Annotations: 1CH4

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D	d1ch4d_	All alpha proteins	Globin-like	Globin-like	Globins	Chimeric hemoglobin beta-alpha	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d1ch4c_	All alpha proteins	Globin-like	Globin-like	Globins	Chimeric hemoglobin beta-alpha	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1ch4b_	All alpha proteins	Globin-like	Globin-like	Globins	Chimeric hemoglobin beta-alpha	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1ch4a_	All alpha proteins	Globin-like	Globin-like	Globins	Chimeric hemoglobin beta-alpha	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)
D	SCOP2B Superfamily	Globin-like	8039838	3000554	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Globin-like	8039838	3000554	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Globin-like	8039838	3000554	SCOP2B (2022-06-29)
A	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)
D		e1ch4D1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: alpha-2-Macroglobulin receptor associated protein (RAP) domain 1	T: alpha-2-Macroglobulin receptor associated protein (RAP) domain 1	F:	ECOD (v294.1)
C		e1ch4C1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: alpha-2-Macroglobulin receptor associated protein (RAP) domain 1	T: alpha-2-Macroglobulin receptor associated protein (RAP) domain 1	F:	ECOD (v294.1)
B		e1ch4B1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: alpha-2-Macroglobulin receptor associated protein (RAP) domain 1	T: alpha-2-Macroglobulin receptor associated protein (RAP) domain 1	F:	ECOD (v294.1)
A		e1ch4A1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: alpha-2-Macroglobulin receptor associated protein (RAP) domain 1	T: alpha-2-Macroglobulin receptor associated protein (RAP) domain 1	F:	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

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

Protein Family Annotation Pfam Database Homepage

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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	MODULE-SUBSTITUTED CHIMERA HEMOGLOBIN BETA-ALPHA	hemoglobin binding protein binding binding oxygen binding small molecule binding hemoglobin alpha binding oxygen carrier activity molecular carrier activity tetrapyrrole binding heme binding cation binding ion binding metal ion binding	regulation of biosynthetic process regulation of nitric oxide biosynthetic process regulation of biological process regulation of cellular process biological regulation positive regulation of biological process reactive nitrogen species metabolic process nitric oxide metabolic process positive regulation of metabolic process nitric oxide biosynthetic process biosynthetic process positive regulation of biosynthetic process cellular process metabolic process regulation of biosynthetic process regulation of nitric oxide biosynthetic process regulation of biological process regulation of cellular process biological regulation positive regulation of biological process reactive nitrogen species metabolic process nitric oxide metabolic process positive regulation of metabolic process nitric oxide biosynthetic process biosynthetic process positive regulation of biosynthetic process cellular process metabolic process regulation of nitric oxide metabolic process positive regulation of nitric oxide biosynthetic process regulation of metabolic process positive regulation of cellular process catabolic process hydrogen peroxide metabolic process reactive oxygen species metabolic process hydrogen peroxide catabolic process multicellular organismal process system process circulatory system process regulation of blood pressure regulation of biological quality blood circulation developmental process erythrocyte development cellular developmental process homeostatic process hemopoiesis cell development erythrocyte differentiation multicellular organismal-level homeostasis myeloid cell differentiation immune system process cell differentiation anatomical structure development myeloid cell development homeostasis of number of cells myeloid cell homeostasis erythrocyte homeostasis 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 carbon dioxide transport renal system process renal absorption nitric oxide transport nitrogen compound transport defense response inflammatory response 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 oxidative stress response to chemical response to oxygen-containing compound response to reactive oxygen species 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 cellular anatomical structure intracellular anatomical structure hemoglobin complex cytoplasm cytosol haptoglobin-hemoglobin complex extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space protein-containing complex cellular anatomical structure intracellular anatomical structure hemoglobin complex cytoplasm 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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR009050	Globin-like superfamily	Homologous Superfamily
A, B, C, D	IPR012292	Globin/Protoglobin	Homologous Superfamily
A, B, C, D	IPR000971	Globin	Domain
A, B, C, D	IPR050056	Hemoglobin and related oxygen transporters	Family
A, B, C, D	IPR002337	Hemoglobin, beta-type	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: P68871	sickle cell anemia beta thalassemia dominant beta-thalassemia Heinz body anemia polycythemia methemoglobinemia alpha thalassemia echinococcosis acquired polycythemia vera malaria hemoglobin C disease Plasmodium falciparum malaria Cyanosis hemoglobin D disease congenital dyserythropoietic anemia sickle cell anemia beta thalassemia dominant beta-thalassemia Heinz body anemia polycythemia methemoglobinemia alpha thalassemia echinococcosis acquired polycythemia vera malaria hemoglobin C disease Plasmodium falciparum malaria Cyanosis hemoglobin D disease congenital dyserythropoietic anemia inherited hemoglobinopathy familial hemolytic anemia beta-thalassemia HBB/LCRB hemoglobin E disease hemoglobin E-beta-thalassemia syndrome juvenile dermatomyositis lung adenocarcinoma delta-beta-thalassemia lymphoplasmacytic lymphoma malignant ependymoma MALT lymphoma myopathy anemia gastric cancer pancreatic ductal adenocarcinoma atypical teratoid rhabdoid tumor pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia beta-thalassemia major hemoglobin M disease cerebrovascular disorder hereditary persistence of fetal hemoglobin sickle cell-hemoglobin E disease syndrome large cell medulloblastoma thalassemia minor lung cancer diabetes mellitus Duchenne muscular dystrophy malignant glioma medulloblastoma acute myeloid leukemia non-small cell lung carcinoma gastric carcinoma pancreatic intraductal papillary-mucinous carcinoma B-cell chronic lymphocytic leukemia periodontitis breast cancer hemolytic anemia sickle cell-hemoglobin c disease syndrome hereditary persistence of fetal hemoglobin-beta-thalassemia syndrome thalassemia invasive ductal breast carcinoma limb-girdle muscular dystrophy tuberculosis lung carcinoma malignant colon neoplasm ductal breast carcinoma in situ malignant pancreatic neoplasm exocrine pancreatic carcinoma familial polycythemia ovarian cancer atopic eczema head and neck cancer pancreatic intraductal papillary-mucinous neoplasm hemoglobin C-beta-thalassemia syndrome beta-thalassemia intermedia breast carcinoma hepatocellular carcinoma sickle cell-hemoglobin d disease syndrome congenital anemia hypophosphatemic bone disease

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.