PRODUCT SOURCE
Recombinant Human SCF /KITLG Protein,HEK293 expressed,ActiveMax (rh SCF) Glu 26 - His 214 (Accession # AAH69797) was produced in human 293 cells (HEK293) at ACROBiosystems.

MOLECULAR CHARACTERIZATION
rh SIRPG /CD172G Fc Chimera is fused with a human IgG1 Fc tag at the C-terminus, and has a calculated MW of 63.7 kDa. The predicted N-terminus is Glu 29. DTT-reduced Protein migrates as 68-75 kDa in SDS-PAGE due to glycosylation.

BIOLOGICAL ACTIVITY
Determined by the dose-dependent stimulation of the proliferation of human TF-1 cells. The ED50 <5 ng/mL, corresponding to a specific activity of >2X105 Unit/mg.

PURITY
>98% as determined by SDS-PAGE.

ENDOTOXIN
Less than 1.0 EU per μg of the rh SCF by the LAL method.