Skip Header

 
Contribute Send feedback
Read comments (0) or add your own

Reviewed, UniProtKB/Swiss-Prot Q9C000 (NALP1_HUMAN)

Last modified July 7, 2009. Version 98. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (6) | Third-party data | Customize display text xml rdf/xml gff fasta
Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Binary interactions · Alternative products · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents

Names and origin

Protein namesRecommended name:
    NACHT, LRR and PYD domains-containing protein 1
Alternative name(s):
    Death effector filament-forming ced-4-like apoptosis protein
    Nucleotide-binding domain and caspase recruitment domain
    Caspase recruitment domain-containing protein 7
Gene names
Name: NLRP1
Synonyms: CARD7, DEFCAP, KIAA0926, NAC, NALP1
OrganismHomo sapiens (Human) [Complete proteome]
Taxonomic identifier9606 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo

Protein attributes

Sequence length1473 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is not processed.
Protein existenceEvidence at protein level.

General annotation (Comments)

Function

Able to form cytoplasmic structures termed death effector filaments. Enhances APAF1 and cytochrome c-dependent activation of pro-caspase-9 and consecutive apoptosis. Stimulates apoptosis through activation of caspase-3. Involved in activation of caspase-1 and caspase-5 as part of the NALP1 inflammasome complex which leads to processing and release of IL1B and IL18. Binds ATP. Ref.7 Ref.9 Ref.11

Subunit structure

Interacts strongly with caspase-2, weakly with caspase-9 and with APAF1 in a cytochrome c-inducible way, leading to the formation of an apoptosome. This interaction may be ATP-dependent. Part of the NALP1 inflammasome complex which is involved in activation of caspase-1 and caspase-5, leading to processing of IL1B and IL18. The complex is activated by bacterial muramyl dipeptide which triggers ATP-binding and oligomerization of NALP1. Ref.4

Subcellular location

Cytoplasm. Nucleus. Ref.10

Tissue specificity

Widely expressed. Isoforms 1 and 2 are expressed in peripheral blood leukocytes and chronic myelogenous leukemia cell line K-562, followed by thymus, spleen and heart. Also detected in brain, lung, placenta, small intestine, colon, kidney, liver, muscle, testis and epithelial cells. Absent from hematopoietic progenitor cells but expressed upon differentiation of cells into granulocytes and, to a lesser extent, monocytes. In peripheral blood cells, highest levels are found in T-lymphocytes, granulocytes and monocytes. Expression is significantly increased in bone marrow blast cells of some acute leukemia patients but not in solid tumors. Ref.10 Ref.8

Involvement in disease

Genetic variations in NLRP1 are associated with susceptibility to vitiligo [MIM:193200]. Vitiligo is an autoimmune pigmentary anomaly of the skin manifested by depigmented white patches that may be surrounded by a hyperpigmented border. Ref.13

Genetic variations in NLRP1 gene are associated with susceptibility to vitiligo-associated multiple autoimmune disease type 1 (VAMAS1) [MIM:606579]. Vitiligo is an autoimmune skin disorder associated with progressive skin depigmentation. Among patients with generalized vitiligo, there is an increased frequency of several other autoimmune and autoinflammatory diseases, particularly autoimmune thyroid disease, latent autoimmune diabetes in adults, rheumatoid arthritis, systemic lupus erythematosus, psoriasis and Addison disease. Ref.13

Sequence similarities

Belongs to the NLRP family.

Contains 1 CARD domain.

Contains 1 DAPIN domain.

Contains 7 LRR (leucine-rich) repeats.

Contains 1 NACHT domain.

Alternative products

This entry describes 4 isoforms produced by alternative splicing. [Align] [Select]
Isoform 1 (identifier: Q9C000-1)

Also known as: NAC beta; DEFCAP-L;

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.
Isoform 2 (identifier: Q9C000-2)

Also known as: NAC alpha; DEFCAP-S;

The sequence of this isoform differs from the canonical sequence as follows:
     1262-1305: Missing.
Isoform 3 (identifier: Q9C000-3)

Also known as: NAC gamma;

The sequence of this isoform differs from the canonical sequence as follows:
     958-987: Missing.
     1262-1305: Missing.
Isoform 4 (identifier: Q9C000-4)

Also known as: NAC delta;

