SRP3074
IL-12p40 human
recombinant, expressed in CHO cells, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture
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About This Item
UNSPSC Code:
12352202
NACRES:
NA.32
biological source
human
recombinant
expressed in CHO cells
Assay
≥98% (HPLC)
≥98% (SDS-PAGE)
form
lyophilized
mol wt
40 kDa
packaging
pkg of 10 μg
technique(s)
cell culture | mammalian: suitable
impurities
<0.1 EU/μg endotoxin, tested
color
white to off-white
UniProt accession no.
shipped in
wet ice
storage temp.
−20°C
Gene Information
human ... IL12B(3593)
General description
IL-12 is a disulfide-linked heterodimeric protein (p70), composed of two subunits, p35 and p40, which are encoded by two different genes. Accumulating data indicate that p40 secretion precedes that of IL-12 expression. In addition, to its ability to covalently bind to p35 to form IL-12, p40 can bind to p19 to form IL-23. Recombinant human IL-12 p40 is a 40.0 kDa protein containing 306 amino acid residues.
The interleukin-12 subunit β (IL12β) gene is localized on human chromosome 5q31–33. The encoded protein is part of IL-12, which is a heterodimer. It is mainly expressed by antigen-presenting cells (APCs).
Biochem/physiol Actions
IL-12 is a disulfide-linked heterodimeric protein (p70), composed of two subunits, p35 and p40, which are encoded by two different genes. Recombinant human IL-12 p40 is a 40.0 kDa protein containing 306 amino acid residues.
Interleukin-12 subunit β (IL12β) is an immunoregulatory cytokine. It is involved in pathogenic defense responses and is also suggested as an anticancer therapeutic agent. IL12B is responsible for polarizing naive CD4+ cells toward a TH1 (T helper) phenotype and inducing IFN-γ (interferon) secretion by T and natural killer (NK) cells. This protein also stimulates the differentiation of cytotoxic CD8+ cells and enhances the activity of NK cells. IL12B is linked with many autoimmune diseases, such as psoriasis, systemic lupus erythematosus, Crohn′s disease and ulcerative colitis.
Sequence
p40 Subunit: IWELKKDVYV VELDWYPDAP GEMVVLTCDT PEEDGITWTL DQSSEVLGSG KTLTIQVKEF GDAGQYTCHK GGEVLSHSLL LLHKKEDGIW STDILKDQKE PKNKTFLRCE AKNYSGRFTC WWLTTISTDL TFSVKSSRGS SDPQGVTCGA ATLSAERVRG DNKEYEYSVE CQEDSACPAA EESLPIEVMV DAVHKLKYEN YTSSFFIRDI IKPDPPKNLQ LKPLKNSRQV EVSWEYPDTW STPHSYFSLT FCVQVQGKSK REKKDRVFTD KTSATVICRK NASISVRAQD RYYSSSWSEW ASVPCS
Physical form
Lyophilized from 1x PBS, pH 7.2.
Reconstitution
Centrifuge the vial prior to opening. Reconstitute in 1x PBS, pH 7.2 to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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Li Zhang et al.
PloS one, 10(6), e0130982-e0130982 (2015-06-24)
This study aims to determine whether the genetic polymorphisms of IL-12B gene is a susceptibility factor to Ankylosing spondylitis (AS) in mainland Han Chinese population. Eight single-nucleotide polymorphisms (SNPs) (rs10045431, rs11167764, rs3212227, rs6556412, rs6556416, rs6871626, rs6887695 and rs7709212) in the
Interleukin-12 Immunomodulation Delays the Onset of Lethal Peritoneal Disease of Ovarian Cancer.
Cohen CA, et al.
Journal of Interferon & Cytokine Research, 36(1), 62-73 (2016)
High Interleukin-12 Levels May Prevent an Increase in the Amount of Fungi in the Gastrointestinal Tract during the First Years of Diabetes Mellitus Type 1.
Kowalewska B, et al.
Disease Markers (2016)
M B Atkins et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 3(3), 409-417 (1997-03-01)
A Phase I dose escalation trial of i.v. administered recombinant human interleukin 12 (rhIL-12) was performed to determine its toxicity, maximum tolerated dose (MTD), pharmacokinetics, and biological and potential antineoplastic effects. Cohorts of four to six patients with advanced cancer
M K Gately et al.
Journal of immunology (Baltimore, Md. : 1950), 147(3), 874-882 (1991-08-01)
IL-12 is a heterodimeric cytokine that was identified on the basis of its ability to synergize with IL-2 in the induction of cytotoxic effector cells and was originally called cytotoxic lymphocyte maturation factor (CLMF). IL-12 was also found to stimulate
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