Annotations: 5WC9

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth B]	Homeobox	e5wc9B1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: Homeobox	ECOD (1.6)
A [auth B]	Pou	e5wc9B2	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: Pou	ECOD (1.6)
B [auth A]	Homeobox	e5wc9A2	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: Homeobox	ECOD (1.6)
B [auth A]	Pou	e5wc9A1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: Pou	ECOD (1.6)
E	Homeobox	e5wc9E1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: Homeobox	ECOD (1.6)
E	Pou	e5wc9E2	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: Pou	ECOD (1.6)
F	Homeobox	e5wc9F1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: Homeobox	ECOD (1.6)
F	Pou	e5wc9F2	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: Pou	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth B]	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
A [auth B]	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)
B [auth A]	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
B [auth A]	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)
E	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
E	1.10.10.60	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Homeodomain-like	CATH (4.3.0)
F	1.10.260.40	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	lambda repressor-like DNA-binding domains	CATH (4.3.0)
F	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 [auth B], B [auth A], E, F	PF00157	Pou domain - N-terminal to homeobox domain (Pou)	Pou domain - N-terminal to homeobox domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B], B [auth A], E, F	Pituitary-specific positive transcription factor 1	DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity RNA binding binding organic cyclic compound binding lncRNA binding nucleic acid binding transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding protein binding DNA-binding transcription factor binding DNA binding sequence-specific DNA binding DNA-binding transcription factor activity, RNA polymerase II-specific transcription regulator activity DNA-binding transcription factor activity RNA binding binding organic cyclic compound binding lncRNA binding nucleic acid binding transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding protein binding DNA-binding transcription factor binding DNA binding sequence-specific DNA binding 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 DNA-binding transcription activator activity, RNA polymerase II-specific DNA-binding transcription activator activity	developmental process multicellular organismal process head development forebrain development endocrine system development pituitary gland development animal organ development gland development brain development diencephalon development nervous system development multicellular organism development central nervous system development anatomical structure development developmental process multicellular organismal process head development forebrain development endocrine system development pituitary gland development animal organ development gland development brain development diencephalon development nervous system development multicellular organism development central nervous system development anatomical structure development adenohypophysis development system development regulation of cellular process cellular biosynthetic process 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 organic substance metabolic process organic substance biosynthetic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process cellular metabolic process biological regulation primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process cellular process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process negative regulation of cell population proliferation cell population proliferation regulation of cell population proliferation negative regulation of cellular process negative regulation of biological process transcription by RNA polymerase II regulation of transcription by RNA polymerase II negative regulation of cellular metabolic process negative regulation of RNA biosynthetic process negative regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription negative regulation of transcription by RNA polymerase II negative regulation of metabolic process negative regulation of cellular biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of RNA metabolic process negative regulation of macromolecule metabolic process negative regulation of 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 positive regulation of transcription by RNA polymerase II positive regulation of RNA metabolic process positive regulation of DNA-templated transcription positive regulation of biological process positive regulation of cellular metabolic process positive regulation of biosynthetic process positive regulation of cellular process positive regulation of RNA biosynthetic process positive regulation of cellular biosynthetic process	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen intracellular anatomical structure cytoplasm cellular anatomical entity cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen protein-containing complex protein-DNA complex intracellular non-membrane-bounded organelle chromatin chromosome non-membrane-bounded organelle
C, G	DNA (5'-D(CPCPAPTPTPCPAPTPTPCPAPTPTPCPAPTPTPCPGPGP*A)-3')	-	-	-
D, H	DNA (5'-D(CPCPGPAPAPTPGPAPAPTPGPAPAPTPGPAPAPTPGPGP*T)-3')	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth A], E, F	IPR001356	Homeobox domain	Domain
A [auth B], B [auth A], E, F	IPR000327	POU-specific domain	Domain
A [auth B], B [auth A], E, F	IPR013847	POU domain	Domain
A [auth B], B [auth A], E, F	IPR009057	Homeobox-like domain superfamily	Homologous Superfamily
A [auth B], B [auth A], E, F	IPR017970	Homeobox, conserved site	Conserved Site
A [auth B], B [auth A], E, F	IPR010982	Lambda repressor-like, DNA-binding domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth B], B [auth A], E, F	Pharos: P28069	pituitary hormone deficiency, combined, 1 isolated growth hormone deficiency type II hypopituitarism panhypopituitarism congenital hypothyroidism intellectual disability pituitary cancer prostate carcinoma isolated congenital growth hormone deficiency osteogenesis imperfecta pituitary dwarfism septooptic dysplasia hypothyroidism due to deficient transcription factors involved in pituitary development or function isolated growth hormone deficiency

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.