Annotations: 2WSH

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	GIY-YIG_1	e2wshB1	A: a+b three layers	X: GIY-YIG endonuclease (From Topology)	H: GIY-YIG endonuclease (From Topology)	T: GIY-YIG endonuclease	F: GIY-YIG_1	ECOD (1.6)
C	GIY-YIG_1	e2wshC1	A: a+b three layers	X: GIY-YIG endonuclease (From Topology)	H: GIY-YIG endonuclease (From Topology)	T: GIY-YIG endonuclease	F: GIY-YIG_1	ECOD (1.6)
D	GIY-YIG_1	e2wshD1	A: a+b three layers	X: GIY-YIG endonuclease (From Topology)	H: GIY-YIG endonuclease (From Topology)	T: GIY-YIG endonuclease	F: GIY-YIG_1	ECOD (1.6)
A	GIY-YIG_1	e2wshA1	A: a+b three layers	X: GIY-YIG endonuclease (From Topology)	H: GIY-YIG endonuclease (From Topology)	T: GIY-YIG endonuclease	F: GIY-YIG_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.1440.40	Alpha Beta	3-Layer(aba) Sandwich	GIY-YIG endonuclease		CATH (4.3.0)
C	3.40.1440.40	Alpha Beta	3-Layer(aba) Sandwich	GIY-YIG endonuclease		CATH (4.3.0)
D	3.40.1440.40	Alpha Beta	3-Layer(aba) Sandwich	GIY-YIG endonuclease		CATH (4.3.0)
A	3.40.1440.40	Alpha Beta	3-Layer(aba) Sandwich	GIY-YIG endonuclease		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF01541	GIY-YIG catalytic domain (GIY-YIG)	GIY-YIG catalytic domain	This domain called GIY-YIG is found in the amino terminal region of excinuclease abc subunit c (uvrC), bacteriophage T4 endonucleases segA, segB, segC, segD and segE; it is also found in putative endonucleases encoded by group I introns of fungi and ...	This domain called GIY-YIG is found in the amino terminal region of excinuclease abc subunit c (uvrC), bacteriophage T4 endonucleases segA, segB, segC, segD and segE; it is also found in putative endonucleases encoded by group I introns of fungi and phage. The structure of I-TevI a GIY-YIG endonuclease, reveals a novel alpha/beta-fold with a central three-stranded antiparallel beta-sheet flanked by three helices [4]. The most conserved and putative catalytic residues are located on a shallow, concave surface and include a metal coordination site.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	ENDONUCLEASE II	DNA binding binding organic cyclic compound binding nucleic acid binding endonuclease activity nuclease activity hydrolase activity, acting on ester bonds hydrolase activity catalytic activity cation binding ion binding metal ion binding small molecule binding	symbiont-mediated perturbation of host cellular process symbiont-mediated suppression of host gene expression biological process involved in interspecies interaction between organisms modulation by symbiont of host process symbiont-mediated perturbation of host gene expression cellular process modulation of process of another organism biological process involved in interaction with host biological process involved in symbiotic interaction degradation of host chromosome by virus catabolism by virus of host DNA viral process modulation by virus of host process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR044556	Endonuclease II-like, GIY-YIG domain	Domain
A, B, C, D	IPR016413	Bacteriophage T4, DenA, endonuclease II	Family
A, B, C, D	IPR035901	GIY-YIG endonuclease superfamily	Homologous Superfamily
A, B, C, D	IPR000305	GIY-YIG endonuclease	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.