1
|
Zhao C, Huang W, Su J, Zhang X, Xue J, Zhang C, Han J, Zhou Y, Wang Y. Purification and characterization of recombinant human superoxide dismutase integrated with resilin-like polypeptide. Protein Expr Purif 2024; 222:106535. [PMID: 38901714 DOI: 10.1016/j.pep.2024.106535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 06/10/2024] [Accepted: 06/18/2024] [Indexed: 06/22/2024]
Abstract
Human superoxide dismutase (hSOD1) plays an important role in the aerobic metabolism and free radical eliminating process in the body. However, the production of existing SOD faces problems such as complex purification methods, high costs, and poor product stability. This experiment achieved low-cost, rapid, and simple purification of hSOD1 through ammonium sulfate precipitation method and heat resistance of recombinant protein. We constructed a recombinant protein hSOD1-LR containing a resilin-like polypeptide tag and expressed it. The interest protein was purified by ammonium sulfate precipitation method, and the results showed that the purification effect of 1.5 M (NH4)2SO4 was the best, with an enzyme activity recovery rate of 80 % after purification. Then, based on its thermal stability, further purification of the interest protein at 60 °C revealed a purification fold of up to 24 folds, and the purification effect was similar to that of hSOD1-6xHis purified by nickel column affinity chromatography. The stability of hSOD1-LR showed that the recombinant protein hSOD1-LR has better stability than hSOD-6xHis. hSOD1-LR can maintain 76.57 % activity even after 150 min of reaction at 70 °C. At same time, hSOD1-LR had activity close to 80 % at pH < 5, indicating good acid resistance. In addition, after 28 days of storage at 4 °C and 40 °C, hSOD1-LR retained 92 % and 87 % activity, respectively. Therefore, the method of purifying hSOD1-LR through salt precipitation may have positive implications for the study of SOD purification.
Collapse
Affiliation(s)
- Chengli Zhao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Wenrui Huang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Jiayi Su
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xinshuang Zhang
- School of Life Sciences, Jiangsu University, Zhenjiang, 212013, China
| | - Jingli Xue
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Cailiang Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Juan Han
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Yang Zhou
- School of Life Sciences, Jiangsu University, Zhenjiang, 212013, China
| | - Yun Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, China.
| |
Collapse
|
2
|
Giraldo-Castaño MC, Littlejohn KA, Avecilla ARC, Barrera-Villamizar N, Quiroz FG. Programmability and biomedical utility of intrinsically-disordered protein polymers. Adv Drug Deliv Rev 2024; 212:115418. [PMID: 39094909 DOI: 10.1016/j.addr.2024.115418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 07/03/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024]
Abstract
Intrinsically disordered proteins (IDPs) exhibit molecular-level conformational dynamics that are functionally harnessed across a wide range of fascinating biological phenomena. The low sequence complexity of IDPs has led to the design and development of intrinsically-disordered protein polymers (IDPPs), a class of engineered repeat IDPs with stimuli-responsive properties. The perfect repetitive architecture of IDPPs allows for repeat-level encoding of tunable protein functionality. Designer IDPPs can be modeled on endogenous IDPs or engineered de novo as protein polymers with dual biophysical and biological functionality. Their properties can be rationally tailored to access enigmatic IDP biology and to create programmable smart biomaterials. With the goal of inspiring the bioengineering of multifunctional IDP-based materials, here we synthesize recent multidisciplinary progress in programming and exploiting the bio-functionality of IDPPs and IDPP-containing proteins. Collectively, expanding beyond the traditional sequence space of extracellular IDPs, emergent sequence-level control of IDPP functionality is fueling the bioengineering of self-assembling biomaterials, advanced drug delivery systems, tissue scaffolds, and biomolecular condensates -genetically encoded organelle-like structures. Looking forward, we emphasize open challenges and emerging opportunities, arguing that the intracellular behaviors of IDPPs represent a rich space for biomedical discovery and innovation. Combined with the intense focus on IDP biology, the growing landscape of IDPPs and their biomedical applications set the stage for the accelerated engineering of high-value biotechnologies and biomaterials.
Collapse
Affiliation(s)
- Maria Camila Giraldo-Castaño
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Kai A Littlejohn
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Alexa Regina Chua Avecilla
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Natalia Barrera-Villamizar
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Felipe Garcia Quiroz
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA.
| |
Collapse
|
3
|
Rathee P, Edelstein-Pardo N, Koren G, Beck R, Amir RJ. Cascade Mesophase Transitions of Multi-enzyme Responsive Polymeric Formulations. Biomacromolecules 2024; 25:3607-3619. [PMID: 38776179 PMCID: PMC11170936 DOI: 10.1021/acs.biomac.4c00221] [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: 02/17/2024] [Revised: 05/07/2024] [Accepted: 05/07/2024] [Indexed: 05/24/2024]
Abstract
Studying how synthetic polymer assemblies respond to sequential enzymatic stimuli can uncover intricate interactions in biological systems. Using amidase- and esterase-responsive PEG-based diblock (DBA) and triblock amphiphiles (TBAs), we created two distinct formulations: amidase-responsive DBA with esterase-responsive TBA and vice versa. We studied their cascade responses to the two enzymes and the sequence of their introduction. These formulations underwent cascade mesophase transitions upon the addition of the DBA-degrading enzyme, transitioning from (i) coassembled micelles to (ii) triblock-based hydrogel, and ultimately to (iii) dissolved polymers when exposed to the TBA hydrolyzing enzyme. The specific pathway of the two mesophase transitions depended on the compositions of the formulations and the enzyme introduction sequence. The results highlight the potential for designing polymeric formulations with programmable multistep enzymatic responses, mimicking the complex behavior of biological macromolecules.
Collapse
Affiliation(s)
- Parul Rathee
- School
of Chemistry, Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel
- The
Center for Physics and Chemistry of Living Systems, Tel-Aviv University, Tel Aviv 6997801, Israel
- Center
for Nanoscience and Nanotechnology, Tel-Aviv
University, Tel Aviv 6997801, Israel
| | - Nicole Edelstein-Pardo
- School
of Chemistry, Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel
- The
Center for Physics and Chemistry of Living Systems, Tel-Aviv University, Tel Aviv 6997801, Israel
- Center
for Nanoscience and Nanotechnology, Tel-Aviv
University, Tel Aviv 6997801, Israel
| | - Gil Koren
- The
Center for Physics and Chemistry of Living Systems, Tel-Aviv University, Tel Aviv 6997801, Israel
- Center
for Nanoscience and Nanotechnology, Tel-Aviv
University, Tel Aviv 6997801, Israel
- School
of Physics and Astronomy, Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Roy Beck
- The
Center for Physics and Chemistry of Living Systems, Tel-Aviv University, Tel Aviv 6997801, Israel
- Center
for Nanoscience and Nanotechnology, Tel-Aviv
University, Tel Aviv 6997801, Israel
- School
of Physics and Astronomy, Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Roey J. Amir
- School
of Chemistry, Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel
- The
Center for Physics and Chemistry of Living Systems, Tel-Aviv University, Tel Aviv 6997801, Israel
- Center
for Nanoscience and Nanotechnology, Tel-Aviv
University, Tel Aviv 6997801, Israel
- ADAMA
Center for Novel Delivery Systems in Crop Protection, Tel-Aviv University, Tel Aviv 6997801, Israel
| |
Collapse
|
4
|
Patkar SS, Tang Y, Bisram AM, Zhang T, Saven JG, Pochan DJ, Kiick KL. Genetic Fusion of Thermoresponsive Polypeptides with UCST-type Behavior Mediates 1D Assembly of Coiled-Coil Bundlemers. Angew Chem Int Ed Engl 2023; 62:e202301331. [PMID: 36988077 DOI: 10.1002/anie.202301331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/25/2023] [Accepted: 03/28/2023] [Indexed: 03/30/2023]
Abstract
Thermoresponsive resilin-like polypeptides (RLPs) of various lengths were genetically fused to two different computationally designed coiled coil-forming peptides with distinct thermal stability, to develop new strategies to assemble coiled coil peptides via temperature-triggered phase separation of the RLP units. Their successful production in bacterial expression hosts was verified via gel electrophoresis, mass spectrometry, and amino acid analysis. Circular dichroism (CD) spectroscopy, ultraviolet-visible (UV/Vis) turbidimetry, and dynamic light scattering (DLS) measurements confirmed the stability of the coiled coils and showed that the thermosensitive phase behavior of the RLPs was preserved in the genetically fused hybrid polypeptides. Cryogenic-transmission electron microscopy and coarse-grained modeling revealed that functionalizing the coiled coils with thermoresponsive RLPs leads to their thermally triggered noncovalent assembly into nanofibrillar assemblies.
