Article
Chemistry, Multidisciplinary
Yongsang Jo, Jinyoung Jang, Daesun Song, Hyoin Park, Yongwon Jung
Summary: The study investigates how interactions between intrinsically disordered proteins (IDPs) drive phase separation and selective recruitment of IDPs into protein condensates. Charged residues in client IDPs, particularly tyrosines, play a significant role in IDP recruitment, while the use of crowding reagents such as poly-ethylene glycol needs to be carefully considered. Additionally, conventional interactions between folded proteins were found to have substantially stronger recruitment forces compared to natural IDP-IDP interactions.
Article
Biochemistry & Molecular Biology
Jingjing Ji, Md Shahadat Hossain, Emily N. Krueger, Zhe Zhang, Shivangi Nangia, Britnie Carpentier, Mae Martel, Shikha Nangia, Davoud Mozhdehi
Summary: Lipidated proteins are hybrid biomaterials that combine the functional capabilities of proteins with precisely engineered nano-biomaterials. The thermoresponsive behavior of fatty-acid-modified elastin-like polypeptides (FAMEs) and the structural changes induced by temperature and molecular syntax were investigated using computational nanoscopy, spectroscopy, scattering, and microscopy. These findings provide insights into the biophysical consequences of lipidation in biology and facilitate the rational design of biomaterials and therapeutics.
Article
Chemistry, Physical
Bin Wang, Rizhao Pan, Weiping Zhu, Yufang Xu, Ye Tian, Masayuki Endo, Hiroshi Sugiyama, Yangyang Yang, Xuhong Qian
Summary: Short IDPOCs were rationally designed and assembled into well-defined nanospheres, showing excellent reversible thermoresponsive regulation. The nanospheres also demonstrated biocompatibility, drug encapsulation, and effective cellular uptake.
Article
Multidisciplinary Sciences
Rebecca B. Berlow, H. Jane Dyson, Peter E. Wright
Summary: Intrinsically disordered proteins compete for binding to common regulatory targets to carry out their biological functions. The activation domains of HIF-1 alpha and CITED2 function as a unidirectional, allosteric molecular switch to control transcription of adaptive genes. The mechanistic details of this molecular switch were characterized through NMR spectroscopy and biophysical methods, revealing the contributions of individual binding motifs in CITED2. These findings provide insight into the complexity of molecular interactions involving disordered proteins and how they compete for occupancy of common targets.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Chemistry, Multidisciplinary
Hang Zhao, Emmanuel Ibarboure, Vusala Ibrahimova, Ye Xiao, Elisabeth Garanger, Sebastien Lecommandoux
Summary: This research focuses on the rational design and synthesis of thermoresponsive hybrid polypeptide-polymer conjugates, which are used in combination with an artificial cytoplasm system to study the spatial organization and temperature-responsive dynamic assembly of artificial organelle structures within cell-mimicking entities.
Article
Chemistry, Multidisciplinary
Li Wan, Yingying Zhu, Wenli Zhang, Wanmeng Mu
Summary: The engineering of a synthetic membraneless organelle platform allows for compartmentalization and spatial organization of pathway enzymes, resulting in increased product titer and yield compared to strains with free-floating enzymes. This platform is achieved by expressing intrinsically disordered proteins in host strains to form artificial membraneless organelles. Different clients can be recruited to these compartments through fusion or interaction with specific protein domains. It provides a promising approach for the development of microbial cell factories and metabolic flux optimization.
Article
Chemistry, Physical
Justin M. Horn, Yuncan Zhu, So Yeon Ahn, Allie C. Obermeyer
Summary: Intrinsically disordered polypeptides with negative charge were produced and used to create protein-based polyelectrolyte complexes. These complexes exhibited rich phase behavior and were sensitive to various factors, demonstrating both robust expression and stimuli-responsive properties of the intrinsically disordered peptides. These results suggest the potential of intrinsically disordered peptides as easily producible, biocompatible substitutes for synthetic polyelectrolytes.
