rStreptavidin “Full”(159AA) and “Core”(127 AA) Recombinant Streptavidin Host cell : E. coli

Streptavidin is a protein produced by the bacterium Streptomyces avidinii and has
very high affinity for biotin by forming of streptavidin-biotin noncovalent binding.
This product is a highly purified recombinant protein expressed in E.coli.
Two types of Streptavidin “Full” (159 AA) and “Core” (127 AA) are available.

Download Datasheets
Catalog Number Pack Size
Catalog Number 47585900
Pack Size 100 mg, 1g and 10 g
Catalog Number 47586900
Pack Size 100 mg, 1g and 10 g


Streptomyces avidinii
Formula / molecular Weight
16.5 KDa (Full) and 13 KDa(Core)
Product Form
Lyophilized powder
Single Pure band in SDS PAGE analysis
Specific Activity
≧ 13 Units/mg and ≧ 17 Units/mg
Streptavidin-biotin binding is known as one of the most stable noncovalent interactions and is stably maintained over wide range of temperature, pH and denaturing agent. This binding has been widely used in the field of biotechnology such as molecular labeling, immobilization and drug delivery system and has been applied for diagnostic and research test kit. Especially in immunochemical assays, it enables to develop highly sensitive detection system.
Storage Condition
Below - 20 ℃
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