MSDS or COA Application
Thank you for your support and trust in Puxin biology. Please enter the batch number and article number for query
Recombinant%20Streptavidin
Streptavidin, with a molecular weight of about 60 kDa, is a bacterial protein derived from Streptomyces avidinii that binds biotin with high specificity and an affinity constant (Kd) of 10-15M. As a tetrameric protein, it can bind four biotin molecules simultaneously, a function that is highly similar to that of the egg-white derived avidin. However, unlike avidin, streptavidin is a non-glycosylated protein and is largely uncharged, whereas avidin is basic at neutral pH, and the non-specific binding of streptavidin is much lower than that of avidin in comparison, so that the non-specific background of streptavidin is significantly lower for detection. Currently, biotin assays are usually performed with streptavidin instead of avidin. This recombinant expressed streptavidin of Escherichia coli has a purity of ≥ 95% and is suitable for coupling enzyme preparations (e.g. HRP, ALP), fluorescein (e.g. FITC, PE, Alexa Fluor series probes, Dylight series probes), magnetic beads, etc., resulting in the detection of biotin-labeled antibodies, nucleic acids, proteins or other biotin-labeled molecules, and this streptavidin- biotin signal amplification/detection system is commonly used for ELISA, immunohistochemistry, Southern Blot or other DNA/RNA analysis; and purification of biotin-labeled molecules, etc.
Protein A/G/L Recombinant Streptavidin IVD antigen EGF VEGF FGF IGF PDGF-BB
Do you want to learn more about our product?
Try our product selector
Try our product selector
Contact Us
Service Hotline:400-821-3475
Address: 8F, Building A5, Bay Valley Technology Park, Lane 1688, North Guoquan Road, Shanghai
Zip Code:200438
Contact:021-61072066
Oder E-mail:order.PG@bio-techne.com
Inquiry E-mail:info.PG@bio-techne.com
Contact Us

Service Hotline:400-821-3475

Inquiry E-mail:order.PG@bio-techne.com

Inquiry E-mail:info.PG@bio-techne.com

Support E-mail:techsupport.PG@bio-techne.com

Dealer inquiry
BeiJing
ShangHai
ChongQing
JiangSu
ZheJiang
GuangDong
AnHui
TianJin
HeBei
ShanXi
NeiMengGu
LiaoNing
JiLin
HeiLongJiang
FuJian
JiangXi
ShanDong
HeNan
HuBei
HuNan
GuangXi
HaiNan
SiChuan
GuiZhou
YunNan
XiZang
ShanXi
GanSu
QingHai
NingXia
XinJiang
XiangGang
AoMen
TaiWan
Search Results

Delivery

Price Inquiry

Technical Consulting