3WYO

Heterodimeric myoglobin formed by domain swapping

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3wyoa_	All alpha proteins	Globin-like	Globin-like	Globins	Myoglobin	horse (Equus caballus ) [TaxId: 9796 ],	SCOPe (2.08)
C	d3wyoc_	All alpha proteins	Globin-like	Globin-like	Globins	Myoglobin	horse (Equus caballus ) [TaxId: 9796 ],	SCOPe (2.08)
B	d3wyob_	All alpha proteins	Globin-like	Globin-like	Globins	Myoglobin	horse (Equus caballus ) [TaxId: 9796 ],	SCOPe (2.08)
D	d3wyod_	All alpha proteins	Globin-like	Globin-like	Globins	Myoglobin	horse (Equus caballus ) [TaxId: 9796 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Globin-like	8043424	3000554	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Globin-like	8043424	3000554	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Globin-like	8043424	3000554	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Globin-like	8043424	3000554	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)
A	Globin	e3wyoA1	A: alpha arrays	X: Globin-like (From Topology)	H: Globin-like (From Topology)	T: Globin-like	F: Globin	ECOD (1.6)
C	Globin	e3wyoC1	A: alpha arrays	X: Globin-like (From Topology)	H: Globin-like (From Topology)	T: Globin-like	F: Globin	ECOD (1.6)
B	Globin	e3wyoB1	A: alpha arrays	X: Globin-like (From Topology)	H: Globin-like (From Topology)	T: Globin-like	F: Globin	ECOD (1.6)
D	Globin	e3wyoD1	A: alpha arrays	X: Globin-like (From Topology)	H: Globin-like (From Topology)	T: Globin-like	F: Globin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	6.10.140.2100	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
A	6.10.140.2110	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
C	6.10.140.2100	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
C	6.10.140.2110	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
B	6.10.140.2100	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
B	6.10.140.2110	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
D	6.10.140.2100	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)
D	6.10.140.2110	Special	Helix non-globular	Helix Hairpins		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C	PF00042	Globin (Globin)	Globin		Domain
B, D	PF00042	Globin (Globin)	Globin		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C	Myoglobin	oxygen binding binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on other nitrogenous compounds as donors nitrite reductase activity catalytic activity oxygen carrier activity molecular carrier activity peroxidase activity antioxidant activity oxidoreductase activity, acting on peroxide as acceptor tetrapyrrole binding heme binding oxygen binding binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on other nitrogenous compounds as donors nitrite reductase activity catalytic activity oxygen carrier activity molecular carrier activity peroxidase activity antioxidant activity oxidoreductase activity, acting on peroxide as acceptor tetrapyrrole binding heme binding cation binding ion binding metal ion binding	oxygen transport localization transport gas transport establishment of localization cellular response to stimulus response to stimulus cellular response to oxidative stress detoxification reactive oxygen species metabolic process cellular response to chemical stress response to superoxide cellular oxidant detoxification cellular response to oxygen radical oxygen transport localization transport gas transport establishment of localization cellular response to stimulus response to stimulus cellular response to oxidative stress detoxification reactive oxygen species metabolic process cellular response to chemical stress response to superoxide cellular oxidant detoxification cellular response to oxygen radical cellular response to reactive oxygen species cellular response to stress response to stress cellular detoxification response to oxygen-containing compound cellular response to oxygen-containing compound response to reactive oxygen species response to toxic substance removal of superoxide radicals superoxide metabolic process response to oxidative stress cellular response to chemical stimulus response to chemical cellular response to superoxide metabolic process cellular process cellular response to toxic substance response to oxygen radical	sarcoplasm cellular anatomical structure intracellular anatomical structure cytoplasm
B, D	Myoglobin	oxygen binding binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on other nitrogenous compounds as donors nitrite reductase activity catalytic activity oxygen carrier activity molecular carrier activity peroxidase activity antioxidant activity oxidoreductase activity, acting on peroxide as acceptor tetrapyrrole binding heme binding oxygen binding binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on other nitrogenous compounds as donors nitrite reductase activity catalytic activity oxygen carrier activity molecular carrier activity peroxidase activity antioxidant activity oxidoreductase activity, acting on peroxide as acceptor tetrapyrrole binding heme binding cation binding ion binding metal ion binding	oxygen transport localization transport gas transport establishment of localization cellular response to stimulus response to stimulus cellular response to oxidative stress detoxification reactive oxygen species metabolic process cellular response to chemical stress response to superoxide cellular oxidant detoxification cellular response to oxygen radical oxygen transport localization transport gas transport establishment of localization cellular response to stimulus response to stimulus cellular response to oxidative stress detoxification reactive oxygen species metabolic process cellular response to chemical stress response to superoxide cellular oxidant detoxification cellular response to oxygen radical cellular response to reactive oxygen species cellular response to stress response to stress cellular detoxification response to oxygen-containing compound cellular response to oxygen-containing compound response to reactive oxygen species response to toxic substance removal of superoxide radicals superoxide metabolic process response to oxidative stress cellular response to chemical stimulus response to chemical cellular response to superoxide metabolic process cellular process cellular response to toxic substance response to oxygen radical	sarcoplasm cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR002335	Myoglobin	Family
A, C	IPR009050	Globin-like superfamily	Homologous Superfamily
A, C	IPR000971	Globin	Domain
B, D	IPR002335	Myoglobin	Family
B, D	IPR009050	Globin-like superfamily	Homologous Superfamily
B, D	IPR000971	Globin	Domain

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.