NALP1 (NAcht, Leucine-rich repeat and PYD domain containing protein 1; also NAC, CARD7, DEFCAP and CLR17.1) is a 160-170 kDa member of the NLRP family of molecules. It is expressed in dendritic cells, neutrophils, T and B cells, alveolar macrophages, permatogonia, neurons, plus intestinal columnar epithelium, and is found in both cytoplasm and nucleus. NALP1 promotes apoptosis plus IL-1 beta and IL-18 maturation by activating caspase-1 and -5. It does so by forming a 700 kDa inflammasome comprised of NALP1, ASC plus caspase-1 and -5. Bacterial wall peptidoglycan binds to NALP1, promoting ATP binding, NALP1 oligomerization, and caspase activation. Human NALP1 is 1473 amino acids (aa) in length. It contains an N-terminal DAPIN domain (aa 1-92), a NACHT domain (aa 328-637), seven consecutive LRRs (aa 704-1236) and one CARD region (aa 1374-1463). Alternate splice forms exist that range in size from 70 kDa-150 kDa. Either individually, or in combination, there can be a 19 aa substitution for either aa 1353-1473 or aa 1368-1472, a deletion of aa 91-260, 958-987 or 1262-1305, and a 43 aa insert after Leu785. Over aa 1-323, human NALP1 shares less that 20% aa identity with mouse NALP1.
Key Product Details
Species Reactivity
Validated:
Human
Cited:
Human
Applications
Validated:
Western Blot
Cited:
Western Blot, Immunoprecipitation
Label
Unconjugated
Antibody Source
Polyclonal Sheep IgG
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Product Specifications
Immunogen
E. coli-derived recombinant human NLRP1/NALP1
Met1-Asp323 (Leu155His)
Accession # Q9C000
Met1-Asp323 (Leu155His)
Accession # Q9C000
Specificity
Detects human NLRP1/NALP1 in direct ELISAs and Western blots. In direct ELISAs, less than 2% cross-reactivity with recombinant human (rh) NALP2 and rhNALP3 is observed.
Clonality
Polyclonal
Host
Sheep
Isotype
IgG
Scientific Data Images for Human NLRP1/NALP1 Antibody
Detection of Human NLRP1/NALP1 by Western Blot.
Western blot shows lysates of HEK293 human embryonic kidney cell line either mock transfected, transfected with human NLRP1/NALP1 or transfected with NALP3, THP-1 human acute monocytic leukemia cell line, and Ramos human Burkitt's lymphoma cell line. PVDF Membrane was probed with 0.5 µg/mL of Sheep Anti-Human NLRP1/NALP1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6788) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # HAF016). Specific bands were detected for NLRP1/NALP1 at approximately 160 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 2.Detection of NLRP1/NALP1 by Western Blot
DPP8/9 inhibitors activate the CARD8 inflammasome in T cells. A–c Human primary CD3+ T cells were pre-treated with the indicated compounds for 30 min prior to the addition of VbP (2 μM, 6 h). Cell viability was assessed using Cell-TiterGlo. Data are means ± s.e.m. of four or five biological replicates. ***p < 0.001 by two-sided Student’s t test. NS not significant. d Immunoblots of CARD8 KO CD3+ T-cell lysates treated with VbP (20 μM, 24 h). e, f CD3+ T cells (Donor 008) were primed with LPS (10 μg/mL, 4 h) before treatment with the indicated concentrations of VbP (6 h), LT (6 h), Lfn-flagellin (3 h), or nigericin (1 h). Lysates were then evaluated by immunoblotting (e) and supernatants were analyzed for LDH release (f) and IL-1 beta secretion (g). Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/32796818), licensed under a CC-BY license. Not internally tested by R&D Systems.Detection of NLRP1/NALP1 by Western Blot
DPP8/9 inhibitors induce pyroptosis in primary lymphocytes.a Domain structures of human NLRP1 and CARD8. Note that the ZU5 and UPA sub-domains together are referred to as a FIIND. b, c The indicated primary cells were treated with VbP (24 h) before cell death was assessed by Cell-TiterGlo (b) and lysates were evaluated by immunoblotting (c). Data are means ± s.e.m. of four biological replicates. d CD3+ T cells were treated with VbP (20 μM, 24 h) or 8j (20 μM, 24 h) before lysates were evaluated by immunoblotting. Immunoblots are representative of three independent experiments. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/32796818), licensed under a CC-BY license. Not internally tested by R&D Systems.Applications for Human NLRP1/NALP1 Antibody
Application
Recommended Usage
Western Blot
0.5 µg/mL
Sample: HEK293 human embryonic kidney cell line either transfected with human NLRP1/NALP1 or transfected with NALP3, THP‑1 human acute monocytic leukemia cell line, and Ramos human Burkitt's lymphoma cell line
Sample: HEK293 human embryonic kidney cell line either transfected with human NLRP1/NALP1 or transfected with NALP3, THP‑1 human acute monocytic leukemia cell line, and Ramos human Burkitt's lymphoma cell line
Reviewed Applications
Read 1 review rated 5 using AF6788 in the following applications:
Formulation, Preparation, and Storage
Purification
Antigen Affinity-purified
Reconstitution
Sterile PBS to a final concentration of 0.2 mg/mL. For liquid material, refer to CoA for concentration.
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Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculators
Background: NLRP1/NALP1
Long Name
NLR Family, Pyrin Domain Containing 1
Alternate Names
CARD7, CLR17.1, DEFCAP, NALP1, PP1044, SLEV1, VAMAS1
Gene Symbol
NLRP1
UniProt
Additional NLRP1/NALP1 Products
Product Documents for Human NLRP1/NALP1 Antibody
Certificate of Analysis
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Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Human NLRP1/NALP1 Antibody
For research use only
Related Research Areas
Citations for Human NLRP1/NALP1 Antibody
Customer Reviews for Human NLRP1/NALP1 Antibody (1)
5 out of 5
1 Customer Rating
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Cellular Response to Hypoxia Protocols
- R&D Systems Quality Control Western Blot Protocol
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars
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