Annotations: 6X6C

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D [auth F]	SCOP2B Superfamily	UPA domain-like	8102985	3002775	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	F_UNCLASSIFIED	e6x6cA1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 8-bladed	F: F_UNCLASSIFIED	ECOD (1.6)
A	Hydrolase_4	e6x6cA2	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases (From Topology)	H: alpha/beta-Hydrolases (From Topology)	T: alpha/beta-Hydrolases	F: Hydrolase_4	ECOD (1.6)
B [auth D]	F_UNCLASSIFIED	e6x6cD1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 8-bladed	F: F_UNCLASSIFIED	ECOD (1.6)
B [auth D]	Hydrolase_4	e6x6cD2	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases (From Topology)	H: alpha/beta-Hydrolases (From Topology)	T: alpha/beta-Hydrolases	F: Hydrolase_4	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B [auth D]	PF00930	Dipeptidyl peptidase IV (DPP IV) N-terminal region (DPPIV_N)	Dipeptidyl peptidase IV (DPP IV) N-terminal region	-	Repeat
A, B [auth D]	PF00326	Prolyl oligopeptidase family (Peptidase_S9)	Prolyl oligopeptidase family	-	Domain
A, B [auth D]	PF19520	Dipeptidyl peptidase 8 and 9 N-terminal (Dpp_8_9_N)	Dipeptidyl peptidase 8 and 9 N-terminal	-	Repeat
C [auth E], D [auth F]	PF13553	Function to find (FIIND)	Function to find	The function to find (FIIND) was initially discovered in two proteins, NLRP1 (aka NALP1, CARD7, NAC, DEFCAP) and CARD8 (aka TUCAN, Cardinal) [1]. NLRP1 is a member of the Nod-like receptor (NLR) protein superfamily and is involved in apoptosis and i ...	The function to find (FIIND) was initially discovered in two proteins, NLRP1 (aka NALP1, CARD7, NAC, DEFCAP) and CARD8 (aka TUCAN, Cardinal) [1]. NLRP1 is a member of the Nod-like receptor (NLR) protein superfamily and is involved in apoptosis and inflammation. To date, it is the only NLR protein known to have a FIIND domain. The FIIND domain is also present in the CARD8 protein where, like in NLRP1, it is followed by a C-terminal CARD domain. Both proteins are described to form an "inflammasome", a macro-molecular complex able to process caspase 1 and activate pro-IL1beta [2]. The FIIND domain is present in only a very small subset of the kingdom of life, comprising primates, rodents (mouse, rat), carnivores (dog) and a few more, such as horse. Publications describing the newly discovered NLRP1 protein failed to identify it as a separate domain; for example, it was taken as part of the adjacent leucine rich repeat domain (LRR) [3]. Upon discovery of CARD8 it was noted that the N-terminal region shared significant sequence identity with an undescribed region in NLRP1 [1]. Before getting its final name, FIIND [2], this domain was termed NALP1-associated domain (NAD) [4]. This is a peptidase domain of the ZU5 superfamily that is predicted to be involved in autoproteolytic cleavage [5].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B [auth D]	Dipeptidyl peptidase 9	peptidase activity catalytic activity, acting on a protein dipeptidyl-peptidase activity hydrolase activity exopeptidase activity catalytic activity serine hydrolase activity serine-type peptidase activity aminopeptidase activity identical protein binding protein binding binding	pyroptosis cellular process cell death programmed cell death organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process regulation of biological process regulation of cellular process negative regulation of programmed cell death pyroptosis cellular process cell death programmed cell death organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process regulation of biological process regulation of cellular process negative regulation of programmed cell death biological regulation negative regulation of cellular process negative regulation of biological process regulation of programmed cell death	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cell leading edge polymeric cytoskeletal fiber intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle supramolecular fiber microtubule supramolecular polymer supramolecular complex intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cell leading edge polymeric cytoskeletal fiber intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle supramolecular fiber microtubule supramolecular polymer supramolecular complex microtubule cytoskeleton non-membrane-bounded organelle membrane-bounded organelle nucleus intracellular membrane-bounded organelle
