Annotations: 1Y1U

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	STAT_bind_N	e1y1uA4	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Common fold of diphtheria toxin/transcription factors/cytochrome f	F: STAT_bind_N	ECOD (1.6)
A	STAT_bind_C	e1y1uA1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: STAT_bind_C	ECOD (1.6)
A	STAT_alpha	e1y1uA2	A: alpha bundles	X: STAT-like	H: STAT (From Topology)	T: STAT	F: STAT_alpha	ECOD (1.6)
A	SH2	e1y1uA3	A: a+b two layers	X: SH2 (From Topology)	H: SH2 (From Topology)	T: SH2	F: SH2	ECOD (1.6)
B	STAT_bind_N	e1y1uB4	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Common fold of diphtheria toxin/transcription factors/cytochrome f	F: STAT_bind_N	ECOD (1.6)
B	STAT_bind_C	e1y1uB1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: STAT_bind_C	ECOD (1.6)
B	STAT_alpha	e1y1uB2	A: alpha bundles	X: STAT-like	H: STAT (From Topology)	T: STAT	F: STAT_alpha	ECOD (1.6)
B	SH2	e1y1uB3	A: a+b two layers	X: SH2 (From Topology)	H: SH2 (From Topology)	T: SH2	F: SH2	ECOD (1.6)
C	STAT_bind_N	e1y1uC2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Common fold of diphtheria toxin/transcription factors/cytochrome f	F: STAT_bind_N	ECOD (1.6)
C	STAT_bind_C	e1y1uC4	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: STAT_bind_C	ECOD (1.6)
C	STAT_alpha	e1y1uC3	A: alpha bundles	X: STAT-like	H: STAT (From Topology)	T: STAT	F: STAT_alpha	ECOD (1.6)
C	SH2	e1y1uC1	A: a+b two layers	X: SH2 (From Topology)	H: SH2 (From Topology)	T: SH2	F: SH2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1050.20	Mainly Alpha	Up-down Bundle	Glutathione S-transferase Yfyf (Class Pi)	Chain A, domain 2	CATH (4.3.0)
A	2.60.40.630	Mainly Beta	Sandwich	Immunoglobulin-like	STAT transcription factor, DNA-binding domain	CATH (4.3.0)
A	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)
A	3.30.505.10	Alpha Beta	2-Layer Sandwich	SHC Adaptor Protein	SH2 domain	CATH (4.3.0)
B	1.20.1050.20	Mainly Alpha	Up-down Bundle	Glutathione S-transferase Yfyf (Class Pi)	Chain A, domain 2	CATH (4.3.0)
B	2.60.40.630	Mainly Beta	Sandwich	Immunoglobulin-like	STAT transcription factor, DNA-binding domain	CATH (4.3.0)
B	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)
B	3.30.505.10	Alpha Beta	2-Layer Sandwich	SHC Adaptor Protein	SH2 domain	CATH (4.3.0)
C	1.20.1050.20	Mainly Alpha	Up-down Bundle	Glutathione S-transferase Yfyf (Class Pi)	Chain A, domain 2	CATH (4.3.0)
C	2.60.40.630	Mainly Beta	Sandwich	Immunoglobulin-like	STAT transcription factor, DNA-binding domain	CATH (4.3.0)
C	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)
C	3.30.505.10	Alpha Beta	2-Layer Sandwich	SHC Adaptor Protein	SH2 domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00017	SH2 domain (SH2)	SH2 domain	-	Domain
A, B, C	PF21354	Signal transducer and activator of transcription, linker domain (STAT_linker)	Signal transducer and activator of transcription, linker domain	This domain is found in Signal transducer and activator of transcription proteins (STAT) from animals. These proteins are activated in response to extracellular signals such as cytokines, growth factors and hormonal factors and translocate to the nuc ...	This domain is found in Signal transducer and activator of transcription proteins (STAT) from animals. These proteins are activated in response to extracellular signals such as cytokines, growth factors and hormonal factors and translocate to the nucleus, where they bind to specific promoter sequences in target genes. This entry represents the all-helical linker domain that connects the DNA binding domain (Pfam:PF02864) and the SH2 domain (Pfam:PF00017) [1-5].	Domain
A, B, C	PF01017	STAT protein, all-alpha domain (STAT_alpha)	STAT protein, all-alpha domain	-	Family
A, B, C	PF02864	STAT protein, DNA binding domain (STAT_bind)	STAT protein, DNA binding domain	STAT proteins (Signal Transducers and Activators of Transcription) are a family of transcription factors that are specifically activated to regulate gene transcription when cells encounter cytokines and growth factors. This family represents the DNA ...	STAT proteins (Signal Transducers and Activators of Transcription) are a family of transcription factors that are specifically activated to regulate gene transcription when cells encounter cytokines and growth factors. This family represents the DNA binding domain of STAT, which has an ig-like fold. STAT proteins also include an SH2 domain Pfam:PF00017.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Signal transducer and activator of transcription 5A	sequence-specific DNA binding DNA binding binding organic cyclic compound binding nucleic acid binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity DNA-binding transcription activator activity, RNA polymerase II-specific DNA-binding transcription activator activity double-stranded DNA binding RNA polymerase II transcription regulatory region sequence-specific DNA binding cis-regulatory region sequence-specific DNA binding sequence-specific double-stranded DNA binding sequence-specific DNA binding DNA binding binding organic cyclic compound binding nucleic acid binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity DNA-binding transcription activator activity, RNA polymerase II-specific DNA-binding transcription activator activity double-stranded DNA binding RNA polymerase II transcription regulatory region sequence-specific DNA binding cis-regulatory region sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding transcription regulatory region nucleic acid binding RNA polymerase II cis-regulatory region sequence-specific DNA binding ion binding anion binding phosphate ion binding small molecule binding	cellular response to stimulus cellular response to nitrogen compound regulation of cellular process response to stimulus signaling response to peptide hormone cellular response to growth hormone stimulus cell surface receptor protein tyrosine kinase signaling pathway cell communication cellular response to endogenous stimulus response to hormone growth hormone receptor signaling