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PYCARD

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Human protein and coding gene

PYCARD
Available structures
PDBOrtholog search: PDBe RCSB
List of PDB id codes

1UCP, 2KN6, 3J63, 5H8O

Identifiers
AliasesPYCARD, ASC, CARD5, TMS, TMS-1, TMS1, PYD and CARD domain containing
External IDsOMIM: 606838; MGI: 1931465; HomoloGene: 8307; GeneCards: PYCARD; OMA:PYCARD - orthologs
Gene location (Human)
Chromosome 16 (human)
Chr.Chromosome 16 (human)
Chromosome 16 (human)Genomic location for PYCARDGenomic location for PYCARD
Band16p11.2Start31,201,486 bp
End31,203,450 bp
Gene location (Mouse)
Chromosome 7 (mouse)
Chr.Chromosome 7 (mouse)
Chromosome 7 (mouse)Genomic location for PYCARDGenomic location for PYCARD
Band7|7 F3Start127,588,880 bp
End127,593,039 bp
RNA expression pattern
Bgee
HumanMouse (ortholog)
Top expressed in
  • monocyte

  • granulocyte

  • mucosa of transverse colon

  • blood

  • vulva

  • human penis

  • skin of leg

  • skin of abdomen

  • spleen

  • gingival epithelium
Top expressed in
  • Paneth cell

  • migratory enteric neural crest cell

  • ileum

  • crypt of lieberkuhn of small intestine

  • epithelium of small intestine

  • duodenum

  • large intestine

  • colon

  • left colon

  • esophagus
More reference expression data
BioGPS
More reference expression data
Gene ontology
Molecular function
Cellular component
Biological process
Sources:Amigo / QuickGO
Orthologs
SpeciesHumanMouse
Entrez

29108

66824

Ensembl

ENSG00000103490

ENSMUSG00000030793

UniProt

Q9ULZ3

Q9EPB4

RefSeq (mRNA)

NM_145183
NM_013258
NM_145182

NM_023258

RefSeq (protein)

NP_037390
NP_660183

NP_075747

Location (UCSC)Chr 16: 31.2 – 31.2 MbChr 7: 127.59 – 127.59 Mb
PubMed search
Wikidata
View/Edit HumanView/Edit Mouse

PYCARD, often referred to as ASC (Apoptosis-associated speck-like protein containing a CARD), is a protein that in humans is encoded by the PYCARD gene. It is localized mainly in the nucleus of monocytes and macrophages. In case of pathogen infection, however, it relocalizes rapidly to the cytoplasm, perinuclear space, endoplasmic reticulum and mitochondria and it is a key adaptor protein in activation of the inflammasome.

NMR structure of full-length ASC: PDB ID 2KN6

Function

This gene encodes an adaptor protein that is composed of two protein–protein interaction domains: a N-terminal PYRIN-PAAD-DAPIN domain (PYD) and a C-terminal caspase-recruitment domain (CARD). The PYD and CARD domains are members of the six-helix bundle death domain-fold superfamily that mediates assembly of large signaling complexes in the inflammatory and apoptotic signaling pathways via the activation of caspase. In normal cells, this protein is localized to the cytoplasm; however, in cells undergoing apoptosis, it forms ball-like aggregates near the nuclear periphery.

PYCARD can occur in four different isoforms. Isoform 1, often referred to as canonical PYCARD, and isoform 2 are the activatory isoforms. They co-localize with nucleotide oligomerization domain-like receptors (NLRs) and caspase-1. Unlike isoform 1, isoform 2 is involved in direct IL-1β processing regulation. Isoform 3 is an inhibitory isoform, so that it only co-localizes with caspase-1, but not with NLRs. Isoform 4 is not able to act as an adaptor protein in NLR signalling and its role remains elusive.

Interactions

PYCARD has been shown to interact with MEFV.

References

  1. ^ GRCh38: Ensembl release 89: ENSG00000103490Ensembl, May 2017
  2. ^ GRCm38: Ensembl release 89: ENSMUSG00000030793Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. "Entrez Gene: PYCARD PYD and CARD domain containing". Retrieved 18 September 2010.
  6. ^ Dunn JH, Fujita M (2015). "PYCARD (PYD and CARD domain containing)". Atlas of Genetics and Cytogenetics in Oncology and Haematology (4). doi:10.4267/2042/56440 (inactive 1 November 2024). hdl:2042/56440. ISSN 1768-3262.{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link)
  7. Alba Ed (2009-11-20). "Structure and Interdomain Dynamics of Apoptosis-associated Speck-like Protein Containing a CARD (ASC)". Journal of Biological Chemistry. 284 (47): 32932–32941. doi:10.1074/jbc.M109.024273. ISSN 0021-9258. PMC 2781708. PMID 19759015.
  8. Richards N, Schaner P, Diaz A, Stuckey J, Shelden E, Wadhwa A, Gumucio DL (October 2001). "Interaction between pyrin and the apoptotic speck protein (ASC) modulates ASC-induced apoptosis". J. Biol. Chem. 276 (42): 39320–9. doi:10.1074/jbc.M104730200. PMID 11498534.

Further reading

PDB gallery
  • 1ucp: NMR structure of the PYRIN domain of human ASC 1ucp: NMR structure of the PYRIN domain of human ASC


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