Results 21 to 30 of about 9,143 (218)

C hb and nag genes drive N,N′-diacetylchitobiose metabolism in probiotic Lacticaseibacillus paracasei

Applied Microbiology and Biotechnology
The persistence of commensal bacteria and administered probiotics in the human gut depends to some extent on their capacity to metabolize diet and host-derived glycans.
Víctor García-Telles, Jimmy E. Becerra, Jesús Rodríguez-Díaz, Vicente Monedero, María J. Yebra   +4 more
doaj   +1 more source

Antimicrobial Resistance in the Aconcagua River, Chile: Prevalence and Characterization of Resistant Bacteria in a Watershed Under High Anthropogenic Contamination Pressure

Antibiotics
Background: Antimicrobial resistance (AMR) is a growing global health concern, driven in part by the environmental release of antimicrobial-resistant bacteria (ARB) and antimicrobial resistance genes (ARGs). Aquatic systems, particularly those exposed to
Nicolás González-Rojas, Diego Lira-Velásquez, Richard Covarrubia-López, Johan Plaza-Sepúlveda, José M. Munita, Mauricio J. Carter, Jorge Olivares-Pacheco   +6 more
doaj   +1 more source

Síndrome de la bolsa de orina púrpura

Revista Cubana de Medicina Militar, 2023
Introducción: El síndrome de la bolsa orina púrpura es una condición llamativa, que rara vez se presenta en la práctica clínica. Aparece en el contexto de infecciones urinarias en ancianos, pluripatológicos, con sonda vesical y factores de riesgo ...
Adriana Yllodo Cristo, Liliana Virgen Leyva Pupo, Emmanuel Zayas Fundora, Beatriz Josefa Franchi, Viviana Cristo Pérez, Oscar Yllodo Hernández   +5 more
doaj  

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Sequence‐Based and Functional Analysis for the Discovery of N‐Glycan Degrading Glycosidases From the Microbial Metagenome of the Infant Gut

MicrobiologyOpen
The role of bacterial glycosyl hydrolases (GHs) in degrading free human milk oligosaccharides is well documented. However, their activity on glycoconjugates is less well known.
Irene Boscá‐Sánchez, Jesús Rodríguez‐Díaz, María J. Yebra   +2 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Determinación de indicadores de contaminación fecal (coliformes fecales) en los tanques de abastecimiento de agua de la Universidad Distrital Francisco José de Caldas Sedes Macarena a y b

Revista Científica, 2011
Esta investigación determinó la calidad del agua proveniente de los tanques de abastecimiento de la Facultad de Ciencias y Educación (sedes Macarena A y B), pertenecientes a la Universidad Distrital.
Miguel D. Poveda O, Héctor E. Beltrán, Gustavo Giraldo   +2 more
doaj   +1 more source

Conservación de bacterias por liofilización en la Colección de Microorganismos CM-EM-UDEA, Medellín, Colombia

Biota Colombiana, 2023
Las colecciones microbianas preservan cepas ex situ con el propósito de mantener los microorganismos viables, puros y estables en el tiempo. Para esto se recomienda preservar idealmente por criopreservación y liofilización.
Maria Paula Quintero Rodríguez , Daniela Montoya Arango , Deisy Cristina Restrepo Posada , Diana Marcela González Gil   +3 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

A whole‐cell hypersensitive biosensor for beta‐lactams based on the AmpR‐AmpC regulatory circuit from the Antarctic Pseudomonas sp. IB20

Microbial Biotechnology
Detecting antibiotic residues is vital to minimize their impact. Yet, existing methods are complex and costly. Biosensors offer an alternative. While many biosensors detect various antibiotics, specific ones for beta‐lactams are lacking.
Sebastián Higuera‐Llantén, Manuel Alcalde‐Rico, Felipe Vasquez‐Ponce, Claudia Ibacache‐Quiroga, Jesús Blazquez, Jorge Olivares‐Pacheco   +5 more
doaj   +1 more source