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Key Documents

SRP3073

Sigma-Aldrich

IL-12 human

recombinant, expressed in CHO cells, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture

Synonym(s):

CTL maturation factor (TCMF),, Cytotoxic lymphocyte maturation factor (CLMF), NKSF, TSF

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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

potency

≤1.0 ng/mL ED50

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 ... IL12A(3592)

General description

IL-12 (interleukin 12) is produced by activated monocytes/macrophage cells, B lymphocytes and connective tissue type mast cells. Recombinant Human IL-12 is a 75kDa heterodimeric glycoprotein consisting of disulfide-linked 35kDa (p35) and 40kDa (p40) subunits (503 total amino acid residues).

Biochem/physiol Actions

IL-12 (interleukin 12) is a proinflammatory cytokine and plays an important role in protection against pathogens. IL-12 is a potent regulator of cell mediated immune responses and it induces IFN (interferon)-γ production by NK (natural killer) and T cells. Among its biological activities IL-12 promotes the growth and activity of activated NK, CD4+ and CD8+ cells and induces the development of IFN-γ producing Th1 (T helper) cells. Polymorphisms in the IL-12 gene are associated with risk of rheumatoid arthritis. It also exhibits anti-tumor activities by enhancing Th1 adaptive immunity and cytotoxic T lymphocyte functions.

Sequence

p35 Subunit: RNLPVATPDP GMFPCLHHSQ NLLRAVSNML QKARQTLEFY PCTSEEIDHE DITKDKTSTV EACLPLELTK NESCLNSRET SFITNGSCLA SRKTSFMMAL CLSSIYEDLK MYQVEFKTMN AKLLMDPKRQ IFLDQNMLAV IDELMQALNF NSETVPQKSS LEEPDFYKTK IKLCILLHAF RIRAVTIDRV MSYLNAS 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 0.5x PBS, pH 7.2.

Reconstitution

Centrifuge the vial prior to opening. Reconstitute in 1x PBS, pH 7.2-7.4 to a concentration of 0.2 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

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Up-regulation of IL-12 expression in patients with chronic hepatitis B is mediated by the PI3K/Akt pathway.
Wang HW, te al.
Molecular and Cellular Biochemistry, 407, 135-142 (2015)
An absolute and restricted requirement for IL-12 in natural killer cell IFN-gamma production and antiviral defense. Studies of natural killer and T cell responses in contrasting viral infections.
Orange JS and Biron CA
Journal of Immunology, 156, 1138-1142 (1996)
IL-12 induces the production of IFN-gamma by neonatal human CD4 T cells.
Wu CY, et al.
Journal of Immunology, 151, 1938-1949 (1993)
Martin J Page et al.
British journal of haematology, 180(1), 110-117 (2017-11-17)
Inflammation, with its associated inflammatory molecules, is integral to most chronic diseases, including the various cardiovascular diseases. Interleukin 12 (IL12) is one of the inflammatory cytokines that is upregulated during inflammation; however, we know very little about its exact effect
Association between polymorphisms of interleukin 12 and rheumatoid arthritis associated biomarkers in a Chinese population.
Shen L, et al.
Cytokine, 76, 363-367 (2015)

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