Annotations: 1CNT

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth 1]	d1cnt1_	All alpha proteins	4-helical cytokines	4-helical cytokines	Long-chain cytokines	Ciliary neurotrophic factor (CNTF)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth 2]	d1cnt2_	All alpha proteins	4-helical cytokines	4-helical cytokines	Long-chain cytokines	Ciliary neurotrophic factor (CNTF)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C [auth 3]	d1cnt3_	All alpha proteins	4-helical cytokines	4-helical cytokines	Long-chain cytokines	Ciliary neurotrophic factor (CNTF)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D [auth 4]	d1cnt4_	All alpha proteins	4-helical cytokines	4-helical cytokines	Long-chain cytokines	Ciliary neurotrophic factor (CNTF)	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 [auth 1]	SCOP2 Family	Long-chain cytokines	8024700	4000851	SCOP2 (2022-06-29)
A [auth 1]	SCOP2 Superfamily	4-helical cytokines	8037079	3001717	SCOP2 (2022-06-29)
C [auth 3]	SCOP2B Superfamily	4-helical cytokines	8037079	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 [auth 1]	PF01110	e1cnt11	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF01110	ECOD (1.6)
B [auth 2]	PF01110	e1cnt22	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF01110	ECOD (1.6)
C [auth 3]	PF01110	e1cnt31	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF01110	ECOD (1.6)
D [auth 4]	PF01110	e1cnt42	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF01110	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth 1]	1.20.1250.10	Mainly Alpha	Up-down Bundle	Growth Hormone	Chain: A	CATH (4.3.0)
B [auth 2]	1.20.1250.10	Mainly Alpha	Up-down Bundle	Growth Hormone	Chain: A	CATH (4.3.0)
C [auth 3]	1.20.1250.10	Mainly Alpha	Up-down Bundle	Growth Hormone	Chain: A	CATH (4.3.0)
D [auth 4]	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 [auth 1], B [auth 2], C [auth 3], D [auth 4]	PF01110	Ciliary neurotrophic factor (CNTF)	Ciliary neurotrophic factor	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth 1], B [auth 2], C [auth 3], D [auth 4]	CILIARY NEUROTROPHIC FACTOR	ciliary neurotrophic factor receptor binding protein binding binding signaling receptor binding cytokine receptor binding interleukin-6 receptor binding growth factor receptor binding molecular function activator activity molecular function regulator activity cytokine activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity protein-containing complex binding ciliary neurotrophic factor receptor binding protein binding binding signaling receptor binding cytokine receptor binding interleukin-6 receptor binding growth factor receptor binding molecular function activator activity molecular function regulator activity cytokine activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity protein-containing complex binding growth factor activity	multicellular organismal process regulation of cellular process cellular developmental process regulation of developmental process photoreceptor cell differentiation negative regulation of biological process regulation of cell differentiation neurogenesis multicellular organism development neuron differentiation cell differentiation anatomical structure development negative regulation of cellular process regulation of multicellular organismal process multicellular organismal process regulation of cellular process cellular developmental process regulation of developmental process photoreceptor cell differentiation negative regulation of biological process regulation of cell differentiation neurogenesis multicellular organism development neuron differentiation cell differentiation anatomical structure development negative regulation of cellular process regulation of multicellular organismal process negative regulation of cell differentiation system development developmental process regulation of biological process negative regulation of developmental process biological regulation nervous system development regulation of photoreceptor cell differentiation generation of neurons cellular process negative regulation of photoreceptor cell differentiation negative regulation of multicellular organismal process negative regulation of neuron differentiation regulation of neuron differentiation cellular response to stimulus response to stimulus cell projection organization positive regulation of neuron projection regeneration regulation of cellular response to stress neuron projection development regeneration neuron projection regeneration positive regulation of developmental process positive regulation of cell projection organization response to wounding positive regulation of response to wounding regulation of axon regeneration regulation of cell projection organization response to external stimulus regulation of response to stimulus regulation of neuron projection regeneration regulation of neuron projection development regulation of cellular component organization positive regulation of cellular component organization regulation of response to external stimulus positive regulation of biological process cell development response to axon injury regulation of response to wounding