Collapse
Affiliation(s)
- Sai S Patkar
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Yao Tang
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Arriana M Bisram
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Tianren Zhang
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jeffery G Saven
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Darrin J Pochan
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
- Department of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA
| |
Collapse
|
5
|
Miserez A, Yu J, Mohammadi P. Protein-Based Biological Materials: Molecular Design and Artificial Production. Chem Rev 2023; 123:2049-2111. [PMID: 36692900 PMCID: PMC9999432 DOI: 10.1021/acs.chemrev.2c00621] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Polymeric materials produced from fossil fuels have been intimately linked to the development of industrial activities in the 20th century and, consequently, to the transformation of our way of living. While this has brought many benefits, the fabrication and disposal of these materials is bringing enormous sustainable challenges. Thus, materials that are produced in a more sustainable fashion and whose degradation products are harmless to the environment are urgently needed. Natural biopolymers─which can compete with and sometimes surpass the performance of synthetic polymers─provide a great source of inspiration. They are made of natural chemicals, under benign environmental conditions, and their degradation products are harmless. Before these materials can be synthetically replicated, it is essential to elucidate their chemical design and biofabrication. For protein-based materials, this means obtaining the complete sequences of the proteinaceous building blocks, a task that historically took decades of research. Thus, we start this review with a historical perspective on early efforts to obtain the primary sequences of load-bearing proteins, followed by the latest developments in sequencing and proteomic technologies that have greatly accelerated sequencing of extracellular proteins. Next, four main classes of protein materials are presented, namely fibrous materials, bioelastomers exhibiting high reversible deformability, hard bulk materials, and biological adhesives. In each class, we focus on the design at the primary and secondary structure levels and discuss their interplays with the mechanical response. We finally discuss earlier and the latest research to artificially produce protein-based materials using biotechnology and synthetic biology, including current developments by start-up companies to scale-up the production of proteinaceous materials in an economically viable manner.
Collapse
Affiliation(s)
- Ali Miserez
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University (NTU), Singapore637553.,School of Biological Sciences, NTU, Singapore637551
| | - Jing Yu
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University (NTU), Singapore637553.,Institute for Digital Molecular Analytics and Science (IDMxS), NTU, 50 Nanyang Avenue, Singapore637553
| | - Pezhman Mohammadi
- VTT Technical Research Centre of Finland Ltd., Espoo, UusimaaFI-02044, Finland
| |
Collapse
|
6
|
Otis JB, Sharpe S. Sequence Context and Complex Hofmeister Salt Interactions Dictate Phase Separation Propensity of Resilin-like Polypeptides. Biomacromolecules 2022; 23:5225-5238. [PMID: 36378745 DOI: 10.1021/acs.biomac.2c01027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Resilin is an elastic material found in insects with exceptional durability, resilience, and extensibility, making it a promising biomaterial for tissue engineering. The monomeric precursor, pro-resilin, undergoes thermo-responsive self-assembly through liquid-liquid phase separation (LLPS). Understanding the molecular details of this assembly process is critical to developing complex biomaterials. The present study investigates the interplay between the solvent, sequence syntax, structure, and dynamics in promoting LLPS of resilin-like-polypeptides (RLPs) derived from domains 1 and 3 of Drosophila melanogaster pro-resilin. NMR, UV-vis, and microscopy data demonstrate that while kosmotropic salts and low pH promote LLPS, the effects of chaotropic salts with increasing pH are more complex. Subtle variations between the repeating amino acid motifs of resilin domain 1 and domain 3 lead to significantly different salt and pH dependence of LLPS, with domain 3 sequence motifs more strongly favoring phase separation under most conditions. These findings provide new insight into the molecular drivers of RLP phase separation and the complex roles of both RLP sequence and solution composition in fine-tuning assembly conditions.
Collapse
Affiliation(s)
- James Brandt Otis
- Molecular Medicine, Hospital for Sick Children, 686 Bay St, Toronto, ONM5G 0A4, Canada.,Department of Biochemistry, University of Toronto, 1 King's College Circle, Toronto, ONM5S 1A8, Canada
| | - Simon Sharpe
- Molecular Medicine, Hospital for Sick Children, 686 Bay St, Toronto, ONM5G 0A4, Canada.,Department of Biochemistry, University of Toronto, 1 King's College Circle, Toronto, ONM5S 1A8, Canada
| |
Collapse
|
7
|
Dixon AR, Vondra I. Biting Innovations of Mosquito-Based Biomaterials and Medical Devices. MATERIALS 2022; 15:ma15134587. [PMID: 35806714 PMCID: PMC9267633 DOI: 10.3390/ma15134587] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 06/15/2022] [Accepted: 06/17/2022] [Indexed: 02/01/2023]
Abstract
Mosquitoes are commonly viewed as pests and deadly predators by humans. Despite this perception, investigations of their survival-based behaviors, select anatomical features, and biological composition have led to the creation of several beneficial technologies for medical applications. In this review, we briefly explore these mosquito-based innovations by discussing how unique characteristics and behaviors of mosquitoes drive the development of select biomaterials and medical devices. Mosquito-inspired microneedles have been fabricated from a variety of materials, including biocompatible metals and polymers, to mimic of the mouthparts that some mosquitoes use to bite a host with minimal injury during blood collection. The salivary components that these mosquitoes use to reduce the clotting of blood extracted during the biting process provide a rich source of anticoagulants that could potentially be integrated into blood-contacting biomaterials or administered in therapeutics to reduce the risk of thrombosis. Mosquito movement, vision, and olfaction are other behaviors that also have the potential for inspiring the development of medically relevant technologies. For instance, viscoelastic proteins that facilitate mosquito movement are being investigated for use in tissue engineering and drug delivery applications. Even the non-wetting nanostructure of a mosquito eye has inspired the creation of a robust superhydrophobic surface coating that shows promise for biomaterial and drug delivery applications. Additionally, biosensors incorporating mosquito olfactory receptors have been built to detect disease-specific volatile organic compounds. Advanced technologies derived from mosquitoes, and insects in general, form a research area that is ripe for exploration and can uncover potential in further dissecting mosquito features for the continued development of novel medical innovations.
Collapse
Affiliation(s)
- Angela R. Dixon
- Department of Biology, College of Arts and Sciences, Case Western Reserve University, Cleveland, OH 44106, USA
- Department of Biomedical Engineering, School of Engineering and School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
- Correspondence:
| | - Isabelle Vondra
- Biomedical Engineering Program, Northern Illinois University, DeKalb, IL 60115, USA;
| |
Collapse
|
8
|
Pullara P, Alshareedah I, Banerjee PR. Temperature-dependent reentrant phase transition of RNA-polycation mixtures. SOFT MATTER 2022; 18:1342-1349. [PMID: 34984429 PMCID: PMC8854377 DOI: 10.1039/d1sm01557e] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Liquid-liquid phase separation (LLPS) of multivalent biopolymers is a ubiquitous process in biological systems and is of importance in bio-mimetic soft matter design. The phase behavior of biomolecules, such as proteins and nucleic acids, is typically encoded by the primary chain sequence and regulated by solvent properties. One of the most important physical modulators of LLPS is temperature. Solutions of proteins and/or nucleic acids have been shown to undergo liquid-liquid phase separation either upon cooling (with an upper critical solution temperature, UCST) or upon heating (with a lower critical solution temperature, LCST). However, many theoretical frameworks suggest the possibility of more complex temperature-dependent phase behaviors, such as an hourglass or a closed-loop phase diagram with concurrent UCST and LCST transitions. Here, we report that RNA-polyamine mixtures undergo a reentrant phase separation with temperature. Specifically, at low temperatures, RNA-polyamine mixtures form a homogenous phase. Increasing the temperature leads to the formation of RNA-polyamine condensates. A further increase in temperature leads to the dissolution of condensates, rendering a reentrant homogenous phase. This dual-response phase separation of RNA is not unique to polyamines but also observed with short cationic peptides. The immiscibility gap is controlled by the charge of the polycation, salt concentration, and mixture composition. Based on the existing theories of complex coacervation, our results point to a complex interplay between desolvation entropy, ion-pairing, and electrostatic interactions in dictating the closed-loop phase behavior of RNA-polycation mixtures.
