Annotations: 4C44

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	V-set	e4c44A1	A: alpha bundles	X: DP domain	H: DP domain	T: DP domain	F: V-set	ECOD (develop294)

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 (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01152	Bacterial-like globin (Bac_globin)	Bacterial-like globin	This family of heme binding proteins are found mainly in bacteria. However they can also be found in some protozoa and plants as well.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	2-ON-2 HEMOGLOBIN	oxygen binding binding small molecule binding oxygen carrier activity molecular carrier activity tetrapyrrole binding heme binding cation binding ion binding metal ion binding	oxygen transport localization transport gas transport establishment of localization response to auxin response to stimulus response to hormone response to endogenous stimulus response to chemical response to decreased oxygen levels response to hypoxia response to stress response to oxygen levels oxygen transport localization transport gas transport establishment of localization response to auxin response to stimulus response to hormone response to endogenous stimulus response to chemical response to decreased oxygen levels response to hypoxia response to stress response to oxygen levels response to abiotic stimulus	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001486	Truncated hemoglobin	Family
A	IPR044203	Group 2 truncated hemoglobin GlbO/Two-on-two hemoglobin-3-like	Family
A	IPR009050	Globin-like superfamily	Homologous Superfamily
A	IPR012292	Globin/Protoglobin	Homologous Superfamily

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.