pathway via JAK-STAT signal transduction enzyme-linked receptor protein signaling pathway cellular response to stimulus cellular response to nitrogen compound regulation of cellular process response to stimulus signaling response to peptide hormone cellular response to growth hormone stimulus cell surface receptor protein tyrosine kinase signaling pathway cell communication cellular response to endogenous stimulus response to hormone growth hormone receptor signaling pathway via JAK-STAT signal transduction enzyme-linked receptor protein signaling pathway cellular response to hormone stimulus regulation of biological process growth hormone receptor signaling pathway cell surface receptor signaling pathway response to endogenous stimulus biological regulation cellular response to peptide hormone stimulus response to oxygen-containing compound response to nitrogen compound cellular response to oxygen-containing compound response to growth hormone cellular response to chemical stimulus response to chemical cellular process cell adhesion regulation of cell adhesion response to cytokine cytokine-mediated signaling pathway response to peptide cellular response to cytokine stimulus developmental process epithelial cell differentiation involved in prostate gland development multicellular organismal process epithelium development reproductive system development cellular developmental process prostate gland development reproductive process gland development animal organ development urogenital system development tissue development developmental process involved in reproduction epithelial cell differentiation multicellular organism development cell differentiation anatomical structure development reproductive structure development system development regulation of defense response regulation of response to external stimulus defense response positive regulation of biological process response to external stimulus regulation of inflammatory response positive regulation of response to stimulus positive regulation of response to external stimulus positive regulation of inflammatory response regulation of response to stimulus regulation of response to stress response to stress positive regulation of defense response inflammatory response mammary gland epithelium development mammary gland development regulation of developmental process homeostatic process negative regulation of biological process cell development regulation of cell differentiation regulation of cell development negative regulation of erythrocyte differentiation negative regulation of cellular process negative regulation of cell differentiation regulation of immune system process regulation of multicellular organismal process myeloid cell homeostasis erythrocyte homeostasis regulation of multicellular organismal development negative regulation of developmental process hemopoiesis regulation of myeloid cell differentiation negative regulation of myeloid cell differentiation erythrocyte differentiation regulation of erythrocyte differentiation multicellular organismal-level homeostasis myeloid cell differentiation immune system process regulation of hemopoiesis homeostasis of number of cells cell population proliferation development of secondary female sexual characteristics development of secondary sexual characteristics myeloid leukocyte differentiation mast cell 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 positive regulation of cellular process mast cell proliferation regulation of multicellular organism growth regulation of growth regulation of developmental growth developmental growth growth multicellular organism growth cell activation mononuclear cell differentiation lymphocyte activation lymphocyte differentiation leukocyte activation T cell differentiation in thymus T cell activation T cell differentiation mononuclear cell proliferation lymphocyte proliferation T cell proliferation cell surface receptor signaling pathway via STAT cell surface receptor signaling pathway via JAK-STAT reelin-mediated signaling pathway regulation of body fluid levels secretion transport establishment of localization body fluid secretion localization lactation regulation of biological quality myeloid cell apoptotic process apoptotic process cell death programmed cell death regulation of steroid metabolic process steroid metabolic process regulation of lipid metabolic process primary metabolic process regulation of primary metabolic process metabolic process regulation of metabolic process lipid metabolic process morphogenesis of an epithelium prostate gland epithelium morphogenesis prostate gland morphogenesis tissue morphogenesis anatomical structure morphogenesis gland morphogenesis animal organ morphogenesis regulation of leukocyte differentiation regulation of leukocyte activation regulation of cell activation positive regulation of B cell differentiation positive regulation of developmental process positive regulation of cell activation positive regulation of leukocyte activation positive regulation of immune system process positive regulation of cell development positive regulation of multicellular organismal process positive regulation of lymphocyte activation regulation of B cell differentiation B cell differentiation positive regulation of hemopoiesis positive regulation of cell differentiation regulation of B cell activation regulation of lymphocyte differentiation B cell activation positive regulation of B cell activation positive regulation of leukocyte differentiation positive regulation of lymphocyte differentiation regulation of lymphocyte activation natural killer cell activation natural killer cell differentiation 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 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 T cell activation regulation of T cell proliferation regulation of mononuclear cell proliferation positive regulation of mast cell differentiation regulation of mast cell differentiation regulation of myeloid leukocyte differentiation positive regulation of myeloid