Annotations: 1YKB

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1ykba_	All alpha proteins	4-helical cytokines	4-helical cytokines	Interferons/interleukin-10 (IL-10)	Interleukin-22 (IL-22)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1ykbb_	All alpha proteins	4-helical cytokines	4-helical cytokines	Interferons/interleukin-10 (IL-10)	Interleukin-22 (IL-22)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d1ykbc_	All alpha proteins	4-helical cytokines	4-helical cytokines	Interferons/interleukin-10 (IL-10)	Interleukin-22 (IL-22)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d1ykbd_	All alpha proteins	4-helical cytokines	4-helical cytokines	Interferons/interleukin-10 (IL-10)	Interleukin-22 (IL-22)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
E	d1ykbe_	All alpha proteins	4-helical cytokines	4-helical cytokines	Interferons/interleukin-10 (IL-10)	Interleukin-22 (IL-22)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
F	d1ykbf_	All alpha proteins	4-helical cytokines	4-helical cytokines	Interferons/interleukin-10 (IL-10)	Interleukin-22 (IL-22)	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	4-helical cytokines	8032690	3001717	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	4-helical cytokines	8032690	3001717	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	4-helical cytokines	8032690	3001717	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	4-helical cytokines	8032690	3001717	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	4-helical cytokines	8032690	3001717	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	4-helical cytokines	8032690	3001717	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	PF14565	e1ykbA1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF14565	ECOD (1.6)
B	PF14565	e1ykbB1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF14565	ECOD (1.6)
C	PF14565	e1ykbC1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF14565	ECOD (1.6)
D	PF14565	e1ykbD1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF14565	ECOD (1.6)
E	PF14565	e1ykbE1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF14565	ECOD (1.6)
F	PF14565	e1ykbF1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF14565	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)
C	1.20.1250.10	Mainly Alpha	Up-down Bundle	Growth Hormone	Chain: A	CATH (4.3.0)
D	1.20.1250.10	Mainly Alpha	Up-down Bundle	Growth Hormone	Chain: A	CATH (4.3.0)
E	1.20.1250.10	Mainly Alpha	Up-down Bundle	Growth Hormone	Chain: A	CATH (4.3.0)
F	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, C, D, E A, B, C, D, E, F	PF14565	Interleukin 22 IL-10-related T-cell-derived-inducible factor (IL22)	Interleukin 22 IL-10-related T-cell-derived-inducible factor	Interleukin-22 is distantly related to interleukin (IL)-10, and is produced by activated T cells. IL-22 is a ligand for CRF2-4, a member of the class II cytokine receptor family.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F	PROTEIN (Interleukin-22)	protein binding binding interleukin-22 receptor binding signaling receptor binding cytokine receptor binding molecular function activator activity molecular function regulator activity cytokine activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	response to stimulus defense response response to stress inflammatory response regulation of defense response regulation of biological process regulation of response to external stimulus negative regulation of inflammatory response negative regulation of response to stimulus biological regulation negative regulation of biological process response to external stimulus regulation of inflammatory response regulation of response to stimulus response to stimulus defense response response to stress inflammatory response regulation of defense response regulation of biological process regulation of response to external stimulus negative regulation of inflammatory response negative regulation of response to stimulus biological regulation negative regulation of biological process response to external stimulus regulation of inflammatory response regulation of response to stimulus negative regulation of response to external stimulus regulation of response to stress negative regulation of defense response acute-phase response acute inflammatory response response to corticosteroid response to organic substance response to lipid response to hormone response to steroid hormone response to chemical response to endogenous stimulus response to glucocorticoid response to organic cyclic compound	extracellular region cellular anatomical entity extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR009079	Four-helical cytokine-like, core	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR020453	Interleukin-22	Family
A, B, C, D, E A, B, C, D, E, F	IPR020423	Interleukin-10, conserved site	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D, E A, B, C, D, E, F	Pharos: Q9GZX6	autoimmune hepatitis middle cerebral artery infarction Thrombotic Infarction, Middle Cerebral Artery autoimmune disease drug-induced liver injury psoriasis inflammatory bowel 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 R01GM133198.