The sequence of this isoform differs from the canonical sequence as follows:
     958-987: Missing.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 14731473NACHT, LRR and PYD domains-containing protein 1
PRO_0000096710

Regions

Domain1 – 9292DAPIN
Domain328 – 637310NACHT
Repeat704 – 72522LRR 1
Repeat807 – 83024LRR 2
Repeat864 – 88724LRR 3
Repeat921 – 94424LRR 4
Repeat950 – 97324LRR 5
Repeat1199 – 121517LRR 6
Repeat1216 – 123621LRR 7
Domain1374 – 146390CARD
Nucleotide binding334 – 3418ATP Potential

Natural variations

Alternative sequence958 – 98730Missing in isoform 3 and isoform 4.
VSP_004326
Alternative sequence1262 – 130544Missing in isoform 2 and isoform 3.
VSP_004327
Natural variant1551L → H Associated with susceptibility to vitiligo and vitiligo-associated autoimmune diseases. dbSNP rs12150220. Ref.13 Ref.1
VAR_033239
Natural variant2461T → S: dbSNP rs11651595. Ref.1
VAR_024238
Natural variant4041R → Q: dbSNP rs3744718.
VAR_021886
Natural variant8781T → M: dbSNP rs11657747. Ref.1
VAR_033240
Natural variant10591V → M: dbSNP rs2301582.
VAR_024239
Natural variant10691H → Y: dbSNP rs9907167.
VAR_033241
Natural variant11191M → V: dbSNP rs35596958. Ref.1
VAR_033242
Natural variant11841M → V: dbSNP rs11651270. Ref.1 Ref.6
VAR_033243
Natural variant12411V → L: dbSNP rs11653832. Ref.1
VAR_033244
Natural variant13661R → C: dbSNP rs2137722. Ref.1
VAR_020437

Experimental info

Mutagenesis339 – 3402GK → EA: Abolishes binding to ATP. Ref.9 Ref.3
Mutagenesis3401K → L or S: No effect. Ref.9 Ref.3
Sequence conflict7821T → S in AAG15254. Ref.1
Sequence conflict9951T → I in AAG15254. Ref.1

Secondary structure

............. 1473
Helix Strand Turn

Details...

Sequences

Sequence LengthMass (Da)Tools
Isoform 1 (NAC beta) (DEFCAP-L) [UniParc].

Last modified June 1, 2001. Version 1.
Checksum: 438F0DCE45C2562D

FASTA1,473165,866
        10         20         30         40         50         60 
MAGGAWGRLA CYLEFLKKEE LKEFQLLLAN KAHSRSSSGE TPAQPEKTSG MEVASYLVAQ 

        70         80         90        100        110        120 
YGEQRAWDLA LHTWEQMGLR SLCAQAQEGA GHSPSFPYSP SEPHLGSPSQ PTSTAVLMPW 

       130        140        150        160        170        180 
IHELPAGCTQ GSERRVLRQL PDTSGRRWRE ISASLLYQAL PSSPDHESPS QESPNAPTST 

       190        200        210        220        230        240 
AVLGSWGSPP QPSLAPREQE APGTQWPLDE TSGIYYTEIR EREREKSEKG RPPWAAVVGT 

       250        260        270        280        290        300 
PPQAHTSLQP HHHPWEPSVR ESLCSTWPWK NEDFNQKFTQ LLLLQRPHPR SQDPLVKRSW 

       310        320        330        340        350        360 
PDYVEENRGH LIEIRDLFGP GLDTQEPRIV ILQGAAGIGK STLARQVKEA WGRGQLYGDR 

       370        380        390        400        410        420 
FQHVFYFSCR ELAQSKVVSL AELIGKDGTA TPAPIRQILS RPERLLFILD GVDEPGWVLQ 

       430        440        450        460        470        480 
EPSSELCLHW SQPQPADALL GSLLGKTILP EASFLITART TALQNLIPSL EQARWVEVLG 

       490        500        510        520        530        540 
FSESSRKEYF YRYFTDERQA IRAFRLVKSN KELWALCLVP WVSWLACTCL MQQMKRKEKL 

       550        560        570        580        590        600 
TLTSKTTTTL CLHYLAQALQ AQPLGPQLRD LCSLAAEGIW QKKTLFSPDD LRKHGLDGAI 

