제품상세

Product Name

Stemfactor LIF, Human Recombinant

Catalog Number

03-0016

Size

1mL, 10µg/mL 1mL, 100µg/mL

Purity

Greater than 99% by SDS-PAGE analysis.

Formulation

LIF is supplied as a 0.22µm sterile filtered liquid in PBS containing 1% w/v BSA as carrier.

Storage and Stability

Store LIF at 4°C. Do not freeze. Stable for up to 6 months from date of receipt, when stored as directed.

Concentration

1mL, 10µg/mL (Cat. No. 03-0016) 1mL, 100µg/mL (Cat. No. 03-0016-100)

Source

E. coli

Endotoxin Level

Less than 1 EU/µg of LIF as determined by the LAL method.

Biologic Activity

Human LIF activity is assessed by its ability to induce differentiation of M1 myeloid leukemia cells. The specific activity is 1 × 106units/mL (Cat. No. 03-0016) and 1 × 107units/mL (Cat. No. 03-0016-100), where 50 units is defined as the amount of human LIF required to induce differentiation in 50% of the M1 colonies in 1mL of medium.