Product Details
Synonyms
IL-23 alpha & IL-12 beta
Source
Human IL-23A&IL-12B Heterodimer Protein, premium grade (ILB-H5219) is expressed from human 293 cells (HEK293). It contains AA Ile 23 - Ser 328 (IL-12B) & Arg 20 - Pro 189 (IL-23A) (Accession # P29460-1 (IL-12B) & Q9NPF7-1 (IL-23A)).
Predicted N-terminus: Ile 23
It is produced under our rigorous quality control system that incorporates a comprehensive set of tests including sterility and endotoxin tests. Product performance is carefully validated and tested for compatibility for cell culture use or any other applications in the early preclinical stage. When ready to transition into later clinical phases, we also offer a custom GMP protein service that tailors to your needs. We will work with you to customize and develop a GMP-grade product in accordance with your requests that also meets the requirements for raw and ancillary materials use in cell manufacturing of cell-based therapies.
Request for sequenceMolecular Characterization
This protein carries no "tag".
The protein has a calculated MW of 55.0 kDa. The protein migrates as 19, 43, 49, 58 kDa±3 kDa under reducing (R) condition, and 41, 45, 58, 122 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under non-reducing (NR) condition (SDS-PAGE) due to glycosylation.
Endotoxin
Less than 0.1 EU per μg by the LAL method / rFC method.
Sterility
Negative
Mycoplasma
Negative
Purity
>95% as determined by SDS-PAGE.
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 24 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
ACRO Quality Management System
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Performance Data
SDS-PAGE

Human IL-23A&IL-12B Heterodimer Protein, premium grade on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. 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 Human IL-23A&IL-12B Heterodimer Protein, premium grade (Cat. No. ILB-H5219) is more than 85% and the molecular weight of this protein is around 50-70 kDa verified by SEC-MALS.
Report
Bioactivity-CELL BASE

Human IL-23A&IL-12B Heterodimer Protein, premium grade (Cat. No. ILB-H5219) stimulates Human IL-23 R/IL-12 R beta 1(Luc) HEK293 Reporter Cell. The specific activity of Human IL-23A&IL-12B Heterodimer Protein, premium grade is > 1.80 X 10^3 U/mg (QC tested).
Protocol
Bioactivity-ELISA

Immobilized Human IL-23A&IL-12B Heterodimer Protein, premium grade (Cat. No. ILB-H5219) at 1 μg/mL (100 μL/well) can bind Monoclonal Anti-Human IL23A&IL12B P40 domain Antibody, Human IgG1 with a linear range of 0.02-1 ng/mL (QC tested).
Protocol
Immobilized Human IL-23A&IL-12B Heterodimer Protein, premium grade (Cat. No. ILB-H5219) at 5 μg/mL (100 μL/well) can bind Human IL-12 R beta 1, Fc Tag (Cat. No. ILB-H5255) with a linear range of 0.2-3 ng/mL (Routinely tested).
Protocol
Immobilized Human IL-23A&IL-12B Heterodimer Protein, premium grade (Cat. No. ILB-H5219) at 1 μg/mL (100 μL/well) can bind Mirikizumab with a linear range of 0.1-31 (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



