leukocyte differentiation positive regulation of myeloid cell differentiation positive regulation of DNA-templated transcription RNA metabolic process positive regulation of macromolecule biosynthetic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of transcription by RNA polymerase II positive regulation of nucleobase-containing compound metabolic process regulation of macromolecule metabolic process positive regulation of transcription by RNA polymerase II nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process regulation of gene expression biosynthetic process positive regulation of RNA biosynthetic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription cellular response to organic cyclic compound response to organic cyclic compound regulation of immune effector process lymphocyte mediated immunity positive regulation of leukocyte mediated immunity positive regulation of response to biotic stimulus response to biotic stimulus positive regulation of leukocyte mediated cytotoxicity positive regulation of immune response positive regulation of natural killer cell mediated immunity leukocyte mediated immunity natural killer cell mediated immunity regulation of natural killer cell mediated immunity immune response response to other organism regulation of innate immune response leukocyte mediated cytotoxicity immune effector process regulation of leukocyte mediated immunity defense response to other organism natural killer cell mediated cytotoxicity regulation of immune response positive regulation of natural killer cell mediated cytotoxicity regulation of cell killing positive regulation of cell killing regulation of response to biotic stimulus regulation of natural killer cell mediated cytotoxicity biological process involved in interspecies interaction between organisms positive regulation of lymphocyte mediated immunity innate immune response positive regulation of immune effector process response to external biotic stimulus positive regulation of innate immune response regulation of leukocyte mediated cytotoxicity defense response to symbiont regulation of lymphocyte mediated immunity cell killing cell cycle mitotic cell cycle leukocyte apoptotic process negative regulation of mast cell apoptotic process regulation of programmed cell death negative regulation of leukocyte apoptotic process mast cell homeostasis regulation of leukocyte apoptotic process negative regulation of programmed cell death regulation of apoptotic process mast cell apoptotic process negative regulation of apoptotic process leukocyte homeostasis negative regulation of immune system process regulation of mast cell apoptotic process negative regulation of myeloid cell apoptotic process regulation of myeloid cell apoptotic process positive regulation of T cell differentiation gamma-delta T cell activation regulation of gamma-delta T cell differentiation regulation of T cell differentiation regulation of gamma-delta T cell activation positive regulation of gamma-delta T cell differentiation gamma-delta T cell differentiation positive regulation of gamma-delta T cell activation multi-multicellular organism process female pregnancy multi-organism reproductive process T cell homeostasis lymphocyte homeostasis regulation of natural killer cell activation positive regulation of natural killer cell activation regulation of natural killer cell differentiation positive regulation of natural killer cell differentiation response to granulocyte macrophage colony-stimulating factor cellular response to granulocyte macrophage colony-stimulating factor stimulus positive regulation of activated T cell proliferation regulation of activated T cell proliferation activated T cell proliferation regulation of cytokine production cytokine production regulation of interleukin-2 production interleukin-2 production positive regulation of interleukin-2 production positive regulation of gene expression positive regulation of cytokine production macromolecule localization lipid storage lipid localization maintenance of location positive regulation of multicellular organism growth positive regulation of growth positive regulation of developmental growth taurine metabolic process small molecule metabolic process sulfur compound metabolic process organic acid metabolic process alkanesulfonate metabolic process male sex differentiation sex differentiation development of secondary male sexual characteristics positive regulation of cell cycle regulation of mitotic cell cycle positive regulation of mitotic cell cycle regulation of cell cycle immune system development hematopoietic or lymphoid organ development Peyer's patch development mucosa-associated lymphoid tissue development regulation of epithelial cell differentiation rhythmic process ovulation cycle process gonad development luteinization female gonad development multicellular organismal reproductive process female sex differentiation development of primary female sexual characteristics ovulation cycle development of primary sexual characteristics	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR048988	Signal transducer and activator of transcription, linker domain	Domain
A, B, C	IPR036535	STAT transcription factor, N-terminal domain superfamily	Homologous Superfamily
A, B, C	IPR013800	STAT transcription factor, all-alpha domain	Domain
A, B, C	IPR036860	SH2 domain superfamily	Homologous Superfamily
A, B, C	IPR000980	SH2 domain	Domain
A, B, C	IPR001217	Transcription factor STAT	Family
A, B, C	IPR046994	STAT5a/5b, coiled-coil domain	Domain
A, B, C	IPR008967	p53-like transcription factor, DNA-binding domain superfamily	Homologous Superfamily
A, B, C	IPR013799	STAT transcription factor, protein interaction	Domain
A, B, C	IPR015988	STAT transcription factor, coiled coil	Homologous Superfamily
A, B, C	IPR035858	STAT5a/5b, DNA-binding domain	Domain
A, B, C	IPR013801	STAT transcription factor, DNA-binding	Domain
A, B, C	IPR012345	STAT transcription factor, DNA-binding, N-terminal	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.