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产品信息
优势特色（Features）
- Designed under ISO 9001:2015 and ISO 13485:2016
- Manufactured and QC tested under a GMP compliance factory
- Animal-Free materials
- Beta-lactam materials free
- Batch-to-batch consistency
- Stringent quality control tests
表达区间及表达系统（Source）
GMP Human IL-12 Protein (GMP-L12H23) is expressed from human 293 cells (HEK293). It contains AA Ile 23 - Ser 328 & Arg 23 - Ser 219 (Accession # P29460-1 & P29459-1).
Predicted N-terminus: Ile 23
蛋白结构（Molecular Characterization）
This protein carries no "tag".
The protein has a calculated MW of 58.9 kDa. The protein migrates as 76 kDa±3 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素（Endotoxin）
Less than 10 EU/mg by the LAL method.
宿主蛋白残留（Host Cell Protein）
<0.5 ng/µg of protein tested by ELISA.
宿主核酸残留（Host Cell DNA）
<0.02 ng/μg of protein tested by qPCR.
无菌（Sterility）
The sterility testing was performed by membrane filtration method described in CP<1101>, USP<71> and Eur. Ph. 2.6.1.
支原体（Mycoplasma）
Negative.
纯度（Purity）
>95% as determined by SDS-PAGE.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with protectants.
Contact us for customized product form or formulation.
运输（Shipping）
This product is supplied and shipped with blue ice, please inquire the shipping cost.
存储（Storage）
Upon receipt, store it immediately at -20°C or lower for long term storage.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 5 years in lyophilized state;
- -70°C for 12 months under sterile conditions after reconstitution.
产品数据图
电泳（SDS-PAGE）
GMP Human IL-12 Protein 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).
活性（Bioactivity）-CELL BASE
GMP Human IL-12 Protein (Cat. No. GMP-L12H23) stimulates secretion of IFN-γ by NK-92. The specific activity of GMP Human IL-12 Protein is > 1.00ⅹ10^7 IU/mg, which is calibrated against human IL-12 WHO International Standard (NIBSC code: 95/544) (QC tested).
Protocol
The activity of GMP Human IL-12 Protein (Cat. No. GMP-L12H23) was higher than other competing products.
应用数据（Application Data）
Human PBMCs were cultured with GMP Human IL-2 Protein (ACROBiosystems, Cat. No. GMP-L02H14), GMP Human IL-12 Protein (ACROBiosystems, Cat. No. GMP-L12H23) and GMP Human 4-1BB Ligand Protein (ACROBiosystems, Cat. No. GMP-41LH26), in CelThrea™ GMP T Cell Expansion Medium (ACROBiosystems, Cat. No. GMP-CM3101 & GMP-CM3101-1) for two weeks. The result shows that GMP Human IL-12 Protein (ACROBiosystems) can promote the expansion of these cells with a reasonable cell viability, and can be comparable with the Competitor M IL-12 protein.
Human PBMCs were cultured with GMP Human IL-2 Protein (ACROBiosystems, Cat. No. GMP-L02H14), GMP Human IL-12 Protein (ACROBiosystems, Cat. No. GMP-L12H23) and GMP Human 4-1BB Ligand Protein (ACROBiosystems, Cat. No. GMP-41LH26), in CelThrea™ GMP T Cell Expansion Medium (ACROBiosystems, Cat. No. GMP-CM3101 & GMP-CM3101-1) for two weeks. The result shows that GMP Human IL-12 Protein (ACROBiosystems) can be comparable with the Competitor M IL-12 protein.
稳定性（Stability）
The Cell based assay shows that GMP Human IL-12 Protein (Cat. No. GMP-L12H23) is stable at 37°C for 24 hours.
The Cell based assay shows that GMP Human IL-12 Protein (Cat. No. GMP-L12H23) is stable at 4℃ for 180 days.
The Cell based assay shows that GMP Human IL-12 Protein (Cat. No. GMP-L12H23) is stable after freezing and thawing 3 times.
The Cell based assay shows batch-to-batch consistency between Acro's GMP and PG IL-12.
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背景
Interleukin 12 (IL12) is also known as p70, and is an interleukin that is naturally produced by dendritic cells, macrophages and human B-lymphoblastoid cells (NC-37) in response to antigenic stimulation.IL12 is a heterodimeric cytokine, containing IL-12A (p35) and IL-12B (p40). IL-12 is involved in the differentiation of naive T cells into Th1 cells. It is known as a T cell-stimulating factor, which can stimulate the growth and function of T cells. It stimulates the production of IFN-γ and TNF-α from T cells and NK cells, and reduces IL-4 mediated suppression of IFN-γ. IL-12 plays an important role in the activities of natural killer cells and T lymphocytes. IL-12 also has anti-angiogenic activity, which means it can block the formation of new blood vessels.
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