Results 81 to 90 of about 827,705 (313)

Single-step in vitro reconstitution of the Escherichia coli ribosome mediated by two GTPase factors, EngA and ObgE

open access: yeseLife
When Escherichia coli ribosomes are assembled in vitro, manipulation of incubation temperature and magnesium ion concentration has been an essential procedure, which is a crucial step for the assembly of active large subunits.
Aya Sato   +4 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

Nonergodic complex medium dynamics affecting protein electron transfer [PDF]

open access: yes
The standard description of long-range protein electron transfer anticipates an exponential decay of the reaction rate with the donor-acceptor distance due to decaying tunneling probability.
Dmitry, Matyushov
core   +1 more source

Mapping the molecular and structural specialization of the skin basement membrane for inter-tissue interactions

open access: yesNature Communications, 2021
The basement membrane is located at tissue interfaces, but how it mediates distinct inter-tissue interactions is unclear. Here, the authors systematically define the spatial heterogeneity of skin basement membrane composition and show its functional ...
Ko Tsutsui   +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

NMR RELAXATION METHODS TO DETECT PROTEIN DYNAMICS: EVALUATION OF ACCURACY, IMPROVEMENT OF THE METHODOLOGY, AND ITS APPLICATION [PDF]

open access: yes, 2013
Proteins are dynamic molecules whose ability to undergo conformational changes and fluctuations can impact their biological function, such as enzyme catalysis and substrate recognition. Mutations or perturbations that do not significantly change protein
Myint, Wazo
core  

Chapter 1. Identification of Cellular Protein–Protein Interactions [PDF]

open access: yes, 2020
There are myriad interactions between proteins in the cell. The diversity and dynamics of the interactions make them challenging to chart, and a large variety of methods have been developed to tackle the task.
Sara Bergström Lind   +9 more
core   +1 more source

Granzyme A Stimulates pDCs to Promote Adaptive Immunity via Induction of Type I IFN

open access: yesFrontiers in Immunology, 2019
Granzyme A (GzmA), together with perforin, are well-known for their cytotoxic activity against tumor or virus-infected cells. In addition to this cytotoxic function, GzmA stimulates several immune cell types and induces inflammation in the absence of ...
Kanako Shimizu   +10 more
doaj   +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

Protein folding on the ribosome studied using NMR spectroscopy [PDF]

open access: yes, 2013
NMR spectroscopy is a powerful tool for the investigation of protein folding and misfolding, providing a characterization of molecular structure, dynamics and exchange processes, across a very wide range of timescales and with near atomic resolution.
Christodoulou, J   +9 more
core   +1 more source

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