Annotations: 2CUF

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2cufa1	All alpha proteins	DNA/RNA-binding 3-helical bundle	Homeodomain-like	Homeodomain	Homeobox-containing protein 1, HMBOX1 (Flj21616)	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d2cufa3	Artifacts	Tags	Tags	Tags	C-terminal Tags	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d2cufa2	Artifacts	Tags	Tags	Tags	N-terminal Tags	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	SCOP2 Family	Homeodomain	8002356	4000291	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Homeodomain-like	8057594	3000001	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)
A	Homeobox	e2cufA1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: Homeobox	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	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	PF00046	Homeodomain (Homeodomain)	Homeodomain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	FLJ21616 protein	sequence-specific DNA binding DNA binding binding organic cyclic compound binding nucleic acid binding telomeric DNA binding double-stranded telomeric DNA binding double-stranded DNA binding protein-containing complex binding sequence-specific double-stranded DNA binding identical protein binding protein binding	regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process negative regulation of metabolic process primary metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process cellular biosynthetic process RNA metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process negative regulation of cellular process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process negative regulation of biosynthetic process cellular process regulation of catalytic activity regulation of transferase activity regulation of DNA biosynthetic process positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of macromolecule metabolic process positive regulation of nucleobase-containing compound metabolic process DNA metabolic process regulation of molecular function positive regulation of DNA metabolic process DNA biosynthetic process regulation of DNA metabolic process regulation of telomerase activity positive regulation of biological process positive regulation of cellular metabolic process positive regulation of molecular function positive regulation of biosynthetic process positive regulation of cellular process positive regulation of telomerase activity positive regulation of transferase activity positive regulation of catalytic activity positive regulation of DNA biosynthetic process positive regulation of cellular biosynthetic process positive regulation of organelle organization telomere organization RNA-templated DNA biosynthetic process telomere maintenance via telomere lengthening positive regulation of telomere maintenance via telomere lengthening positive regulation of telomere maintenance regulation of chromosome organization regulation of telomere maintenance via telomere lengthening regulation of organelle organization positive regulation of chromosome organization telomere maintenance positive regulation of telomere maintenance via telomerase regulation of telomere maintenance regulation of cellular component organization positive regulation of cellular component organization cellular component organization cellular component organization or biogenesis telomere maintenance via telomerase chromosome organization regulation of telomere maintenance via telomerase organelle organization positive regulation of RNA metabolic process positive regulation of DNA-templated transcription positive regulation of RNA biosynthetic process transcription by RNA polymerase II regulation of transcription by RNA polymerase II negative regulation of transcription by RNA polymerase II positive regulation of chromatin binding regulation of binding regulation of chromatin binding positive regulation of binding	intracellular organelle centrosome microtubule organizing center intracellular anatomical structure cytoskeleton organelle intracellular non-membrane-bounded organelle cellular anatomical entity microtubule cytoskeleton non-membrane-bounded organelle cytoplasm cytosol membrane-bounded organelle nucleus intracellular organelle centrosome microtubule organizing center intracellular anatomical structure cytoskeleton organelle intracellular non-membrane-bounded organelle cellular anatomical entity microtubule cytoskeleton non-membrane-bounded organelle cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen protein-containing complex protein-DNA complex chromatin chromosome Cajal body nuclear body chromosome, telomeric region chromosomal region PML body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001356	Homeobox domain	Domain
A	IPR001387	Cro/C1-type helix-turn-helix domain	Domain
A	IPR044869	HNF-1, POU-specific (POUs) atypical domain	Domain
A	IPR009057	Homeobox-like domain superfamily	Homologous Superfamily
A	IPR040363	Homeobox-containing protein 1	Family
A	IPR044866	HNF-1, dimerization domain	Domain
A	IPR010982	Lambda repressor-like, DNA-binding domain superfamily	Homologous Superfamily
A	IPR006899	Hepatocyte nuclear factor 1, N-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q6NT76	Alzheimer disease lung adenocarcinoma oligodendroglioma breast carcinoma malignant mesothelioma ovarian cancer ductal breast carcinoma in situ malignant pancreatic neoplasm pancreatic ductal adenocarcinoma

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.