Results 21 to 30 of about 2,315 (265)

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

Transferencia de metales suelo – planta en el cerro “El Toro”, Huamachuco, Perú

open access: yesManglar, 2019
En la minera informal del cerro “El Toro”, se establecieron tres puntos de muestreo, con la finalidad de determinar las plantas con potencial fitorremediaror, para ello se tomaron muestras de suelo superficial y se recolectaron plantas herbáceas ...
Narda Alarcón, Freddy Peláez
doaj   +1 more source

Proceso de registro y seguimiento de daños morfológicos en metal arqueológico mediante documentación 3D

open access: yesGe-conservación, 2021
Gracias a la revolución tecnológica que vive el campo de la documentación del patrimonio vemos cómo los registros 3D se consolidan como recurso documental y se extienden con infinidad de propósitos, entre ellos los estudios morfométricos.
Alba Fuentes Porto   +3 more
doaj   +1 more source

Metal–metal bonds in biology [PDF]

open access: yesJournal of Inorganic Biochemistry, 2012
Nickel-containing carbon monoxide dehydrogenases, acetyl-CoA synthases, nickel-iron hydrogenases, and diron hydrogenases are distinct metalloenzymes yet they share a number of important characteristics. All are O(2)-sensitive, with active-sites composed of iron and/or nickel ions coordinated primarily by sulfur ligands.
openaire   +2 more sources

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

Aplicación de la nanofiltración y pervaporación en el tratamiento de aguas residuales

open access: yesTecnología en Marcha, 2016
Este trabajo trata sobre la aplicación de las tecnologías de membrana en el tratamiento de las aguas residuales o usadas. Las operaciones de membrana se aplican a numerosos problemas medioambientales como resultado de unas regulaciones más restrictivas ...
M. J. Mora   +2 more
doaj   +2 more sources

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

La terapia fotodinámica promete revolucionar el tratamiento del cáncer

open access: yesTecnociencia Chihuahua, 2023
El cáncer es una de las enfermedades que más afecta a la población mundial. Los tratamientos más aplicados son la cirugía, la radioterapia y la quimioterapia. La quimioterapia consiste en el uso de fármacos para destruir las células cancerosas.
Lucas Verget   +3 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

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