Collapse
Affiliation(s)
- Paul Pullara
- Department of Physics, University at Buffalo, Buffalo, NY 14260, USA.
| | | | - Priya R Banerjee
- Department of Physics, University at Buffalo, Buffalo, NY 14260, USA.
| |
Collapse
|
9
|
Chatterjee S, Kan Y, Brzezinski M, Koynov K, Regy RM, Murthy AC, Burke KA, Michels JJ, Mittal J, Fawzi NL, Parekh SH. Reversible Kinetic Trapping of FUS Biomolecular Condensates. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104247. [PMID: 34862761 PMCID: PMC8811844 DOI: 10.1002/advs.202104247] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Indexed: 05/13/2023]
Abstract
Formation of membrane-less organelles by self-assembly of disordered proteins can be triggered by external stimuli such as pH, salt, or temperature. These organelles, called biomolecular condensates, have traditionally been classified as liquids, gels, or solids with limited subclasses. Here, the authors show that a thermal trigger can lead to formation of at least two distinct liquid condensed phases of the fused in sarcoma low complexity (FUS LC) domain. Forming FUS LC condensates directly at low temperature leads to formation of metastable, kinetically trapped condensates that show arrested coalescence, escape from which to untrapped condensates can be achieved via thermal annealing. Using experimental and computational approaches, the authors find that molecular structure of interfacial FUS LC in kinetically trapped condensates is distinct (more β-sheet like) compared to untrapped FUS LC condensates. Moreover, molecular motion within kinetically trapped condensates is substantially slower compared to that in untrapped condensates thereby demonstrating two unique liquid FUS condensates. Controlling condensate thermodynamic state, stability, and structure with a simple thermal switch may contribute to pathological protein aggregate stability and provides a facile method to trigger condensate mixing for biotechnology applications.
Collapse
Affiliation(s)
- Sayantan Chatterjee
- Department of Biomedical EngineeringUniversity of Texas at Austin107 W. Dean Keeton Rd.AustinTX78712USA
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
| | - Yelena Kan
- Department of Biomedical EngineeringUniversity of Texas at Austin107 W. Dean Keeton Rd.AustinTX78712USA
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
- LUT School of Engineering ScienceLUT UniversityYliopistonkatu 34Lappeenranta53850Finland
| | - Mateusz Brzezinski
- Department of Biomedical EngineeringUniversity of Texas at Austin107 W. Dean Keeton Rd.AustinTX78712USA
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
| | - Kaloian Koynov
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
| | - Roshan Mammen Regy
- Artie McFerrin Department of Chemical EngineeringTexas A&M University200 Jack E. Brown Engineering BuildingCollege StationTX77843USA
| | - Anastasia C. Murthy
- Department of Molecular Biology, Cell Biology, and BiochemistryBrown University70 Ship StreetProvidenceRI02912USA
| | - Kathleen A. Burke
- Department of Molecular Biology, Cell Biology, and BiochemistryBrown University70 Ship StreetProvidenceRI02912USA
| | - Jasper J. Michels
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
| | - Jeetain Mittal
- Artie McFerrin Department of Chemical EngineeringTexas A&M University200 Jack E. Brown Engineering BuildingCollege StationTX77843USA
| | - Nicolas L. Fawzi
- Department of Molecular Biology, Cell Biology, and BiochemistryBrown University70 Ship StreetProvidenceRI02912USA
| | - Sapun H. Parekh
- Department of Biomedical EngineeringUniversity of Texas at Austin107 W. Dean Keeton Rd.AustinTX78712USA
- Max Planck Institute for Polymer ResearchAckermannweg 10Mainz55128Germany
| |
Collapse
|
10
|
McKenzie EKG, Kwan GT, Tresguerres M, Matthews PGD. A pH-powered mechanochemical engine regulates the buoyancy of Chaoborus midge larvae. Curr Biol 2022; 32:927-933.e5. [PMID: 35081331 DOI: 10.1016/j.cub.2022.01.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/19/2021] [Accepted: 01/07/2022] [Indexed: 01/08/2023]
Abstract
The freshwater aquatic larvae of the Chaoborus midge are the world's only truly planktonic insects, regulating their buoyancy using two pairs of internal air-filled sacs, one in the thorax and the other in the seventh abdominal segment. In 1911, August Krogh demonstrated the larvae's ability to control their buoyancy by exposing them to an increase in hydrostatic pressure.1 However, how these insects control the volume of their air-sacs has remained a mystery. Gas is not secreted into the air-sacs, as the luminal gas composition is always the same as that dissolved in the surrounding water.1,2 Instead, the air-sac wall was thought to play some role.3-6 Here we reveal that bands of resilin in the air-sac's wall are responsible for the changes in volume. These bands expand and contract in response to changes in pH generated by an endothelium that envelops the air-sac. Vacuolar type H+ V-ATPase (VHA) in the endothelium acidifies and shrinks the air-sac, while alkalinization and expansion are regulated by the cyclic adenosine monophosphate signal transduction pathway. Thus, Chaoborus air-sacs function as mechanochemical engines, transforming pH changes into mechanical work against hydrostatic pressure. As the resilin bands interlaminate with bands of cuticle, changes in resilin volume are constrained to a single direction along the air-sac's longitudinal axis. This makes the air-sac functionally equivalent to a cross-striated pH muscle and demonstrates a unique biological role for resilin as an active structural element.
Collapse
Affiliation(s)
- Evan K G McKenzie
- Department of Zoology, The University of British Columbia, Vancouver, Canada.
| | - Garfield T Kwan
- Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA, USA
| | - Martin Tresguerres
- Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA, USA
| | - Philip G D Matthews
- Department of Zoology, The University of British Columbia, Vancouver, Canada
| |
Collapse
|
11
|
Michels JJ, Brzezinski M, Scheidt T, Lemke EA, Parekh SH. Role of Solvent Compatibility in the Phase Behavior of Binary Solutions of Weakly Associating Multivalent Polymers. Biomacromolecules 2022; 23:349-364. [PMID: 34866377 PMCID: PMC8753604 DOI: 10.1021/acs.biomac.1c01301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/23/2021] [Indexed: 11/29/2022]
Abstract
Condensate formation of biopolymer solutions, prominently those of various intrinsically disordered proteins (IDPs), is often driven by "sticky" interactions between associating residues, multivalently present along the polymer backbone. Using a ternary mean-field "stickers-and-spacers" model, we demonstrate that if sticker association is of the order of a few times the thermal energy, a delicate balance between specific binding and nonspecific polymer-solvent interactions gives rise to a particularly rich ternary phase behavior under physiological circumstances. For a generic system represented by a solution comprising multiassociative scaffold and client polymers, the difference in solvent compatibility between the polymers modulates the nature of isothermal liquid-liquid phase separation (LLPS) between associative and segregative. The calculations reveal regimes of dualistic phase behavior, where both types of LLPS occur within the same phase diagram, either associated with the presence of multiple miscibility gaps or a flip in the slope of the tie-lines belonging to a single coexistence region.
Collapse
Affiliation(s)
- Jasper J. Michels
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Mateusz Brzezinski
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Tom Scheidt
- Institute
for Molecular Biology, Johannes Gutenberg
University, Ackermannweg
4, 55128 Mainz, Germany
| | - Edward A. Lemke
- Institute
for Molecular Biology, Johannes Gutenberg
University, Ackermannweg
4, 55128 Mainz, Germany
| | - Sapun H. Parekh
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- Department
of Biomedical Engineering, The University
of Texas at Austin, 107
West Dean Keeton Street Stop C0800, Austin, Texas 78712, United States
| |
Collapse
|
12
|
Wanasingha N, Dutta NK, Choudhury NR. Emerging bioadhesives: from traditional bioactive and bioinert to a new biomimetic protein-based approach. Adv Colloid Interface Sci 2021; 296:102521. [PMID: 34534751 DOI: 10.1016/j.cis.2021.102521] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 09/04/2021] [Accepted: 09/04/2021] [Indexed: 12/29/2022]
Abstract
Bioadhesives have reached significant milestones over the past two decades. Research has shown not only to produce adhesives capable of adhering to dry tissue but recently wet tissue as well. However, most bioadhesives developed have exhibited high adhesion strength yet lack other properties required for versatility in application, such as elasticity, biocompatibility and biodegradability. Adapting from limitations met from early bioadhesives and meeting the current demand allows novel bioadhesives to reach new milestones for the future. In this review, we overview the progression and variations of bioadhesives, current trends, characterisation techniques and conclude with future perspectives for bioadhesives for tissue engineering applications.
