Annotations: 1A74

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D [auth B]	d1a74b_	Alpha and beta proteins (a+b)	His-Me finger endonucleases	His-Me finger endonucleases	Intron-encoded homing endonucleases	Intron-encoded homing endonuclease I-PpoI	(Badhamia polycephala ) [TaxId: 5791 ],	SCOPe (2.08)
C [auth A]	d1a74a_	Alpha and beta proteins (a+b)	His-Me finger endonucleases	His-Me finger endonucleases	Intron-encoded homing endonucleases	Intron-encoded homing endonuclease I-PpoI	(Badhamia polycephala ) [TaxId: 5791 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D [auth B]	SCOP2B Superfamily	His-Me finger endonucleases	8034097	3001893	SCOP2B (2022-06-29)
C [auth A]	SCOP2B Superfamily	His-Me finger endonucleases	8034097	3001893	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)
D [auth B]	zf-His_Me_endon	e1a74B1	A: a/b three-layered sandwiches	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: zf-His_Me_endon	ECOD (v294.1)
C [auth A]	Kazal_1	e1a74A1	A: a/b three-layered sandwiches	X: EGF-like	H: EGF-related	T: EGF/Laminin	F: Kazal_1	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D [auth B]	3.90.75.10	Alpha Beta	Alpha-Beta Complex	Homing Intron 3 (I-Ppo) Encoded Endonuclease	Chain A	CATH (4.3.0)
C [auth A]	3.90.75.10	Alpha Beta	Alpha-Beta Complex	Homing Intron 3 (I-Ppo) Encoded Endonuclease	Chain A	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth A], D [auth B]	INTRON-ENCODED ENDONUCLEASE I-PPOI	hydrolase activity catalytic activity endonuclease activity nuclease activity catalytic activity, acting on a nucleic acid	nucleobase-containing compound metabolic process DNA recombination metabolic process cellular process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process intron homing	-
A [auth C], B [auth D]	DNA (5'-D(TPTPGPAPCPTPCPTPCPTPTPAPAPGPAPGPA PGPTPCP*A)-3')	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth A], D [auth B]	IPR008704	Zinc-binding loop region of homing endonuclease	Domain
C [auth A], D [auth B]	IPR044930	Homing endonuclease, His-Me finger superfamily	Homologous Superfamily
C [auth A], D [auth B]	IPR044925	His-Me finger superfamily	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.