Product: NLRP1 Antibody
Catalog: DF13187
Description: Rabbit polyclonal antibody to NLRP1
Application: WB IF/ICC
Cited expt.: WB
Reactivity: Human
Mol.Wt.: 155 kDa; 166kD(Calculated).
Uniprot: Q9C000
RRID: AB_2846147

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Product Info

Source:
Rabbit
Application:
WB 1:500-1:2000, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Reactivity:
Human
Clonality:
Polyclonal
Specificity:
NLRP1 Antibody detects endogenous levels of total NLRP1.
RRID:
AB_2846147
Cite Format: Affinity Biosciences Cat# DF13187, RRID:AB_2846147.
Conjugate:
Unconjugated.
Purification:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
Storage:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
Alias:

Fold/Unfold

CARD 7; CARD7; Caspase recruitment domain protein 7; Caspase recruitment domain-containing protein 7; CLR17.1; Death effector filament forming Ced 4 like apoptosis protein; Death effector filament-forming ced-4-like apoptosis protein; DEFCAP; DEFCAP L/S; DKFZp586O1822; KIAA0926; LRR and PYD domains-containing protein 1; NAC alpha/beta/gamma/delta; NAC; NACHT; NACHT leucine rich repeat and PYD containing 1; NACHT leucine rich repeat and PYD pyrin domain containing 1; NACHT leucine rich repeat and pyrin domain containing 1; NACHT LRR and PYD containing protein 1; NALP 1; NALP1; NALP1_HUMAN; NLR family pyrin domain containing 1; NLRP 1; NLRP1; NLRP1 protein; Nucleotide binding domain and caspase recruitment domain; Nucleotide binding oligomerization domain leucine rich repeat and pyrin domain containing 1; Nucleotide-binding domain and caspase recruitment domain; PP 1044; PP1044;

Immunogens

Immunogen:

A synthesized peptide derived from human NLRP1, corresponding to a region within N-terminal amino acids.

Uniprot:
Gene(ID):
Expression:
Q9C000 NLRP1_HUMAN:

Widely expressed (PubMed:11113115, PubMed:17164409). Abundantly expressed in primary immune cells (isoform 1 and isoform 2), including in neutrophils, monocytes/macrophages, dendritic cells (mostly Langerhans cells), and B- and T-lymphocytes (at protein level) (PubMed:15285719, PubMed:17164409). Strongly expressed in epithelial cells lining the glandular epithelium, such as that of the gastrointestinal tract (stomach, small intestine, colon), the respiratory tract (trachea and bronchi), and the endometrial and endocervical glands, gallbladder, prostate, and breast (at protein level). In testis, expressed in spermatogonia and primary spermatocytes, but not in Sertoli cells (at protein level). In the brain, expressed in neurons, in particular in pyramidal ones and in oligodendrocytes, but not detected in microglia (at protein level) (PubMed:17164409). Expressed in adult and fetal ocular tissues, including in adult and 24-week old fetal choroid, sclera, cornea, and optic nerve, as well as in adult retina and fetal retina/retinal pigment epithelium (PubMed:23349227). Highly expressed in the skin throughout the epidermis and in dermal fibroblasts, in both glabrous skin and plantar skin. It is detected in keratinocytes, but not in melanocytes. Expressed in epidermal appendages such as hair follicles (PubMed:27662089).

