Annotations: 5YCI

Ancestral myoglobin aMbWb' of Basilosaurus relative (polyphyly)

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
B	d5ycib1	All alpha proteins	Globin-like	Globin-like	Globins	automated matches	(Physeter macrocephalus ) [TaxId: 9755 ],	SCOPe (2.08)
B	d5ycib2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Physeter macrocephalus ) [TaxId: 9755 ],	SCOPe (2.08)
A	d5ycia1	All alpha proteins	Globin-like	Globin-like	Globins	automated matches	(Physeter macrocephalus ) [TaxId: 9755 ],	SCOPe (2.08)
A	d5ycia2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Physeter macrocephalus ) [TaxId: 9755 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Globin-like	8094365	3000554	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Globin-like	8094365	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)
B	SBP_bac_1	e5yciB1	A: alpha arrays	X: Major facilitator superfamily (MFS) general substrate transporter	H: Major facilitator superfamily (MFS) general substrate transporter	T: Major facilitator superfamily (MFS) general substrate transporter	F: SBP_bac_1	ECOD (v295)
A	Hemocyanin_C	e5yciA1	A: alpha arrays	X: Surp module (SWAP domain)	H: gp11/gp12 receptor-binding domain	T: gp11/gp12 receptor-binding domain	F: Hemocyanin_C	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.490.10	Mainly Alpha	Orthogonal Bundle	Globin-like	Globins	CATH (4.3.0)
A	1.10.490.10	Mainly Alpha	Orthogonal Bundle	Globin-like	Globins	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Ancestral myoglobin aMbWb' of Basilosaurus relative (polyphyly)	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	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 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 extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

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

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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.