Revision 1

#88874Store at -20C

Cell Signaling Technology

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Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB

REACTIVITY:

M

SENSITIVITY:

Endogenous

MW (kDa):

57, 33

Source/Isotype:

Rabbit IgG

UniProt ID:

#Q9Z2D3

Entrez-Gene Id:

54722

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/mL BSA, 50% glycerol, and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

Gasdermin E (E1C5B) Rabbit mAb recognizes endogenous levels of total Gasdermin E protein. This antibody can also detect the amino-terminal cleavage fragment associated with pyroptosis.

Species Reactivity:

Mouse

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding His112 of mouse Gasdermin E protein.

Background

The gasdermin family, which includes GSDMA, GSDMB, GSDMC, GSDMD, and GSDME, has been shown to play a role in inflammation and cell death. Gasdermin D 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).

Gasdermin E (GSDME), also known as DFNA5, was originally identified as a genetic cause of nonsyndromic hearing loss (8). Like other gasdermin family members, Gasdermin E contains an amino-terminal pore forming domain that triggers pyroptosis. Cleavage of Gasdermin E at Asp270 is induced by apoptotic-associated Caspase-3, converting apoptotic signals to pyroptosis (9). In addition, cleavage of Gasdermin E can be induced by Granzyme B secreted by NK cells and contributes to tumor suppressive activity (10). Gasdermin E expression is suppressed in several types of cancer including gastric, colorectal, and breast carcinoma, and may be associated with decreased survival (11-13). In contrast, an increase in Gasdermin E, including the amino-terminal pore-forming fragment, is associated with conditions of excessive inflammation (14-16).

  1. Kayagaki, N. et al. (2015) Nature 526, 666-71.
  2. Shi, J. et al. (2015) Nature 526, 660-5.
  3. Broz, P. and Dixit, V.M. (2016) Nat Rev Immunol 16, 407-20.
  4. Aglietti, R.A. et al. (2016) Proc Natl Acad Sci USA 113, 7858-63.
  5. Ding, J. et al. (2016) Nature 535, 111-6.
  6. Liu, X. et al. (2016) Nature 535, 153-8.
  7. Sborgi, L. et al. (2016) EMBO J 35, 1766-78.
  8. Van Laer, L. et al. (1998) Nat Genet 20, 194-7.
  9. Rogers, C. et al. (2017) Nat Commun 8, 14128.
  10. Zhang, Z. et al. (2020) Nature 579, 415-420.
  11. Kim, M.S. et al. (2008) Oncogene 27, 3624-34.
  12. Kim, M.S. et al. (2008) Biochem Biophys Res Commun 370, 38-43.
  13. Yokomizo, K. et al. (2012) Anticancer Res 32, 1319-22.
  14. Tan, G. et al. (2021) Cell Rep 35, 109265.
  15. Li, Y. et al. (2021) Cell Death Differ 28, 2333-2350.
  16. Shi, H. et al. (2021) Circ Res 129, 383-396.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting

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

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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Revision 1
#88874

Gasdermin E (E1C5B) Rabbit mAb

Western Blotting Image 1: Gasdermin E (E1C5B) Rabbit mAb Expand Image
Western blot analysis of extracts from various cell lines using Gasdermin E (E1C5B) Rabbit mAb (upper) or GAPDH (D16H11) XP® Rabbit mAb #5174 (lower). Negative expression of Gasdermin E protein in A20 cells is consistent with the predicted expression pattern.
Western Blotting Image 2: Gasdermin E (E1C5B) Rabbit mAb Expand Image
Western blot analysis of extracts from 293T cells, mock transfected (-) or transfected with a construct expressing Myc/DDK-tagged full-length mouse Gasdermin E protein (mGSDME-Myc/DDK; +), using Gasdermin E (E1C5B) Rabbit mAb (upper) or GAPDH (D16H11) XP® Rabbit mAb #5174 (lower).
Western Blotting Image 3: Gasdermin E (E1C5B) Rabbit mAb Expand Image
Western blot analysis of extracts from P815 cells, untreated (-) or treated with raptinal (10 μM, 2 hr; +), using Gasdermin E (E1C5B) Rabbit mAb (upper), Cleaved Gasdermin E (Asp270) Antibody #38821 (middle), or GAPDH (D16H11) XP® Rabbit mAb #5174 (lower).