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LIF Protein, Human

LIF Protein, Human

Catalog Number: UA040023 Reactivity: Human Conjugation: Unconjugated Brand: UA BIOSCIENCE
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Regular price $190.00 USD
Regular price Sale price $190.00 USD
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Product Details

Product Specification


Species Human
Accession P15018
Amino Acid Sequence

Ser23-Phe202

Expression System E.coli
Molecular Weight

19-20kDa (Non-reducing)

Purity

>95%by SDS-PAGE&RP-HPLC

Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag No Tag
Physical Appearance Lyophilized Powder
Storage Buffer

20mM Tris, 200mM NaCl, pH8.0

Reconstitution

Reconstitute at 0.5-1mg/ml according to the size in ultrapure water after rapid centrifugation.

Stability & Storage

· 12 months from date of receipt, lyophilized powder stored at -20 to -80℃.

· 3 months, -20 to -80℃ under sterile conditions after reconstitution.

· 1 week, 2 to 8℃ under sterile conditions after reconstitution.

· Please avoid repeated freeze-thaw cycles.

Background

Leukaemia inhibitory factor (LIF) is produced by many different cell types and has pleiotropic actions. LIF stimulates the differentiation of the macrophage cell line M1, and the proliferation of haematopoietic stem cells. In vivo, it has profound effects on haematopoiesis, particularly in combination with other cytokines such as IL-3, causing increased platelet formation. LIF allows embryonic stem cells to remain in an undifferentiated state and can maintain their proliferation in culture. LIF stimulates synthesis of acute phase proteins by liver cells, increases bone resorption, stimulates differentiation of cholinergic nerves and loss of body fat.

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Bioactivity

Measured in a cell proliferation assay using TF‑1 human erythroleukemic cells.The EC50 for this effect is less than 0.3ng/ml.

SDS-PAGE

2μg(N: non-reducing conditions).

RP-HPLC

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