       610        620        630        640        650        660 
ISTFLKMGIL QEHPIPLSYS FIHLCFQEFF AAMSYVLEDE KGRGKHSNCI IDLEKTLEAY 

       670        680        690        700        710        720 
GIHGLFGAST TRFLLGLLSD EGEREMENIF HCRLSQGRNL MQWVPSLQLL LQPHSLESLH 

       730        740        750        760        770        780 
CLYETRNKTF LTQVMAHFEE MGMCVETDME LLVCTFCIKF SRHVKKLQLI EGRQHRSTWS 

       790        800        810        820        830        840 
PTMVVLFRWV PVTDAYWQIL FSVLKVTRNL KELDLSGNSL SHSAVKSLCK TLRRPRCLLE 

       850        860        870        880        890        900 
TLRLAGCGLT AEDCKDLAFG LRANQTLTEL DLSFNVLTDA GAKHLCQRLR QPSCKLQRLQ 

       910        920        930        940        950        960 
LVSCGLTSDC CQDLASVLSA SPSLKELDLQ QNNLDDVGVR LLCEGLRHPA CKLIRLGLDQ 

       970        980        990       1000       1010       1020 
TTLSDEMRQE LRALEQEKPQ LLIFSRRKPS VMTPTEGLDT GEMSNSTSSL KRQRLGSERA 

      1030       1040       1050       1060       1070       1080 
ASHVAQANLK LLDVSKIFPI AEIAEESSPE VVPVELLCVP SPASQGDLHT KPLGTDDDFW 

      1090       1100       1110       1120       1130       1140 
GPTGPVATEV VDKEKNLYRV HFPVAGSYRW PNTGLCFVMR EAVTVEIEFC VWDQFLGEIN 

      1150       1160       1170       1180       1190       1200 
PQHSWMVAGP LLDIKAEPGA VEAVHLPHFV ALQGGHVDTS LFQMAHFKEE GMLLEKPARV 

      1210       1220       1230       1240       1250       1260 
ELHHIVLENP SFSPLGVLLK MIHNALRFIP VTSVVLLYHR VHPEEVTFHL YLIPSDCSIR 

      1270       1280       1290       1300       1310       1320 
KAIDDLEMKF QFVRIHKPPP LTPLYMGCRY TVSGSGSGML EILPKELELC YRSPGEDQLF 

      1330       1340       1350       1360       1370       1380 
SEFYVGHLGS GIRLQVKDKK DETLVWEALV KPGDLMPATT LIPPARIAVP SPLDAPQLLH 

      1390       1400       1410       1420       1430       1440 
FVDQYREQLI ARVTSVEVVL DKLHGQVLSQ EQYERVLAEN TRPSQMRKLF SLSQSWDRKC 

      1450       1460       1470 
KDGLYQALKE THPHLIMELW EKGSKKGLLP LSS 

« Hide

Isoform 2 (NAC alpha) (DEFCAP-S).

Checksum: 6C5CBE8FD2819435
Show »

FASTA1,429160,946
Isoform 3 (NAC gamma).

Checksum: 59C172B75766F38F
Show »

FASTA1,399157,319
Isoform 4 (NAC delta).

Checksum: C30E9BE9EC82FE96
Show »