Article
Chemistry, Multidisciplinary
Hwan June Kang, Suneel Kumar, Arielle D'Elia, Biraja Dash, Vikas Nanda, Henry C. Hsia, Martin L. Yarmush, Francois Berthiaume
Summary: The combination of AGEs and RAGE triggers pro-inflammatory signals that inhibit the proliferative phase of skin wound healing. A new coacervate system has been developed to reverse AGE-mediated changes, accelerate diabetic wound healing, and provide a potential therapeutic approach.
JOURNAL OF CONTROLLED RELEASE
(2021)
Article
Chemistry, Multidisciplinary
ByeongJin Cho, Jaejun Choi, RyeongHyeon Kim, Jean Nyoung Yun, Yuri Choi, Hyung Ho Lee, Junseock Koh
Summary: The article presents basic thermodynamic models for the assembly of IDP hubs with multiple target proteins and advanced models to analyze the assembly of Nup153 hubs with multiple Kap molecules, revealing the complex organization of Kap binding sites and negative cooperativity. The study demonstrates the feasibility and potential mechanism for manifold regulation of IDP functions by diverse cellular signals.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Biochemistry & Molecular Biology
Tamara Ehm, Hila Shinar, Guy Jacoby, Sagi Meir, Gil Koren, Merav Segal Asher, Joanna Korpanty, Matthew P. Thompson, Nathan C. Gianneschi, Michael M. Kozlov, Salome Azoulay-Ginsburg, Roey J. Amir, Joachim O. Raedler, Roy Beck
Summary: Intrinsically disordered peptide amphiphiles (IDPAs) are a novel class of synthetic conjugates that self-assemble into dispersed nanoscopic aggregates or ordered mesophases. Sequence variations in the IDPA systems can significantly alter the headgroup conformation and induce phase transitions, and alterations in the peptide sequence can render IDPAs susceptible to enzymatic cleavage and induce enzymatically activated phase transitions.
Review
Chemistry, Multidisciplinary
Debapriya Das, Samrat Mukhopadhyay
Summary: Protein folding and dynamics are influenced by both thermal and viscosity effects, including external viscous drag from solvent molecules and internal friction within the polypeptide chain. The physical origin of internal friction in intrinsically disordered proteins remains unclear, with diffusive conformational dynamics dominated by segmental motion of the backbone. Polymer models with internal friction are used to describe the friction in complex biopolymeric systems such as intrinsically disordered proteins.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Damiano Piovesan, Marco Necci, Nahuel Escobedo, Alexander Miguel Monzon, Andras Hatos, Ivan Micetic, Federica Quaglia, Lisanna Paladin, Pathmanaban Ramasamy, Zsuzsanna Dosztanyi, Wim F. Vranken, Norman E. Davey, Gustavo Parisi, Monika Fuxreiter, Silvio C. E. Tosatto
Summary: The latest version of MobiDB database provides more flexibility and visualization tools, allowing users to search and download large datasets more quickly.
NUCLEIC ACIDS RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Francesca Malagrino, Awa Diop, Livia Pagano, Caterina Nardella, Angelo Toto, Stefano Gianni
Summary: This article focuses on the mechanisms of induced folding in intrinsically disordered proteins (IDPs) upon binding to physiological ligands. The article first describes the general features of the reaction, then discusses some of the most remarkable findings obtained from protein engineering and kinetic studies, and finally offers a critical view on the relationship between structural heterogeneity and inherent frustration in IDPs.
CURRENT OPINION IN STRUCTURAL BIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Damiano Piovesan, Alessio Del Conte, Damiano Clementel, Alexander Miguel Monzon, Martina Bevilacqua, Maria Cristina Aspromonte, Javier A. Iserte, Fernando E. Orti, Cristina Marino-Buslje, Silvio C. E. Tosatto
Summary: The MobiDB database is a knowledge base of intrinsically disordered proteins, which collects annotations and predictions to provide new knowledge about the functional significance of disordered regions. The latest release of MobiDB focuses on improving user experience and database content, integrating AlphaFoldDB predictions and implementing the homology transfer pipeline.
