Results 111 to 120 of about 5,030,666 (315)

Direct observation and quantification of single nanocondensates of the low complexity domain of TDP-43

open access: yesNature Communications
Biomolecular condensates, formed by liquid–liquid phase separation, coordinate key cellular activities. Recent work has revealed the role of sub-micron assemblies, or nanocondensates, in the organisation of a significant portion of the proteome. Here, we
Justin Houx   +4 more
doaj   +1 more source

Spontaneous signal generation by an excitable system for cell migration

open access: yesFrontiers in Cell and Developmental Biology
Eukaryotic cells exhibit random migration in the absence of extracellular directional cues. This random migration acts as basal motility for various migratory responses such as chemotaxis.
Satomi Matsuoka   +8 more
doaj   +1 more source

A mobile endocytic network connects clathrin-independent receptor endocytosis to recycling and promotes T cell activation

open access: yesNature Communications, 2018
Endocytosis of T cell receptors (TCR) and their polarized recycling back to the plasma membrane is crucial for T cell activation; however, the underlying mechanisms remain unclear.
Ewoud B. Compeer   +15 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS 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   +4 more
wiley   +1 more source

Surface plasmon driven atomic migration mediated by molecular monolayer

open access: yesPhotoniX
Highly efficient controlling the individual atomic migration is the basis of the modern atomic manufacturing. Although one-by-one atom migration can be realized precisely by STM technique, such a delicate operation is time consuming and restrictive ...
Qihong Hu   +7 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Single-Molecule-Magnet Behavior and Fluorescence Properties of 8‑Hydroxyquinolinate Derivative-Based Rare-Earth Complexes

open access: yes, 2016
Five tetranuclear rare-earth complexes, [RE4(dbm)4L6(μ3-OH)2] [HL = 5- (4-fluorobenzylidene)-8-hydroxylquinoline; dbm = 1,3-diphenyl-1,3-propanedione; RE = Y (1), Eu (2), Tb (3), Dy (4), Lu (5)], have been synthesized and completely characterized.
Hong-Ling Gao (836220)   +5 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

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

open access: yesFEBS 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   +2 more
wiley   +1 more source

Fluorescence Microscopy Assay to Measure HIV-1 Capsid Uncoating Kinetics in vitro

open access: yesBio-Protocol, 2019
The stability of the HIV-1 capsid and the spatiotemporal control of its disassembly, a process called uncoating, need to be finely tuned for infection to proceed.
Chantal Márquez   +6 more
doaj   +1 more source

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