Collapse
Affiliation(s)
- Nisal Wanasingha
- School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | - Naba K Dutta
- School of Engineering, RMIT University, Melbourne, VIC 3000, Australia
| | | |
Collapse
|
13
|
Wang B, Patkar SS, Kiick KL. Application of Thermoresponsive Intrinsically Disordered Protein Polymers in Nanostructured and Microstructured Materials. Macromol Biosci 2021; 21:e2100129. [PMID: 34145967 PMCID: PMC8449816 DOI: 10.1002/mabi.202100129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/25/2021] [Indexed: 01/15/2023]
Abstract
Modulation of inter- and intramolecular interactions between bioinspired designer molecules can be harnessed for developing functional structures that mimic the complex hierarchical organization of multicomponent assemblies observed in nature. Furthermore, such multistimuli-responsive molecules offer orthogonal tunability for generating versatile multifunctional platforms via independent biochemical and biophysical cues. In this review, the remarkable physicochemical and mechanical properties of genetically engineered protein polymers derived from intrinsically disordered proteins, specifically elastin and resilin, are discussed. This review highlights emerging technologies which use them as building blocks in the fabrication of highly programmable structured biomaterials for applications in delivery of biotherapeutic cargo and regenerative medicine.
Collapse
Affiliation(s)
- Bin Wang
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA
| | - Sai S Patkar
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA
- Department of Biomedical Engineering, University of Delaware, 161 Colburn Laboratory, Newark, DE, 19716, USA
- Delaware Biotechnology Institute, Ammon Pinizzotto Biopharmaceutical Innovation Center, 590 Avenue 1743, Newark, DE, 19713, USA
| |
Collapse
|
14
|
Shapiro DM, Ney M, Eghtesadi SA, Chilkoti A. Protein Phase Separation Arising from Intrinsic Disorder: First-Principles to Bespoke Applications. J Phys Chem B 2021; 125:6740-6759. [PMID: 34143622 DOI: 10.1021/acs.jpcb.1c01146] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The phase separation of biomolecules has become the focus of intense research in the past decade, with a growing body of research implicating this phenomenon in essentially all biological functions, including but not limited to homeostasis, stress responses, gene regulation, cell differentiation, and disease. Excellent reviews have been published previously on the underlying physical basis of liquid-liquid phase separation (LLPS) of biological molecules (Nat. Phys. 2015, 11, 899-904) and LLPS as it occurs natively in physiology and disease (Science 2017, 357, eaaf4382; Biochemistry 2018, 57, 2479-2487; Chem. Rev. 2014, 114, 6844-6879). Here, we review how the theoretical physical basis of LLPS has been used to better understand the behavior of biomolecules that undergo LLPS in natural systems and how this understanding has also led to the development of novel synthetic systems that exhibit biomolecular phase separation, and technologies that exploit these phenomena. In part 1 of this Review, we explore the theory behind the phase separation of biomolecules and synthetic macromolecules and introduce a few notable phase-separating biomolecules. In part 2, we cover experimental and computational methods used to study phase-separating proteins and how these techniques have uncovered the mechanisms underlying phase separation in physiology and disease. Finally, in part 3, we cover the development and applications of engineered phase-separating polypeptides, ranging from control of their self-assembly to create defined supramolecular architectures to reprogramming biological processes using engineered IDPs that exhibit LLPS.
Collapse
Affiliation(s)
- Daniel Mark Shapiro
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Max Ney
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Seyed Ali Eghtesadi
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| |
Collapse
|
15
|
Basheer A, Shahid S, Kang MJ, Lee JH, Lee JS, Lim DW. Switchable Self-Assembly of Elastin- and Resilin-Based Block Copolypeptides with Converse Phase Transition Behaviors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:24385-24400. [PMID: 34006089 DOI: 10.1021/acsami.1c00676] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Self-assembly of thermally responsive polypeptides into unique nanostructures offers intriguing attributes including dynamic physical dimensions, biocompatibility, and biodegradability for the smart bio-nanomaterials. As elastin-based polypeptide (EBP) fusion proteins with lower critical solution temperature (LCST) are studied as drug delivery systems, EBP block copolypeptides with the resilin-based polypeptide (RBP) displaying an upper critical solution temperature (UCST) have been of great interest. In this study, we report thermally triggered, dynamic self-assembly of EBP- and RBP-based diblock copolypeptides into switched nanostructures with reversibility under physiological conditions. Molecular DNA clones encoding for the EBP-RBP diblocks at different block length ratios were biosynthesized via recursive directional ligation and overexpressed, followed by nonchromatographic purification by inverse transition cycling. Genetically engineered diblock copolypeptides composed of the EBP with an LCST and the RBP with a UCST showed converse phase transition behaviors with both a distinct LCST and a distinct UCST (LCST < UCST). As temperature increased, three phases of these EBP-RBP diblocks were observed: (1) self-assembled micelles or vesicles below both LCST and UCST, (2) whole aggregates above LCST and below UCST, and (3) reversed micelles above both LCST and UCST. In conclusion, these stimuli-triggered, dynamic protein-based nanostructures are promising for advanced drug delivery systems, regenerative medicine, and biomedical nanotechnology.
Collapse
Affiliation(s)
- Aamna Basheer
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - Shahzaib Shahid
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - Min Jung Kang
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - Jae Hee Lee
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - Jae Sang Lee
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - Dong Woo Lim
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| |
Collapse
|
16
|
Song WW, Qian ZG, Liu H, Chen HF, Kaplan DL, Xia XX. On-Demand Regulation of Dual Thermosensitive Protein Hydrogels. ACS Macro Lett 2021; 10:395-400. [PMID: 35549223 DOI: 10.1021/acsmacrolett.1c00062] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Despite considerable progress having been made in thermosensitive protein hydrogels, regulating their thermal transitions remains a challenge due to the intricate molecular structures and interactions of the underlying protein polymers. Here we report a genetic fusion strategy to tune the unique dual thermal transitions of the C-terminal domain (CTD) of spider major ampullate spidroin 1, and explore the regulation mechanism by biophysical characterization and molecular dynamics simulations. We found that the fusion of elastin-like polypeptides (ELPs) tuned the dual transition temperatures of CTD to a physiologically relevant window, by introducing extra hydrogen bonding at low temperatures and hydrophobic interactions at high temperatures. The resulting hydrogels constructed from the fusion proteins were demonstrated to be a promising vehicle for cell preservation and delivery. This study provides insights on the regulation of the dual thermosensitive protein hydrogels and suggests a potential application of the hydrogels for consolidated cell storage and delivery.
Collapse
Affiliation(s)
- Wen-Wen Song
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zhi-Gang Qian
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Hao Liu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Hai-Feng Chen
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - David L. Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts 02155, United States
| | - Xiao-Xia Xia
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| |
Collapse
|
17
|
Balu R, Dutta NK, Dutta AK, Choudhury NR. Resilin-mimetics as a smart biomaterial platform for biomedical applications. Nat Commun 2021; 12:149. [PMID: 33420053 PMCID: PMC7794388 DOI: 10.1038/s41467-020-20375-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 11/19/2020] [Indexed: 12/14/2022] Open
Abstract
Intrinsically disordered proteins have dramatically changed the structure-function paradigm of proteins in the 21st century. Resilin is a native elastic insect protein, which features intrinsically disordered structure, unusual multi-stimuli responsiveness and outstanding resilience. Advances in computational techniques, polypeptide synthesis methods and modular protein engineering routines have led to the development of novel resilin-like polypeptides (RLPs) including modular RLPs, expanding their applications in tissue engineering, drug delivery, bioimaging, biosensors, catalysis and bioelectronics. However, how the responsive behaviour of RLPs is encoded in the amino acid sequence level remains elusive. This review summarises the milestones of RLPs, and discusses the development of modular RLP-based biomaterials, their current applications, challenges and future perspectives. A perspective of future research is that sequence and responsiveness profiling of RLPs can provide a new platform for the design and development of new modular RLP-based biomaterials with programmable structure, properties and functions.
