Quality
Purity = 90% by SDS-PAGE
Tested for ability to promote attachment and spreading of BHK-21 cells
Found negative for bacteria, fungi, and mycoplasma

Source
Human plasma.Source material tested for hepatitis B antigen and HIV-1 antibody.

Molecular Weight
440 kD (unreduced form)

Preparation and Storage
Stable for three months at 2° to 8°C (lyophilized) or two weeks at -20°C (solubilized). Do not store in frost-free freezer. Avoid multiple freeze-thaws

Handling
Recommended concentration – 1-5 µg/cm2 of growth surface for coating or at 5 µg/ml as a media additive

Formulation
Lyophilized from CAPS buffer containing NaCl and CaCl2, pH 11.0