Results 21 to 30 of about 181,989 (171)

Biotin Auxotrophy and Biotin Enhanced Germ Tube Formation in Candida albicans

open access: yesMicroorganisms, 2016
Due to the increased number of immunocompromised patients, infections with the pathogen Candida albicans have significantly increased in recent years. C. albicans transition from yeast to germ tubes is one of the essential factors for virulence.
Nur Ahmad Hussin   +5 more
doaj   +1 more source

Scientific Opinion on Dietary Reference Values for biotin [PDF]

open access: yesEFSA Journal, 2014
Following a request from the European Commission, the Panel on Dietetic Products, Nutrition and Allergies (NDA) derived Dietary Reference Values (DRVs) for biotin.
EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA)
doaj   +1 more source

Determination of Nine Kinds of Vitamin B Components in Healthy Food Vitamin B Tablets by HPLC

open access: yesShipin gongye ke-ji, 2022
Objective: To establish a method for the determination of nine vitamin B components in vitamin B tablets by high performance liquid chromatography-diode array detector (HPLC-DAD). Method: Folic acid was ultrasonically extracted with 0.3% ammonia solution,
Wanqing TAN, Shuling WANG, Riqing GUAN
doaj   +1 more source

Assessing models of force-dependent unbinding rates via infrequent metadynamics [PDF]

open access: yesJ. Chem. Phys. 156, 125102 (2022), 2021
Protein-ligand interactions are crucial for a wide range of physiological processes. Many cellular functions result in these non-covalent `bonds' being mechanically strained, and this can be integral to proper cellular function. Broadly, two classes of force dependence have been observed -- slip bonds, where unbinding rate increases, and catch bonds ...
arxiv   +1 more source

Construction of Orthogonal Modular Proteinaceous Nanovaccine Delivery Vectors Based on mSA-Biotin Binding

open access: yesNanomaterials, 2022
Proteinaceous nanovaccine delivery systems have significantly promoted the development of various high-efficiency vaccines. However, the widely used method of coupling the expression of scaffolds and antigens may result in their structural interference ...
Yixin Shi   +10 more
doaj   +1 more source

An oligofluorene truxene based distributed feedback laser for biosensing applications [PDF]

open access: yes, 2014
The first example of an all-organic oligofluorene truxene based distributed feedback laser for the detection of a specific protein–small molecule interaction is reported.
Al-Hakim   +33 more
core   +1 more source

Overexpression of biotin synthase and biotin ligase is required for efficient generation of sulfur-35 labeled biotin in E. coli

open access: yesBMC Biotechnology, 2010
Background Biotin is an essential enzyme cofactor that acts as a CO2 carrier in carboxylation and decarboxylation reactions. The E. coli genome encodes a biosynthetic pathway that produces biotin from pimeloyl-CoA in four enzymatic steps. The final step,
Prigge Sean T   +2 more
doaj   +1 more source

Media Supplementation with Mannitol and Biotin Enhances Squalene Production of Thraustochytrium ATCC 26185 through Increased Glucose Uptake and Antioxidative Mechanisms

open access: yesMolecules, 2022
Media supplementation with exogenous chemicals is known to stimulate the accumulation of important lipids produced by microalgae and thraustochytrids.
M. Kashif Ali   +4 more
doaj   +1 more source

Dynamic force spectroscopy on multiple bonds: experiments and model [PDF]

open access: yesEurophys. Lett., 81:48001, 2008, 2007
We probe the dynamic strength of multiple biotin-streptavidin adhesion bonds under linear loading using the biomembrane force probe setup for dynamic force spectroscopy. Measured rupture force histograms are compared to results from a master equation model for the stochastic dynamics of bond rupture under load.
arxiv   +1 more source

Entry of Microparticles into Giant Lipid Vesicles by Optical Tweezers [PDF]

open access: yes, 2023
Entry of micro- or nano-sized objects into cells or vesicles made of lipid membranes occur in many processes such as entry of viruses in host cells, microplastics pollution, drug delivery or biomedical imaging. Here, we investigated the microparticle crossing of lipid membranes in giant unilamellar vesicles in the absence of strong binding interactions
arxiv   +1 more source

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