Leukemia Inhibitory Factor, Recombinant, Human (LIF, Cholinergic Differentiation Factor, CDF, DIA, Differentiation-stimulating Factor, D Factor, HILDA, Melanoma-derived LPL Inhibitor, MLPLI)

Leukemia inhibitory factor, also known as LIF, is a pleiotropic cytokine that is expressed by a wide variety of cells including activated T lymphocytes, monocytes, mast cells and neuronal cells. It is involved in the induction of hematopoietic differentiation in normal and myeloid leukemia cells, induction of neuronal cell differentiation, regulator of mesenchymal to epithelial conversion during kidney development, and may also have a role in immune tolerance at the maternal-fetal interface.\n\nRecombinant protein corresponding to aa23-202 of human LIF protein, fused to His GST-tag at N-terminus, expressed in E.coli.\n\nAA Sequence:\nMHHHHHHMSP ILGYWKIKGL VQPTRLLLEY LEEKYEEHLY ERDEGDKWRN KKFELGLEFP NLPYYIDGDV KLTQSMAIIR YIADKHNMLG GCPKERAEIS MLEGAVLDIR YGVSRIAYSK DFETLKVDFL SKLPEMLKMF EDRLCHKTYL NGDHVTHPDF MLYDALDVVL YMDPMCLDAF PKLVCFKKRI EAIPQIDKYL KSSKYIAWPL QGWQATFGGG DHPPKSDLVP RGSHMSPLPI TPVNATCAIR HPCHNNLMNQ IRSQLAQLNG SANALFILYY TAQGEPFPNN LDKLCGPNVT DFPPFHANGT EKAKLVELYR IVVYLGTSLG NITRDQKILN PSALSLHSKL NATADILRGL LSNVLCRLCS KYHVGHVDVT YGPDTSGKDV FQKKKLGCQL LGKYKQIIAV LAQAF\n\nMolecular Weight: 47.2kD (415aa) confirmed by MALDI-TOF\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 6 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

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SPECIFICATIONS

Catalog Number

L2040-11A

Size

50ug

Form

Supplied as a liquid in 20mM Tris-HCl, pH 8.0, 1mM DTT, 50mM sodium chloride, 20% glycerol.

Purity

~90% (SDS-PAGE).

References

1. Gillett N A., et al. (1993) Growth Factors. 9:301-305. 2. Stahl N., et al. (1994) J Neurobiol. 25:1454-1466.

Additional Info

9/16/13 -Changed Storage and Stability: May be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 6 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.\n-DF