Results 41 to 50 of about 3,285,804 (293)
Unraveling the activation mechanism of the potato tuber ADP-glucose pyrophosphorylase. [PDF]
PLoS ONE, 2013 ADP-glucose pyrophosphorylase regulates the synthesis of glycogen in bacteria and of starch in plants. The enzyme from plants is mainly activated by 3-phosphoglycerate and is a heterotetramer comprising two small and two large subunits.
Carlos M Figueroa +6 more
doaj +1 more source
Lectin Pathway Enzyme MASP-2 and Downstream Complement Activation in COVID-19
Journal of Innate Immunity, 2022 Mannose-binding lectin-associated serine protease 2 (MASP-2) is the main activator of the lectin complement pathway and has been suggested to be involved in the pathophysiology of coronavirus disease 2019 (COVID-19).
Maximilian Peter Götz +8 more
doaj +1 more source
An Extended Polyanion Activation Surface in Insulin Degrading Enzyme.
PLoS ONE, 2015 Insulin degrading enzyme (IDE) is believed to be the major enzyme that metabolizes insulin and has been implicated in the degradation of a number of other bioactive peptides, including amyloid beta peptide (Aβ), glucagon, amylin, and atrial natriuretic ...
Eun Suk Song +9 more
doaj +1 more source
Paths reunited: initiation of the classical and lectin pathways of complement activation [PDF]
, 2010 Understanding the structural organisation and mode of action of the initiating complex of the classical pathway of complement activation (C1) has been a central goal in complement biology since its isolation almost 50 years ago.
Schmid, Ralf +9 more
core +1 more source
Covalently bound substrate at the regulatory site triggers allosteric enzyme activation [PDF]
, 2008 The mechanism by which the enzyme pyruvate decarboxylase from yeast is activated allosterically has been elucidated. A total of seven three-dimensional structures of the enzyme, of enzyme variants or of enzyme complexes form two yeast species (three of ...
Steffen Kutter +11 more
core
FEBS Letters, EarlyView.Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi +5 more
wiley +1 more source
Size‐Dependent Ultrasound Activation of Thrombin Catalytic Activity by Mechano‐Nanoswitches
Advanced ScienceIntegrating nanostructures with mechanochemistry significantly boosts drug loading capabilities and sonomechanical drug activation, outperforming traditional polymer systems.
Menghan Xiao +9 more
doaj +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 +4 more
wiley +1 more source
Frontiers in Physiology, 2023 Introduction: The actin regulatory protein, cofilin plays a key signaling role in many cells for numerous cellular responses including in proliferation, development, motility, migration, secretion and growth.
Irene Ramos-Alvarez +3 more
doaj +1 more source
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS 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