Thermo Scientific™ NeutrAvidin Protein

Catalog Number	Mfr. No.	Description
PI31000	Thermo Scientific™ 31000	10mg; Unlabeled	10mg; Unlabeled
PI31050	Thermo Scientific™ 31050	100mg; Unlabeled	100mg; Unlabeled
PI31055	Thermo Scientific™ 31055	1000mg; Unlabeled	1000mg; Unlabeled

Description

NeutrAvidin Protein is deglycosylated native avidin from egg whites. Removal of the excess carbohydrate by an exclusive process yields a protein with a more neutral isoelectric point and less nonspecific binding properties. Purified and conjugated forms of NeutrAvidin Protein provide exceptional performance in Western blot, ELISA and IHC applications that require biotin-binding probes. Assay specificity, sensitivity, and signal-to-noise ratios with NeutrAvidin Protein are generally equivalent or better than with the significantly more expensive streptavidin. Avidin is a glycoprotein found in the egg white and tissues of birds, reptiles and amphibia. The biotin-binding protein contains four identical subunits having a combined mass of 67,000-68,000 daltons. Removing the glycosylation from avidin yields NeutrAvidin Protein with a mass of 60,000 daltons. Carbohydrate-based lectin-binding is reduced to undetectable levels, yet biotin-binding affinity is retained. NeutrAvidin Protein offers the advantages of a neutral pI to minimize nonspecific adsorption, along with lysine residues that remain available for derivatization or other customized conjugation. NeutrAvidin Protein yields the lowest nonspecific binding among the known biotin binding proteins. The specific activity for biotin-binding is approximately 14μg/mg of protein, which is near the theoretical maximum activity.

Specifications

• Content And Storage: Upon receipt store product 4°C. Product is shipped at ambient temperature.
• Protein Family: Avidin
• Label or Dye: Unlabeled

• Form: Solid
• Target Molecule: Biotin

For Research Use Only. Not for use in diagnostic procedures.