Annotations: 1HHO

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1hhoa_	All alpha proteins	Globin-like	Globin-like	Globins	Hemoglobin, alpha-chain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1hhob_	All alpha proteins	Globin-like	Globin-like	Globins	Hemoglobin, beta-chain	human (Homo sapiens ) [TaxId: 9606 ],	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	8039836	3000554	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Globin-like	8039838	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	e1hhoA1	A: alpha arrays	X: Globin-like (From Topology)	H: Globin-like (From Topology)	T: Globin-like	F: Globin	ECOD (1.6)
B	Globin	e1hhoB1	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	1.10.490.10	Mainly Alpha	Orthogonal Bundle	Globin-like	Globins	CATH (4.2.0)
B	1.10.490.10	Mainly Alpha	Orthogonal Bundle	Globin-like	Globins	CATH (4.2.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00042	Globin (Globin)	Globin	-	Domain
B	PF00042	Globin (Globin)	Globin	-	Domain

Gene Product Annotation Gene Product Annotation

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	HEMOGLOBIN A (OXY) (ALPHA CHAIN)	oxygen binding binding small molecule binding oxygen carrier activity molecular carrier activity organic cyclic compound binding tetrapyrrole binding heme binding heterocyclic compound binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding oxygen binding binding small molecule binding oxygen carrier activity molecular carrier activity organic cyclic compound binding tetrapyrrole binding heme binding heterocyclic compound binding cation binding transition metal ion binding iron ion binding ion binding metal ion binding organic acid binding protein binding signaling receptor binding G protein-coupled receptor binding	cellular catabolic process catabolic process organic substance metabolic process cellular metabolic process hydrogen peroxide metabolic process reactive oxygen species metabolic process metabolic process cellular process hydrogen peroxide catabolic process organic substance catabolic process oxygen transport localization transport gas transport cellular catabolic process catabolic process organic substance metabolic process cellular metabolic process hydrogen peroxide metabolic process reactive oxygen species metabolic process metabolic process cellular process hydrogen peroxide catabolic process organic substance catabolic process oxygen transport localization transport gas transport establishment of localization one-carbon compound transport organic substance transport carbon dioxide transport nitric oxide transport nitrogen compound transport response to hydrogen peroxide response to organic substance response to oxidative stress response to stimulus response to chemical response to stress response to oxygen-containing compound response to reactive oxygen species response to inorganic substance cellular response to stimulus cellular detoxification cellular response to chemical stimulus detoxification cellular oxidant detoxification cellular response to toxic substance response to toxic substance	protein-containing complex intracellular anatomical structure hemoglobin complex cytoplasm cellular anatomical entity cytosol haptoglobin-hemoglobin complex membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle protein-containing complex intracellular anatomical structure hemoglobin complex cytoplasm cellular anatomical entity cytosol haptoglobin-hemoglobin complex membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle blood microparticle intracellular vesicle membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle cytoplasmic vesicle organelle lumen endocytic vesicle lumen endocytic vesicle
B	HEMOGLOBIN A (OXY) (BETA CHAIN)	hemoglobin binding protein binding binding oxygen binding small molecule binding hemoglobin alpha binding oxygen carrier activity molecular carrier activity organic cyclic compound binding tetrapyrrole binding heme binding heterocyclic compound binding organic acid binding cation binding hemoglobin binding protein binding binding oxygen binding small molecule binding hemoglobin alpha binding oxygen carrier activity molecular carrier activity organic cyclic compound binding tetrapyrrole binding heme binding heterocyclic compound binding organic acid binding cation binding ion binding metal ion binding	regulation of cellular process cellular biosynthetic process positive regulation of biological process positive regulation of cellular metabolic process cellular nitrogen compound biosynthetic process nitric oxide metabolic process regulation of nitrogen compound metabolic process positive regulation of metabolic process nitric oxide biosynthetic process positive regulation of biosynthetic process nitrogen compound metabolic process positive regulation of cellular process regulation of biosynthetic process regulation of nitric oxide biosynthetic process regulation of cellular process cellular biosynthetic process positive regulation of biological process positive regulation of cellular metabolic process cellular nitrogen compound biosynthetic process nitric oxide metabolic process regulation of nitrogen compound metabolic process positive regulation of metabolic process nitric oxide biosynthetic process positive regulation of biosynthetic process nitrogen compound metabolic process positive regulation of cellular process regulation of biosynthetic process regulation of nitric oxide biosynthetic process regulation of biological process cellular metabolic process biological regulation regulation of cellular metabolic process cellular nitrogen compound metabolic process reactive nitrogen species metabolic process positive regulation of nitric oxide metabolic process regulation of cellular biosynthetic process biosynthetic process positive regulation of nitrogen compound metabolic process metabolic process cellular process regulation of nitric oxide metabolic process positive regulation of nitric oxide biosynthetic process regulation of metabolic process positive regulation of cellular biosynthetic process cellular catabolic process catabolic process organic substance metabolic process hydrogen peroxide metabolic process reactive oxygen species metabolic process hydrogen peroxide catabolic process organic substance catabolic process multicellular organismal process system process circulatory system process regulation of blood pressure regulation of biological quality blood circulation regulation of body fluid levels wound healing response to stimulus homotypic cell-cell adhesion cell activation hemostasis platelet aggregation blood coagulation cell adhesion cell-cell adhesion response to stress coagulation response to wounding platelet activation oxygen transport localization transport gas transport establishment of localization one-carbon compound transport organic substance transport carbon dioxide transport renal system process renal absorption nitric oxide transport nitrogen compound transport regulation of tube diameter regulation of tube size vascular process in circulatory system blood vessel diameter maintenance regulation of anatomical structure size response to hydrogen peroxide response to organic substance response to oxidative stress response to chemical response to oxygen-containing compound response to reactive oxygen species response to inorganic substance cellular response to stimulus cellular detoxification cellular response to chemical stimulus detoxification cellular oxidant detoxification cellular response to toxic substance response to toxic substance	protein-containing complex intracellular anatomical structure hemoglobin complex cytoplasm cellular anatomical entity cytosol haptoglobin-hemoglobin complex extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space protein-containing complex intracellular anatomical structure hemoglobin complex cytoplasm cellular anatomical entity cytosol haptoglobin-hemoglobin complex extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle membrane-enclosed lumen intracellular vesicle ficolin-1-rich granule intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen intracellular organelle organelle lumen cytoplasmic vesicle ficolin-1-rich granule lumen secretory granule secretory vesicle blood microparticle tertiary granule lumen tertiary granule endocytic vesicle lumen endocytic vesicle

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.