Recombinant Human Interleukin-12 subunit alpha protein (IL12A) (Active)

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Code CSB-AP001811HU
Size $354
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

>97% as determined by SDS-PAGE and HPLC.
Less than 1.0 EU/μg as determined by LAL method.
Measured in a cell proliferation assay using PHA-stimulated human T lymphoblasts. The ED50 for this effect is 0.01-0.05 ng/mL. The specific activity of rHuIL-12 is approximately 1.1 × 104 units/μg, which is calibrated against rHuIL-12 WHO Standard
Target Names
Uniprot No.
Research Area
Alternative Names
CLMF; CLMF p35; CLMF p40; CLMF1; CLMF2; Cytotoxic lymphocyte maturation factor 1, p35; Cytotoxic lymphocyte maturation factor 2; Cytotoxic lymphocyte maturation factor 35 kDa subunit; Cytotoxic lymphocyte maturation factor 40 kDa subunit; IL 12A; IL 2 subunit p40; IL-12 subunit p35; IL-12A; IL-12B; IL12; IL12, p35 subunit; IL12, subunit p40; IL12A; IL12A_HUMAN; IL12B; IL35 subunit; Interleukin 12 alpha chain; Interleukin 12 beta chain; Interleukin 12 subunit beta; Interleukin 12, p40; Interleukin 12A (natural killer cell stimulatory factor 1, cytotoxic lymphocyte maturation factor 1, p35); Interleukin 12B (natural killer cell stimulatory factor 2, cytotoxic lymphocyte maturation factor 2, p40); Interleukin 12B; Interleukin-12 subunit alpha; Natural killer cell stimulatory factor 1, 35 kD subunit; natural killer cell stimulatory factor 2; Natural killer cell stimulatory factor, 40 kD subunit; NF cell stimulatory factor chain 1; NFSK; NK cell stimulatory factor chain 1; NK cell stimulatory factor chain 2; NKSF; NKSF1; NKSF2; P35
Homo sapiens (Human)
Expression Region
Complete Sequence
Mol. Weight
Protein Length
Full Length of Mature Protein
Tag Info
Liquid or Lyophilized powder
0.2 μm filtered PBS, pH 7.4 ,lyophilized
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
5-10 business days
Datasheet & COA
Please contact us to get it.

