Key Product Details

Species Reactivity

Validated:

Human

Cited:

Human

Applications

Validated:

Western Blot, Immunocytochemistry

Cited:

Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Goat IgG
View all IL-33 Primary Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant human IL-33 Propeptide
Met1-Ser111
Accession # O95760

Specificity

Detects human IL-33 Propeptide in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with mature recombinant human IL-33 and mature recombinant mouse IL-33 is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Scientific Data Images for Human IL‑33 Propeptide Antibody

Detection of Human IL‑33 Propeptide antibody by Western Blot.

Detection of Human IL‑33 Propeptide by Western Blot.

Western blot shows lysates of Jurkat human acute T cell leukemia cell line, Raji human Burkitt's lymphoma cell line, and K562 human chronic myelogenous leukemia cell line. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human IL-33 Propeptide Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4810) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF019). A specific band was detected for IL-33 Propeptide at approximately 31 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.
IL-33 antibody in HUVEC Human Cells by Immunocytochemistry (ICC).

IL‑33 in HUVEC Human Cells.

IL-33 was detected in immersion fixed HUVEC human umbilical vein endothelial cells using Goat Anti-Human IL-33 Propeptide Antigen Affinity-purified Polyclonal Antibody (Catalog # AF4810) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the Northern-Lights™ 557-conjugated Anti-Goat IgG Secondary Antibody (yellow; Catalog # NL001) and counterstained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Applications for Human IL‑33 Propeptide Antibody

Application
Recommended Usage

Immunocytochemistry

5-15 µg/mL
Sample: Immersion fixed HUVEC human umbilical vein endothelial cells

Western Blot

1 µg/mL
Sample: Jurkat human acute T cell leukemia cell line, Raji human Burkitt's lymphoma cell line, and K562 human chronic myelogenous leukemia cell line

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & 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.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: IL-33

IL-33 (interleukin 33; also NF-HEV and IL-1F11) is a 31-32 kDa member of the IL-1 family of proteins. It is expressed in endothelial cells and reportedly has two functions; first, it induces Th2-type cytokines, and second, it acts as a nuclear transcription factor. Human IL-33 is 270 amino acids (aa) in length. It contains a putative proregion (aa 1-111) and a mature segment (aa 112-270). The proregion contains a bipartite NLS (aa 61-78), plus an  alpha -helical homeodomain-like HTH motif (aa 1-65). The HTH motif mediates nuclear localization and heterochromatin association. A potential caspase 1 cleavage site exists in human IL-33 (Ser111-Ser112), but not in IL-33 from canine, porcine or bovine. There is one splice variant that shows a deletion of aa 113-118. Over aa 1-111, human IL-33 propeptide is 45% aa identical to mouse IL-33 propeptide.

Long Name

Interleukin 33

Alternate Names

C9orf26, DVS27, IL33, NF-HEV

Entrez Gene IDs

90865 (Human); 77125 (Mouse)

Gene Symbol

IL33

UniProt

O95760

Additional IL-33 Products

Product Documents for Human IL‑33 Propeptide Antibody

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Human IL‑33 Propeptide Antibody

For research use only

Citations for Human IL‑33 Propeptide Antibody

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Protocols

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