1GT0

Crystal structure of a POU/HMG/DNA ternary complex

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C	d1gt0c1	All alpha proteins	DNA/RNA-binding 3-helical bundle	Homeodomain-like	Homeodomain	Oct-1 POU Homeodomain	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d1gt0c2	All alpha proteins	lambda repressor-like DNA-binding domains	lambda repressor-like DNA-binding domains	POU-specific domain	Oct-1	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d1gt0d_	All alpha proteins	HMG-box	HMG-box	HMG-box	Sox-2	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)
C	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8017633	3000119	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Homeodomain-like	8017635	3000001	SCOP2B (2022-06-29)
D	SCOP2 Family	HMG-box	8029896	4000788	SCOP2 (2022-06-29)
D	SCOP2 Superfamily	HMG-box	8042275	3001368	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C	Homeobox	e1gt0C4	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: Homeobox	ECOD (1.6)
C	Pou	e1gt0C3	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: Pou	ECOD (1.6)
D	HMG_box	e1gt0D1	A: alpha arrays	X: HMG-box (From Topology)	H: HMG-box (From Topology)	T: HMG-box	F: HMG_box	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
C	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)
D	1.10.30.10	Mainly Alpha	Orthogonal Bundle	DNA Binding (I), subunit A	High mobility group box domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C	PF00046	Homeodomain (Homeodomain)	Homeodomain	-	Domain
C	PF00157	Pou domain - N-terminal to homeobox domain (Pou)	Pou domain - N-terminal to homeobox domain	-	Domain
D	PF00505	HMG (high mobility group) box (HMG_box)	HMG (high mobility group) box	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	5'-D(TPTPCPTPTPTPGPTPTPTP* GPGPAP* TPGPCPTPAPAPTPGPGPGPA)-3'	-	-	-
B	5'-D(APTPCPCPCPAPTPTPAPGP* CPAPTPCPCPAPAPAPCPAPAPAPGP*A)-3'	-	-	-
C	OCTAMER-BINDING TRANSCRIPTION FACTOR 1	DNA binding sequence-specific DNA binding binding double-stranded DNA binding nucleic acid 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 organic cyclic compound binding transcription regulatory region nucleic acid binding RNA polymerase II cis-regulatory region sequence-specific DNA binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA binding sequence-specific DNA binding binding double-stranded DNA binding nucleic acid 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 organic cyclic compound binding transcription regulatory region nucleic acid binding RNA polymerase II cis-regulatory region sequence-specific DNA binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity core promoter sequence-specific DNA binding RNA polymerase II core promoter sequence-specific DNA binding DNA-binding transcription activator activity, RNA polymerase II-specific DNA-binding transcription activator activity identical protein binding protein binding	regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of cellular process negative regulation of biological process RNA metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of DNA-templated transcription regulation of biological process negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process positive regulation of DNA-templated transcription positive regulation of biological process positive regulation of miRNA transcription positive regulation of miRNA metabolic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process miRNA transcription positive regulation of biosynthetic process regulation of miRNA metabolic process positive regulation of macromolecule metabolic process miRNA metabolic process positive regulation of cellular process positive regulation of nucleobase-containing compound metabolic process positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process regulation of miRNA transcription transcription by RNA polymerase II regulation of transcription by RNA polymerase II positive regulation of transcription by RNA polymerase II	RNA polymerase II transcription regulator complex membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex transcription regulator complex intracellular membrane-bounded organelle intracellular organelle cellular anatomical structure organelle membrane-enclosed lumen intracellular organelle lumen nucleoplasm RNA polymerase II transcription regulator complex membrane-bounded organelle protein-containing complex intracellular anatomical structure nucleus nuclear protein-containing complex transcription regulator complex intracellular membrane-bounded organelle intracellular organelle cellular anatomical structure organelle membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen membraneless organelle intracellular membraneless organelle chromatin chromosome endoplasmic reticulum cytoplasm endomembrane system
D	TRANSCRIPTION FACTOR SOX-2	DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding binding double-stranded DNA binding organic cyclic compound binding nucleic acid binding transcription regulatory region nucleic acid binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding binding double-stranded DNA binding organic cyclic compound binding nucleic acid binding transcription regulatory region nucleic acid binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding protein binding DNA-binding transcription factor binding RNA polymerase II transcription regulatory region sequence-specific DNA binding cis-regulatory region sequence-specific DNA binding RNA polymerase II cis-regulatory region sequence-specific DNA binding chromatin binding chromatin DNA binding	multicellular organismal process regulation of cellular process cellular developmental process regulation of developmental process 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 negative regulation of cell differentiation system development multicellular organismal process regulation of cellular process cellular developmental process regulation of developmental process 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 negative regulation of cell differentiation system development developmental process regulation of biological process negative regulation of developmental process biological regulation nervous system development generation of neurons cellular process negative regulation of neuron differentiation regulation of neuron differentiation cell fate specification cell fate commitment camera-type eye morphogenesis sensory organ development eye development animal organ development visual system development developmental induction eye morphogenesis anatomical structure morphogenesis lens morphogenesis in camera-type eye sensory organ morphogenesis lens induction in camera-type eye camera-type eye development animal organ morphogenesis sensory system development lens development in camera-type eye neuroblast proliferation cell population proliferation neural precursor cell proliferation head development forebrain development endocrine system development pituitary gland development gland development brain development diencephalon development central nervous system development adenohypophysis development regulation of multicellular organismal development cell development regulation of neurogenesis regulation of cell development regulation of nervous system development regulation of multicellular organismal process positive regulation of biological process epithelial cell differentiation