链霉亲和素(SA)重组蛋白说明书

Recombinant Streptavidin (SA) 

[ PROPERTIES ]

Source: Prokaryotic expression. Host: E. coli

Tags: N-terminal His-Tag

Subcellular Location: Secreted. Purity: >95%

Traits: Freeze-dried powder

Buffer formulation: 20mM Tris, 150mM NaCl, pH8.0, containing 0.01% sarcosyl, 5%Trehalose. Original Concentration: 200µg/mL

Applications: Positive Control; Immunogen; SDS-PAGE; WB. (May be suitable for use in other assays to be determined by the end user.)

Predicted isoelectric point: 6.5

Predicted Molecular Mass: 20.2kDa

Accurate Molecular Mass: 21/84kDa as determined by SDS-PAGE reducing

conditions. Phenomenon explanation:

The possible reasons that the actual band size differs from the predicted are asfollows:

1. Splice variants: Alternative splicing may create different sized proteins from the same gene. 2. Relative charge: The composition of amino acids may affects the charge of the protein. 3. Post-translational modification: Phosphorylation, glycosylation, methylation etc. 4. Post-translation cleavage: Many proteins are synthesized as pro-proteins, and then cleaved to

give the active form. 5. Polymerization of the target protein: Dimerization, multimerization etc.

 [ USAGE ]

Reconstitute in 20mM Tris, 150mM NaCl (pH8.0) to a concentration of 0.1-1.0mg/mL. Do not vortex.

[ STORAGE AND STABILITY ]

Storage: Avoid repeated freeze/thaw cycles. 

Store at 2-8oC for one month. 

Aliquot and store at -80oC for 12 months. 

Stability Test: The thermal stability is described by the loss rate. The loss ratewas determined by accelerated thermal degradation test, that is, incubate theprotein at 37oC for 48h, and no obvious degradation and precipitation wereobserved. The loss rate is less than 5% within the expiration date underappropriate storage condition. 

[ IDENTIFICATION ]

[ IMPORTANT NOTE ]

The kit is designed for in vitro and research use only, we will not be responsible for anyissue if the kit was used in clinical diagnostic or any other procedures.
本产品仅供科研使用。不能用于人和动物治疗等其它临床诊断使用