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商品編號


CHI-HF-201LIF-C050



品牌


Adipogen



公司


Adipogen



公司分類(lèi)


Proteins



Size

50 ?g

商品信息


More Information



Product Details



Synonyms

Leukemia Inhibitory Factor; Differentiation-stimulating Factor; D Factor; Melanoma-derived LPL Inhibitor; MLPLI; HILDA



Product Type

Protein



Properties



Source/Host

HEK 293 cells



Sequence

Human LIF (aa 23-202) is fused at the C-terminus to a His-tag.



Crossreactivity

Human
Mouse



BIOLOG
ical Activity

Determined by its
ABI
lity to stimulate the proliferation of human TF-1 cells. The expected ED50 is ≤ 0.1 ng/ml, corresponding to a specific activity of ≥ 1 x 10
7
units/mg.



MW

~35kDa (SDS-PAGE)



Purity

≥95% (SDS-PAGE)



Endotoxin Content

<0.01eu mu;g="" purified="" protein="" (lal="" test;="" lonza).="">0.01eu>



Reconstitution

Reconstitute 10?g vial with 100 ?l sterile water to a concentration of 0.1mg/ml.
Reconstitute 50?g vial with 100 ?l sterile water to a concentration of 0.5mg/ml.
Add 1X PBS to the desired protein concentration.



Formulation

Lyophilized from 0.2μm-filtered solution in PBS.



Other Product Data

NCBI reference NP_002300.1: LIF (human)



Shipping and Handling



Shipping

BLUE ICE



Short Term Storage

+4°C



Long Term Storage

-20°C



Handling Advice

After reconstitution, prepare aliquots and store at -20°C.
Avoid freeze/thaw cycles.
PBS containing at least 0.1% BSA should be used for further dilutions.



Use/St
ABI
lity

Stable for at least 1 year after receipt when stored at -20°C.
Working aliquots are stable for up to 3 months when stored at -20°C.



Documents



MSD
S

No



Product Specification Sheet



Datasheet


Download PDF





LIF has the capacity to induce terminal differentiation in leukemic cells. Its activities also include the induction of hematopoietic differentiation in normal and myeloid leukemia cells, the induction of neuronal cell differentiation and the stimulation of acute-phase protein synthesis in hepatocytes. LIF activates JAK & STAT signaling in human embryonic stem (ES) cells, but this pathway does not maintain pluripotency in these cells, which instead rely on FGF2-mediated ERK signaling. By contrast, mouse ES cells can be maintained by LIF-mediated JAK & STAT signaling. LIF binds to a high affinity heterodimeric receptor complex consisting of two proteins: LIF-R α that binds LIF with low affinity and the 130kDa (gp130) subunit that by itself does not bind LIF, but is required for high affinity binding of LIF.