Collapse
Affiliation(s)
- Rajkamal Balu
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
| | - Naba K Dutta
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia.
| | - Ankit K Dutta
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Namita Roy Choudhury
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia.
| |
Collapse
|
18
|
Balu R, Dorishetty P, Mata JP, Hill AJ, Dutta NK, Choudhury NR. Tuning the Hierarchical Structure and Resilience of Resilin-like Polypeptide Hydrogels Using Graphene Oxide. ACS APPLIED BIO MATERIALS 2020; 3:8688-8697. [DOI: 10.1021/acsabm.0c01088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rajkamal Balu
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | - Pramod Dorishetty
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | - Jitendra P. Mata
- Australian Centre for Neutron Scattering (ACNS), Australian Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, New South Wales 2232, Australia
| | - Anita J. Hill
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, Victoria 3168, Australia
| | - Naba K. Dutta
- School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | | |
Collapse
|
19
|
Dzuricky M, Rogers BA, Shahid A, Cremer PS, Chilkoti A. De novo engineering of intracellular condensates using artificial disordered proteins. Nat Chem 2020; 12:814-825. [PMID: 32747754 DOI: 10.1038/s41557-020-0511-7] [Citation(s) in RCA: 127] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 06/18/2020] [Indexed: 11/09/2022]
Abstract
Phase separation of intrinsically disordered proteins (IDPs) is a remarkable feature of living cells to dynamically control intracellular partitioning. Despite the numerous new IDPs that have been identified, progress towards rational engineering in cells has been limited. To address this limitation, we systematically scanned the sequence space of native IDPs and designed artificial IDPs (A-IDPs) with different molecular weights and aromatic content, which exhibit variable condensate saturation concentrations and temperature cloud points in vitro and in cells. We created A-IDP puncta using these simple principles, which are capable of sequestering an enzyme and whose catalytic efficiency can be manipulated by the molecular weight of the A-IDP. These results provide a robust engineered platform for creating puncta with new, phase-separation-mediated control of biological function in living cells.
Collapse
Affiliation(s)
- Michael Dzuricky
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Bradley A Rogers
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA
| | - Abdulla Shahid
- Department of Computer Science, Duke University, Durham, NC, USA.,Department of Biology, Duke University, Durham, NC, USA
| | - Paul S Cremer
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, NC, USA.
| |
Collapse
|
20
|
Abstract
Biological phase separation is known to be important for cellular organization, which has recently been extended to a new class of biomolecules that form liquid-like droplets coexisting with the surrounding cellular or extracellular environment. These droplets are termed membraneless organelles, as they lack a dividing lipid membrane, and are formed through liquid-liquid phase separation (LLPS). Elucidating the molecular determinants of phase separation is a critical challenge for the field, as we are still at the early stages of understanding how cells may promote and regulate functions that are driven by LLPS. In this review, we discuss the role that disorder, perturbations to molecular interactions resulting from sequence, posttranslational modifications, and various regulatory stimuli play on protein LLPS, with a particular focus on insights that may be obtained from simulation and theory. We finally discuss how these molecular driving forces alter multicomponent phase separation and selectivity.
Collapse
Affiliation(s)
- Gregory L Dignon
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, USA;
- Laufer Center for Physical and Quantitative Biology, Stony Brook University, Stony Brook, New York 11794, USA;
| | - Robert B Best
- Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA;
| | - Jeetain Mittal
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, USA;
| |
Collapse
|
21
|
Latham AP, Zhang B. Maximum Entropy Optimized Force Field for Intrinsically Disordered Proteins. J Chem Theory Comput 2019; 16:773-781. [PMID: 31756104 DOI: 10.1021/acs.jctc.9b00932] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Intrinsically disordered proteins (IDPs) constitute a significant fraction of eukaryotic proteomes. High-resolution characterization of IDP conformational ensembles can help elucidate their roles in a wide range of biological processes but remains challenging both experimentally and computationally. Here, we present a generic algorithm to improve the accuracy of coarse-grained IDP models using a diverse set of experimental measurements. It combines maximum entropy optimization and least-squares regression to systematically adjust model parameters and improve the agreement between simulation and experiment. We successfully applied the algorithm to derive a transferable force field, which we term the maximum entropy optimized force field (MOFF), for de novo prediction of IDP structures. Statistical analysis of force field parameters reveals features of amino acid interactions not captured by potentials designed to work well for folded proteins. We anticipate its combination of efficiency and accuracy will make MOFF useful for studying the phase separation of IDPs, which drives the formation of various biological compartments.
Collapse
Affiliation(s)
- Andrew P Latham
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Bin Zhang
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| |
Collapse
|
22
|
Wang Y, Katyal P, Montclare JK. Protein-Engineered Functional Materials. Adv Healthc Mater 2019; 8:e1801374. [PMID: 30938924 PMCID: PMC6703858 DOI: 10.1002/adhm.201801374] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 02/25/2019] [Indexed: 12/13/2022]
Abstract
Proteins are versatile macromolecules that can perform a variety of functions. In the past three decades, they have been commonly used as building blocks to generate a range of biomaterials. Owing to their flexibility, proteins can either be used alone or in combination with other functional molecules. Advances in synthetic and chemical biology have enabled new protein fusions as well as the integration of new functional groups leading to biomaterials with emergent properties. This review discusses protein-engineered materials from the perspectives of domain-based designs as well as physical and chemical approaches for crosslinked materials, with special emphasis on the creation of hydrogels. Engineered proteins that organize or template metal ions, bear noncanonical amino acids (NCAAs), and their potential applications, are also reviewed.
Collapse
Affiliation(s)
- Yao Wang
- Department of Chemical and Biomolecular Engineering, New
York University, Tandon School of Engineering, Brooklyn, NY 11201, United
States
| | - Priya Katyal
- Department of Chemical and Biomolecular Engineering, New
York University, Tandon School of Engineering, Brooklyn, NY 11201, United
States
| | - Jin Kim Montclare
- Department of Chemical and Biomolecular Engineering, New
York University, Tandon School of Engineering, Brooklyn, NY 11201, United
States
- Department of Chemistry, New York University, New York, NY
10003, United States
- Department of Biomaterials, New York University College of
Dentistry, New York, NY 10010, United States
- Department of Radiology, New York University School of
Medicine, New York, New York, 10016, United States
| |
Collapse
|
23
|
Dignon G, Zheng W, Kim YC, Mittal J. Temperature-Controlled Liquid-Liquid Phase Separation of Disordered Proteins. ACS CENTRAL SCIENCE 2019; 5:821-830. [PMID: 31139718 PMCID: PMC6535772 DOI: 10.1021/acscentsci.9b00102] [Citation(s) in RCA: 160] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Indexed: 05/18/2023]
Abstract
The liquid-liquid phase separation (LLPS) of intrinsically disordered proteins (IDPs) is a commonly observed phenomenon within the cell, and such condensates are also highly attractive for applications in biomaterials and drug delivery. A better understanding of the sequence-dependent thermoresponsive behavior is of immense interest as it will aid in the design of protein sequences with desirable properties and in the understanding of cellular response to heat stress. In this work, we use a transferable coarse-grained model to directly probe the sequence-dependent thermoresponsive phase behavior of IDPs. To achieve this goal, we develop a unique knowledge-based amino acid potential that accounts for the temperature-dependent effects on solvent-mediated interactions for different types of amino acids. Remarkably, we are able to distinguish between more than 35 IDPs with upper or lower critical solution temperatures at experimental conditions, thus providing direct evidence that incorporating the temperature-dependent solvent-mediated interactions to IDP assemblies can capture the difference in the shape of the resulting phase diagrams. Given the success of the model in predicting experimental behavior, we use it as a high-throughput screening framework to scan through millions of disordered sequences to characterize the composition dependence of protein phase separation.
