Annotations: 3PIV

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF00143	e3pivA1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF00143	ECOD (1.6)
B	PF00143	e3pivB1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF00143	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1250.10	Mainly Alpha	Up-down Bundle	Growth Hormone	Chain: A	CATH (4.3.0)
B	1.20.1250.10	Mainly Alpha	Up-down Bundle	Growth Hormone	Chain: A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00143	Interferon alpha/beta domain (Interferon)	Interferon alpha/beta domain	Type I interferons (alpha, beta) belong to the larger helical cytokine superfamily,which includes growth hormones, interleukins, several colony-stimulating factors and several other regulatory molecules.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Interferon	protein binding binding signaling receptor binding cytokine receptor binding	regulation of defense response regulation of response to biotic stimulus regulation of biological process biological process involved in interspecies interaction between organisms response to stimulus regulation of response to external stimulus response to other organism defense response biological regulation defense response to symbiont response to external stimulus response to biotic stimulus regulation of defense response to virus defense response to virus regulation of response to stimulus regulation of defense response regulation of response to biotic stimulus regulation of biological process biological process involved in interspecies interaction between organisms response to stimulus regulation of response to external stimulus response to other organism defense response biological regulation defense response to symbiont response to external stimulus response to biotic stimulus regulation of defense response to virus defense response to virus regulation of response to stimulus defense response to other organism response to stress regulation of response to stress regulation of defense response to virus by host response to external biotic stimulus response to virus defense response to bacterium response to bacterium response to chemical response to arsenic-containing substance response to organic substance response to dsRNA response to nitrogen compound response to exogenous dsRNA response to organic cyclic compound	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR009079	Four-helical cytokine-like, core	Homologous Superfamily
A, B	IPR000471	Interferon alpha/beta/delta	Family

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.