Sequence:
MAGGAWGRLACYLEFLKKEELKEFQLLLANKAHSRSSSGETPAQPEKTSGMEVASYLVAQYGEQRAWDLALHTWEQMGLRSLCAQAQEGAGHSPSFPYSPSEPHLGSPSQPTSTAVLMPWIHELPAGCTQGSERRVLRQLPDTSGRRWREISASLLYQALPSSPDHESPSQESPNAPTSTAVLGSWGSPPQPSLAPREQEAPGTQWPLDETSGIYYTEIREREREKSEKGRPPWAAVVGTPPQAHTSLQPHHHPWEPSVRESLCSTWPWKNEDFNQKFTQLLLLQRPHPRSQDPLVKRSWPDYVEENRGHLIEIRDLFGPGLDTQEPRIVILQGAAGIGKSTLARQVKEAWGRGQLYGDRFQHVFYFSCRELAQSKVVSLAELIGKDGTATPAPIRQILSRPERLLFILDGVDEPGWVLQEPSSELCLHWSQPQPADALLGSLLGKTILPEASFLITARTTALQNLIPSLEQARWVEVLGFSESSRKEYFYRYFTDERQAIRAFRLVKSNKELWALCLVPWVSWLACTCLMQQMKRKEKLTLTSKTTTTLCLHYLAQALQAQPLGPQLRDLCSLAAEGIWQKKTLFSPDDLRKHGLDGAIISTFLKMGILQEHPIPLSYSFIHLCFQEFFAAMSYVLEDEKGRGKHSNCIIDLEKTLEAYGIHGLFGASTTRFLLGLLSDEGEREMENIFHCRLSQGRNLMQWVPSLQLLLQPHSLESLHCLYETRNKTFLTQVMAHFEEMGMCVETDMELLVCTFCIKFSRHVKKLQLIEGRQHRSTWSPTMVVLFRWVPVTDAYWQILFSVLKVTRNLKELDLSGNSLSHSAVKSLCKTLRRPRCLLETLRLAGCGLTAEDCKDLAFGLRANQTLTELDLSFNVLTDAGAKHLCQRLRQPSCKLQRLQLVSCGLTSDCCQDLASVLSASPSLKELDLQQNNLDDVGVRLLCEGLRHPACKLIRLGLDQTTLSDEMRQELRALEQEKPQLLIFSRRKPSVMTPTEGLDTGEMSNSTSSLKRQRLGSERAASHVAQANLKLLDVSKIFPIAEIAEESSPEVVPVELLCVPSPASQGDLHTKPLGTDDDFWGPTGPVATEVVDKEKNLYRVHFPVAGSYRWPNTGLCFVMREAVTVEIEFCVWDQFLGEINPQHSWMVAGPLLDIKAEPGAVEAVHLPHFVALQGGHVDTSLFQMAHFKEEGMLLEKPARVELHHIVLENPSFSPLGVLLKMIHNALRFIPVTSVVLLYHRVHPEEVTFHLYLIPSDCSIRKAIDDLEMKFQFVRIHKPPPLTPLYMGCRYTVSGSGSGMLEILPKELELCYRSPGEDQLFSEFYVGHLGSGIRLQVKDKKDETLVWEALVKPGDLMPATTLIPPARIAVPSPLDAPQLLHFVDQYREQLIARVTSVEVVLDKLHGQVLSQEQYERVLAENTRPSQMRKLFSLSQSWDRKCKDGLYQALKETHPHLIMELWEKGSKKGLLPLSS

Research Backgrounds

Function:

As the sensor component of the NLRP1 inflammasome, plays a crucial role in innate immunity and inflammation. In response to pathogens and other damage-associated signals, initiates the formation of the inflammasome polymeric complex, made of NLRP1, CASP1, and possibly PYCARD. Recruitment of proCASP1 to the inflammasome promotes its activation and CASP1-catalyzed IL1B and IL18 maturation and secretion in the extracellular milieu. Activation of NLRP1 inflammasome is also required for HMGB1 secretion. The active cytokines and HMGB1 stimulate inflammatory responses. Inflammasomes can also induce pyroptosis, an inflammatory form of programmed cell death. May be activated by muramyl dipeptide (MDP), a fragment of bacterial peptidoglycan, in a NOD2-dependent manner. Contrary to its mouse ortholog, not activated by Bacillus anthracis lethal toxin. It is unclear whether isoform 2 is involved in inflammasome formation. It is not cleaved within the FIIND domain, does not assemble into specks, nor promote IL1B release. However, in an vitro cell-free system, it has been shown to be activated by MDP. Binds ATP.

