Specification Sheet
Product Name IGF-Binding Protein-5 human,
recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), cell culture tested
Product Number SRP3068
Product Brand SIGMA
 
TEST SPECIFICATION
Appearance lyophilized powder
Color white to off-white
Purity by SDS-Page >=98%
Purity by HPLC >=98%
Endotoxin Level <= 1 EU/ug
Biological Activity Determined by its ability to inhibit IGF-II induced proliferation of MCF-7. The expected ED50 is <= 0.3 ug/ml in the presence of 15 ng/ml of human IGF-II.