Product Details
Synonyms
IL-23 alpha & IL-12 beta
Source
Rabbit IL23A & IL12B Heterodimer Protein, His Tag&Tag Free (ILB-R52W4) is expressed from human 293 cells (HEK293). It contains AA Arg 20 - Pro 191 & Ile 23 - Asn 324 (Accession # XP_002711125.1 & XP_002710393.1).
Predicted N-terminus: Arg 20 & Ile 23
Request for sequenceMolecular Characterization

Other Tags and Version Biotin & Other Labeled Version
Rabbit IL23A & IL12B Heterodimer Protein, His Tag&Tag Free, produced by co-expression of IL23A and IL12B, has a calculated MW of 21.0 kDa (IL23A) and 34.7 kDa (IL12B). Subunit IL-23A is fused with a polyhistidine tag at the C-terminus and subunit IL-12B contains no tag. The protein migrates as 23-24 kDa and 40-50 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
The protein is designed as a heterodimer.
Purity
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
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Performance Data
SDS-PAGE

Rabbit IL23A & IL12B Heterodimer Protein, His Tag&Tag Free on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
SEC-MALS

The purity of Rabbit IL23A & IL12B Heterodimer Protein, His Tag&Tag Free (Cat. No. ILB-R52W4) is more than 90% and the molecular weight of this protein is around 55-75 kDa verified by SEC-MALS.
Report
Bioactivity-ELISA

Immobilized Human IL-23 R, Fc Tag (Cat. No. ILR-H5254) at 5 μg/mL (100 μL/well) can bind Rabbit IL23A & IL12B Heterodimer Protein, His Tag&Tag Free (Cat. No. ILB-R52W4) with a linear range of 1-39 ng/mL (QC tested).
Protocol
Immobilized Human IL-12 R beta 1, Fc Tag (Cat. No. ILB-H5255) at 5 μg/mL (100 μL/well) can bind Rabbit IL23A & IL12B Heterodimer Protein, His Tag&Tag Free (Cat. No. ILB-R52W4) with a linear range of 0.002-0.156 μg/mL (Routinely tested).
Protocol
Bioactivity-SPR

Biotinylated Human IL-23 R, Fc,Avitag (Cat. No. ILR-H82F3) captured on Protein A Chip can bind Rabbit IL23A & IL12B Heterodimer Protein, His Tag&Tag Free (Cat. No. ILB-R52W4) with an affinity constant of 3.47 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Protocol
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Background
Recent Advances
- English Name:
Interleukin-12 subunit beta
- Category:
- Approved Drugs:
7 Details
- Drugs in Clinical Trials:
2 Details
- Highest Development Stage:
Approved



















