• Call +1.858.633.0165 or Fax +1.858.633.0166 or Contact Us

Streptavidin Protein

Scan QR to view Datasheet
Catalog # MBS634333
Unit / Price
  1 mL  /  $585 +1 FREE 8GB USB
Streptavidin protein
Product Name

Streptavidin, Protein

Also Known As

Streptavidin (Cy3)

Research Use Only
For Research Use Only. Not for use in diagnostic procedures.
Streptomyces avidinii
Supplied as a liquid in conjugate stabilizing buffer with 0.05% sodium azide. Conjugated to Cy3.
Preparation and Storage
Store at 4 degree C. Aliquots are stable for at least 8 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Other Notes
Small volumes of Streptavidin protein vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.
Related Product Information for
Streptavidin protein
Streptavidin (MW ~66kD) binds specifically with biotin (244D). It is derived from the bacterium Streptomyces avidinii and bears a remarkable similarity to chicken egg-white avidin both in three-dimensional structure and its ability to bind biotin with extremely high affinity (Kd=10e-15M). It is a tetrameric protein capable of binding up to 4 biotin molecules. Unlike avidin, Streptavidin is non-glycosylated and is essentially neutral in charge, whereas avidin (pH 10.5) is basic at neutral pH. Because of this, streptavidin has considerably less non-specific binding resulting in less background. It has replaced avidin as the reagent of choice for most applications where protein interactions may cause background.
Applications Tested/Suitable for Streptavidin protein
Immunohistochemistry (IHC), Flow Cytometry (FC/FACS), Immunofluorescence (IF)
Application Notes for Streptavidin protein
Suitable for use in Immunofluorescence, Flow Cytometry and Immunohistochemistry.
Dilution: Immunofluorescence: 1:20-1:50
Flow Cytometry: 1:50-1:200
NCBI/Uniprot data below describe general gene information for Streptavidin. It may not necessarily be applicable to this product.
NCBI Accession #
Molecular Weight
NCBI Official Full Name
Protein Family
All of MyBioSource's Products are for scientific laboratory research purposes and are not for diagnostic, therapeutics, prophylactic or in vivo use. Through your purchase, you expressly represent and warrant to MyBioSource that you will properly test and use any Products purchased from MyBioSource in accordance with industry standards. MyBioSource and its authorized distributors reserve the right to refuse to process any order where we reasonably believe that the intended use will fall outside of our acceptable guidelines.
While every efforts were made to ensure the accuracy of the information provided in this datasheet, MyBioSource will not be liable for any omissions or errors contained herein. MyBioSource reserves the right to make changes to this datasheet at any time without prior notice.

It is the responsibility of the customer to report product performance issues to MyBioSource within 30 days of receipt of the product. Please visit our Terms & Conditions page for more information.
Request a Quote

Please fill out the form below and our representative will get back to you shortly.

Contact Us

Please fill out the form below and our representative will get back to you shortly.