NUCLEIC ACIDS RESEARCH
(2023)
Article
Engineering, Biomedical
Matthias C. Huber, Andreas Schreiber, Lara G. Stuehn, Stefan M. Schiller
Summary: The control of supramolecular complexes in living systems at the molecular level is important in life sciences. Membraneless organelles formed by liquid-liquid phase separation of intrinsically disordered proteins play a role in controlling intracellular organization. Designing chemically precise proteins based on elastin-like proteins allows for programmability and control of phase separation both in vitro and in vivo. This opens up possibilities for adjustable artificial storage and reaction spaces in pharmacy and synthetic biology.
Article
Biophysics
Kirsten N. Cicotte, Jamie A. Reed, Phuong Anh H. Nguyen, Jacqueline A. De Lora, Elizabeth L. Hedberg-Dirk, Heather E. Canavan
Article
Biochemical Research Methods
Jacqueline A. De Lora, Jason L. Velasquez, Nick J. Carroll, James P. Freyer, Andrew P. Shreve
Editorial Material
Biochemistry & Molecular Biology
Jacqueline A. De Lora, Christina M. Termini
TRENDS IN BIOCHEMICAL SCIENCES
(2020)
Article
Biology
Oskar Staufer, Jacqueline A. de Lora, Eleonora Bailoni, Alisina Bazrafshan, Amelie S. Benk, Kevin Jahnke, Zachary A. Manzer, Lado Otrin, Telmo Diez Perez, Judee Sharon, Jan Steinkuhler, Katarzyna P. Adamala, Bruna Jacobson, Marileen Dogterom, Kerstin Gopfrich, Darko Stefanovic, Susan R. Atlas, Michael Grunze, Matthew R. Lakin, Andrew P. Shreve, Joachim P. Spatz, Gabriel P. Lopez
Summary: The 'learning-by-building' approach, which combines concepts from physics, chemistry and bioengineering, is gaining popularity in the life sciences field, particularly among researchers trying to engineer cellular life from scratch. The SynCell2020/21 conference brought together researchers from various disciplines to showcase advancements and challenges in the field of synthetic cells, emphasizing the importance of building an international and interdisciplinary research community.
Editorial Material
Cell Biology
Jacqueline A. De Lora, Antentor Hinton, Christina M. Termini
Summary: Informal mentoring plays a crucial role in the development of cell biologists by offering career, scientific, and educational guidance to mentees, thereby contributing to the advancement of an inclusive cell biology community.
TRENDS IN CELL BIOLOGY
(2022)
Editorial Material
Cell Biology
Aidira D. Y. Macias Gonzalez, Sarah McCallum, Jacqueline A. De Lora
Summary: There are diverse approaches to DEI practices within the global scientific community, resulting in inequalities that hinder progress. This study frames the problem through historical perspectives and proposes a DEI framework adaptable in different locations, aiming to improve the academic environment for researchers globally.
TRENDS IN CELL BIOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Jacqueline A. De Lora, Frank A. Fencl, Aidira D. Y. Macias Gonzalez, Alireza Bandegi, Reza Foudazi, Gabriel P. Lopez, Andrew P. Shreve, Nick J. Carroll
ACS APPLIED BIO MATERIALS
(2019)
Meeting Abstract
Cell Biology
J. A. De Lora, F. A. Fencl, A. D. Macias, J. L. Velasquez, G. P. Lopez, J. P. Freyer, A. P. Shreve, N. J. Carroll
MOLECULAR BIOLOGY OF THE CELL
(2018)
Meeting Abstract
Cell Biology
J. P. Freyer, J. A. DeLora, A. P. Shreve
MOLECULAR BIOLOGY OF THE CELL
(2013)