CASP4 Antibody

Cat. No.: HY-P81251: Data Sheet COA
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CASP4 Antibody is a Rabbit-derived and non-conjugated IgG polyclonal antibody, targeting to CASP4.

For research use only. We do not sell to patients.

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10 μL	In-stock	Estimated Time of Arrival: December 31
50 μL	In-stock	Estimated Time of Arrival: December 31
100 μL	In-stock	Estimated Time of Arrival: December 31
250 μL	Get quote

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CASP4 Antibody Featured Recommendations:

WB: Western Blot;
IHC-P: Immunohistochemistry-Paraffin;
IHC-F: Immunohistochemistry-Frozen;
ICC/IF: Immunocytochemistry/Immunofluorescence;
IF-Tissue: Immunofluorescence-Tissue;
mIHC: Multiplex Immunohistochemical;
IP: Immunoprecipitation;
ChIP: Chromatin Immunoprecipitation;
FC: Flow Cytometry;
ELISA: Enzyme Linked Immunosorbent Assay

Product Detail
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Background
Documentation

Description

CASP4 Antibody is a Rabbit-derived and non-conjugated IgG polyclonal antibody, targeting to CASP4.

Host

Rabbit

Clonality

Polyclonal

Molecular Weight

Predicted band size: 43 kDa;

Observed band size: 54 kDa

Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.

Species Reactivity

Human, Rat Predicted Reactivity: Mouse

Note: The predicted reactivity is for reference only and should not be considered a guarantee of product performance.

SwissProt ID

P49662

Gene ID

837 [NCBI]

Immunogen

KLH conjugated synthetic peptide derived from mouse Caspase-4 subunit p10: 251-350/373

Application &
Dilution Ratio

Application	Dilution Ratio
WB WB: Western Blot	1:500-2000
ELISA ELISA: Enzyme Linked Immunosorbent Assay	1:5000-10000

Sensitivity	Endogenous	Purity	Affinity Purified
Conjugation	Non-conjugated	Modification	Unmodified
Isotype	IgG

Appearance

Liquid

Formulation

Supplied in 0.02% Proclin300, Constituents: 1% BSA, 0.01M PBS, pH7.4.

Storage & Stability

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

Shipping

Shipping with blue ice.

Verification Image

Western blot analysis of extracts from THP-1 (lane 1) and Raji (lane 2) and Hela (lane 3) and HepG2 (lane 4) using CASP4 antibody. Proteins were transferred to a PVDF membrane and blocked with 5% nonfat powdered milk in PBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (GAPDH, 1/3000) was diluted with 5% nonfat powdered milk in PBST at 4°C overnight. Goat Anti-Rabbit IgG-HRP Secondary Antibody (1/8,000) was incubated for 45min at room temperature.

Background

Function：Inflammatory caspase that acts as the effector of the non-canonical inflammasome by mediating lipopolysaccharide (LPS)-induced pyroptosis (PubMed:25119034, PubMed:26375003, PubMed:32109412, PubMed:34671164, PubMed:37001519, PubMed:37993712, PubMed:37993714). Also indirectly activates the NLRP3 and NLRP6 inflammasomes (PubMed:23516580, PubMed:26375003, PubMed:32109412, PubMed:7797510). Acts as a thiol protease that cleaves a tetrapeptide after an Asp residue at position P1: catalyzes cleavage of CGAS, GSDMD and IL18 (PubMed:15326478, PubMed:23516580, PubMed:26375003, PubMed:28314590, PubMed:32109412, PubMed:37993712, PubMed:37993714, PubMed:7797510). Effector of the non-canonical inflammasome independently of NLRP3 inflammasome and CASP1: the non-canonical inflammasome promotes pyroptosis through GSDMD cleavage without involving secretion of cytokine IL1B (PubMed:25119034, PubMed:25121752, PubMed:26375003, PubMed:31268602, PubMed:32109412, PubMed:37993712, PubMed:37993714). In the non-canonical inflammasome, CASP4 is activated by direct binding to the lipid A moiety of LPS without the need of an upstream sensor (PubMed:25119034, PubMed:25121752, PubMed:29520027, PubMed:32510692, PubMed:32581219, PubMed:37993712). LPS-binding promotes CASP4 activation and CASP4-mediated cleavage of GSDMD and IL18, followed by IL18 secretion through the GSDMD pore, pyroptosis of infected cells and their extrusion into the gut lumen (PubMed:25119034, PubMed:25121752, PubMed:37993712, PubMed:37993714). Also indirectly promotes secretion of mature cytokines (IL1A and HMGB1) downstream of GSDMD-mediated pyroptosis via activation of the NLRP3 and NLRP6 inflammasomes (PubMed:26375003, PubMed:32109412). Involved in NLRP3-dependent CASP1 activation and IL1B secretion in response to non-canonical activators, such as UVB radiation or cholera enterotoxin (PubMed:22246630, PubMed:23516580, PubMed:24879791, PubMed:25964352, PubMed:26173988, PubMed:26174085, PubMed:26508369). Involved in NLRP6 inflammasome-dependent activation in response to lipoteichoic acid (LTA), a cell-wall component of Gram-positive bacteria, which leads to CASP1 activation and IL1B secretion (PubMed:33377178). Involved in LPS-induced IL6 secretion; this activity may not require caspase enzymatic activity (PubMed:26508369). The non-canonical inflammasome is required for innate immunity to cytosolic, but not vacuolar, bacteria (By similarity). Plays a crucial role in the restriction of S.typhimurium replication in colonic epithelial cells during infection (PubMed:25121752, PubMed:25964352). Activation of the non-canonical inflammasome in brain endothelial cells can lead to excessive pyroptosis, leading to blood-brain barrier breakdown (By similarity). Pyroptosis limits bacterial replication, while cytokine secretion promotes the recruitment and activation of immune cells and triggers mucosal inflammation (PubMed:25121752, PubMed:25964352, PubMed:26375003). May also act as an activator of adaptive immunity in dendritic cells, following activation by oxidized phospholipid 1-palmitoyl-2-arachidonoyl- sn-glycero-3-phosphorylcholine, an oxidized phospholipid (oxPAPC) (By similarity). Involved in cell death induced by endoplasmic reticulum stress and by treatment with cytotoxic APP peptides found in Alzheimer's brains (PubMed:15123740, PubMed:22246630, PubMed:23661706). Cleavage of GSDMD is not strictly dependent on the consensus cleavage site but depends on an exosite interface on CASP4 that recognizes and binds the Gasdermin-D, C-terminal (GSDMD-CT) part (PubMed:32109412). Catalyzes cleavage and maturation of IL18; IL18 processing also depends of the exosite interface on CASP4 (PubMed:15326478, PubMed:37993712, PubMed:37993714). In contrast, it does not directly process IL1B (PubMed:7743998, PubMed:7797510, PubMed:7797592). During non-canonical inflammasome activation, cuts CGAS and may play a role in the regulation of antiviral innate immune activation (PubMed:28314590); (Microbial infection) In response to the Td92 surface protein of the periodontal pathogen T.denticola, activated by cathepsin CTSG which leads to production and secretion of IL1A and pyroptosis of gingival fibroblasts

