CR2 Protein (C-His, Human)

Product Specifications

Abbreviation

CR2

Synonyms

C3DR, CD21, CR, CVID7, SLEB9

Host

HEK 293

Tag

C-His

Endotoxin

< 1.0 EU per μg of the protein as determined by the LAL method

Purity

≥ 95 % as determined by SDS-PAGE. ≥ 95 % as determined by SEC-HPLC.

Bioactivity

Measured by its binding ability in a functional ELISA. Immobilized Human CD21 His (Cat:10811-H08H) at 2 μg/ml (100 μl/well) can bind Human Annexin VI/ANXA6 His (Cat:11161-H08E), Biotinylated, the EC50 of Human Annexin VI/ANXA6 His, Biotinylated is 250-900 ng/mL.

Function

Met1-Arg971

Molecular Weight

The secreted recombinant human CD21 pro form consists of 962 amino acids with the predicted molecular mass of 106 kDa. As a result of glycosylation, the apparent molecular mass of rhCD21 is approximately 110-120 kDa in SDS-PAGE under reducing conditions.