C [auth E], D [auth F]	NACHT, LRR and PYD domains-containing protein 1	RNA binding double-stranded RNA binding binding organic cyclic compound binding nucleic acid binding cysteine-type endopeptidase activator activity endopeptidase activator activity enzyme regulator activity enzyme activator activity peptidase regulator activity molecular function activator activity molecular function regulator activity peptidase activator activity endopeptidase regulator activity RNA binding double-stranded RNA binding binding organic cyclic compound binding nucleic acid binding cysteine-type endopeptidase activator activity endopeptidase activator activity enzyme regulator activity enzyme activator activity peptidase regulator activity molecular function activator activity molecular function regulator activity peptidase activator activity endopeptidase regulator activity adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding cysteine-type endopeptidase activator activity involved in apoptotic process cysteine-type endopeptidase regulator activity involved in apoptotic process peptidase activator activity involved in apoptotic process protein binding protein domain specific binding protein-macromolecule adaptor activity molecular adaptor activity signaling adaptor activity peptidase activity catalytic activity, acting on a protein hydrolase activity catalytic activity molecular condensate scaffold activity molecular transducer activity pattern recognition receptor activity signaling receptor activity DNA binding double-stranded DNA binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity, acting on acid anhydrides ATP-dependent activity enzyme binding	cellular response to stimulus positive regulation of response to biotic stimulus regulation of cellular process pattern recognition receptor signaling pathway response to stimulus response to biotic stimulus cell communication cellular component biogenesis immune response-activating signaling pathway cellular component assembly inflammasome-mediated signaling pathway positive regulation of immune response canonical inflammasome complex assembly regulation of immune system process cellular response to stimulus positive regulation of response to biotic stimulus regulation of cellular process pattern recognition receptor signaling pathway response to stimulus response to biotic stimulus cell communication cellular component biogenesis immune response-activating signaling pathway cellular component assembly inflammasome-mediated signaling pathway positive regulation of immune response canonical inflammasome complex assembly regulation of immune system process signal transduction positive regulation of immune system process innate immune response-activating signaling pathway regulation of biological process immune response response to other organism regulation of innate immune response response to external stimulus regulation of response to stimulus defense response to other organism positive regulation of defense response activation of innate immune response regulation of immune response NLRP1 inflammasome complex assembly inflammatory response activation of immune response cytoplasmic pattern recognition receptor signaling pathway regulation of defense response regulation of response to biotic stimulus biological process involved in interspecies interaction between organisms regulation of response to external stimulus intracellular receptor signaling pathway signaling positive regulation of biological process positive regulation of response to stimulus cellular component organization positive regulation of response to external stimulus immune response-regulating signaling pathway regulation of response to stress response to stress innate immune response protein-containing complex assembly response to external biotic stimulus cellular component organization or biogenesis positive regulation of innate immune response defense response protein-containing complex organization biological regulation defense response to symbiont immune system process cellular process regulation of inflammatory response positive regulation of inflammatory response pyroptosis cell death programmed cell death apoptotic process regulation of apoptotic process regulation of programmed cell death defense response to bacterium response to bacterium multicellular organismal process interleukin-1 production cellular biosynthetic process positive regulation of cellular metabolic process regulation of interleukin-1 beta production positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of interleukin-1 beta production organic substance metabolic process positive regulation of biosynthetic process regulation of cytokine production organic substance biosynthetic process cytokine production regulation of multicellular organismal process positive regulation of interleukin-1 production positive regulation of macromolecule metabolic process positive regulation of cellular process regulation of biosynthetic process regulation of interleukin-1 production cellular metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process interleukin-1 beta production positive regulation of gene expression positive regulation of multicellular organismal process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process positive regulation of cytokine production regulation of metabolic process positive regulation