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R&D Systems™ Recombinant Human ST8SIA1 Protein, CF

Extensive quality control produces industry leading bioactivity and lot-to-lot consistency that instills confidence in results and ensures reproducibility.

Manufacturer:  R&D Systems™ 6716GT020

Catalog No. 6716GT020

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Measured by its ability to transfer Neu5Ac from CMP-Neu5Ac to fetuin of fetal calf serum. The specific activity is >15 pmol/min/μg, as measured under the described conditions.


ST8 alpha-2,8-Sialyltransferase 8 A/ST8SIA1/Ganglioside GD3
Enzyme Activity
ST8 alpha-2,8-Sialyltransferase 8A/ST8SIA1
20 µg
Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 6 months from date of receipt, -70°C as supplied. 3 months, -70°C under sterile conditions after opening.
Supplied as a 0.2 µm filtered solution in Tris and NaCl.
M.W. (Observed): 40-60 kDa, reducing conditions; M.W. (theoretical): 36 kDa
>95%, by SDS-PAGE under reducing conditions and visualized by Colloidal Coomassie™ Blue stain (at 5 µg / lane.)
Chinese Hamster Ovary cell line, CHO-derived human ST8 alpha-2,8-Sialyltransferase 8 A/ST8SIA1 protein Tyr49-Ser356, with a C-terminal 6-His tag
<1.0 EU / 1 µg of the protein by the LAL method.
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