Subcellular Location:

Cytoplasm>Cytosol. Cytoplasm. Inflammasome. Nucleus.
Note: Nucleocytoplasmic distribution in lymphoid organs (probably in T-cells) and in neurons. In epithelial cells, predominantly cytoplasmic.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Tissue Specificity:

Widely expressed. Abundantly expressed in primary immune cells (isoform 1 and isoform 2), including in neutrophils, monocytes/macrophages, dendritic cells (mostly Langerhans cells), and B- and T-lymphocytes (at protein level). Strongly expressed in epithelial cells lining the glandular epithelium, such as that of the gastrointestinal tract (stomach, small intestine, colon), the respiratory tract (trachea and bronchi), and the endometrial and endocervical glands, gallbladder, prostate, and breast (at protein level). In testis, expressed in spermatogonia and primary spermatocytes, but not in Sertoli cells (at protein level). In the brain, expressed in neurons, in particular in pyramidal ones and in oligodendrocytes, but not detected in microglia (at protein level). Expressed in adult and fetal ocular tissues, including in adult and 24-week old fetal choroid, sclera, cornea, and optic nerve, as well as in adult retina and fetal retina/retinal pigment epithelium. Highly expressed in the skin throughout the epidermis and in dermal fibroblasts, in both glabrous skin and plantar skin. It is detected in keratinocytes, but not in melanocytes. Expressed in epidermal appendages such as hair follicles.

Family&Domains:

The CARD domain, rather than the pyrin domain, is involved in the interaction with PYCARD, CASP1 and CASP5.

The leucine-rich repeat (LRR) domain may be involved in autoinhibition in the absence of activating signal, possibly through intramolecular interaction with the NACHT domain.

The FIIND (domain with function to find) region is involved in homomerization, but not in CASP1-binding (By similarity). Autocatalytic cleavage in this region occurs constitutively, prior to activation signals, and is required for inflammasome activity (IL1B release), possibly by facilitating CASP1 binding. Both N- and C-terminal fragments remain associated (PubMed:22665479, PubMed:22087307).

Belongs to the NLRP family.

Research Fields

· Organismal Systems > Immune system > NOD-like receptor signaling pathway.   (View pathway)

References

1). NEMO-Binding Domain/IKKγ Inhibitory Peptide Alleviates Neuronal Pyroptosis in Spinal Cord Injury by Inhibiting ASMase-Induced Lysosome Membrane Permeabilization. Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2024 (PubMed: 39225315) [IF=15.1]

2). Cyclic helix B peptide alleviates proinflammatory cell death and improves functional recovery after traumatic spinal cord injury. Redox Biology, 2023 (PubMed: 37290302) [IF=10.7]

3). Elamipretide alleviates pyroptosis in traumatically injured spinal cord by inhibiting cPLA2-induced lysosomal membrane permeabilization. Journal of Neuroinflammation, 2023 (PubMed: 36609266) [IF=9.3]

4). Ginsenoside-Rh2 Promotes Functional Recovery after Spinal Cord Injury by Enhancing TFEB-Mediated Autophagy. Journal of agricultural and food chemistry, 2024 (PubMed: 38907713) [IF=5.7]

5). GDF-11 Protects the Traumatically Injured Spinal Cord by Suppressing Pyroptosis and Necroptosis via TFE3-Mediated Autophagy Augmentation. Oxidative Medicine and Cellular Longevity, 2021 (PubMed: 34712387)

Application: WB    Species: Mice    Sample: spinal cords

Figure 2 GDF-11 attenuates pyroptosis following spinal cord injury. (a) Immunofluorescence staining for Caspase-1 and NeuN colocalization in the spinal cords of the GDF-11, SCI, and sham groups (scale bar = 25 μm). (b) The quantitative mean optical density of Caspase-1 in neurons of spinal cord lesions. (c) Immunofluorescence staining for GSDMD and NeuN colocalization in the spinal cords of the GDF-11, SCI, and sham groups (scale bar = 25 μm). (d) The quantitative average optical density of GSDMD within neurons of spinal cord lesions. (e) Western blot assay for IL-18, IL-1β, GSDMD, Caspase-1, ASC, NLRP3, and NLRP1 expression levels in the three groups. Gels were subjected to identical experimental conditions, with cropped blots presented. (f) Optical densities of the IL-18, IL-1β, GSDMD, Caspase-1, ASC, NLRP3, and NLRP1 expression levels were quantified and investigated in the respective groups. Data are expressed as the mean ± SEM, n = 6 per group. ∗∗p < 0.01 vs. the sham group. #p < 0.05 and ##p < 0.01 vs. the SCI group.

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