LIF2010

Leukemia Inhibitory Factor from mouse

10 µg, mouse recombinant LIF protein, expressed in E. coli, suitable for stem cell culture

• Synonym(s): LIF, Differentiation-stimulating Factor, D Factor, Mouse LIF, Mouse Leukemia Inhibitory Factor, Murine LIF, mLIF
• UNSPSC Code: 12352202
• eCl@ss: 32160405
• NACRES: NA.75

Properties

• biological source: mouse
• Quality Level: 300
• assay: >95% (HPLC and SDS-PAGE)
• form: liquid
• specific activity: ≥1 x 10(E8) U/mg
• manufacturer/tradename: Chemicon^®
• concentration: 10 μg/mL
• technique(s): cell culture | stem cell: suitable
• impurities: <0.1 ng/mg Endotoxin (of LIF)
• input: sample type neural stem cell(s); sample type mesenchymal stem cell(s); sample type: mouse embryonic stem cell(s); sample type hematopoietic stem cell(s); sample type induced pluripotent stem cell(s)
• NCBI accession no.: NM_008501
• UniProt accession no.: P09056
• shipped in: wet ice

Description

Application

RECOMMENDED QC PROTOCOL

M1 Bioassay

1. The M1 bioassay is performed using in vitro semi-solid agar cultures, which contain approximately 100 cells in 1 mL volumes of DME containing 20 % FCS in 0.3% agar.

2. Add 100 μL of sample or mLIF (10(E4) units/mL in 5% FCS in isotonic saline) in two-fold serial dilutions in duplicate to 35 mm petri dishes.

3. Add 100 μL of 5% FCS in isotonic saline to two control slides.

4. Incubate at 37°C in fully humidified atmosphere of 10% CO2 in air for 7 days.

5. Score the number of colonies that show differentiation (note: 50 units is defined as the amount of activity which results in 50% of the colonies being differentiated).

Visit www.esgro-lif.com for additional information

Manufactured by CHEMICON International, Inc. LIF is protected under US Patent nos. 5,187,077, 5,427,925, 5,443,825, 5,750,654 and 6,261,548, European Patent no. 0285 448 and related foreign patents and is not available for resale.

Unit Definition

Specific Activity: where 50 units is defined as the amount of mouse LIF required to induce differentiation in 50% of the M1 colonies in 1 mL agar cultures.

Analysis Note

Specific Activity: The activity of mouse LIF is determined by the ability to induce differentiation of murine M1 myeloid leukemic cells.The minimum detectable concentration of mouse LIF in this assay is 0.5 ng/mL

Tested negative in both aseptic and microplasmic tests.

Legal Information

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 12 - Non Combustible Liquids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable