Streptavidin, lyophilized powder
Streptavidin, lyophilized powder
Invitrogen™

Streptavidin, lyophilized powder

Streptavidin is a bacterially derived biotin-binding protein that reportedly exhibits less nonspecific binding than avidin.Capacity: Binding activity of streptavidin isRead more
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Catalog NumberQuantity
4343011 mg
4343025 mg
Catalog number 434301
Price (EUR)
126,65
Online Exclusive
169,00
Save 42,35 (25%)
Each
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Quantity:
1 mg
Recurring order eligible. Learn more »
Price (EUR)
126,65
Online Exclusive
169,00
Save 42,35 (25%)
Each
Add to cart
Ask our AI about this Product
Streptavidin is a bacterially derived biotin-binding protein that reportedly exhibits less nonspecific binding than avidin.

Capacity: Binding activity of streptavidin is determined to be >11 units per mg protein. One unit of binding activity is defined as that amount of protein which binds 1 μg of biotin (Green, N.M., Biochem. J., 89:599,1963)

Form: Streptavidin is provided in lyophilized form in 10 mM phosphate buffered saline, pH 7.4. Reconstitute with 1 ml of distilled or deionized water.

Storage: Store at 4°C.
For Research Use Only. Not for use in diagnostic procedures.
Specifications
Product TypeStreptavidin Conjugate (fluorescent)
Quantity1 mg
Shipping ConditionWet Ice
ConjugateUnconjugated
FormLyophilized
Unit SizeEach
Contents & Storage
Streptavidin is provided in lyophilized form in 10 mM phosphate buffered saline, pH 7.4. Reconstitute with 1 ml of distilled or deionized water. Store at 4°C.
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Certificates

Lot #Certificate TypeDateCatalog Number(s)
AB392915Certificate of AnalysisApr 15, 2025434302
AC407209Certificate of AnalysisMar 28, 2025434301
AA405451Certificate of AnalysisJan 31, 2025434301
ZJ404884Certificate of AnalysisOct 26, 2024434301
ZI401965Certificate of AnalysisOct 15, 2024434301
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Safety Data Sheets

Product Information

Frequently asked questions (FAQs)

This Streptavidin is a native protein from Streptomyces avidinii, therefore there are no His-tags on it.

Streptavidin is a protein composed of four identical subunits, each containing a high affinity binding site for biotin (K-D = 10 -15 M) . Streptavidin has the same biotin binding properties as avidin, but it has a low isoelectric point (pI=5) and no carbohydrate groups, resulting in low non-specific binding.

Find additional tips, troubleshooting help, and resources within our Protein Assays and Analysis Support Center.

Although we utilize manufacturing methods that minimize the introduction of any contaminants such as RNases, we do not process this product to specifically remove or inactivate RNases and do not test for RNase activity.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

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