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189725

Sigma-Aldrich

Avidin, Egg White

Synonyme(s) :

Avidin, Egg White

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About This Item

Numéro CAS:
Numéro MDL:
Code UNSPSC :
41116133
Nomenclature NACRES :
NA.41

Forme

lyophilized solid

Niveau de qualité

Fabricant/nom de marque

Calbiochem®

Conditions de stockage

OK to freeze

Couleur

white

Solubilité

dilute buffer: 5 mg/mL
distilled water: 5 mg/mL

Conditions d'expédition

ambient

Température de stockage

−20°C

Description générale

Avidin is a tetrameric glycoprotein and an anti-nutrient found in the eggs of all oviparous vertebrates. It constitutes 0.05–0.5% of the total protein in hen eggs. Avidin structure contains eight orthogonal antiparallel β-strands, a single disulfide bond, and a carbohydrate side chain.

Application

Avidin, Egg White has been used as a blocking agent in protein-binding assays. It has also been used to form avidin-biotin linkage to conjugate gemcitabine onto microbubbles for drug delivery to in vivo model.

Actions biochimiques/physiologiques

Avidin can be used as a label for antibodies, fluorescent dyes, proteins,, and other molecules of interest to biochemists. The high binding affinity of avidin to biotin (vitamin H) causes the unavailability of biotin to microorganisms, which leads to the inhibition of their proliferation. This feature of avidin contributes to its antimicrobial property and affects biotin absorption in the body, resulting in vitamin B7 deficiency.

Avertissement

Toxicity: Standard Handling (A)

Définition de l'unité

One unit is defined as the amount of avidin that will bind 1 µg D-biotin at pH 8.9.

Reconstitution

Following reconstitution, store in the refrigerator (4°C). Stock solutions are stable for up to 6 months at 4°C. Avoid freeze/thaw cycles.

Informations légales

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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Consulter la Bibliothèque de documents

Visualizing structural changes of egg avidin to thermal and electric field stresses by molecular dynamics simulation
Zhu Y, et al.
LWT--Food Science and Technology, 151, 112139-112139 (2021)
Eric A Berg et al.
Cold Spring Harbor protocols, 2020(7), 099242-099242 (2020-07-03)
This introduction outlines general strategies for labeling proteins, with an emphasis on methods that are used primarily for labeling antibodies. It covers the specific site of modification, cross-linker options, types of labels, and postlabeling cleanup methodology, along with the advantages
Jia-Ling Ruan et al.
International journal of radiation oncology, biology, physics, 109(5), 1472-1482 (2021-03-15)
Chemoradiation therapy is the standard of care in muscle-invasive bladder cancer (MIBC). Although agents such as gemcitabine can enhance tumor radiosensitivity, their side effects can limit patient eligibility and treatment efficacy. This study investigates ultrasound and microbubbles for targeting gemcitabine
Eva Krkavcová et al.
Biology open, 7(4) (2018-03-16)
Avidin is a key egg white antimicrobial protein with strong binding capacity for biotin, an essential growth and immune cell precursor. As such, it is assumed to have a pronounced, though still poorly explored, effect on hatchling phenotype. We tested
Mu A et al.
Nature cell biology, 21(5), 592-602 (2019-04-10)
Inverted formin 2 (INF2) is a member of the formin family of actin assembly factors. Dominant missense mutations in INF2 are linked to two diseases: focal segmental glomerulosclerosis, a kidney disease, and Charcot-Marie-Tooth disease, a neuropathy. All of the disease

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