Collapse
Affiliation(s)
- Gregory
L. Dignon
- Department
of Chemical and Biomolecular Engineering, Lehigh University, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
| | - Wenwei Zheng
- College
of Integrative Sciences and Arts, Arizona
State University, Mesa, Arizona 85212, United
States
| | - Young C. Kim
- Center
for Materials Physics and Technology, Naval
Research Laboratory, Washington, D.C. 20375, United States
| | - Jeetain Mittal
- Department
of Chemical and Biomolecular Engineering, Lehigh University, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
| |
Collapse
|
24
|
Garcia Garcia C, Kiick KL. Methods for producing microstructured hydrogels for targeted applications in biology. Acta Biomater 2019; 84:34-48. [PMID: 30465923 PMCID: PMC6326863 DOI: 10.1016/j.actbio.2018.11.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 11/12/2018] [Accepted: 11/19/2018] [Indexed: 12/29/2022]
Abstract
Hydrogels have been broadly studied for applications in clinically motivated fields such as tissue regeneration, drug delivery, and wound healing, as well as in a wide variety of consumer and industry uses. While the control of mechanical properties and network structures are important in all of these applications, for regenerative medicine applications in particular, matching the chemical, topographical and mechanical properties for the target use/tissue is critical. There have been multiple alternatives developed for fabricating materials with microstructures with goals of controlling the spatial location, phenotypic evolution, and signaling of cells. The commonly employed polymers such as poly(ethylene glycol) (PEG), polypeptides, and polysaccharides (as well as others) can be processed by various methods in order to control material heterogeneity and microscale structures. We review here the more commonly used polymers, chemistries, and methods for generating microstructures in biomaterials, highlighting the range of possible morphologies that can be produced, and the limitations of each method. With a focus in liquid-liquid phase separation, methods and chemistries well suited for stabilizing the interface and arresting the phase separation are covered. As the microstructures can affect cell behavior, examples of such effects are reviewed as well. STATEMENT OF SIGNIFICANCE: Heterogeneous hydrogels with enhanced matrix complexity have been studied for a variety of biomimetic materials. A range of materials based on poly(ethylene glycol), polypeptides, proteins, and/or polysaccharides, have been employed in the studies of materials that by virtue of their microstructure, can control the behaviors of cells. Methods including microfluidics, photolithography, gelation in the presence of porogens, and liquid-liquid phase separation, are presented as possible strategies for producing materials, and their relative advantages and disadvantages are discussed. We also describe in more detail the various processes involved in LLPS, and how they can be manipulated to alter the kinetics of phase separation and to yield different microstructured materials.
Collapse
Affiliation(s)
- Cristobal Garcia Garcia
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA; Biomedical Engineering, University of Delaware, Newark, DE 19176, USA; Delaware Biotechnology Institute, Newark, DE 19716, USA
| |
Collapse
|
25
|
Luo F, Qian ZG, Xia XX. Responsive Protein Hydrogels Assembled from Spider Silk Carboxyl-Terminal Domain and Resilin Copolymers. Polymers (Basel) 2018; 10:E915. [PMID: 30960840 PMCID: PMC6403847 DOI: 10.3390/polym10080915] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 08/09/2018] [Accepted: 08/09/2018] [Indexed: 11/16/2022] Open
Abstract
Responsive protein hydrogels are known to respond to target external stimuli that cause changes in their properties, attracting considerable attention for diverse applications. Here we report the design and recombinant biosynthesis of protein copolymers via genetic fusion of repeating units of resilin with spider silk carboxyl-terminal (CT) domain. The resulting copolymers were thermoresponsive in aqueous solutions, and formed reversible hydrogels at low temperatures and irreversible hydrogels at high temperatures within minutes, a peculiar dual thermogelation feature endowed by the CT domain. The incorporation of resilin blocks upshifted the temperature range of reversible gelation and hydrogel stiffness, whereas the temperature of irreversible gelation was differentially affected by the length of the resilin blocks. In addition, sodium chloride and potassium phosphate at moderate concentrations downregulated both the reversible and irreversible gelation temperatures and hydrogel mechanical properties, proving the salts as another level of control over dual thermogelation. Surprisingly, the copolymers were prone to gelate at body temperature in a time-dependent manner, and the resulting hydrogels were pH-responsive to release a highly polar model drug in vitro. The newly developed resilin-CT copolymers and the multistimuli-responsive hydrogels may be potentially useful in biomedicine, such as for drug delivery.
Collapse
Affiliation(s)
- Fang Luo
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Zhi-Gang Qian
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Xiao-Xia Xia
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
| |
Collapse
|
26
|
Fang W, Nonappa, Vitikainen M, Mohammadi P, Koskela S, Soikkeli M, Westerholm-Parvinen A, Landowski CP, Penttilä M, Linder MB, Laaksonen P. Coacervation of resilin fusion proteins containing terminal functionalities. Colloids Surf B Biointerfaces 2018; 171:590-596. [PMID: 30098537 DOI: 10.1016/j.colsurfb.2018.07.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 05/11/2018] [Accepted: 07/23/2018] [Indexed: 12/16/2022]
Abstract
Liquid-liquid phase transition known as coacervation of resilin-like-peptide fusion proteins containing different terminal domains were investigated. Two different modular proteins were designed and produced and their behavior were compared to a resilin-like-peptide without terminal domains. The size of the particle-like coacervates was modulated by the protein concentration, pH and temperature. The morphology and three-dimensional (3D) structural details of the coacervate particles were investigated by cryogenic transmission electron microscopy (cryo-TEM) and tomography (cryo-ET) reconstruction. Selective adhesion of the coacervates on cellulose and graphene surfaces was demonstrated.
Collapse
Affiliation(s)
- Wenwen Fang
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, AALTO, Finland
| | - Nonappa
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, AALTO, Finland; Department of Applied Physics, Aalto University, Espoo, FI-00076, AALTO, Finland
| | - Marika Vitikainen
- VTT Technical Research Centre of Finland Ltd., Espoo, FI-02044, VTT, Finland
| | - Pezhman Mohammadi
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, AALTO, Finland
| | - Salla Koskela
- VTT Technical Research Centre of Finland Ltd., Espoo, FI-02044, VTT, Finland
| | - Miika Soikkeli
- VTT Technical Research Centre of Finland Ltd., Espoo, FI-02044, VTT, Finland
| | | | | | - Merja Penttilä
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, AALTO, Finland; VTT Technical Research Centre of Finland Ltd., Espoo, FI-02044, VTT, Finland
| | - Markus B Linder
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, AALTO, Finland
| | - Päivi Laaksonen
- Department of Bioproducts and Biosystems, Aalto University, Espoo, FI-00076, AALTO, Finland.
| |
Collapse
|
27
|
Dzuricky M, Roberts S, Chilkoti A. Convergence of Artificial Protein Polymers and Intrinsically Disordered Proteins. Biochemistry 2018; 57:2405-2414. [PMID: 29683665 DOI: 10.1021/acs.biochem.8b00056] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A flurry of research in recent years has revealed the molecular origins of many membraneless organelles to be the liquid phase separation of intrinsically disordered proteins (IDPs). Consequently, protein disorder has emerged as an important driver of intracellular compartmentalization by providing specialized microenvironments chemically distinct from the surrounding medium. Though the importance of protein disorder and its relationship to intracellular phase behavior are clear, a detailed understanding of how such phase behavior can be predicted and controlled remains elusive. While research in IDPs has largely focused on the implications of structural disorder on cellular function and disease, another field, that of artificial protein polymers, has focused on the de novo design of protein polymers with controllable material properties. A subset of these polymers, specifically those derived from structural proteins such as elastin and resilin, are also disordered sequences that undergo liquid-liquid phase separation. This phase separation has been used in a variety of biomedical applications, and researchers studying these polymers have developed methods to precisely characterize and tune their phase behavior. Despite their disparate origins, both fields are complementary as they study the phase behavior of intrinsically disordered polypeptides. This Perspective hopes to stimulate collaborative efforts by highlighting the similarities between these two fields and by providing examples of how such collaboration could be mutually beneficial.