of cellular biosynthetic process response to light stimulus cellular response to radiation response to UV response to UV-B cellular response to environmental stimulus cellular response to UV-B cellular response to light stimulus response to radiation response to abiotic stimulus cellular response to abiotic stimulus cellular response to UV defense response to virus response to virus organonitrogen compound metabolic process proteolysis self proteolysis primary metabolic process protein metabolic process regulation of catalytic activity positive regulation of protein metabolic process positive regulation of peptidase activity positive regulation of cysteine-type endopeptidase activity involved in apoptotic process regulation of primary metabolic process positive regulation of molecular function regulation of cysteine-type endopeptidase activity involved in apoptotic process regulation of proteolysis regulation of endopeptidase activity activation of cysteine-type endopeptidase activity involved in apoptotic process regulation of cysteine-type endopeptidase activity regulation of protein metabolic process regulation of peptidase activity positive regulation of catalytic activity regulation of molecular function positive regulation of hydrolase activity positive regulation of cysteine-type endopeptidase activity regulation of hydrolase activity positive regulation of endopeptidase activity positive regulation of proteolysis antiviral innate immune response intracellular signal transduction stress-activated protein kinase signaling cascade cellular response to stress neuron apoptotic process response to organic substance response to organonitrogen compound response to chemical response to oxygen-containing compound response to muramyl dipeptide response to nitrogen compound protein complex oligomerization protein homooligomerization	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol canonical inflammasome complex protein-containing complex membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle organelle lumen intracellular anatomical structure cytoplasm cellular anatomical entity cytosol canonical inflammasome complex protein-containing complex membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle nucleoplasm NLRP1 inflammasome complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B [auth D]	IPR045785	Dipeptidyl peptidase 8 /9 ,N-terminal	Domain
A, B [auth D]	IPR029058	Alpha/Beta hydrolase fold	Homologous Superfamily
A, B [auth D]	IPR001375	Peptidase S9, prolyl oligopeptidase, catalytic domain	Domain
A, B [auth D]	IPR002469	Dipeptidylpeptidase IV, N-terminal domain	Domain
C [auth E], D [auth F]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
C [auth E], D [auth F]	IPR001611	Leucine-rich repeat	Repeat
C [auth E], D [auth F]	IPR041075	NOD2, winged helix domain	Domain
C [auth E], D [auth F]	IPR004020	DAPIN domain	Domain
C [auth E], D [auth F]	IPR025307	FIIND domain	Domain
C [auth E], D [auth F]	IPR007111	NACHT nucleoside triphosphatase	Domain
C [auth E], D [auth F]	IPR011029	Death-like domain superfamily	Homologous Superfamily
C [auth E], D [auth F]	IPR033516	CARD8/ASC/NALP1, CARD domain	Domain
C [auth E], D [auth F]	IPR041267	NACHT, LRR and PYD domains-containing protein, helical domain HD2	Domain
C [auth E], D [auth F]	IPR032675	Leucine-rich repeat domain superfamily	Homologous Superfamily
C [auth E], D [auth F]	IPR001315	CARD domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B [auth D]	Pharos: Q86TI2	idiopathic pulmonary fibrosis acute interstitial pneumonia idiopathic interstitial pneumonia Sjogren syndrome diabetes mellitus type 2 diabetes mellitus Hamman-Rich syndrome polycystic ovary syndrome
C [auth E], D [auth F]	Pharos: Q9C000	vitiligo-associated multiple autoimmune disease susceptibility 1 corneal intraepithelial dyskeratosis-palmoplantar hyperkeratosis-laryngeal dyskeratosis syndrome autoinflammation with arthritis and dyskeratosis atypical teratoid rhabdoid tumor large cell medulloblastoma malignant glioma non-small cell lung carcinoma PALMOPLANTAR CARCINOMA, MULTIPLE SELF-HEALING subependymal giant cell astrocytoma cystic fibrosis lung cancer malignant mesothelioma osteosarcoma pancreatic intraductal papillary-mucinous carcinoma vitiligo vitiligo-associated multiple autoimmune disease susceptibility 1 corneal intraepithelial dyskeratosis-palmoplantar hyperkeratosis-laryngeal dyskeratosis syndrome autoinflammation with arthritis and dyskeratosis atypical teratoid rhabdoid tumor large cell medulloblastoma malignant glioma non-small cell lung carcinoma PALMOPLANTAR CARCINOMA, MULTIPLE SELF-HEALING subependymal giant cell astrocytoma cystic fibrosis lung cancer malignant mesothelioma osteosarcoma pancreatic intraductal papillary-mucinous carcinoma vitiligo breast cancer glioblastoma lung carcinoma medulloblastoma ovarian cancer psoriasis

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.