Product Details
Synonym
LIF, CDF, DIA, HILDA, MLPLI
Source
Biotinylated Human LIF, His,Avitag (LIF-H82E2) is expressed from human 293 cells (HEK293). It contains AA Ser 23 - Phe 202 (Accession # P15018-1).
Predicted N-terminus: Ser 23
Request for sequenceMolecular Characterization

Other Tags and Version Biotin & Other Labeled Version
This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).
The protein has a calculated MW of 23.4 kDa. The protein migrates as 37-45 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Labeling
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
Protein Ratio
Passed as determined by the HABA assay / binding ELISA.
Purity
>90% as determined by SDS-PAGE.
Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
ACRO Quality Management System
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Data Display
SDS-PAGE

Biotinylated Human LIF, His,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90%.
Bioactivity-ELISA

Immobilized Biotinylated Human LIF, His,Avitag (Cat. No. LIF-H82E2) on SA-coated surface at 1 μg/mL (100 μL/well) can bind Human LIF R, Fc Tag (Cat. No. LIR-H4252) with a linear range of 1-31 ng/mL (QC tested).
Protocol
User Reviews Publish Comment

Background Introduction
Removal of LIF pushes stem cells toward differentiation, but they retain their proliferative potential or pluripotency. Therefore LIF is used in mouse embryonic stem cell culture. It is necessary to maintain the stem cells in an undifferentiated state, however genetic manipulation of embryonic stem cells allows for LIF independent growth, notably overexpression of the gene Nanog. LIF is not required for culture of human embryonic stem cells.
Frontier Progress
- English Name:
Leukemia inhibitory factor
- Category:
- Listed Drugs Count:
0 Details
- Clinical Drugs Count:
2 Details
- Highest R&D Stage:
Phase 2 Clinical



















