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Recombinant Human IL-12 Protein, CF

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Product Details

Summary
Reactivity HuSpecies Glossary
Applications Bioactivity
Format
Carrier-Free

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Recombinant Human IL-12 Protein, CF Summary

Additional Information
HEK293-expressed Version Available!
Details of Functionality
Measured in a cell proliferation assay using PHA-stimulated human T lymphoblasts. Symons, J.A. et al. (1987) in Lymphokines and Interferons, a Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 272. The ED50 for this effect is 0.0100-0.0500 ng/mL.
Source
Spodoptera frugiperda, Sf 21 (baculovirus)-derived human IL-12 protein
Human IL-12 p40
(Ile23-Ser328)
Accession # P29460
Human IL-12 p35
(Arg23-Ser219)
Accession # P29459
N-terminus C-terminus
Accession #
N-terminal Sequence
Ile23 (p40) & Arg23 (p35)
Structure / Form
Disulfide-linked heterodimer
Protein/Peptide Type
Recombinant Proteins
Gene
IL12A
Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Note
<1.0 EU per 1 μg of the protein by the LAL method.

Applications/Dilutions

Dilutions
  • Bioactivity
Theoretical MW
34.7 kDa (p40) & 22.5 kDa (p35).
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
41 kDa (p40) & 29 kDa (p35), reducing conditions
Publications
Read Publications using
219-IL/CF in the following applications:

Packaging, Storage & Formulations

Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS.
Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Reconstitution Instructions
Reconstitute 5 µg vials at 50 µg/mL in sterile PBS. Reconstitute 25 µg or larger vials at 100 µg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Recombinant Human IL-12 Protein, CF

  • CLMF p35
  • CLMF1
  • Cytotoxic lymphocyte maturation factor 35 kDa subunit
  • IL-12 subunit p35
  • IL12
  • IL-12
  • IL-12, subunit p35
  • IL12A
  • interleukin 12, p35
  • interleukin 12A (natural killer cell stimulatory factor 1, cytotoxic lymphocytematuration factor 1, p35)
  • interleukin-12 alpha chain
  • interleukin-12 subunit alpha
  • natural killer cell stimulatory factor 1, 35 kD subunit
  • NF cell stimulatory factor chain 1
  • NK cell stimulatory factor chain 1
  • NKSF1
  • p35

Background

Interleukin 12, also known as natural killer cell stimulatory factor (NKSF) or cytotoxic lymphocyte maturation factor (CLMF), is a pleiotropic cytokine originally identified in the medium of activated human B lymphoblastoid cell lines. The p40 subunit of IL-12 has been shown to have extensive amino acid sequence homology to the extracellular domain of the human IL-6 receptor while the p35 subunit shows distant but significant sequence similarity to IL-6, G-CSF, and chicken MGF. These observations have led to the suggestion that IL-12 might have evolved from a cytokine/soluble receptor complex. Human and murine IL-12 share 70% and 60% amino acid sequence homology in their p40 and p35 subunits, respectively. IL-12 apparently shows species specificity with human IL-12 reportedly showing minimal activity in the murine system.

IL-12 is produced by macrophages and B lymphocytes and has been shown to have multiple effects on T cells and natural killer (NK) cells. These effects include inducing production of IFN-gamma and TNF by resting and activated T and NK cells, synergizing with other IFN-gamma  inducers at both the transcriptional and post-transcriptional levels. This interaction induces IFN-gamma  gene expression, enhancing the cytotoxic activity of resting NK and T cells, inducing and synergizing with IL-2 in the generation of lymphokine-activated killer (LAK) cells, acting as a co-mitogen to stimulate proliferation of resting T cells, and inducing proliferation of activated T and NK cells. Current evidence indicates that IL‑12, produced by macrophages in response to infectious agents, is a central mediator of the cell-mediated immune response by its actions on the development, proliferation, and activities of TH1 cells. In its role as the initiator of cell-mediated immunity, it has been suggested that IL-12 has therapeutic potential as a stimulator of cell-mediated immune responses to microbial pathogens, metastatic cancers, and viral infections such as AIDS.

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Publications for IL-12 (219-IL/CF)(130)

We have publications tested in 5 confirmed species: Human, Mouse, N/A, Primate - Macaca fascicularis (Crab-eating Monkey or Cynomolgus Macaque), Rhesus Macaque.

We have publications tested in 7 applications: Bioassay, CAR-T (Bioassay), Cell Culture, ELISA (Control), ELISA (Specificity Testing), ELISA (Standard), Stimulation.