Collapse
Affiliation(s)
- Michael Dzuricky
- Department of Biomedical Engineering , Duke University , Durham , North Carolina 27708-0281 , United States
| | - 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
| |
Collapse
|
28
|
Prasad K, Mondal D, Sharma M, Freire MG, Mukesh C, Bhatt J. Stimuli responsive ion gels based on polysaccharides and other polymers prepared using ionic liquids and deep eutectic solvents. Carbohydr Polym 2018; 180:328-336. [PMID: 29103512 PMCID: PMC6159887 DOI: 10.1016/j.carbpol.2017.10.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 10/03/2017] [Accepted: 10/03/2017] [Indexed: 10/18/2022]
Abstract
Ion gels and self-healing gels prepared using ionic liquids (ILs) and deep eutectic solvents (DESs) have been largely investigated in the past years due to their remarkable applications in different research areas. Herewith we provide an overview on the ILs and DESs used for the preparation of ion gels, highlight the preparation and physicochemical characteristics of stimuli responsive gel materials based on co-polymers and biopolymers, with special emphasis on polysaccharides and discuss their applications. Overall, this review summarizes the fundamentals and advances in ion gels with switchable properties prepared using ILs or DESs, as well as their potential applications in electrochemistry, in sensing devices and as drug delivery vehicles.
Collapse
Affiliation(s)
- Kamalesh Prasad
- Natural Products and Green Chemistry Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B Marg, Bhavnagar 364002, Gujarat, India; AcSIR- Central Salt & Marine Chemicals Research Institute, G. B Marg, Bhavnagar 364002, Gujarat, India.
| | - Dibyendu Mondal
- Sustainable Energy Materials and Processes Group, Centre for Nano and Material Science, Jain University, Bangalore 562112, India
| | - Mukesh Sharma
- CICECO-Aveiro Institute of Materials, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mara G Freire
- CICECO-Aveiro Institute of Materials, Chemistry Department, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Chandrakant Mukesh
- Department of Chemical Engineering, Indian Institute of Technology, Delhi 110016, India
| | - Jitkumar Bhatt
- Natural Products and Green Chemistry Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B Marg, Bhavnagar 364002, Gujarat, India; AcSIR- Central Salt & Marine Chemicals Research Institute, G. B Marg, Bhavnagar 364002, Gujarat, India
| |
Collapse
|
29
|
Liang Y, Li L, Scott RA, Kiick KL. Polymeric Biomaterials: Diverse Functions Enabled by Advances in Macromolecular Chemistry. Macromolecules 2017; 50:483-502. [PMID: 29151616 PMCID: PMC5687278 DOI: 10.1021/acs.macromol.6b02389] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Biomaterials have been extensively used to leverage beneficial outcomes in various therapeutic applications, such as providing spatial and temporal control over the release of therapeutic agents in drug delivery as well as engineering functional tissues and promoting the healing process in tissue engineering and regenerative medicine. This perspective presents important milestones in the development of polymeric biomaterials with defined structures and properties. Contemporary studies of biomaterial design have been reviewed with focus on constructing materials with controlled structure, dynamic functionality, and biological complexity. Examples of these polymeric biomaterials enabled by advanced synthetic methodologies, dynamic chemistry/assembly strategies, and modulated cell-material interactions have been highlighted. As the field of polymeric biomaterials continues to evolve with increased sophistication, current challenges and future directions for the design and translation of these materials are also summarized.
Collapse
Affiliation(s)
- Yingkai Liang
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Linqing Li
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Rebecca A. Scott
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
- Nemours-Alfred I. duPont Hospital for Children, Department of Biomedical Research, 1600 Rockland Road, Wilmington, DE 19803, USA
| | - Kristi L. Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
- Department of Biomedical Engineering, University of Delaware, Newark, DE 19716, USA
- Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE, 19711, USA
| |
Collapse
|
30
|
Taylor MJ, Tomlins P, Sahota TS. Thermoresponsive Gels. Gels 2017; 3:E4. [PMID: 30920501 PMCID: PMC6318636 DOI: 10.3390/gels3010004] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 12/14/2016] [Accepted: 12/16/2016] [Indexed: 01/08/2023] Open
Abstract
Thermoresponsive gelling materials constructed from natural and synthetic polymers can be used to provide triggered action and therefore customised products such as drug delivery and regenerative medicine types as well as for other industries. Some materials give Arrhenius-type viscosity changes based on coil to globule transitions. Others produce more counterintuitive responses to temperature change because of agglomeration induced by enthalpic or entropic drivers. Extensive covalent crosslinking superimposes complexity of response and the upper and lower critical solution temperatures can translate to critical volume temperatures for these swellable but insoluble gels. Their structure and volume response confer advantages for actuation though they lack robustness. Dynamic covalent bonding has created an intermediate category where shape moulding and self-healing variants are useful for several platforms. Developing synthesis methodology-for example, Reversible Addition Fragmentation chain Transfer (RAFT) and Atomic Transfer Radical Polymerisation (ATRP)-provides an almost infinite range of materials that can be used for many of these gelling systems. For those that self-assemble into micelle systems that can gel, the upper and lower critical solution temperatures (UCST and LCST) are analogous to those for simpler dispersible polymers. However, the tuned hydrophobic-hydrophilic balance plus the introduction of additional pH-sensitivity and, for instance, thermochromic response, open the potential for coupled mechanisms to create complex drug targeting effects at the cellular level.
Collapse
Affiliation(s)
- M Joan Taylor
- INsmart group, School of Pharmacy Faculty of Health & Life Sciences, De Montfort University, Leicester, LE1 9BH, UK.
| | - Paul Tomlins
- INsmart group, School of Pharmacy Faculty of Health & Life Sciences, De Montfort University, Leicester, LE1 9BH, UK.
| | - Tarsem S Sahota
- INsmart group, School of Pharmacy Faculty of Health & Life Sciences, De Montfort University, Leicester, LE1 9BH, UK.
| |
Collapse
|
31
|
Balu R, Mata JP, Knott R, Elvin CM, Hill AJ, Choudhury NR, Dutta NK. Effects of Crowding and Environment on the Evolution of Conformational Ensembles of the Multi-Stimuli-Responsive Intrinsically Disordered Protein, Rec1-Resilin: A Small-Angle Scattering Investigation. J Phys Chem B 2016; 120:6490-503. [PMID: 27281267 DOI: 10.1021/acs.jpcb.6b02475] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this study, we explore the overall structural ensembles and transitions of a biomimetic, multi-stimuli-responsive, intrinsically disordered protein (IDP), Rec1-resilin. The structural transition of Rec1-resilin with change in molecular crowding and environment is evaluated using small-angle neutron scattering and small-angle X-ray scattering. The quantitative analyses of the experimental scattering data using a combination of computational models allowed comprehensive description of the structural evolution, organization, and conformational ensembles of Rec1-resilin in response to the changes in concentration, pH, and temperature. Rec1-resilin in uncrowded solutions demonstrates the equilibrium intrinsic structure quality of an IDP with radius of gyration Rg ∼ 5 nm, and a scattering function for the triaxial ellipsoidal model best fit the experimental dataset. On crowding (increase in concentration >10 wt %), Rec1-resilin molecules exert intermolecular repulsive force of interaction, the Rg value reduces with a progressive increase in concentration, and molecular chains transform from a Gaussian coil to a fully swollen coil. It is also revealed that the structural organization of Rec1-resilin dynamically transforms from a rod (pH 2) to coil (pH 4.8) and to globular (pH 12) as a function of pH. The findings further support the temperature-triggered dual-phase-transition behavior of Rec1-resilin, exhibiting rod-shaped structural organization below the upper critical solution temperature (∼4 °C) and a large but compact structure above the lower critical solution temperature (∼75 °C). This work attempted to correlate unusual responsiveness of Rec1-resilin to the evolution of conformational ensembles.