positive regulation of response to stimulus cellular component organization positive regulation of response to external stimulus cellular response to stress axon regeneration positive regulation of neuron projection development response to stress regulation of response to stress cellular component organization or biogenesis positive regulation of cellular process plasma membrane bounded cell projection organization axon development neuron development positive regulation of axon regeneration regulation of plasma membrane bounded cell projection organization cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation muscle structure development anatomical structure morphogenesis animal organ development animal organ morphogenesis muscle organ development muscle organ morphogenesis astrocyte differentiation astrocyte activation glial cell development astrocyte development gliogenesis defense response cell activation central nervous system development glial cell differentiation glial cell activation inflammatory response neuroinflammatory response sensory organ development visual system development retina development in camera-type eye neural retina development eye morphogenesis eye photoreceptor cell differentiation sensory system development camera-type eye morphogenesis eye development camera-type eye photoreceptor cell differentiation retina morphogenesis in camera-type eye sensory organ morphogenesis camera-type eye development retinal rod cell differentiation positive regulation of phosphorylation positive regulation of phosphate metabolic process cell communication regulation of primary metabolic process positive regulation of metabolic process regulation of phosphate metabolic process peptidyl-amino acid modification phosphate-containing compound metabolic process positive regulation of macromolecule metabolic process signal transduction protein modification process phosphorus metabolic process positive regulation of protein phosphorylation tyrosine phosphorylation of STAT protein protein phosphorylation positive regulation of phosphorus metabolic process phosphorylation cellular metabolic process regulation of protein metabolic process primary metabolic process regulation of cellular metabolic process macromolecule modification metabolic process regulation of phosphorus metabolic process macromolecule metabolic process regulation of metabolic process cell surface receptor signaling pathway via STAT regulation of protein modification process signaling regulation of protein phosphorylation positive regulation of protein metabolic process positive regulation of cellular metabolic process peptidyl-tyrosine modification positive regulation of peptidyl-tyrosine phosphorylation positive regulation of protein modification process organic substance metabolic process protein metabolic process organonitrogen compound metabolic process cell surface receptor signaling pathway regulation of tyrosine phosphorylation of STAT protein regulation of peptidyl-tyrosine phosphorylation regulation of macromolecule metabolic process positive regulation of tyrosine phosphorylation of STAT protein regulation of phosphorylation peptidyl-tyrosine phosphorylation cell surface receptor signaling pathway via JAK-STAT regulation of programmed cell death regulation of retinal cell programmed cell death cell death programmed cell death involved in cell development retinal cell programmed cell death programmed cell death cellular biosynthetic process positive regulation of macromolecule biosynthetic process positive regulation of biosynthetic process organic substance biosynthetic process regulation of biosynthetic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process positive regulation of gene expression regulation of macromolecule biosynthetic process positive regulation of cellular biosynthetic process response to organic substance response to cytokine cytokine-mediated signaling pathway ciliary neurotrophic factor-mediated signaling pathway cellular response to chemical stimulus response to chemical cellular response to cytokine stimulus cellular response to organic substance neuron apoptotic process negative regulation of neuron apoptotic process negative regulation of programmed cell death regulation of apoptotic process negative regulation of apoptotic process apoptotic process regulation of neuron apoptotic process	extracellular region cellular anatomical entity axon cell projection neuron projection plasma membrane bounded cell projection intracellular anatomical structure cytoplasm extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth 1], B [auth 2], C [auth 3], D [auth 4]	IPR000151	Ciliary neurotrophic factor, CNTF	Family
A [auth 1], B [auth 2], C [auth 3], D [auth 4]	IPR009079	Four-helical cytokine-like, core	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth 1], B [auth 2], C [auth 3], D [auth 4]	Pharos: P26441	amyotrophic lateral sclerosis type 1 Nerve Degeneration intracerebral hemorrhage neurodegenerative disease depressive disorder schizophrenia inflammatory bowel disease ulcerative colitis

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.