Annotations: 4IC1

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF12705	e4ic1A1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF12705	ECOD (1.6)
B	PF12705	e4ic1B1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF12705	ECOD (1.6)
F [auth G]	PF12705	e4ic1G2	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF12705	ECOD (1.6)
G [auth H]	PF12705	e4ic1H1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF12705	ECOD (1.6)
H [auth I]	PF12705	e4ic1I2	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF12705	ECOD (1.6)
I [auth J]	PF12705	e4ic1J2	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF12705	ECOD (1.6)
J [auth K]	PF12705	e4ic1K1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF12705	ECOD (1.6)
C	PF12705	e4ic1C1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF12705	ECOD (1.6)
D	PF12705	e4ic1D1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF12705	ECOD (1.6)
E [auth F]	PF12705	e4ic1F1	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: Restriction endonuclease-like (From Topology)	T: Restriction endonuclease-like	F: PF12705	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.320.10	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
B	3.90.320.10	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
F [auth G]	3.90.320.10	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
G [auth H]	3.90.320.10	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
H [auth I]	3.90.320.10	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
I [auth J]	3.90.320.10	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
J [auth K]	3.90.320.10	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
C	3.90.320.10	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
D	3.90.320.10	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)
E [auth F]	3.90.320.10	Alpha Beta	Alpha-Beta Complex	Lambda Exonuclease	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E [auth F], A, B, C, D, E [auth F], F [auth G], G [auth H], H [auth I], I [auth J], J [auth K]	PF12705	PD-(D/E)XK nuclease superfamily (PDDEXK_1)	PD-(D/E)XK nuclease superfamily	Members of this family belong to the PD-(D/E)XK nuclease superfamily	Domain
A, B, C, D, E [auth F], A, B, C, D, E [auth F], F [auth G], G [auth H], H [auth I], I [auth J], J [auth K]	PF01930	Domain of unknown function DUF83 (Cas_Cas4)	Domain of unknown function DUF83	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E [auth F], A, B, C, D, E [auth F], F [auth G], G [auth H], H [auth I], I [auth J], J [auth K]	Uncharacterized protein	DNA binding binding organic cyclic compound binding nucleic acid binding cation binding manganese ion binding transition metal ion binding ion binding metal ion binding small molecule binding iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding single-stranded DNA 5'-3' DNA exonuclease activity DNA binding binding organic cyclic compound binding nucleic acid binding cation binding manganese ion binding transition metal ion binding ion binding metal ion binding small molecule binding iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding single-stranded DNA 5'-3' DNA exonuclease activity DNA exonuclease activity 5'-3' exonuclease activity catalytic activity, acting on a nucleic acid hydrolase activity 5'-3' DNA exonuclease activity DNA exonuclease activity, producing 5'-phosphomonoesters DNA nuclease activity exonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters single-stranded DNA exodeoxyribonuclease activity catalytic activity, acting on DNA nuclease activity hydrolase activity, acting on ester bonds catalytic activity exonuclease activity	catabolic process primary metabolic process DNA metabolic process macromolecule catabolic process organic cyclic compound catabolic process nucleic acid metabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process DNA catabolic process nucleic acid catabolic process metabolic process macromolecule metabolic process catabolic process primary metabolic process DNA metabolic process macromolecule catabolic process organic cyclic compound catabolic process nucleic acid metabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process DNA catabolic process nucleic acid catabolic process metabolic process macromolecule metabolic process organic substance catabolic process biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus defense response to virus defense response to other organism response to stress response to external biotic stimulus response to virus cellular component organization DNA duplex unwinding organelle organization DNA geometric change chromosome organization cellular process DNA conformation change cellular component organization or biogenesis	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E [auth F], A, B, C, D, E [auth F], F [auth G], G [auth H], H [auth I], I [auth J], J [auth K]	IPR038726	PD-(D/E)XK endonuclease-like domain, AddAB-type	Domain
A, B, C, D, E [auth F], A, B, C, D, E [auth F], F [auth G], G [auth H], H [auth I], I [auth J], J [auth K]	IPR011604	PD-(D/E)XK endonuclease-like domain superfamily	Homologous Superfamily
A, B, C, D, E [auth F], A, B, C, D, E [auth F], F [auth G], G [auth H], H [auth I], I [auth J], J [auth K]	IPR013343	CRISPR-associated protein Cas4	Family

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.