Annotations: 1HF0

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1hf0a1	All alpha proteins	DNA/RNA-binding 3-helical bundle	Homeodomain-like	Homeodomain	Oct-1 POU Homeodomain	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1hf0a2	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)
B	d1hf0b1	All alpha proteins	DNA/RNA-binding 3-helical bundle	Homeodomain-like	Homeodomain	Oct-1 POU Homeodomain	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1hf0b2	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)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8017633	3000119	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Homeodomain-like	8017635	3000001	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	lambda C1 repressor DNA-binding domain-like	8017633	3000119	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Homeodomain-like	8017635	3000001	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	Fe_dep_repress	e1hf0A1	A: alpha bundles	X: EGF-like	H: YozE-like	T: Ribbon-helix-helix	F: Fe_dep_repress	ECOD (develop294)
A	Phage_CII	e1hf0A2	A: alpha bundles	X: EGF-like	H: YozE-like	T: Ribbon-helix-helix	F: Phage_CII	ECOD (develop294)
B	Fe_dep_repress	e1hf0B1	A: alpha bundles	X: EGF-like	H: YozE-like	T: Ribbon-helix-helix	F: Fe_dep_repress	ECOD (develop294)
B	Phage_CII	e1hf0B2	A: alpha bundles	X: EGF-like	H: YozE-like	T: Ribbon-helix-helix	F: Phage_CII	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
A	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)
B	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
B	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00046	Homeodomain (Homeodomain)	Homeodomain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	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 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 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 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 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
C [auth M]	DNA 5'-D(CPAPCPAPTPTPTPGPAPAPAPGPGP CPAPAPAPTPGPGPAPG)-3'	-	-	-
D [auth N]	DNA 5'-D(CPTPCPCPAPTPTPTPGPCPCPTPTP TPCPAPAPAPTPGPTPG)-3'	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR000327	POU-specific domain	Domain
A, B	IPR013847	POU domain	Domain
A, B	IPR017970	Homeobox, conserved site	Conserved Site
A, B	IPR000972	Octamer-binding transcription factor	Family
A, B	IPR009057	Homedomain-like superfamily	Homologous Superfamily
A, B	IPR050255	POU domain transcription factor	Family
A, B	IPR010982	Lambda repressor-like, DNA-binding domain superfamily	Homologous Superfamily
A, B	IPR001356	Homeodomain	Domain
A, B	IPR045703	POU domain, class 2, transcription factor 1, C-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.