1. Recombinant Proteins
  2. LIF Protein, Human

LIF Protein, Human

Cat. No.: HY-P7049
Handling Instructions

LIF Protein, Human is a lymphoid factor involved in various neural and inflammatory processes such as the acute-phase reaction, tissue damage, and infection.

For research use only. We do not sell to patients.

Protein Expression Service

Recombinant Proteins-MedChemExpress
Size Price Stock Quantity
10 μg $140 In-stock
Estimated Time of Arrival: December 31
50 μg $420 In-stock
Estimated Time of Arrival: December 31
100 μg   Get quote  
250 μg   Get quote  

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  • Technical Parameters

  • Properties

  • Documentation

rHuLIF; Differentiation-stimulating Factor; D factor; MLPLI



E. coli


P15018 (S23-F202)

Gene ID


Molecular Weight

Approximately 19.7 kDa

AA Sequence


Biological Activity
The ED50 is <0.2 ng/mL as measured by TF-I cells, corresponding to a specific activity of >5 × 106 units/mg.

Lyophilized powder.


Lyophilized after extensive dialysis against PBS.

Endotoxin Level

<0.2 EU/μg, determined by LAL method.


It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer. It is recommended to freeze aliquots at -20°C or -80°C for extended storage.


Room temperature in continental US; may vary elsewhere.


Leukemia Inhibitory Factor has been shown to possess a remarkable variety of actions. It releases calcium from bone tissue, and is the differentiation inhibitory factor preventing spontaneous differentiation in normal embryonic stem cells[1]. Leukemia inhibitory factor (LIF) is a neuropoietic cytokine involved in both the neural and immune responses to injury. Its levels are increased in a variety of animal and human inflammatory conditions. Administration of Leukemia Inhibitory Factor can suppress inflammatory signs in some cases, for instance after intratracheal lipopolysaccharide-induced inflammation. Leukemia Inhibitory Factor also increases corticosterone levels via the hypothalamo-pituitary-adrenal axis. Other evidence suggests, that it can also act as a proinflammatory cytokine. Exogenously added Leukemia Inhibitory Factor induces acute phase protein expression and stimulates the production of proinflammatory cytokines and monocyte chemoattractants[2].

  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass   Concentration   Volume   Molecular Weight *
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The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

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LIF Protein, Human
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