4Z20 | pdb_00004z20

Crystal Structure of Meganuclease I-SmaMI Bound to Uncleaveable DNA with a TTGT Central Four

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	LAGLIDADG_1	e4z20A2	A: a+b two layers	X: Homing endonucleases-like	H: Homing endonucleases (From Topology)	T: Homing endonucleases	F: LAGLIDADG_1	ECOD (1.6)
D	LAGLIDADG_1	e4z20D2	A: a+b two layers	X: Homing endonucleases-like	H: Homing endonucleases (From Topology)	T: Homing endonucleases	F: LAGLIDADG_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.28.10	Alpha Beta	Roll	Endonuclease I-creI	Homing endonucleases	CATH (4.3.0)
D	3.10.28.10	Alpha Beta	Roll	Endonuclease I-creI	Homing endonucleases	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, D	PF00961	LAGLIDADG endonuclease (LAGLIDADG_1)	LAGLIDADG endonuclease		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, D	MEGANUCLEASE I-SMAMI	endonuclease activity nuclease activity hydrolase activity, acting on ester bonds hydrolase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	-	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle
B [auth C], E [auth F]	DNA (26-MER)	-	-	-
C [auth B], F [auth E]	DNA (26-MER)	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, D	IPR051289	LAGLIDADG Homing Endonuclease	Family
A, D	IPR004860	Homing endonuclease, LAGLIDADG domain	Domain
A, D	IPR027434	Homing endonuclease	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.