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SRP3204

Sigma-Aldrich

IL-12 from mouse

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

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

biological source

mouse

recombinant

expressed in CHO cells

assay

≥98% (HPLC)
≥98% (SDS-PAGE)

form

lyophilized

potency

≤0.1 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

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

Gene Information

mouse ... IL12A(16159)

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SRP3204

IL-12 from mouse

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IL-12 human

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SRP3211

IL-4 from mouse

vibrant-m

SRP3207

IL-22 from mouse

assay

≥98% (HPLC), ≥98% (SDS-PAGE)

assay

≥98% (HPLC), ≥98% (SDS-PAGE)

assay

≥98% (HPLC), ≥98% (SDS-PAGE)

assay

≥98% (HPLC), ≥98% (SDS-PAGE)

recombinant

expressed in CHO cells

recombinant

expressed in CHO cells

recombinant

expressed in E. coli

recombinant

expressed in E. coli

technique(s)

cell culture | mammalian: suitable

technique(s)

cell culture | mammalian: suitable

technique(s)

cell culture | mammalian: suitable

technique(s)

cell culture | mammalian: suitable

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

form

lyophilized

form

lyophilized

form

lyophilized

form

lyophilized

General description

IL12 (interleukin 12), a member of IL-12 family, is an immunoregulatory cytokine. It is a heterodimer composed of p40 and p35 subunit linked covalently by disulfide bonds. It has a molecular weight of 70kDa. p40 subunit is copiously produced by phagocytic cells, whereas p35 is produced at low level ubiquitously and constitutively. This cytokine was first recognized in 1989 as a natural killer (NK) cell-stimulatory factor. It is predominantly expressed on antigen-presenting cells (APCs) including dendritic cells (DCs), monocytes, macrophages, and Toll-like receptor induced-B cells.
Recombinant murine IL-12 is a 75.0 kDa heterodimeric glycoprotein consisting of disulfide-linked 35 kDa (p35) and 40 kDa (p40) subunits (506 total amino acid residues).

Biochem/physiol Actions

IL-12 is a potent regulator of cell mediated immune responses and it induces IFN-g production by NK and T cells. Recombinant murine IL-12 is a 75.0 kDa heterodimeric glycoprotein consisting of disulfide-linked 35 kDa (p35) and 40 kDa (p40) subunits (506 total amino acid residues).
IL12 (interleukin 12) is crucial for the maturation of naive T cells into IFNγ (interferon)–producing Th1 (T helper) cells. IL12 mutant mice show higher susceptibility to bacterial infections due to significant reduction in the production of IFNγ. This protein functions as an early pro-inflammatory cytokine during infections. IL12 has potent anti-tumor effects in preclinical studies, which however, have not been reproduced in clinical studies. Studies in mice show that IL12 plays a crucial role in immune response against methicillin-resistant Staphylococcus aureus (MRSA)-mediated lung infection. Mice treated exogenously with IL12 prior to being subjected to MRSA infection show enhanced bacterial clearance and non-fatality.

Sequence

p35 Subunit: RVIPVSGPAR CLSQSRNLLK TTDDMVKTAR EKLKHYSCTA EDIDHEDITR DQTSTLKTCL PLELHKNESC LATRETSSTT RGSCLPPQKT SLMMTLCLGS IYEDLKMYQT EFQAINAALQ NHNHQQIILD KGMLVAIDEL MQSLNHNGET LRQKPPVGEA DPYRVKMKLC ILLHAFSTRV VTINRVMGYL SSA p40 Subunit: MWELEKDVYV VEVDWTPDAP GETVNLTCDT PEEDDITWTS DQRHGVIGSG KTLTITVKEF LDAGQYTCHK GGETLSHSHL LLHKKENGIW STEILKNFKN KTFLKCEAPN YSGRFTCSWL VQRNMDLKFN IKSSSSSPDS RAVTCGMASL SAEKVTLDQR DYEKYSVSCQ EDVTCPTAEE TLPIELALEA RQQNKYENYS TSFFIRDIIK PDPPKNLQMK PLKNSQVEVS WEYPDSWSTP HSYFSLKFFV RIQRKKEKMK ETEEGCNQKG AFLVEKTSTE VQCKGGNVCV QAQDRYYNSS CSKWACVPCR VRS

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 0.1-1.0 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

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Roxana Khazen et al.
The EMBO journal, 40(11), e106658-e106658 (2021-04-16)
Cytotoxic T cells (CTLs) can eliminate tumor cells through the delivery of lethal hits, but the actual efficiency of this process in the tumor microenvironment is unclear. Here, we visualized the capacity of single CTLs to attack tumor cells in
Role of Interleukin-12 in Protection against Pulmonary Infection with Methicillin-Resistant Staphylococcus aureus.
Nguyen QT et al
Antimicrobial Agents and Chemotherapy, 59(10), 6308-6316 (2015)
Marine Cazaux et al.
The Journal of experimental medicine, 216(5), 1038-1049 (2019-04-03)
CAR T cells represent a potentially curative strategy for B cell malignancies. However, the outcome and dynamics of CAR T cell interactions in distinct anatomical sites are poorly understood. Using intravital imaging, we tracked interactions established by anti-CD19 CAR T
New insights into IL-12-mediated tumor suppression.
Tugues S et al
Cell Death and Differentiation, 22(2) , 237-246 (2015)
B Oppmann et al.
Immunity, 13(5), 715-725 (2000-12-15)
A novel sequence discovered in a computational screen appears distantly related to the p35 subunit of IL-12. This factor, which we term p19, shows no biological activity by itself; instead, it combines with the p40 subunit of IL-12 to form

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