Results 41 to 50 of about 437,074 (308)

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS 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   +3 more
wiley   +1 more source

Simple, Directional cDNA Cloning for In Situ Transcript Hybridization Screens

open access: yesBioTechniques, 2001
Here, we describe a suppression PCR-based method for directional cloning of randomly primed cDNAs from small quantities of tissue. Synthesis of the first cDNA strand is conducted on oligonucleotide-coated magnetic beads. Synthesis of the second strand is
R. Tamme   +4 more
doaj   +1 more source

Parasites, Drugs and Captivity: Blastocystis-Microbiome Associations in Captive Water Voles

open access: yesBiology, 2021
(1) Background: Blastocystis is a microbial eukaryote inhabiting the gastrointestinal tract of a broad range of animals including humans. Several studies have shown that the organism is associated with specific microbial profiles and bacterial taxa that ...
Emma L. Betts   +11 more
doaj   +1 more source

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

open access: yesFEBS 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   +6 more
wiley   +1 more source

Molecular Identification of tw5: Vps52 Promotes Pluripotential Cell Differentiation through Cell–Cell Interactions

open access: yesCell Reports, 2012
After implantation, pluripotent epiblasts are converted to embryonic ectoderm through cell–cell interactions that significantly change the transcriptional and epigenetic networks.
Michihiko Sugimoto   +10 more
doaj   +1 more source

Identification of genes involved in xylose metabolism of Meyerozyma guilliermondii and their genetic engineering for increased xylitol production

open access: yesAMB Express, 2020
Meyerozyma guilliermondii, a non-conventional yeast that naturally assimilates xylose, is considered as a candidate for biotechnological production of the sugar alternative xylitol. Because the genes of the xylose metabolism were yet unknown, all efforts
Denise Atzmüller   +2 more
doaj   +1 more source

Molecular cloning of integrated simian sarcoma virus: genome organization of infectious DNA clones. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1981
The integrated form of simian sarcoma virus (SSV) was molecularly cloned in the Charon 16A strain of bacteriophage lambda. In transfection analysis, the recombinant viral DNAs demonstrated the ability to transform cells in tissue culture at high efficiency.
K C, Robbins, S G, Devare, S A, Aaronson
openaire   +2 more sources

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

open access: yesFEBS 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   +3 more
wiley   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

Implicaciones éticas de la transgénesis y la clonación Ethic implications of transgenesis and cloning

open access: yesHumanidades Médicas, 2003
La biotecnología, aunque tan antigua como la invención del vino y la fermentación de la cerveza por el hombre, tiene en los años 60 del siglo XX, un importante despegue con las técnicas de biología molecular y clonaje de genes foráneos en organismos ...
Ayní Rodríguez Pargas   +3 more
doaj  

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