FASTA1,443162,239

References

« Hide 'large scale' references
[1]"The PYRIN domain: a novel motif found in apoptosis and inflammation proteins."
Bertin J., DiStefano P.S.
Cell Death Differ. 7:1273-1274(2000) [PubMed: 11270363] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), VARIANTS HIS-155; SER-246; MET-878; VAL-1119; VAL-1184; LEU-1241 AND CYS-1366.
[2]"The pyrin domain: a possible member of the death domain-fold family implicated in apoptosis and inflammation."
Martinon F., Hofmann K., Tschopp J.
Curr. Biol. 11:R118-R120(2001) [PubMed: 11250163] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2).
[3]"Molecular cloning and characterization of DEFCAP-L and -S, two isoforms of a novel member of the mammalian Ced-4 family of apoptosis proteins."
Hlaing T., Guo R.-F., Dilley K.A., Loussia J.M., Morrish T.A., Shi M.M., Vincenz C., Ward P.A.
J. Biol. Chem. 276:9230-9238(2001) [PubMed: 11076957] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1 AND 2), MUTAGENESIS OF LYS-340.
Tissue: Erythroleukemia.
[4]"A novel enhancer of the Apaf1 apoptosome involved in cytochrome c-dependent caspase activation and apoptosis."
Chu Z.-L., Pio F., Xie Z., Welsh K., Krajewska M., Krajewski S., Godzik A., Reed J.C.
J. Biol. Chem. 276:9239-9245(2001) [PubMed: 11113115] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1; 2; 3 AND 4), INTERACTION WITH CASP2 AND CASP9.
Tissue: T-cell.
[5]"Prediction of the coding sequences of unidentified human genes. XIII. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro."
Nagase T., Ishikawa K., Suyama M., Kikuno R., Hirosawa M., Miyajima N., Tanaka A., Kotani H., Nomura N., Ohara O.
DNA Res. 6:63-70(1999) [PubMed: 10231032] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2).
Tissue: Brain.
[6]"The full-ORF clone resource of the German cDNA consortium."
Bechtel S., Rosenfelder H., Duda A., Schmidt C.P., Ernst U., Wellenreuther R., Mehrle A., Schuster C., Bahr A., Blocker H., Heubner D., Hoerlein A., Michel G., Wedler H., Kohrer K., Ottenwalder B., Poustka A., Wiemann S., Schupp I.
BMC Genomics 8:399-399(2007) [PubMed: 17974005] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 282-1473 (ISOFORM 1), VARIANT VAL-1184.
Tissue: Uterus.
[7]"The inflammasome: a molecular platform triggering activation of inflammatory caspases and processing of proIL-beta."
Martinon F., Burns K., Tschopp J.
Mol. Cell 10:417-426(2002) [PubMed: 12191486] [Abstract]
Cited for: FUNCTION, IDENTIFICATION IN NALP1 INFLAMMASOME COMPLEX.
[8]"NALP1 is a transcriptional target for cAMP-response-element-binding protein (CREB) in myeloid leukaemia cells."
Sanz C., Calasanz M.J., Andreu E., Richard C., Prosper F., Fernandez-Luna J.L.
Biochem. J. 384:281-286(2004) [PubMed: 15285719] [Abstract]
Cited for: TISSUE SPECIFICITY.
[9]"Expression of NALP1 in cerebellar granule neurons stimulates apoptosis."
Liu F., Lo C.F., Ning X., Kajkowski E.M., Jin M., Chiriac C., Gonzales C., Naureckiene S., Lock Y.-W., Pong K., Zaleska M.M., Jacobsen J.S., Silverman S., Ozenberger B.A.
Cell. Signal. 16:1013-1021(2004) [PubMed: 15212762] [Abstract]
Cited for: FUNCTION, MUTAGENESIS OF 339-GLY-LYS-340.
[10]"Inflammasome components NALP 1 and 3 Show distinct but separate Expression profiles in human tissues suggesting a site-specific role in the inflammatory response."
Kummer J.A., Broekhuizen R., Everett H., Agostini L., Kuijk L., Martinon F., van Bruggen R., Tschopp J.
J. Histochem. Cytochem. 55:443-452(2007) [PubMed: 17164409] [Abstract]
Cited for: SUBCELLULAR LOCATION, TISSUE SPECIFICITY.
[11]"Reconstituted NALP1 inflammasome reveals two-step mechanism of caspase-1 activation."
Faustin B., Lartigue L., Bruey J.-M., Luciano F., Sergienko E., Bailly-Maitre B., Volkmann N., Hanein D., Rouiller I., Reed J.C.
Mol. Cell 25:713-724(2007) [PubMed: 17349957] [Abstract]
Cited for: FUNCTION.
[12]"NMR structure of the apoptosis- and inflammation-related NALP1 pyrin domain."
Hiller S., Kohl A., Fiorito F., Herrmann T., Wider G., Tschopp J., Gruetter M.G., Wuethrich K.
Structure 11:1199-1205(2003) [PubMed: 14527388] [Abstract]
Cited for: STRUCTURE BY NMR OF 1-93.
[13]"NALP1 in vitiligo-associated multiple autoimmune disease."
Jin Y., Mailloux C.M., Gowan K., Riccardi S.L., LaBerge G., Bennett D.C., Fain P.R., Spritz R.A.
N. Engl. J. Med. 356:1216-1225(2007) [PubMed: 17377159] [Abstract]
Cited for: INVOLVEMENT IN SUSCEPTIBILITY TO VITILIGO AND VITILIGO-ASSOCIATED AUTOIMMUNE DISEASES, VARIANT HIS-155.
+Additional computationally mapped references.

