| Applications: |
ELISA |
| Reactivity: |
Human |
| Note: |
FOR SCIENTIFIC EDUCATIONAL RESEARCH USE ONLY (RUO). MUST NOT BE USED IN DIAGNOSTIC OR OTHER MEDICAL APPLICATIONS. |
| Sensitivity: |
9.38pg/mL |
| Detection Limit: |
15.63~1000pg/mL |
| Short Description: |
This IL33 Sandwich ELISA is an in-vitro enzyme-linked immunosorbent assay for the measurement of samples in human cell culture supernatant, serum and plasma (EDTA, citrate, heparin). |
| Storage Instruction: |
If unopened the kit may be stored at 2-8°C for up to 1 month. If the kit will not be used within 1 month, store the components separately, according to the component table in the manual. |
| Assay Time: |
3.5h |
| Detection: |
Colormetric |
| Gene Symbol: |
IL33 |
| Gene ID: |
90865 |
| Uniprot ID: |
IL33_HUMAN |
| Specificity: |
This kit recognizes Human IL-33 in samples. No significant cross-reactivity or interference between Human IL-33 and analogues was observed. |
| Sample Type: |
Serum, plasma and other biological fluids |
| Post Translational Modifications | The full-length protein can be released from cells and is able to signal via the IL1RL1/ST2 receptor. However, proteolytic processing by CELA1, CSTG/cathepsin G and ELANE/neutrophil elastase produces C-terminal peptides that are more active than the unprocessed full length protein. May also be proteolytically processed by calpains. Proteolytic cleavage mediated by apoptotic caspases including CASP3 and CASP7 results in IL33 inactivation. In vitro proteolytic cleavage by CASP1 was reported but could not be confirmed in vivo suggesting that IL33 is probably not a direct substrate for that caspase. |
| Function | Cytokine that binds to and signals through the IL1RL1/ST2 receptor which in turn activates NF-kappa-B and MAPK signaling pathways in target cells. Involved in the maturation of Th2 cells inducing the secretion of T-helper type 2-associated cytokines. Also involved in activation of mast cells, basophils, eosinophils and natural killer cells. Acts as an enhancer of polarization of alternatively activated macrophages. Acts as a chemoattractant for Th2 cells, and may function as an 'alarmin', that amplifies immune responses during tissue injury. Induces rapid UCP2-dependent mitochondrial rewiring that attenuates the generation of reactive oxygen species and preserves the integrity of Krebs cycle required for persistent production of itaconate and subsequent GATA3-dependent differentiation of inflammation-resolving alternatively activated macrophages. In quiescent endothelia the uncleaved form is constitutively and abundantly expressed, and acts as a chromatin-associated nuclear factor with transcriptional repressor properties, it may sequester nuclear NF-kappaB/RELA, lowering expression of its targets. This form is rapidely lost upon angiogenic or pro-inflammatory activation. |
| Protein Name | Interleukin-33Il-33Interleukin-1 Family Member 11Il-1f11Nuclear Factor From High Endothelial VenulesNf-Hev Cleaved Into - Interleukin-3395-270 - Interleukin-3399-270 - Interleukin-33109-270 |
| Database Links | Reactome: R-HSA-1257604Reactome: R-HSA-5689880Reactome: R-HSA-6811558Reactome: R-HSA-9014843 |
| Cellular Localisation | NucleusChromosomeCytoplasmCytoplasmic VesicleSecretory VesicleSecretedSecreted And Released In The Extracellular Milieu By Passing Through The Gasdermin-D (Gsdmd) Pore Following Cleavage By Cela1Associates With Heterochromatin And Mitotic ChromosomesThe Secretion Is Dependent On Protein Unfolding And Facilitated By The Cargo Receptor Tmed10It Results In Protein Translocation From The Cytoplasm Into The Ergic (Endoplasmic Reticulum-Golgi Intermediate Compartment) Followed By Vesicle Entry And Secretion |
| Alternative ELISA Names | Interleukin-33 ELISA kitIl-33 ELISA kitInterleukin-1 Family Member 11 ELISA kitIl-1f11 ELISA kitNuclear Factor From High Endothelial Venules ELISA kitNf-Hev Cleaved Into - Interleukin-33 ELISA kit95-270 - Interleukin-33 ELISA kit99-270 - Interleukin-33 ELISA kit109-270 ELISA kitIL33 ELISA kitC9orf26 ELISA kitIL1F11 ELISA kitNFHEV ELISA kit |
| Specificity | This kit recognizes Human IL-33 in samples. No significant cross-reactivity or interference between Human IL-33 and analogues was observed. |
| Reproducibility | Both intra-CV and inter-CV are |
Information sourced from Uniprot.org
| Item | Specifications | Storage |
| Micro ELISA Plate (Dismountable) | 96T: 8 wells ×12 strips strips | -20℃, 6 months |
| Reference Standard | 96T: 2 vials 48T: 1 vial | -20℃, 6 months |
| Concentrated Biotinylated Detection Ab (100×) | 96T: 1 vial, 120 μL 60 μL | -20℃, 6 months |
| Concentrated HRP Conjugate (100×) | 96T: 1 vial, 120 μL 60 μL | -20℃ (Protect from light), 6 months |
| Reference Standard & Sample Diluent | 1 vial, 20 mL | 2-8°C, 6 months |
| Biotinylated Detection Ab Diluent | 1 vial, 14 mL | 2-8°C, 6 months |
| HRP Conjugate Diluent | 1 vial, 14 mL | 2-8°C, 6 months |
| Concentrated Wash Buffer (25×) | 1 vial, 30 mL | 2-8°C, 6 months |
| Substrate Reagent | 1 vial, 10 mL | 2-8℃ (Protect from light) |
| Stop Solution | 1 vial, 10 mL | 2-8°C |
| Plate Sealer | 5 pieces | |
| Manual | 1 copy | |
| Certificate of Analysis | 1 copy | |
| Sample Type | Range (%) | Average Recovery (%) |
| Serum(n=8) | 97-108 | 102 |
| EDTA plasma (n=8) | 90-101 | 96 |
| Cell culture media (n=8) | 90-102 | 97 |
| | Intra-assay Precision | Intra-assay Precision | Intra-assay Precision | Inter-assay Precision | Inter-assay Precision | Inter-assay Precision |
| Sample | 1.00 | 2.00 | 3.00 | 1.00 | 2.00 | 3.00 |
| n | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 |
| Mean (pg/mL) | 47.88 | 104.01 | 456.80 | 43.72 | 99.13 | 471.62 |
| Standard deviation | 2.93 | 5.01 | 18.36 | 2.83 | 5.11 | 14.67 |
| CV (%) | 6.12 | 4.82 | 4.02 | 6.47 | 5.15 | 3.11 |
12 months for antibodies. 6 months for ELISA Kits. Please see website T&Cs for further guidance