Subcellular Localization：Cytoplasm, cytosol; Endoplasmic reticulum membrane; Peripheral membrane protein; Cytoplasmic side; Mitochondrion; Inflammasome; Secreted

Expression：
Tissue_specificity:Widely expressed, including in keratinocytes and colonic and small intestinal epithelial cells (at protein level) . Not detected in brain

Induction:In peripheral blood mononuclear cells and purified monocytes, up-regulated by bacterial lipopolysaccharides (LPS) and interferon-beta/IFNB1 at the mRNA level (PubMed:16893518, PubMed:24879791) . However, this increase is not observed at the protein level, which remains constant in monocytes and other cell types following LPS treatment (PubMed:25121752, PubMed:26508369) . In monocyte-derived macrophages, some up-regulation at the protein level is observed following treatment with LPS and IFNB1 (PubMed:25964352) . In SH-EP1 neuroblastoma cell line, up-regulated by NF-kappa-B RELA/p65 at both mRNA and protein levels

Isoforms & Post-Translational Modification：P49662 has 5 isomers: P49662-1: 43262 Da (predicted); P49662-2: 36705 Da (predicted); P49662-3: 13264 Da (predicted); P49662-4: 30000 Da (predicted); P49662-5: 18111 Da (predicted).
In response to activation signals, undergoes autoproteolytic cleavage and activation;(Microbial infection) ADP-riboxanation by S.flexneri OspC3 blocks CASP4 autoprocessing, preventing CASP4 activation and ability to recognize and cleave GSDMD, thereby thwarting the inflammasome/pyroptosis-mediated defense

Subunit：Heterotetramer that consists of two anti-parallel arranged heterodimers, each one formed by a 20 kDa (Caspase-4 subunit p20) and a 10 kDa (Caspase-4 subunit p10) subunit (PubMed:32109412). Upon direct LPS-binding, forms large homooligomers, resulting in its activation (By similarity). These oligomers are often referred to as 'non-canonical inflammasomes' (PubMed:25119034). In its precursor form, interacts with TMEM214; this interaction is required for association with the endoplasmic reticulum membrane (PubMed:23661706). Interacts with CASP1 (PubMed:22246630). Interacts with NOD2 (PubMed:18511561). Interacts with SERPINB1; this interaction regulates CASP4 activity (PubMed:30692621)

RRID

AB_3103120

Database

Entrez Gene: 837 Human

SwissProt: P49662 Human

OMIM: 602664 Human

Synonyms

Caspase-4 subunit 2; Caspase-4 subunit p10; Caspase-11; CASP-11; Protease ICH-3; Apoptosis related cysteine peptidase; Apoptotic cysteine protease Mih1/TX; CASP 4; CASP 4; CASP-4; CASP4; CASP4_HUMAN; CASP4_MOUSE; Caspase 4 apoptosis related cysteine peptidase; Caspase-4 subunit 2; Caspase4; ICE(rel) II; ICE(rel)-II; ICE(rel)II; ICEREL II; ICERELII; ICH 2; ICH 2 protease; ICH2; Mih1/TX; Mih1/TX; Protease ICH-2; Protease TX; TX; TX protease; EC:3.4.22.64.

Documentation

Select Batch:

Data Sheet (235 KB) SDS (254 KB)

COA (205 KB)

User Guide for Antibodies (1077 KB)

CASP4 Antibody Related Classifications

Help & FAQs

Do most proteins show cross-species activity?
Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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CASP4 Antibody

CASP4 Antibody Featured Recommendations:

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CASP4 Antibody Related Classifications

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