Human Recombinant LIF (from E. coli)

About this item

LIF is a pleiotrophic factor produced by multiple cell types, including T cells, myelomonocytic lineages, fibroblasts, liver, heart and melanoma. LIF promotes long-term maintenance of embryonic stem cells by suppressing spontaneous differentiation. Other activities include the stimulation of acute phase protein synthesis by hepatocytes, stimulation of differentiation of cholinergic nerves, and suppression of adipogenesis by inhibiting the lipoprotein lipase in adipocytes. While human LIF is active on mouse cells and is widely used in the maintenance of murine ESC to prevent spontaneous differentiation, mouse LIF is not active on human cells due to its inability to bind to the human LIF receptor. Recombinant Human LIF is a 19.6 kDa protein containing 180 amino acids residues, including three disulfide bonds.

Ordering information: For research use only. Not for use in diagnostic or therapeutic procedures.

Specifications

Conjugation:
Unconjugated
Protein Function:
Cytokines and Growth Factors
Protein/Peptide Type:
Recombinant
Source:
E. coli
Species:
Human
Storage Conditions:
Store at –20 °C prior to reconstitution.
Endotoxin Content:
>0.1 ng/μg
Biological Activity:
Biological Activity tests can vary. Please refer to the Product CoA for information.
Form:
Lyophilized
Gene ID:
3976 P15018
Reconstitution Instructions:
Reconstitution instructions can vary. Please refer to the product CoA for info.
Protease-free:
Y
Protein Synonyms:
Leukemia Inhibitory Factor|Differentiation-stimulating factor|D factor|Melanoma-derived LPL inhibitor (MLPLI)
Protein/Peptide Name:
LIF
Purity:
0.98
Molecular Weight:
19.6 kDa
Sequence:
SPLPITPVNA TCAIRHPCHN NLMNQIRSQL AQLNGSANAL FILYYTAQGE PFPNNLDKLC GPNVTDFPPF HANGTEKAKL VELYRIVVYL GTSLGNITRD QKILNPSALS LHSKLNATAD ILRGLLSNVL CRLCSKYHVG HVDVTYGPDT SGKDVFQKKK LGCQLLGKYK QIIAVLAQAF
Endotoxin Level:
Low
Formulation:
Formulation can vary. Please refer to product CoA for information.
Shipping Temperature:
Ambient