Annotations: 4NK2

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Bac_globin	e4nk2B1	A: alpha arrays	X: Globin-like (From Topology)	H: Globin-like (From Topology)	T: Globin-like	F: Bac_globin	ECOD (1.6)
A	Bac_globin	e4nk2A1	A: alpha arrays	X: Globin-like (From Topology)	H: Globin-like (From Topology)	T: Globin-like	F: Bac_globin	ECOD (1.6)

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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	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, B	Hemoglobin-like protein	oxygen binding binding small molecule binding oxygen carrier activity molecular carrier activity tetrapyrrole binding heme binding cation binding ion binding metal ion binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

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