Annotations: 2O27

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d2o27b_	All alpha proteins	4-helical cytokines	4-helical cytokines	Short-chain cytokines	automated matches	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d2o27a_	All alpha proteins	4-helical cytokines	4-helical cytokines	Short-chain cytokines	automated matches	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	4-helical cytokines	8078499	3001717	SCOP2B (2021-05-27)
A	SCOP2B Superfamily	4-helical cytokines	8078499	3001717	SCOP2B (2021-05-27)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	PF02404	e2o27B1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF02404	ECOD (1.6)
A	PF02404	e2o27A1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: 4-helical cytokines (From Topology)	T: 4-helical cytokines	F: PF02404	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Kit ligand	protein binding binding molecular function activator activity signaling receptor binding molecular function regulator activity signaling receptor regulator activity growth factor activity receptor ligand activity signaling receptor activator activity stem cell factor receptor binding cytokine receptor binding cytokine activity	developmental process multicellular organismal process gonad development reproductive system development reproductive process sex differentiation animal organ development developmental process involved in reproduction male gonad development male sex differentiation multicellular organism development development of primary male sexual characteristics development of primary sexual characteristics anatomical structure development reproductive structure development developmental process multicellular organismal process gonad development reproductive system development reproductive process sex differentiation animal organ development developmental process involved in reproduction male gonad development male sex differentiation multicellular organism development development of primary male sexual characteristics development of primary sexual characteristics anatomical structure development reproductive structure development system development leukocyte migration immune system process mast cell migration myeloid leukocyte migration cell migration cellular process cell motility regulation of cellular process homeostatic process leukocyte apoptotic process negative regulation of mast cell apoptotic process negative regulation of biological process regulation of programmed cell death negative regulation of leukocyte apoptotic process mast cell homeostasis negative regulation of cellular process regulation of immune system process myeloid cell homeostasis regulation of leukocyte apoptotic process myeloid cell apoptotic process regulation of biological process negative regulation of programmed cell death regulation of apoptotic process biological regulation cell death mast cell apoptotic process negative regulation of apoptotic process multicellular organismal-level homeostasis leukocyte homeostasis negative regulation of immune system process regulation of mast cell apoptotic process negative regulation of myeloid cell apoptotic process homeostasis of number of cells apoptotic process programmed cell death regulation of myeloid cell apoptotic process epithelium migration tissue migration ameboidal-type cell migration epithelial cell migration melanocyte migration sexual reproduction cellular developmental process multicellular organismal reproductive process cell development cellular process involved in reproduction in multicellular organism gamete generation cell differentiation germ cell development cell population proliferation myeloid leukocyte differentiation regulation of leukocyte differentiation regulation of developmental process positive regulation of biological process regulation of cell differentiation regulation of cell development positive regulation of developmental process positive regulation of cell differentiation positive regulation of hemopoiesis regulation of multicellular organismal process positive regulation of immune system process positive regulation of cellular process regulation of multicellular organismal development hemopoiesis regulation of myeloid cell differentiation positive regulation of cell development regulation of myeloid leukocyte differentiation positive regulation of myeloid leukocyte differentiation myeloid cell differentiation positive regulation of myeloid cell differentiation regulation of hemopoiesis positive regulation of multicellular organismal process positive regulation of leukocyte differentiation leukocyte differentiation positive regulation of mast cell proliferation regulation of leukocyte proliferation positive regulation of cell population proliferation leukocyte proliferation regulation of mast cell proliferation regulation of cell population proliferation positive regulation of leukocyte proliferation mast cell proliferation stem cell development neural crest cell differentiation neural crest cell development mesenchyme development tissue development mesenchymal cell migration stem cell differentiation mesenchymal cell differentiation neural crest cell migration cellular response to stimulus small GTPase-mediated signal transduction response to stimulus signaling Ras protein signal transduction intracellular signal transduction cell communication intracellular signaling cassette signal