Collapse
Affiliation(s)
- Rajkamal Balu
- Future Industries Institute, University of South Australia , Mawson Lakes, SA 5095, Australia
| | - Jitendra P Mata
- Bragg Institute, ANSTO , Private Mail Bag, Kirrawee, NSW 2232, Australia
| | - Robert Knott
- Bragg Institute, ANSTO , Private Mail Bag, Kirrawee, NSW 2232, Australia
| | - Christopher M Elvin
- CSIRO Agriculture, Level 6, Queensland Bioscience Precinct , St Lucia, QLD 4067, Australia
| | - Anita J Hill
- CSIRO Manufacturing , Bayview Avenue, Clayton, VIC 3168, Australia
| | - Namita R Choudhury
- School of Chemical Engineering, The University of Adelaide , Adelaide, SA 5005, Australia.,Future Industries Institute, University of South Australia , Mawson Lakes, SA 5095, Australia
| | - Naba K Dutta
- School of Chemical Engineering, The University of Adelaide , Adelaide, SA 5005, Australia.,Future Industries Institute, University of South Australia , Mawson Lakes, SA 5095, Australia
| |
Collapse
|
32
|
Lau HK, Li L, Jurusik AK, Sabanayagam CR, Kiick KL. Aqueous Liquid–Liquid Phase Separation of Resilin-Like Polypeptide/Polyethylene Glycol Solutions for the Formation of Microstructured Hydrogels. ACS Biomater Sci Eng 2016; 3:757-766. [DOI: 10.1021/acsbiomaterials.6b00076] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hang Kuen Lau
- Department
of Materials Science and Engineering, 201 DuPont Hall, University of Delaware, Newark Delaware 19716, United States
| | - Linqing Li
- Department
of Materials Science and Engineering, 201 DuPont Hall, University of Delaware, Newark Delaware 19716, United States
| | - Anna K. Jurusik
- Department
of Materials Science and Engineering, 201 DuPont Hall, University of Delaware, Newark Delaware 19716, United States
| | | | - Kristi L. Kiick
- Department
of Materials Science and Engineering, 201 DuPont Hall, University of Delaware, Newark Delaware 19716, United States
- Department
of Biomedical Engineering, University of Delaware, 150 Academy
Street, Newark Delaware 19176, United States
- Delaware Biotechnology Institute, 15 Innovation Way, Newark Delaware 19711, United States
| |
Collapse
|
33
|
Quiroz FG, Chilkoti A. Sequence heuristics to encode phase behaviour in intrinsically disordered protein polymers. NATURE MATERIALS 2015; 14:1164-71. [PMID: 26390327 PMCID: PMC4618764 DOI: 10.1038/nmat4418] [Citation(s) in RCA: 293] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Accepted: 08/04/2015] [Indexed: 05/17/2023]
Abstract
Proteins and synthetic polymers that undergo aqueous phase transitions mediate self-assembly in nature and in man-made material systems. Yet little is known about how the phase behaviour of a protein is encoded in its amino acid sequence. Here, by synthesizing intrinsically disordered, repeat proteins to test motifs that we hypothesized would encode phase behaviour, we show that the proteins can be designed to exhibit tunable lower or upper critical solution temperature (LCST and UCST, respectively) transitions in physiological solutions. We also show that mutation of key residues at the repeat level abolishes phase behaviour or encodes an orthogonal transition. Furthermore, we provide heuristics to identify, at the proteome level, proteins that might exhibit phase behaviour and to design novel protein polymers consisting of biologically active peptide repeats that exhibit LCST or UCST transitions. These findings set the foundation for the prediction and encoding of phase behaviour at the sequence level.
Collapse
Affiliation(s)
- Felipe García Quiroz
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, USA
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, USA
| |
Collapse
|
34
|
Roberts S, Dzuricky M, Chilkoti A. Elastin-like polypeptides as models of intrinsically disordered proteins. FEBS Lett 2015; 589:2477-86. [PMID: 26325592 PMCID: PMC4599720 DOI: 10.1016/j.febslet.2015.08.029] [Citation(s) in RCA: 172] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 08/18/2015] [Accepted: 08/19/2015] [Indexed: 01/01/2023]
Abstract
Elastin-like polypeptides (ELPs) are a class of stimuli-responsive biopolymers inspired by the intrinsically disordered domains of tropoelastin that are composed of repeats of the VPGXG pentapeptide motif, where X is a "guest residue". They undergo a reversible, thermally triggered lower critical solution temperature (LCST) phase transition, which has been utilized for a variety of applications including protein purification, affinity capture, immunoassays, and drug delivery. ELPs have been extensively studied as protein polymers and as biomaterials, but their relationship to other disordered proteins has heretofore not been established. The biophysical properties of ELPs that lend them their unique material behavior are similar to the properties of many intrinsically disordered proteins (IDP). Their low sequence complexity, phase behavior, and elastic properties make them an interesting "minimal" artificial IDP, and the study of ELPs can hence provide insights into the behavior of other more complex IDPs. Motivated by this emerging realization of the similarities between ELPs and IDPs, this review discusses the biophysical properties of ELPs, their biomedical utility, and their relationship to other disordered polypeptide sequences.
Collapse
|
35
|
Li Y, Zhang C, Zhou Y, Dong Y, Chen W. Novel multi-responsive polymer materials: When ionic liquids step in. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.05.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
36
|
Balu R, Knott R, Cowieson NP, Elvin CM, Hill AJ, Choudhury NR, Dutta NK. Structural ensembles reveal intrinsic disorder for the multi-stimuli responsive bio-mimetic protein Rec1-resilin. Sci Rep 2015; 5:10896. [PMID: 26042819 PMCID: PMC4455251 DOI: 10.1038/srep10896] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 04/21/2015] [Indexed: 01/08/2023] Open
Abstract
Rec1-resilin is the first recombinant resilin-mimetic protein polymer, synthesized from exon-1 of the Drosophila melanogaster gene CG15920 that has demonstrated unusual multi-stimuli responsiveness in aqueous solution. Crosslinked hydrogels of Rec1-resilin have also displayed remarkable mechanical properties including near-perfect rubber-like elasticity. The structural basis of these extraordinary properties is not clearly understood. Here we combine a computational and experimental investigation to examine structural ensembles of Rec1-resilin in aqueous solution. The structure of Rec1-resilin in aqueous solutions is investigated experimentally using circular dichroism (CD) spectroscopy and small angle X-ray scattering (SAXS). Both bench-top and synchrotron SAXS are employed to extract structural data sets of Rec1-resilin and to confirm their validity. Computational approaches have been applied to these experimental data sets in order to extract quantitative information about structural ensembles including radius of gyration, pair-distance distribution function, and the fractal dimension. The present work confirms that Rec1-resilin is an intrinsically disordered protein (IDP) that displays equilibrium structural qualities between those of a structured globular protein and a denatured protein. The ensemble optimization method (EOM) analysis reveals a single conformational population with partial compactness. This work provides new insight into the structural ensembles of Rec1-resilin in solution.
Collapse
Affiliation(s)
- Rajkamal Balu
- Ian Wark Research Institute, University of South Australia, Mawson Lakes campus, Mawson lakes, South Australia 5095, Australia
| | - Robert Knott
- ANSTO, Private Mail Bag, Kirrawee, New South Wales 2232, Australia
| | - Nathan P. Cowieson
- Centre for Synchrotron Science, Monash University, Victoria 3800, Australia
| | - Christopher M. Elvin
- CSIRO Agriculture, Level 6, Queensland Bioscience Precinct, St Lucia, Queensland 4067, Australia
| | - Anita J. Hill
- CSIRO Manufacturing, Clayton, Victoria 3168, Australia
| | - Namita R. Choudhury
- Ian Wark Research Institute, University of South Australia, Mawson Lakes campus, Mawson lakes, South Australia 5095, Australia
| | - Naba K. Dutta
- Ian Wark Research Institute, University of South Australia, Mawson Lakes campus, Mawson lakes, South Australia 5095, Australia
| |
Collapse
|
37
|
Balu R, Bourgeois L, Elvin CM, Hill AJ, Choudhury NR, Dutta NK. A multi-responsive intrinsically disordered protein (IDP)-directed green synthesis of fluorescent gold nanoclusters. J Mater Chem B 2015; 3:6580-6586. [DOI: 10.1039/c5tb00659g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we demonstrate the green synthesis of fluorescent gold nanoclusters (AuNCs) using a multi-responsive intrinsically disordered protein (IDP) polymer, Rec1-resilin, as a multi-functional template.
Collapse
Affiliation(s)
- Rajkamal Balu
- Ian Wark Research Institute
- University of South Australia
- Australia
| | - Laure Bourgeois
- Monash Centre for Electron Microscopy
- Department of Science and Engineering
- Monash University
- Clayton
- Australia
| | | | | | | | - Naba K. Dutta
- Ian Wark Research Institute
- University of South Australia
- Australia
| |
Collapse
|