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Key Documents

06-503-I

Sigma-Aldrich

Anti-Caspase 1 Antibody

from rabbit, purified by affinity chromatography

Synonym(s):

Caspase-1, CASP-1, Interleukin-1 beta convertase, IL-1BC, Interleukin-1 beta-converting enzyme, ICE, IL-1 beta-converting enzyme, p45

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

rabbit

Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

purified by

affinity chromatography

species reactivity

human

technique(s)

immunohistochemistry: suitable (paraffin)
western blot: suitable

NCBI accession no.

UniProt accession no.

shipped in

wet ice

target post-translational modification

unmodified

Gene Information

human ... CASP1(834)

General description

Caspase-1, also known as IL-1 beta-converting enzyme (ICE), is an enzyme that cleaves the inflammatory cytokines IL-1 beta and IL-18, releasing the mature, active peptides. Caspase-1 is important for defense against pathogens and it also is involved in the induction of apoptosis. Thymocytes from caspase-1 deficient mice are resistant to Fas-mediated apoptosis, and caspase-1 is similar to the cell death gene CED-3 of C. elegans. Caspase-1 is a heterotetramer that consists of two anti-parallel heterodimers, each one formed by a 20 kDa (p20) and a 10 kDa (p10) subunit. The enzyme has a preferred cleavage site of Tyr-Val-Ala-Asp (YVAD). Caspase-1 is highly expressed in spleen and lung, and is absent from brain.

Specificity

Other homologies: Mouse, rat, canine, porcine and feline. (92% sequence homology).
This antibody recognizes the p20 subunit of Caspase 1. This antibody may cross-react with Caspase 5 due to 92% sequence homology. Additionally, this antibody recognizes the P45 proenzyme (~45 kDa) and the p20 subunit (~20 kDa) of the reduced, human Caspase 1 isoforms.

Immunogen

Epitope: p20 subunit
KLH-conjugated linear peptide corresponding to the p20 subunit of human Caspase 1.

Application

Anti-Caspase 1 Antibody is a highly specific rabbit polyclonal antibody, that targets Caspase 1 & has been tested in western blotting & IHC (Paraffin).
Immunohistochemistry Analysis: A 1:1,000 dilution from a representative lot detected Caspase 1 in human spleen tissue. Additionally, a 1:4,000 dilution from a representative lot detected Caspase 1 in human colon tissue.
Research Sub Category
Caspases

Quality

Evaluated by Western Blotting in THP-1 cell lysate.

Western Blotting Analysis: 5 µg/mL of this antibody detected Caspase 1 in 10 µg THP-1 cell lysate.

Target description

~45 kDa observed. Five isoforms between 10-45 kDa are known to exist. This antibody recognizes the P45 proenzyme (~45 kDa) and the p20 subunit (~20 kDa) of the reduced, human Caspase 1 isoforms.

Linkage

Replaces: 06-503

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

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Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

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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Lung diseases with hypoxia are complicated by pulmonary hypertension, leading to heart failure and death. No pharmacological treatment exists. Increased proinflammatory cytokines are found in hypoxic patients, suggesting an inflammatory pathogenesis. Caspase-1, the effector of the inflammasome, mediates inflammation through

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