Annotations: 1F2R

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth C]	d1f2rc_	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	CAD & PB1 domains	CAD domain	Caspase-activated DNase (CAD), DFF40, N-terminal domain	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B [auth I]	d1f2ri_	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	CAD & PB1 domains	CAD domain	Inhibitor of caspase-activated DNase (ICAD), DFF45, N-terminal domain	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth C]	SCOP2B Superfamily	CAD & PB1 domains	8034492	3000318	SCOP2B (2022-06-29)
B [auth I]	SCOP2 Family	CAD domain	8022113	4000979	SCOP2 (2022-06-29)
B [auth I]	SCOP2 Superfamily	CAD & PB1 domains	8034493	3000318	SCOP2 (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 [auth C]	CIDE-N	e1f2rC1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: CIDE-N	ECOD (1.6)
B [auth I]	CIDE-N	e1f2rI1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: CIDE-N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth C]	3.10.20.10	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)
B [auth I]	3.10.20.10	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth C]	PF02017	CIDE-N domain (CIDE-N)	CIDE-N domain	This domain is found in CAD nuclease Swiss:O76075 , ICAD Swiss:O00273 the inhibitor of CAD nuclease. The two proteins interact through this domain.	Domain
B [auth I]	PF02017	CIDE-N domain (CIDE-N)	CIDE-N domain	This domain is found in CAD nuclease Swiss:O76075 , ICAD Swiss:O00273 the inhibitor of CAD nuclease. The two proteins interact through this domain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C]	CASPASE-ACTIVATED DNASE	DNA binding binding nucleic acid binding nuclease activity hydrolase activity, acting on ester bonds hydrolase activity catalytic activity DNA endonuclease activity endonuclease activity catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid DNA nuclease activity protein binding enzyme binding DNA binding binding nucleic acid binding nuclease activity hydrolase activity, acting on ester bonds hydrolase activity catalytic activity DNA endonuclease activity endonuclease activity catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid DNA nuclease activity protein binding enzyme binding disordered domain specific binding protein domain specific binding identical protein binding	catabolic process regulation of cellular process negative regulation of biological process macromolecule catabolic process regulation of DNA catabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process cellular component organization execution phase of apoptosis DNA catabolic process negative regulation of cellular process apoptotic nuclear changes negative regulation of nucleobase-containing compound metabolic process cellular component organization or biogenesis catabolic process regulation of cellular process negative regulation of biological process macromolecule catabolic process regulation of DNA catabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process cellular component organization execution phase of apoptosis DNA catabolic process negative regulation of cellular process apoptotic nuclear changes negative regulation of nucleobase-containing compound metabolic process cellular component organization or biogenesis regulation of nucleobase-containing compound metabolic process regulation of apoptotic DNA fragmentation negative regulation of macromolecule metabolic process cellular component disassembly negative regulation of catabolic process regulation of biological process negative regulation of metabolic process biological regulation primary metabolic process DNA metabolic process regulation of macromolecule metabolic process regulation of catabolic process cell death nucleic acid metabolic process negative regulation of apoptotic DNA fragmentation nucleobase-containing compound catabolic process apoptotic DNA fragmentation negative regulation of DNA catabolic process cellular component disassembly involved in execution phase of apoptosis nucleic acid catabolic process metabolic process cellular process negative regulation of DNA metabolic process macromolecule metabolic process apoptotic process programmed cell death regulation of metabolic process regulation of DNA metabolic process chromosome organization organelle organization apoptotic chromosome condensation chromosome condensation	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen cytoplasm cytosol nucleoplasm chromatin chromosome protein-containing complex
B [auth I]	INHIBITOR OF CASPASE-ACTIVATED DNASE	protein binding binding protein domain specific binding enzyme regulator activity molecular function inhibitor activity molecular function regulator activity nuclease inhibitor activity enzyme inhibitor activity deoxyribonuclease inhibitor activity protein folding chaperone	catabolic process regulation of cellular process negative regulation of biological process macromolecule catabolic process regulation of DNA catabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process cellular component organization execution phase of apoptosis DNA catabolic process negative regulation of cellular process apoptotic nuclear changes negative regulation of nucleobase-containing compound metabolic process cellular component organization or biogenesis catabolic process regulation of cellular process negative regulation of biological process macromolecule catabolic process regulation of DNA catabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process cellular component organization execution phase of apoptosis DNA catabolic process negative regulation of cellular process apoptotic nuclear changes negative regulation of nucleobase-containing compound metabolic process cellular component organization or biogenesis regulation of nucleobase-containing compound metabolic process regulation of apoptotic DNA fragmentation negative regulation of macromolecule metabolic process cellular component disassembly negative regulation of catabolic process regulation of biological process negative regulation of metabolic process biological regulation primary metabolic process DNA metabolic process regulation of macromolecule metabolic process regulation of catabolic process cell death nucleic acid metabolic process negative regulation of apoptotic DNA fragmentation nucleobase-containing compound catabolic process apoptotic DNA fragmentation negative regulation of DNA catabolic process cellular component disassembly involved in execution phase of apoptosis nucleic acid catabolic process metabolic process cellular process negative regulation of DNA metabolic process macromolecule metabolic process apoptotic process programmed cell death regulation of metabolic process regulation of DNA metabolic process gene expression chaperone-mediated protein folding macromolecule biosynthetic process protein maturation protein folding biosynthetic process protein metabolic process positive regulation of programmed cell death regulation of apoptotic process positive regulation of biological process regulation of programmed cell death positive regulation of apoptotic process positive regulation of cellular process lymphocyte apoptotic process thymocyte apoptotic process leukocyte apoptotic process T cell apoptotic process negative regulation of programmed cell death negative regulation of execution phase of apoptosis regulation of execution phase of apoptosis negative regulation of apoptotic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin chromosome protein-containing complex cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin chromosome protein-containing complex membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth C]	IPR003508	CIDE-N domain	Domain
A [auth C]	IPR044925	His-Me finger superfamily	Homologous Superfamily
A [auth C]	IPR015311	DNA fragmentation factor 40, C-terminal	Domain
A [auth C]	IPR039729	DNA fragmentation factor 40	Family
B [auth I]	IPR003508	CIDE-N domain	Domain
B [auth I]	IPR015121	DNA fragmentation factor 45kDa, middle domain	Domain
B [auth I]	IPR017299	DNA fragmentation factor 45	Family
B [auth I]	IPR027296	DNA fragmentation factor 45kDa, C-terminal	Homologous Superfamily

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.