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Target Background

Cytokine that can act as a growth factor for activated T and NK cells, enhance the lytic activity of NK/lymphokine-activated killer cells, and stimulate the production of IFN-gamma by resting PBMC.
Gene References into Functions
  1. These results suggest that IL-12A rs568408 may contribute to the etiology and symptoms severity of asthma, indicating its usefulness as a predictive and diagnostic biomarker of asthma. PMID: 28600552
  2. Study provides evidence that the AA genotype of IL-12A rs568408 is associated with an increased lung cancer risk among Taiwanese, especially those with smoking habits. PMID: 30396953
  3. IL-35 may have a role in renal involvement in lupus nephritis patients PMID: 29576585
  4. The IL-35 levels in CagA(+) H. pylori-infected participants from peptic ulcer and H. pylori-infected asymptomatic groups were lower than individuals infected with CagA(-) strains. PMID: 29938865
  5. these data demonstrate the expression of IL35 in oral lichen planus lesions PMID: 29633015
  6. IL-12 receptor signalling in keratinocytes initiates a protective transcriptional programme that limits skin inflammation. PMID: 27892456
  7. The present study investigated the relationship of IL35 in patients with immunorelated hemocytopenia (IRH). Serum level of IL35 was decreased in untreated patients with IRH compared with remission patients (P<0.01) and was significantly associated with clinical indexes. PMID: 29257310
  8. IL-35 may be involved in the pathogenesis of Primary biliary cirrhosis. PMID: 29445068
  9. The overall results showed that cancer risk was increased by IL-12A rs568408 (GG versus GA + AA: P = 0.004; G versus A: P = 0.005) and IL-12B rs3212227 (AA versus AC + CC: P = 0.004; CC versus AA + AC: P = 0.03; A versus C: P = 0.007) polymorphisms. However, we failed to detect any significant associations between the IL-12A rs2243115 polymorphism and cancer risk in either the overall or the subgroup analyses. PMID: 28408727
  10. IL-35 is a relatively newly discovered member of the IL-12 family which are unique in structure as they are dimer formed by two subunits; recent findings have shown abnormal expression of IL-35 in inflammatory autoimmune diseases and functional analysis suggested that IL-35 is critical in the onset and development of these diseases. [Review] PMID: 29729445
  11. The results suggest IL12A genotype predict higher risk of death and progression, respectively, in NSCLC patients. PMID: 28807247
  12. IL-35 expression was significantly increased in patients with chronic hepatitis C and was positively correlated with the levels of viral RNA PMID: 28644966
  13. Pancreatic ductal carcinoma cells produce IL35 to recruit monocytes via CCL5 and induce macrophage to promote angiogenesis via expression of CXCL1 and CXCL8. PMID: 28989066
  14. Polymorphisms of IFNL3 rs8099917 and IL12A rs568408 contribute to survival of HD patients, but not as independent factors. PMID: 28525983
  15. The anti-EGFR viroplexes with IL-12 and salmosin genes exhibited the most effective therapeutic efficacy in a mouse tumor model, especially when combined with doxorubicin. PMID: 27191929
  16. baseline serum IL-12 levels were significantly higher in those pediatric hematopoietic stem cell transplantation recipients who did not develop acute graft versus host disease PMID: 27751764
  17. Our data indicated that decreased expression of IL-35 in tumor tissues might contribute to the progression of hepatocellular carcinoma PMID: 27329841
  18. circulating mir-21 and expression of the IL-12p35 gene were observed significantly downregulated in current smokers with CAD. PMID: 27765464
  19. Simultaneous elevated circulating levels of IL-18 and IL-12 increased the event rate after 2 years in Coronary Artery Disease patients, independent of hyperglycemia PMID: 27058587
  20. The study revealed that post-therapeutic recovery of circulating IL-35 concentration might be an independent predictor for effective response to IST in pediatric AA. PMID: 28211781
  21. Epstein Barr Virus miRNAs collectively and specifically suppress release of proinflammatory cytokines such as IL-12, repress differentiation of naive CD4(+) T cells to Th1 cells. PMID: 27621419
  22. assembly-induced folding is key in IL-12 family biogenesis and secretion; the identification of essential disulfide bonds that underlie this process lays the basis for a simplified yet functional IL-12 cytokine PMID: 28325840
  23. The plasma levels of interleukin-35 were significantly higher in the hepatocellular carcinoma patients than the controls. PMID: 27699510
  24. Importantly, treatment of NK cells from HIV-infected patients with IL-12 reversed the multiple defects in binding, granule polarization, perforin content, and perforin release and restored anticryptococcal activity. PMID: 27555306