Filter By Application
Bioassay
(113)
CAR-T (Bioassay)
(1)
Cell Culture
(6)
ELISA (Control)
(1)
ELISA (Specificity Testing)
(1)
ELISA (Standard)
(5)
Stimulation
(1)
All Applications
Filter By Species
Human
(120)
Mouse
(2)
N/A
(1)
Primate - Macaca fascicularis (Crab-eating Monkey or Cynomolgus Macaque)
(1)
Rhesus Macaque
(1)
All Species
Showing Publications 1 - 10 of 130. Show All 130 Publications.
Publications using 219-IL/CF Applications Species
ACH Szeto, ACF Ferreira, J Mannion, PA Clark, M Sivasubram, MWD Heycock, A Crisp, HE Jolin, P Kozik, MD Knolle, ANJ McKenzie An alphavbeta3 integrin checkpoint is critical for efficient TH2 cell cytokine polarization and potentiation of antigen-specific immunity Nature Immunology, 2022-12-22;24(1):123-135. 2022-12-22 [PMID: 36550322] (Bioassay, Human) Bioassay Human
E Cruz-Loren, NP Ramirez, J Lee, S Pandhe, L Wang, J Hernandez-, AM Spivak, V Planelles, T Petersen, MK Jain, ED Martinez, I D'Orso Host Cell Redox Alterations Promote Latent HIV-1 Reactivation through Atypical Transcription Factor Cooperativity Viruses, 2022-10-18;14(10):. 2022-10-18 [PMID: 36298843] (Bioassay, Human) Bioassay Human
AKO Rode, TB Buus, V Mraz, FAH Al-Jaberi, DV Lopez, SL Ford, S Hennen, IP Eliasen, IV Klewe, L Gharehdagh, A Dragan, MM Rosenkilde, A Woetmann, L Skov, N Ødum, CM Bonefeld, M Kongsbak-W, C Geisler Induced Human Regulatory T Cells Express the Glucagon-like Peptide-1 Receptor Cells, 2022-08-19;11(16):. 2022-08-19 [PMID: 36010663] (Stimulation, Human) Stimulation Human
YS Michaels, JM Edgar, MC Major, EL Castle, C Zimmerman, T Yin, A Hagner, C Lau, HH Hsu, MI Ibañez-Rio, LJ Durland, DJHF Knapp, PW Zandstra DLL4 and VCAM1 enhance the emergence of T cell-competent hematopoietic progenitors from human pluripotent stem cells Science Advances, 2022-08-24;8(34):eabn5522. 2022-08-24 [PMID: 36001668] (Bioassay, Human) Bioassay Human
P Sekhri, DK Ledezma, A Shukla, EE Sweeney, R Fernandes The Thermal Dose of Photothermal Therapy Generates Differential Immunogenicity in Human Neuroblastoma Cells Cancers, 2022-03-11;14(6):. 2022-03-11 [PMID: 35326601] (Cell Culture, Human) Cell Culture Human
G Carbotti, B Dozin, S Martini, C Giordano, F Scordamagl, M Croce, G Filaci, S Ferrini, M Fabbi IL-27 Mediates PD-L1 Expression and Release by Human Mesothelioma Cells Cancers, 2021-08-09;13(16):. 2021-08-09 [PMID: 34439164] (Bioassay, Human) Bioassay Human
K Jamal Jame, WJ Gallert, SD Yanik, S Panek, J Kronsbein, D Jungck, A Koch, J Knobloch Biomarkers for Comorbidities Modulate the Activity of T-Cells in COPD International Journal of Molecular Sciences, 2021-07-02;22(13):. 2021-07-02 [PMID: 34281240] (Bioassay, Human) Bioassay Human
M Ogishi, R Yang, C Aytekin, D Langlais, M Bourgey, T Khan, FA Ali, M Rahman, OM Delmonte, M Chrabieh, P Zhang, C Gruber, SJ Pelham, AN Spaan, J Rosain, WT Lei, S Drutman, MD Hellmann, MK Callahan, M Adamow, P Wong, JD Wolchok, G Rao, CS Ma, Y Nakajima, T Yaguchi, K Chamoto, SC Williams, JF Emile, F Rozenberg, MS Glickman, F Rapaport, G Kerner, G Allington, I Tezcan, D Cagdas, FO Hosnut, F Dogu, A Ikinciogul, VK Rao, L Kainulaine, V Béziat, J Bustamante, S Vilarinho, RP Lifton, B Boisson, L Abel, D Bogunovic, N Marr, LD Notarangel, SG Tangye, T Honjo, P Gros, S Boisson-Du, JL Casanova Inherited PD-1 deficiency underlies tuberculosis and autoimmunity in a child Nature Medicine, 2021-06-28;0(0):. 2021-06-28 [PMID: 34183838] (Bioassay, Human) Bioassay Human
ML Chen, X Huang, H Wang, C Hegner, Y Liu, J Shang, A Eliason, H Diao, H Park, B Frey, G Wang, SA Mosure, LA Solt, DJ Kojetin, A Rodriguez-, DA Schady, CT Weaver, ME Pipkin, DD Moore, MS Sundrud CAR directs T cell adaptation to bile acids in the small intestine Nature, 2021-04-07;0(0):. 2021-04-07 [PMID: 33828301] (Bioassay, Mouse) Bioassay Mouse
E Kidzeru, MA Gasper, D Shao, PT Edlefsen, N Lejarcegui, E Havyariman, K Urdahl, S Gantt, H Horton, H Jaspan, A Gervassi Myeloid-derived suppressor cells and their association with vaccine immunogenicity in South African infants Journal of leukocyte biology, 2021-01-21;0(0):. 2021-01-21 [PMID: 33477200] (Bioassay, Human) Bioassay Human
Show All 130 Publications.

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By Jamshed Arslan, Pharm. D., PhD. Colon cancer is responsible for over 600,000 deaths per year worldwide. Colon cancer can be classified into two categories: mismatch repair (MMR)-deficient and MMR-proficient cancers...  Read full blog post.

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What is Ly6G?Ly6G (Lymphocyte antigen 6 complex locus G6D) is a 21-25kD glycosylphosphatidylinositol (GPI)-linked differentiation antigen that is expressed by myeloid-derived cells in a tightly developmentally-regulated manner in the bone marrow. M...  Read full blog post.

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Bioinformatics

Gene Symbol IL12A
Uniprot