regulation of epithelial cell differentiation positive regulation of developmental process positive regulation of cell differentiation positive regulation of cellular process epithelium development positive regulation of epithelial cell differentiation tissue development brain morphogenesis diencephalon morphogenesis forebrain morphogenesis tongue development cellular response to stimulus response to stimulus signaling negative regulation of signaling regulation of canonical Wnt signaling pathway canonical Wnt signaling pathway regulation of signal transduction negative regulation of cell communication cell communication negative regulation of Wnt signaling pathway signal transduction Wnt signaling pathway regulation of signaling cell surface receptor signaling pathway regulation of Wnt signaling pathway negative regulation of response to stimulus negative regulation of signal transduction negative regulation of canonical Wnt signaling pathway regulation of response to stimulus regulation of cell communication genitalia development reproductive system development reproductive process sex differentiation developmental process involved in reproduction male sex differentiation male genitalia development reproductive structure development embryonic organ development embryo development pallium development cerebral cortex development telencephalon development RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process maintenance of cell number stem cell population maintenance anatomical structure formation involved in morphogenesis system process sensory perception nervous system process sensory perception of sound sensory perception of mechanical stimulus somatic stem cell population maintenance negative regulation of RNA biosynthetic process transcription by RNA polymerase II negative regulation of nucleobase-containing compound metabolic process negative regulation of macromolecule metabolic process regulation of transcription by RNA polymerase II negative regulation of DNA-templated transcription negative regulation of transcription by RNA polymerase II negative regulation of metabolic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of RNA metabolic process cellular response to metal ion cellular response to chemical stimulus response to metal ion response to chemical cellular response to cadmium ion response to cadmium ion Notch signaling pathway positive regulation of DNA-templated transcription positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of biosynthetic process positive regulation of macromolecule metabolic process positive regulation of nucleobase-containing compound metabolic process positive regulation of transcription by RNA polymerase II positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process neuronal stem cell population maintenance ossification osteoblast differentiation ear morphogenesis embryonic organ morphogenesis ear development embryonic morphogenesis inner ear development inner ear morphogenesis regulation of osteoblast differentiation negative regulation of osteoblast differentiation branching morphogenesis of an epithelial tube respiratory tube development tube morphogenesis lung morphogenesis lung development respiratory system development epithelial tube morphogenesis tube development morphogenesis of an epithelium tissue morphogenesis morphogenesis of a branching structure epithelial tube branching involved in lung morphogenesis morphogenesis of a branching epithelium response to retinoic acid response to lipid response to oxygen-containing compound forebrain generation of neurons central nervous system neuron differentiation forebrain neuron differentiation trophectodermal cell differentiation chordate embryonic development in utero embryonic development blastocyst formation embryo development ending in birth or egg hatching blastocyst development neuron fate commitment detection of external stimulus detection of mechanical stimulus involved in sensory perception of sound response to mechanical stimulus response to external stimulus detection of mechanical stimulus involved in sensory perception detection of abiotic stimulus detection of stimulus detection of mechanical stimulus response to abiotic stimulus detection of stimulus involved in sensory perception positive regulation of neuron differentiation retina development in camera-type eye retina morphogenesis in camera-type eye pigment metabolic process pigment biosynthetic process neuromuscular process detection of mechanical stimulus involved in equilibrioception equilibrioception neuromuscular process controlling balance formation of primary germ layer endodermal cell fate specification gastrulation cell fate commitment involved in formation of primary germ layer endoderm development endoderm formation endodermal cell fate commitment endodermal cell differentiation olfactory placode morphogenesis ectodermal placode morphogenesis nose development olfactory placode formation ectodermal placode formation olfactory placode development ectodermal placode development positive regulation of cell communication positive regulation of signal transduction positive regulation of response to stimulus regulation of Notch signaling pathway positive regulation of Notch signaling pathway positive regulation of signaling stem cell differentiation positive regulation of nervous system development positive regulation of cell population proliferation regulation of neuroblast proliferation positive regulation of neurogenesis regulation of neural precursor cell proliferation positive regulation of cell development positive regulation of neural precursor cell proliferation regulation of cell population proliferation positive regulation of multicellular organismal process positive regulation of neuroblast proliferation lung alveolus development	protein-containing complex transcription regulator complex cellular anatomical structure intracellular anatomical structure cytoplasm intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin chromosome membrane-bounded organelle nucleus membrane-enclosed lumen protein-containing complex transcription regulator complex cellular anatomical structure intracellular anatomical structure cytoplasm intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin chromosome membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C	IPR000327	POU-specific domain	Domain
C	IPR013847	POU domain	Domain
C	IPR017970	Homeobox, conserved site	Conserved Site
C	IPR000972	Octamer-binding transcription factor	Family
C	IPR009057	Homedomain-like superfamily	Homologous Superfamily
C	IPR050255	POU domain transcription factor	Family
C	IPR010982	Lambda repressor-like, DNA-binding domain superfamily	Homologous Superfamily
C	IPR001356	Homeodomain	Domain
C	IPR045703	POU domain, class 2, transcription factor 1, C-terminal	Domain
D	IPR036910	High mobility group box domain superfamily	Homologous Superfamily
D	IPR022097	Transcription factor SOX	Family
D	IPR050140	SRY-related HMG-box transcription factor-like	Family
D	IPR009071	High mobility group box domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C	Pharos: P14859	allergic rhinitis Hashimoto thyroiditis Malignant neoplasm of breast primitive neuroectodermal tumor asthma hypothyroidism medulloblastoma systemic sclerosis astrocytic tumor malignant mesothelioma osteosarcoma

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.