  25. The results of this case-control study suggest that IL-12A, IL-12B, IL12RB1, IL12RB2 and IL23R make no genetic contribution to the susceptibility of Takayasu arteritis in Chinese populations PMID: 26987707
  26. this study introduces IL-35 as a new treatment for pemphigus PMID: 27855302
  27. suberoylanilide hydroxamic acid significantly inhibited IL-12p40 and IL-23p19 mRNA synthesis and did not change IL-12p35 mRNA transcription. PMID: 27240992
  28. this study shows that IL-12A gene polymorphism contributes to the risk of hepatocellular carcinoma on top of chronic hepatitis C virus infection in Egyptian patients PMID: 27819525
  29. The results suggest that hepatocellular carcinoma (HCC). cell apoptosis was suppressed at least partially through HBx-induced miR-21 by targeting IL-12. PMID: 27571873
  30. These data indicate that increased serum IL-35 could act as a disease activity marker and as a risk factor for esophageal involvement in idiopathic inflammatory myopathies. PMID: 27502600
  31. The results of Expression Quantitative Trait Loci analysis showed that the risk alleles of rs4679868 and rs6441286 were significantly associated with decreased expression of IL12A in lymphoblastoid cell lines derived from individuals of Chinese Han ancestry. These results demonstrated that IL12A is associated with Primary Biliary Cirrhosis in the Chinese Han population. PMID: 27175695
  32. The highest gene transfer ability was achieved by the DTPA-conjugated PEI at the conjugation degree of 0.1 % where the level of IL-12 production increased up to twofold compared with that of the unmodified PEI PMID: 26801817
  33. TLR3 is required to induce full IL-12p70 secretion. PMID: 26956584
  34. Interleukin-12 A rs17810546 was positively associated with celiac disease. PMID: 27043536
  35. Data show that interleukin-35 (Epstein-Barr virus-induced gene 3 (EBI3) and the interleukin-12 Subunit p35 (p35) subunit) levels were significantly elevated in the patients with influenza infection. PMID: 26844658
  36. the functional single nucleotide polymorphism IL-12A rs2243115 GG genotype may increase the risk of rheumatoid arthritis in rheumatoid factor negative patients PMID: 26375522
  37. Low IL12 expression levels are associated with Acute Leukemia. PMID: 26514528
  38. Study indicated that the rs568408 variation in IL-12A gene could influence disease susceptibility, and was associated with the severity of oral lichen planus in our East Chinese cohort. PMID: 25258182
  39. These results for the first time demonstrate a role of Cdk5/p35 in the regulation of cell cycle progression modulated by TGF-beta1. PMID: 26966064
  40. IL-35 was elevated in bone marrow of adult AML patients and this increase was correlated with the clinical stages of malignancy, suggesting that IL-35 is involved in pathogenesis of AML. PMID: 26431888
  41. p41 fragment is also shown to reduce the secretion of interleukin-12 (IL-12/p70) during the subsequent maturation of treated dendritic cells. PMID: 26960148
  42. IL-35 plays a protective role in the pathogenesis of rheumatoid arthritis PMID: 26370008
  43. Findings demonstrate that IL-12 is increased significantly in chronic hepatitis B patients and that viral protein HBx induces IL-12 expression in hepatocytes through the activation of the PI3K/Akt pathway. PMID: 26062743
  44. Serum levels of IL-35 increased in normal pregnancy and decreased in recurrent spontaneous abortion. PMID: 26042836
  45. IL-35 Is Involved in the Pathogenesis of Guillain-Barre Syndrome Through Its Influence on the Function of CD4+ T Cells PMID: 26225474
  46. Elevated circulating IL-35, particularly at early phase, its decrease after treatment initiation, and a positive association between synovial fluid IL-35 and disease activity support an involvement of IL-35 in the pathogenesis of RA. PMID: 26204444
  47. Gene-gene interaction analysis showed that subjects carrying the IL-12A rs568408AG/AA and IL-12B rs3212227AA genotypes had a 2.40-fold increased risk of CRC (OR = 2.40; 95 % CI, 1.14-5.07) PMID: 26104769
  48. the distribution of interleukin (IL)-12 (IL12; 1188A/C), IL17 (A7488G) and IL-23 receptor (IL23R; +2199A/C) gene polymorphisms in patients with alopecia areata, was investigated. PMID: 26017027
  49. Genome-wide association study in an admixed case series reveals IL12A as a new candidate in Behcet disease PMID: 25799145
  50. These results might indicate an important new role for IL-35 as an autocrine growth factor in pancreatic cancer growth. PMID: 25073578

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Subcellular Location
Protein Families
IL-6 superfamily
Database Links

HGNC: 5969

OMIM: 161560

KEGG: hsa:3592

STRING: 9606.ENSP00000303231

UniGene: Hs.673

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