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96388
PathScan® RP Total Gasdermin D Chemiluminescent Sandwich ELISA Kit
ELISA Kits
ELISA Kit

PathScan® RP Total Gasdermin D Chemiluminescent Sandwich ELISA Kit #96388

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Figure 1. Gasdermin D protein is expressed in PC-3 cells but absent in CRISPR/Cas9 Gasdermin D knockout (KO) PC-3 cells. The relationship between lysate protein concentration from PC-3 and CRISPR/Cas9 Gasdermin D KO PC-3 cells and immediate light generation with chemiluminescent substrate using the PathScan® RP Total Gasdermin D Chemiluminescent Sandwich ELISA Kit #96388 is shown in the upper figure. The corresponding western blot using Gasdermin D antibody is shown in the lower figure.
To Purchase # 96388
Cat. # Size Qty. Price
96388C
1 Kit  (96 assays)

Important Ordering Details

Custom Ordering Details:

When ordering five or more kits, please contact us for processing time and pricing.

Looking for this ELISA kit in a 384-well format? Inquire for availability, processing time, and pricing.

Supporting Data

REACTIVITY H

Application Key:

  • WB-Western Blot
  • IP-Immunoprecipitation
  • IHC-Immunohistochemistry
  • ChIP-Chromatin Immunoprecipitation
  • C&R-CUT&RUN
  • C&T-CUT&Tag
  • DB-Dot Blot
  • eCLIP-eCLIP
  • IF-Immunofluorescence
  • F-Flow Cytometry

Species Cross-Reactivity Key:

  • H-Human
  • M-Mouse
  • R-Rat
  • Hm-Hamster
  • Mk-Monkey
  • Vir-Virus
  • Mi-Mink
  • C-Chicken
  • Dm-D. melanogaster
  • X-Xenopus
  • Z-Zebrafish
  • B-Bovine
  • Dg-Dog
  • Pg-Pig
  • Sc-S. cerevisiae
  • Ce-C. elegans
  • Hr-Horse
  • GP-Guinea Pig
  • Rab-Rabbit
  • All-All Species Expected
Product Includes Volume Solution Color
Gasdermin D Rabbit mAb Coated Microwells 96 tests
Gasdermin D Rabbit Detection mAb 1 ea Red (Lyophilized)
HRP Diluent 5.5 ml Red
Luminol/Enhancer Solution 3 ml
Stable Peroxide Buffer 3 ml
Sealing Tape 2 ea
ELISA Wash Buffer (20X) 9801 25 ml
Cell Lysis Buffer (10X) 9803 15 ml

Product Description

The rapid protocol (RP) PathScan® RP Total Gasdermin D Chemiluminescent Sandwich ELISA Kit is a solid phase sandwich enzyme-linked immunosorbent assay (ELISA) that detects endogenous levels of Gasdermin D protein in a reduced assay time of 1.5 hours. This chemiluminescent ELISA, which is offered in low volume microplates, shows increased signal and sensitivity while using a smaller sample size. Incubation of cell lysates and detection antibody on the coated microwell plate forms a sandwich with Gasdermin D protein in a single step. The plate is then extensively washed and chemiluminescent reagent is added for signal development. The magnitude of light emission, measured in relative light units (RLU), is proportional to the quantity of Gasdermin D protein. Learn more about all of your ELISA kit options here.

*Antibodies in this kit are custom formulations specific to kit.

Protocol

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PathScan® Chemiluminescent Sandwich ELISA Protocol (Rapid Protocol)

NOTE: This protocol is for PathScan® kits that use an HRP directly conjugated to the detection antibody (Rapid Protocol), rather than a 2-step method where the detection antibody and a secondary-HRP are added sequentially.

This chemiluminescent ELISA is offered in low volume microplates. Only a total volume of 50 µL (samples and reagents) are required in each microwell.

A. Solutions and Reagents

NOTE: Prepare solutions with deionized/purified water or equivalent.

  1. Microwell strips: Bring all to room temperature before opening bag/use. Unused microwell strips should be returned to the original re-sealable bag containing the desiccant pack and stored at 4°C.
  2. Detection Antibody: Reconstitute lyophilized Detection Antibody (red colored cake) with 3 mL HRP Diluent. Incubate at room temperature for 5 min with occasional gentle mixing to fully reconstitute. For best results, use immediately following antibody reconstitution. Unused reconstituted Detection Antibody may be stored for up to 4 weeks at 4°C, although there may be some loss of signal compared to freshly reconstituted antibody.
  3. HRP Diluent: Red colored diluent for reconstitution and dilution of the Detection Antibody that is linked to HRP (5.5 mL provided, only 3 mL is needed to resuspend the lyophilized Detection Antibody).
  4. 1X ELISA Wash Buffer: Prepare by diluting ELISA Wash Buffer (20X) (included in each kit) to 1X with deionized water.
  5. 1X Cell Lysis Buffer: Prepare by diluting 10X Cell Lysis Buffer #9803 to 1X with deionized water. This buffer can be stored at 4°C for short-term use (1–2 weeks). Recommended: When using to prepare cell lysates, add Protease/Phosphatase Inhibitor Cocktail (#5872, not supplied) and 1 mM phenylmethyl- sulfonyl fluoride (PMSF, #8553, not supplied) immediately before use.
  6. Luminol/Enhancer Solution and Peroxide Buffer

