694 DOI: 10.1002/adhm.201400291] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 07/19/2014] [Indexed: 01/14/2023]
Abstract
The design and synthesis of a polyphenylene dendrimer (PPD 3) with discrete binding sites for lipophilic guest molecules and characteristic surface patterns is presented. Its semi-rigidity in combination with a precise positioning of hydrophilic and hydrophobic groups at the periphery yields a refined architecture with lipophilic binding pockets that accommodate defined numbers of biologically relevant guest molecules such as fatty acids or the drug doxorubicin. The size, architecture, and surface textures allow to even penetrate brain endothelial cells that are a major component of the extremely tight blood-brain barrier. In addition, low to no toxicity is observed in in vivo studies using zebrafish embryos. The unique PPD scaffold allows the precise placement of functional groups in a given environment and offers a universal platform for designing drug transporters that closely mimic many features of proteins.
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Affiliation(s)
- René Stangenberg
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Yuzhou Wu
- Institute of Organic Chemistry III; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Jana Hedrich
- Institute for Physiology; Johannes Gutenberg University Mainz; Duesbergweg 6 55128 Mainz Germany
| | - Dennis Kurzbach
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Daniel Wehner
- Institute for Biochemistry and Molecular Biology; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Gilbert Weidinger
- Institute for Biochemistry and Molecular Biology; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Seah Ling Kuan
- Institute of Organic Chemistry III; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Malin Insa Jansen
- Institute for Physiology; Johannes Gutenberg University Mainz; Duesbergweg 6 55128 Mainz Germany
| | - Fedor Jelezko
- Institute for Quantum Optics; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Heiko J. Luhmann
- Institute for Physiology; Johannes Gutenberg University Mainz; Duesbergweg 6 55128 Mainz Germany
| | - Dariush Hinderberger
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
- Institute of Chemistry; Martin-Luther-Universität; Halle-Wittenberg Von-Danckelmann-Platz 4 06120 Halle (Saale) Germany
| | - Tanja Weil
- Institute of Organic Chemistry III; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
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Wang W, Jashnani A, Aluri SR, Gustafson JA, Hsueh PY, Yarber F, McKown RL, Laurie GW, Hamm-Alvarez SF, MacKay JA. A thermo-responsive protein treatment for dry eyes. J Control Release 2014; 199:156-67. [PMID: 25481446 DOI: 10.1016/j.jconrel.2014.11.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Revised: 10/30/2014] [Accepted: 11/17/2014] [Indexed: 11/27/2022]
Abstract
Millions of Americans suffer from dry eye disease, and there are few effective therapies capable of treating these patients. A decade ago, an abundant protein component of human tears was discovered and named lacritin (Lacrt). Lacrt has prosecretory activity in the lacrimal gland and mitogenic activity at the corneal epithelium. Similar to other proteins placed on the ocular surface, the durability of its effect is limited by rapid tear turnover. Motivated by the rationale that a thermo-responsive coacervate containing Lacrt would have better retention upon administration, we have constructed and tested the activity of a thermo-responsive Lacrt fused to an elastin-like polypeptide (ELP). Inspired from the human tropoelastin protein, ELP protein polymers reversibly phase separate into viscous coacervates above a tunable transition temperature. This fusion construct exhibited the prosecretory function of native Lacrt as illustrated by its ability to stimulate β-hexosaminidase secretion from primary rabbit lacrimal gland acinar cells. It also increased tear secretion from non-obese diabetic (NOD) mice, a model of autoimmune dacryoadenitis, when administered via intra-lacrimal injection. Lacrt ELP fusion proteins undergo temperature-mediated assembly to form a depot inside the lacrimal gland. We propose that these Lacrt ELP fusion proteins represent a potential therapy for dry eye disease and the strategy of ELP-mediated phase separation may have applicability to other diseases of the ocular surface.
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Affiliation(s)
- Wan Wang
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States
| | - Aarti Jashnani
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States
| | - Suhaas R Aluri
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States
| | - Joshua A Gustafson
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States
| | - Pang-Yu Hsueh
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States
| | - Frances Yarber
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States
| | - Robert L McKown
- Department of Integrated Science and Technology, James Madison University, Harrisonburg, VA, United States
| | - Gordon W Laurie
- Department of Cell Biology, School of Medicine of the University of Virginia, Charlottesville, VA, United States
| | - Sarah F Hamm-Alvarez
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States; Department of Physiology and Biophysics, Keck School of Medicine of the University of Southern California, Los Angeles, CA, United States
| | - J Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States; Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, United States.
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29
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Ye Y, Shangguan Y, Song Y, Zheng Q. Influence of charge density on rheological properties and dehydration dynamics of weakly charged poly(N-isopropylacrylamide) during phase transition. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.03.057] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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30
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Kurzbach D, Schwarz TC, Platzer G, Höfler S, Hinderberger D, Konrat R. Kompensatorische Anpassungen der strukturellen Dynamik eines intrinsisch unstrukturierten Protein-Komplexes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201308389] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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31
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Kurzbach D, Schwarz TC, Platzer G, Höfler S, Hinderberger D, Konrat R. Compensatory adaptations of structural dynamics in an intrinsically disordered protein complex. Angew Chem Int Ed Engl 2014; 53:3840-3. [PMID: 24604825 DOI: 10.1002/anie.201308389] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 11/11/2013] [Indexed: 01/08/2023]
Abstract
Intrinsically disordered proteins (IDPs) play crucial roles in protein interaction networks and in this context frequently constitute important hubs and interfaces. Here we show by a combination of NMR and EPR spectroscopy that the binding of the cytokine osteopontin (OPN) to its natural ligand, heparin, is accompanied by thermodynamically compensating structural adaptations. The core segment of OPN expands upon binding. This "unfolding-upon-binding" is governed primarily through electrostatic interactions between heparin and charged patches along the protein backbone and compensates for entropic penalties due to heparin-OPN binding. It is shown how structural unfolding compensates for entropic losses through ligand binding in IDPs and elucidates the interplay between structure and thermodynamics of rapid substrate-binding and -release events in IDP interaction networks.
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Affiliation(s)
- Dennis Kurzbach
- Department of Structural and Computational Biology, Max F. Perutz Laboratories, Vienna Biocenter Campus 5, 1030 Vienna (Austria)
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32
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Spiess HW. Probing Macromolecular and Supramolecular Structure, Dynamics, and Function by Magnetic Resonance. HIERARCHICAL MACROMOLECULAR STRUCTURES: 60 YEARS AFTER THE STAUDINGER NOBEL PRIZE I 2013. [DOI: 10.1007/12_2013_255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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