Results 61 to 70 of about 6,522,900 (275)

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Salmonella enterica in semi-aquatic turtles in Colombia

Journal of Infection in Developing Countries, 2011
Introduction: Turtles can be hosts of Salmonella enterica serovars which can cause disease both in the animals themselves and in people they come into contact with, especially when the turtles are kept as pets.
Miryan Margot Sánchez-Jiménez, Paula Andrea Rincón-Ruiz, Sara Duque, María Adelaida Giraldo, Diber Marcela Ramírez-Monroy, Gloria Jaramillo, Nora Cardona-Castro   +6 more
doaj   +1 more source

Characterisation of Nanocellulose Types Using Complementary Techniques and Its Application to Detecting Bacterial Nanocellulose in Food Products

Nanomaterials
Nanocellulose has attracted significant attention in recent years due to its distinctive properties and vast potential applications across various fields. This study encompasses two distinct yet interconnected activities: the characterisation of eight different types of nanocellulose test materials, including crystalline, fibrillated, and bacterial ...
Otmar Geiss, Ivana Bianchi, Ivana Blazevic, Guillaume Bucher, Hind El-Hadri, Francesco Fumagalli, Jessica Ponti, Chiara Verra, Josefa Barrero-Moreno   +8 more
openaire   +3 more sources

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Antimicrobial resistance profiles of Escherichia coli based on molecular typing and public health prevention and control strategy

陆军军医大学学报
Objective The pathogenic characteristics of Escherichia coli (E.coli) in bacterial infections were analyzed using a combination of multiple molecular typing techniques in order to provide evidence for the management of clinical medication safety ...
ZONG Hua, ZONG Hua, LI Caiyun, LI Caiyun
doaj   +1 more source

Caracterización molecular de un brote por Klebsiella pneumoniae productora de CTX-M-12 en la unidad de cuidado intensivo neonatal de un hospital colombiano

Biomédica: revista del Instituto Nacional de Salud, 2006
Introducción. La caracterización molecular de cepas de Klebsiella pneumoniae es una herramienta que contribuye a disminuir la diseminación de la resistencia y al control de las infecciones nosocomiales causadas por este patógeno. Objetivo.
José Ramón Mantilla, María Teresa Reguero, Elsa Beatriz González, Ibonne Ayde García, Aura Lucía Leal, Paula Andrea Espinal, Celia Alpuche, Ismael Alberto Valderrama, Martha Isabel Garzón, Narda María Olarte   +9 more
doaj   +1 more source

Does dental material type influence bacterial adhesion under the same polishing conditions? Direct observation using a fluorescent staining technique: An <i>in vitro</i> study

Dental Materials Journal
Highly polished 3, 4, and 5 mol% yttria-stabilized zirconia and CAD/CAM composite resin samples were prepared, and the influence of surface roughness (Ra and Sa, 21 areas/group), wettability (contact angle and surface energy, 3 samples/group), and surface chemical composition (2 samples/group) on single-strain bacterial adhesion models (Porphyromonas ...
TONPRASONG, Watcharapong, INOKOSHI, Masanao, TAMURA, Muneaki, YOSHIHARA, Kumiko, TAKAHASHI, Rena, NOZAKI, Kosuke, WADA, Takahiro, MINAKUCHI, Shunsuke   +7 more
openaire   +2 more sources

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Bacteriological and molecular identification of Bartonella species in cats from different regions of China. [PDF]

PLoS Neglected Tropical Diseases, 2011
With the improvements in diagnostic techniques, Bartonella henselae (B. henselae) infection has recently been recognized to cause a widening spectrum of diseases. Cats are the natural reservoir hosts of B. henselae.
Congli Yuan, Caixia Zhu, Yanbing Wu, Xueying Pan, Xiuguo Hua   +4 more
doaj   +1 more source

Comparison of Types of Etanol Solvents, Antibacterial Test Methods, and Bacterial Inoculation Techniques used to Determine The Antibacterial Activity of Turmeric Rhizome Ethanol Extract Against Escherichia coli

BERKALA SAINSTEK
Turmeric is a plant that has antibacterial properties due to the curcumin content in plant parts such as rhizomes. Antibacterial testing of plant extracts is influenced by several factors. This study aims to determine the effect of the type of ethanol solvents, antibacterial test methods, and inoculation techniques used on the antibacterial activity of
Endang Soesetyaningsih, null Azizah
openaire   +1 more source