B. Preparing Cell Lysates

For adherent cells

  1. Aspirate media when the culture reaches 80–90% confluence. Treat cells by adding fresh media containing regulator for desired time.
  2. Remove media and rinse cells once with ice-cold 1X PBS.
  3. Remove PBS and add 0.5 mL ice-cold 1X Cell Lysis Buffer including 1 mM PMSF and Protease/Phosphatase Inhibitor Cocktail to each plate (10 cm diameter) and incubate the plate on ice for 5 min.
  4. Scrape cells off the plate and transfer to an appropriate tube. Keep on ice.
  5. Sonicate lysates on ice.
  6. Microcentrifuge for 10 min (14,000 rpm) at 4°C and transfer the supernatant to a new tube. The supernatant is the cell lysate. Store at −80°C in single-use aliquots.

For suspension cells

  1. Remove media by low speed centrifugation (~1200 rpm) when the culture reaches 0.5–1.0 x 106 viable cells/mL. Treat cells by adding fresh media containing regulator for desired time.
  2. Collect cells by low speed centrifugation (~1200 rpm) and wash once with 5-10 mL ice-cold 1X PBS.
  3. Cells harvested from 50 mL of growth media can be lysed in 2.0 mL of 1X Cell Lysis Buffer including 1 mM PMSF and Protease/Phosphatase Inhibitor Cocktail.
  4. Sonicate lysates on ice.
  5. Microcentrifuge for 10 min (14,000 rpm) at 4°C and transfer the supernatant to a new tube. The supernatant is the cell lysate. Store at −80°C in single-use aliquots.

C. Test Procedure

NOTE: Equilibrate all materials and prepared reagents to room temperature prior to running the assay.

  1. Prepare all reagents as indicated above (Section A).
  2. Samples should be undiluted or diluted with 1X Cell Lysis Buffer to a 2X protein concentration in order to achieve a final 1X protein concentration upon addition of the Detection Antibody. Individual datasheets for each kit provide a sensitivity curve that serves as a reference for selection of an appropriate starting lysate concentration. The sensitivity curve shows typical results across a range of lysate concentration points.
  3. Add 25 µL of each sample to the appropriate wells.
  4. Add 25 µL of the Detection Antibody to each well.
  5. Seal the plate and incubate for 1 hour at room temperature on a plate shaker set to 400 rpm (moderate agitation).
  6. Gently remove the tape and wash wells:
    1. Discard plate contents into a receptacle.
    2. Wash 4 times with 1X Wash Buffer, 150 µL each time for each well.
    3. For each wash, strike plates on fresh towels hard enough to remove the residual solution in each well, but do not allow wells to completely dry at any time.
    4. Clean the underside of all wells with a lint-free tissue.
  7. Prepare Detection Reagent Working Solution by mixing equal parts Luminol/Enhancer Solution and Stable Peroxide Buffer.
  8. Add 50 µL of the Detection Reagent Working Solution to each well.
  9. Use a plate-based luminometer to measure Relative Light Units (RLU) at 425 nm within 1–10 min following addition of the substrate. Optimal signal intensity is achieved when read within 10 min.

Protocol Id: 2124

Specificity / Sensitivity

The PathScan® RP Total Gasdermin D Chemiluminescent Sandwich ELISA Kit detects endogenous levels of Gasdermin D protein. The kit sensitivity is shown in Figure 1. This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species. The antibodies used in this kit target the amino-terminal region of human Gasdermin D protein. In transfection experiments, this ELISA kit recognizes full-length Gasdermin D but does not recognize cleaved Gasdermin D.

Background

Gasdermin D (GSDMD), a member of the gasdermin family that includes GSDMA, GSDMB, and GSDMC, has been reported to have a critical role as a downstream effector of pyroptosis (1,2). Pyroptosis is a lytic type of cell death triggered by inflammasomes, multiprotein complexes assembled in response to pathogen-associated molecular patterns (PAMPs) or danger-associated molecular patterns (DAMPs) that result in the activation of caspase-1 and subsequent cleavage of pro-inflammatory cytokines IL-1β and IL-18 (3). Gasdermin D was identified by two independent groups as a substrate of inflammatory caspases, caspase-1 and caspase-11/4/5, producing two fragments: GSDMD-N and GSDMD-C. Cleavage results in release of an intramolecular inhibitory interaction between the N- and C-terminal domains, allowing the N-terminal fragment GSDMD-N to initiate pyroptosis through the formation of pores on the plasma membrane (4-7).

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