Results 41 to 50 of about 146,944 (294)

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Kinetic analysis reveals the diversity of microscopic mechanisms through which molecular chaperones suppress amyloid formation

Nature Communications, 2016
Molecular chaperones are recognized to interfere with protein aggregation, yet the underlying mechanisms are largely unknown. Here, the authors develop a kinetic model that reveals the variety of distinct microscopic mechanisms through which molecular ...
Paolo Arosio, Thomas C. T. Michaels, Sara Linse, Cecilia Månsson, Cecilia Emanuelsson, Jenny Presto, Jan Johansson, Michele Vendruscolo, Christopher M. Dobson, Tuomas P. J. Knowles   +9 more
doaj   +1 more source

Chaperones as integrators of cellular networks: Changes of cellular integrity in stress and diseases

, 2008
Cellular networks undergo rearrangements during stress and diseases. In un-stressed state the yeast protein-protein interaction network (interactome) is highly compact, and the centrally organized modules have a large overlap.
Albanese, Albert, Almaas, Arita, Barabasi, Barabasi, Batada, Batada, Batagelj, Bertin, Bobula, Colizza, Csermely, Csermely, Csermely, Csermely, Derenyi, Ekman, Gasch, Goldberger, Guimerá, Han, Kim, Komurov, Korcsmaros, Korcsmáros, Lewandowska, Linding, Luscombe, Macario, Maslov, McAuley, McClellan, Ng, Palla, Papp, Pál, Ravasz, Rutherford, Sales-Pardo, Shorter, Song, Soti, Soti, Soti, Szabadkai, Szalay, Tanaka, Taxis, Vigh, Wang, Watts, Xu, Yu, Zhu   +54 more
core   +2 more sources

COA6 facilitates cytochrome c oxidase biogenesis as thiol-reductase for copper metallochaperones in mitochondria.

, 2020
The mitochondrial cytochrome c oxidase, the terminal enzyme of the respiratory chain, contains heme and copper centers for electron transfer. The conserved COX2 subunit contains the CuA site, a binuclear copper center.
Aich, A., Bogeski, I., Chacinska, A., Chudenkova, M., Deckers, M., Dennerlein, S., Gibhardt, C., Oeljeklaus, S., Pacheu-Grau, D., Rehling, P., Warscheid, B., Wasilewski, M.   +11 more
core   +2 more sources

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Proximity proteomics of C9orf72 dipeptide repeat proteins identifies molecular chaperones as modifiers of poly-GA aggregation

Acta Neuropathologica Communications, 2022
The most common inherited cause of two genetically and clinico-pathologically overlapping neurodegenerative diseases, amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD), is the presence of expanded GGGGCC intronic hexanucleotide ...
Feilin Liu, Dmytro Morderer, Melissa C. Wren, Sara A. Vettleson-Trutza, Yanzhe Wang, Benjamin E. Rabichow, Michelle R. Salemi, Brett S. Phinney, Björn Oskarsson, Dennis W. Dickson, Wilfried Rossoll   +10 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Overview of molecular signatures of senescence and associated resources: pros and cons

FEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas, Sylvia Vagena, Pavlos Pantelis, Giorgos Theocharous, Russel Petty, Konstantinos Evangelou, Vassilis G. Gorgoulis   +6 more
wiley   +1 more source

ORANGE family proteins: multifunctional chaperones shaping plant carotenoid level, plastid development, stress tolerance, and more

Molecular Horticulture
ORANGE (OR) family proteins are DnaJE1 molecular chaperones ubiquitous and highly conserved in all plant species, indicating their important roles in plant growth and development.
Emalee Wrightstone, Lilin Xu, Sombir Rao, Abhijit Hazra, Li Li   +4 more
doaj   +1 more source