transduction signal transduction in absence of ligand cell surface receptor signaling pathway extrinsic apoptotic signaling pathway apoptotic signaling pathway extrinsic apoptotic signaling pathway in absence of ligand embryo development embryonic hemopoiesis embryonic organ development positive regulation of locomotion regulation of cell motility regulation of leukocyte migration positive regulation of leukocyte migration positive regulation of cell migration regulation of locomotion positive regulation of cell motility regulation of cell migration locomotion cell activation lymphocyte activation leukocyte activation mononuclear cell proliferation T cell activation lymphocyte proliferation T cell proliferation female gonad development female sex differentiation development of primary female sexual characteristics ovarian follicle development cell adhesion programmed cell death involved in cell development ectopic germ cell programmed cell death positive regulation of melanocyte differentiation pigment cell differentiation developmental pigmentation regulation of pigment cell differentiation regulation of pigmentation pigmentation positive regulation of developmental pigmentation regulation of melanocyte differentiation positive regulation of pigment cell differentiation regulation of developmental pigmentation melanocyte differentiation regulation of hematopoietic progenitor cell differentiation positive regulation of hematopoietic progenitor cell differentiation hematopoietic progenitor cell differentiation regulation of stem cell proliferation positive regulation of stem cell proliferation stem cell proliferation positive regulation of hematopoietic stem cell proliferation hematopoietic stem cell proliferation regulation of hematopoietic stem cell proliferation regulation of leukocyte activation regulation of cell activation positive regulation of cell activation positive regulation of leukocyte activation positive regulation of T cell activation positive regulation of lymphocyte proliferation positive regulation of T cell proliferation regulation of leukocyte cell-cell adhesion positive regulation of leukocyte cell-cell adhesion leukocyte cell-cell adhesion positive regulation of cell-cell adhesion positive regulation of lymphocyte activation cell-cell adhesion positive regulation of mononuclear cell proliferation regulation of cell-cell adhesion regulation of lymphocyte proliferation positive regulation of cell adhesion regulation of cell adhesion regulation of T cell activation regulation of T cell proliferation regulation of mononuclear cell proliferation regulation of lymphocyte activation response to chemical response to organic cyclic compound positive regulation of cell communication positive regulation of signal transduction regulation of small GTPase mediated signal transduction regulation of signal transduction positive regulation of response to stimulus regulation of intracellular signal transduction regulation of Ras protein signal transduction positive regulation of Ras protein signal transduction regulation of signaling positive regulation of intracellular signal transduction regulation of response to stimulus regulation of cell communication positive regulation of small GTPase mediated signal transduction positive regulation of signaling regulation of protein modification process positive regulation of phosphorylation regulation of protein phosphorylation positive regulation of protein metabolic process positive regulation of cellular metabolic process peptidyl-tyrosine modification positive regulation of phosphate metabolic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of peptidyl-tyrosine phosphorylation positive regulation of protein modification process regulation of phosphate metabolic process peptidyl-amino acid modification phosphate-containing compound metabolic process positive regulation of macromolecule metabolic process protein metabolic process protein modification process phosphorus metabolic process positive regulation of protein phosphorylation organonitrogen compound metabolic process protein phosphorylation positive regulation of phosphorus metabolic process phosphorylation cellular metabolic process regulation of protein metabolic process regulation of peptidyl-tyrosine phosphorylation primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process macromolecule modification metabolic process regulation of phosphorylation regulation of phosphorus metabolic process macromolecule metabolic process peptidyl-tyrosine phosphorylation regulation of metabolic process	cell projection cell leading edge cellular anatomical entity plasma membrane bounded cell projection lamellipodium membrane cell periphery plasma membrane intracellular anatomical structure cytoplasm intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle cell projection cell leading edge cellular anatomical entity plasma membrane bounded cell projection lamellipodium membrane cell periphery plasma membrane intracellular anatomical structure cytoplasm intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle non-membrane-bounded organelle extracellular region extracellular space actin-based cell projection filopodium

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR003452	Stem cell factor	Family
A, B	IPR009079	Four-helical cytokine-like, core	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 R01GM133198.