Streptavidin, Alexa Fluor™ 405 conjugate
Streptavidin, Alexa Fluor™ 405 conjugate
Invitrogen™

Streptavidin, Alexa Fluor™ 405 conjugate

Our streptavidin, Alexa Fluor 405 conjugate is a bright, photostable probe with excitation/emission maxima of 402 and 421 nm. StreptavidinRead more
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Catalog NumberQuantity
S323511 mg
Catalog number S32351
Price (TWD)
9,730.00
Exklusiv online
Ends: 30-Sep-2025
13,900.00
Save 4,170.00 (30%)
Each
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Quantity:
1 mg
Price (TWD)
9,730.00
Exklusiv online
Ends: 30-Sep-2025
13,900.00
Save 4,170.00 (30%)
Each
Add to cart
Our streptavidin, Alexa Fluor 405 conjugate is a bright, photostable probe with excitation/emission maxima of 402 and 421 nm. Streptavidin is a nonglycosylated biotin-binding protein that is isolated from bacteria and has a near-neutral isoelectric point. It is widely used to detect biotinylated probes, because it reportedly exhibits less nonspecific binding than does the glycosylated, biotin-binding protein, avidin.

View a selection guide for all Alexa Fluor™ streptavidin and avidin conjugates.
For Research Use Only. Not for use in diagnostic procedures.
Specifications
Detection MethodFluorescence
Excitation/Emission402/421
Flow Cytometer Laser Lines405
For Use With (Equipment)Flow Cytometry, Immunoassays, Histochemical Applications, Blot Analysis
Label or DyeAlexa Fluor 405
Product TypeStreptavidin Conjugate (Fluorescent)
Quantity1 mg
Shipping ConditionRoom Temperature
ConjugateAlexa Fluor 405
FormSolid
Product LineAlexa Fluor™
Unit SizeEach
Contents & Storage
Contains 1 vial of streptavidin Alexa Fluor™ 405 conjugate.

Store in freezer (-5 to -30°C) and protect from light.

Frequently asked questions (FAQs)

I am planning to use a fluorescent streptavidin labeled conjugate. What are the storage conditions and shelf life for the lyophilized powder and reconstituted solution?

In the lyophilized powder form, the fluorescent streptavidin labeled conjugate is stable for six months when stored at -20 degrees C, desiccated, and protected from light. The reconstituted solution is stable for approximately six months when stored at 4 degrees C, protected from light, with the addition of sodium azide to a final concentration of 5 mM or thimerosal to 0.2 mM. For longer storage, we recommend dividing the solution into aliquots and freezing at -20 degrees C, protected from light. Avoid repeated freezing and thawing of the solution.

I am planning to use a fluorescent streptavidin labeled conjugate. How should I prepare the working solution of the conjugate?

The fluorescent streptavidin labeled conjugate solution can be made by dissolving the powder in 0.5-1.0 mL of PBS or other suitable buffer. For details, please refer to page 4 of the "Streptavidin and Fluorescent Conjugates of Streptavidin" manual (https://assets.fishersci.com/TFS-Assets/LSG/manuals/mp00888.pdf).

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