Cross-references

Sequence databases

AF298548 mRNA. Translation: AAG15254.1.
AF310105 mRNA. Translation: AAG30288.1.
AF229059 mRNA. Translation: AAK00748.1.
AF229060 mRNA. Translation: AAK00749.1.
AF229061 mRNA. Translation: AAK00750.1.
AF229062 mRNA. Translation: AAK00751.1.
AB023143 mRNA. Translation: BAA76770.2. Different initiation.
AL117470 mRNA. Translation: CAB55945.1.
IPIIPI00004551.
IPI00099688.
IPI00328123.
IPI00335800.
PIRT17255.
RefSeqNP_001028225.1.
NP_055737.1.
NP_127497.1.
NP_127499.1.
NP_127500.1.
UniGeneHs.104305
Hs.652273

3D structure databases

EntryMethodResolution (Å)ChainPositionsPDBsum
1PN5NMR-A1-93[»]
ModBaseSearch...

Protein-protein interaction databases

IntActQ9C000. 6 interactions.

PTM databases

PhosphoSiteQ9C000.

Genome annotation databases

EnsemblENSG00000091592. Homo sapiens. [Contig view]
GeneID22861.
KEGGhsa:22861.
UCSCuc002gch.2. human.
uc002gci.1. human.
uc002gcj.1. human.
uc002gcl.1. human.

Organism-specific databases

GeneCardsGC17M005354.
H-InvDBHIX0013474.
HGNCHGNC:14374. NLRP1.
HPACAB009189.
MIM193200. phenotype.
606579. phenotype.
606636. gene.
Orphanet3435. Vitiligo.
HUGESearch...
GenAtlasSearch...

Phylogenomic databases

HOGENOMQ9C000.
HOVERGENQ9C000.
OMAQ9C000. SPNAPTS.

Enzyme and pathway databases

Pathway_Interaction_DBanthraxpathway. Cellular roles of Anthrax toxin.

Gene expression databases

ArrayExpressQ9C000.
BgeeQ9C000.
CleanExHS_NLRP1.
GermOnlineENSG00000091592. Homo sapiens.

Family and domain databases

InterProIPR001315. CARD.
IPR011029. DEATH-like.
IPR001611. Leu-rich_rpt.
IPR007111. NACHT_NTPase.
IPR004020. Pyrin.
[Graphical view]
Gene3DG3DSA:1.10.533.10. DEATH_like. 1 hit.
PfamPF00619. CARD. 1 hit.
PF00560. LRR_1. 1 hit.
PF05729. NACHT. 1 hit.
PF02758. PAAD_DAPIN. 1 hit.
[Graphical view]
PROSITEPS50209. CARD. 1 hit.
PS50824. DAPIN. 1 hit.
PS50837. NACHT. 1 hit.
[Graphical view]
ProtoNetSearch...

Other Resources

NextBio43357.
SOURCESearch...

Entry information

Entry nameNALP1_HUMAN
AccessionPrimary (citable) accession number: Q9C000
Secondary accession number(s): Q9BZZ8 expand/collapse secondary AC list , Q9BZZ9, Q9HAV8, Q9UFT4, Q9Y2E0
Entry history
Integrated into UniProtKB/Swiss-Prot: October 18, 2001
Last sequence update: June 1, 2001
Last modified: July 7, 2009
This is version 98 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation projectHPI (Human Proteome Initiative)

Relevant documents

Human chromosome 17

Human chromosome 17: entries, gene names and cross-references to MIM

Human entries with polymorphisms or disease mutations

List of human entries with polymorphisms or disease mutations

Human polymorphisms and disease mutations

Index of human polymorphisms and disease mutations

MIM cross-references

Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot

PDB cross-references

Index of Protein Data Bank (PDB) cross-references

SIMILARITY comments

Index of protein domains and families

Names and origin · Protein attributes · General annotation (Comments) · Ontologies · Binary interactions · Alternative products · Sequence annotation (Features) · Sequences · References · Cross-references · Entry information · Relevant documents