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Human IL37b / IL1F7b Protein  pdf  pdf  pdf


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Synonym

IL1F7b,IL37,IL-1RP1

Source

Recombinant Human IL1F7b /IL37b Protein (rh IL1F7b / IL37) Val 46 - Asp 218 (Accession # AAH20637) was produced in E.coli cells at ACROBiosystems.

Molecular Characterization

rh IL1F7b / IL37b is fused with a polyhistidine tag at the N-terminus, and has a calculated MW of 20.3 kDa. The predicted N-terminus is Met. DTT-reduced Protein migrates as 20.3 kDa in SDS-PAGE .

Endotoxin

Less than 1.0 EU per μg of the rh IL1F7b / IL37b by the LAL method.

Purity

>95% as determined by SDS-PAGE.

Formulation

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally Mannitol or Trehalose are added as protectants before lyophilization.

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Reconstitution

See Certificate of Analysis for reconstitution instructions and specific concentrations.

Storage

Avoid repeated freeze-thaw cycles.

No activity loss was observed after storage at:
In lyophilized state for 1 year (4oC); After reconstitution under sterile conditions for 3 months (-70oC).

 

SDS-PAGE


Recombinant Human IL1F7b /IL37b Protein
The purity of rh IL1F7b / IL37b was determined by DTT-reduced (+) SDS-PAGE and staining overnight with Coomassie Blue.
 
 

Background

Interleukin-1 family member 7 (IL1F7b) ,a member of the IL-1 family, is aslo known as interleukin-37, interleukin-1 homolog 4 (IL-1H4), interleukin-1 zeta (IL-1 zeta) and interleukin-1-related protein, which can interact with SMAD3 and bind to IL18R1, but not to IL1R1, with lower affinity than IL18. IL1F7b is a suppressor of innate inflammatory and immune responses involved in curbing excessive inflammation. This function requires SMAD3. Therefore,IL1F7b can suppress, or reduce, proinflammatory cytokine production, including IL1A and IL6, as well as CCL12, CSF1, CSF2, CXCL13, IL1B, IL23A and IL1RN, but spare anti-inflammatory cytokines. Furthermore,IL1F7b can also inhibit dendritic cell activation.

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References

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