Caspase-1 antibody | knockout validation | Cell Signaling 3866

This is a knockout-validated antibody summary, based on the publication "Human Cytomegalovirus Immediate Early 86-kDa Protein Blocks Transcription and Induces Degradation of the Immature Interleukin-1β Protein during Virion-Mediated Activation of the AIM2 Inflammasome", as cited below [1]. Labome curates formal publications to compile a list of antibodies with unambiguous specificity within Validated Antibody Database (VAD).

Caspase-1 antibody | knockout validation | Cell Signaling 3866 figure 1
Figure 1. Immunoblot assay for caspase-1 and GAPDH in THP-1 cells transduced with Cas9 and guide RNA (gRNA) targeting HUMCYC pseudogene or in indicated CRISPR-generated knockout cells. From [1].
Antibody information

Rabbit monoclonal IgG

Company: Cell Signaling

Antibody: Caspase-1

Catalog number: 3866

Summary: Rabbit monoclonal IgG against a synthetic peptide corresponding to residues within the p20 subunit of human caspase-1. Reacts with human and it is predicted to react based on 100% sequence homology with monkey. Suitable for western blot and immunoprecipitation.

Validation Method

Western blot

Sample

Control and caspase-1-KO THP-1 cells. Cell pellets were lysed in RIPA buffer (10 mM Tris-Cl (pH 8.0), 1 mM EDTA, 1% Triton X-100, 0.1% sodium deoxycholate, 0.1% SDS, 140 mM NaCl, and protease and phosphatase inhibitor cocktail).

Blocking agent

5% milk in 1× phosphate-buffered saline (PBS) containing 0.1% Tween 20 for 30 min at room temperature.

Primary incubation

Overnight at 4°C.

Secondary incubation

Horseradish peroxidase (HRP)-conjugated secondary antibodies in 5% milk for 30 min at room temperature.

Detection

Enhanced chemiluminescence (Thermo Fisher).

References
  1. Botto S, Abraham J, Mizuno N, Pryke K, Gall B, Landais I, et al. Human Cytomegalovirus Immediate Early 86-kDa Protein Blocks Transcription and Induces Degradation of the Immature Interleukin-1β Protein during Virion-Mediated Activation of the AIM2 Inflammasome. MBio. 2019;10: pubmed publisher