Annotations: 2CW8

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF14890	e2cw8A4	A: beta complex topology	X: Hedgehog/intein (From Homology)	H: Hedgehog/intein	T: Hint	F: PF14890	ECOD (1.6)
A	PF14528	e2cw8A3	A: a+b two layers	X: Homing endonucleases-like	H: Homing endonucleases (From Topology)	T: Homing endonucleases	F: PF14528	ECOD (1.6)
A	PF18714	e2cw8A1	A: a+b two layers	X: Endonuclease PI-TkoII domain IV (From Topology)	H: Endonuclease PI-TkoII domain IV (From Topology)	T: Endonuclease PI-TkoII domain IV	F: PF18714	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.170.16.10	Mainly Beta	Beta Complex	Endonuclease - Pi-scei	Chain A, domain 1	CATH (4.3.0)
A	1.10.10.1010	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Intein homing endonuclease, domain IV	CATH (4.3.0)
A	3.10.28.10	Alpha Beta	Roll	Endonuclease I-creI	Homing endonucleases	CATH (4.3.0)
A	1.10.8.1330	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF14528	LAGLIDADG-like domain (LAGLIDADG_3)	LAGLIDADG-like domain	This domain is part of the LAGLIDADG superfamily [1].	Domain
A	PF14890	Intein splicing domain (Intein_splicing)	Intein splicing domain	-	Family
A	PF00136	DNA polymerase family B (DNA_pol_B)	DNA polymerase family B	-	Family
A	PF18714	DNA polymerase II intein Domain IV (PI-TkoII_IV)	DNA polymerase II intein Domain IV	This domain can be found in the hyperthermophilic archaeon Thermococcus kodakaraensis Pol-2 intein. It is suggested to be a potential DNA binding domain [1, 2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Endonuclease PI-PkoII	binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding catalytic activity, acting on DNA DNA-directed DNA polymerase activity DNA polymerase activity catalytic activity, acting on a nucleic acid transferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups nuclease activity hydrolase activity, acting on ester bonds hydrolase activity exonuclease activity DNA binding nucleic acid binding endonuclease activity	nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process DNA recombination metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process intron homing DNA-templated DNA replication DNA replication intein-mediated protein splicing organonitrogen compound metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process DNA recombination metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process intron homing DNA-templated DNA replication DNA replication intein-mediated protein splicing organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process gene expression macromolecule biosynthetic process protein maturation biosynthetic process proteolysis organic substance biosynthetic process protein processing cellular process protein metabolic process protein splicing	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036397	Ribonuclease H superfamily	Homologous Superfamily
A	IPR036844	Hint domain superfamily	Homologous Superfamily
A	IPR006134	DNA-directed DNA polymerase, family B, multifunctional domain	Domain
A	IPR006142	Intein	Domain
A	IPR006141	Intein N-terminal splicing region	PTM
A	IPR017964	DNA-directed DNA polymerase, family B, conserved site	Conserved Site
A	IPR012337	Ribonuclease H-like superfamily	Homologous Superfamily
A	IPR023211	DNA polymerase, palm domain superfamily	Homologous Superfamily
A	IPR003586	Hint domain C-terminal	Domain
A	IPR006172	DNA-directed DNA polymerase, family B	Family
A	IPR041005	DNA polymerase II intein domain IV	Domain
A	IPR043502	DNA/RNA polymerase superfamily	Homologous Superfamily
A	IPR004042	Intein DOD homing endonuclease	Domain
A	IPR027434	Homing endonuclease	Homologous Superfamily
A	IPR006133	DNA-directed DNA polymerase, family B, exonuclease domain	Domain
A	IPR004860	Homing endonuclease, LAGLIDADG	Domain
A	IPR042087	DNA polymerase family B, thumb domain	Homologous Superfamily
A	IPR003587	Hint domain N-terminal	Domain
A	IPR030934	Intein C-terminal splicing region	Domain

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.