3607 Parkway Ln Ste 200 Norcross, Georgia 30092
www.RayBiotech.com | info@raybiotech.com
770-729-2992 | +1-888-494-8555
ISO 13485:2016 cGMP
Streptavidin
Catalog #: 228-11469
Product Description
Specifications
| Size | 10 mg, 100 mg |
| Estimated Lead Time | 2-3 weeks |
| Accession Number | P22629 |
| Expression System | Bacterium Streptomyces avidinii. |
| Format | Sterile Filtered lyophilized powder. |
| Formulation | Lyophilized from a 25mg/ml solution in 10 mM potassium phosphate buffer pH6.5 |
| Activity | The biological activity is 16.8 U/mg, 1 unit binds 1ug biotin |
| Shipping Type | Ambient temperature |
| Storage | -20°C |
Description
Description
The Streptavidin preparation contains an N- and C-terminal shortened variant (core streptavidin) with improved properties concerning homogeneity, solubility, resistance towards proteolytic degradation and accessibility of the biotin binding pocket as compared to native streptavidin. Streptavidin has a molecular weight of 55kDa.
Solubility
Gives a clear solution at 5mg/ml in 0.1M NaCl
Stability & Storage
Storage/Stability
Streptavidin although stable at 4°C for 3 weeks, should be stored desiccated below -18°C. For longer storage in dissolved form add 1mM EDTA and/or 0.02 % NaN3 or pass the solution through a sterile filter.Please prevent freeze-thaw cycles.