4EQ1

Crystal Structure of the ARNT PAS-B homodimer

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)
B	d4eq1b1	Alpha and beta proteins (a+b)	Profilin-like	PYP-like sensor domain (PAS domain)	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d4eq1b2	Artifacts	Tags	Tags	Tags	N-terminal Tags	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d4eq1a1	Alpha and beta proteins (a+b)	Profilin-like	PYP-like sensor domain (PAS domain)	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d4eq1a2	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)
B	SCOP2B Superfamily	PYP-like sensor domain (PAS domain)	8088404	3000471	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	PYP-like sensor domain (PAS domain)	8088404	3000471	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)
B	PAS_11	e4eq1B1	A: a+b three layers	X: Profilin-like	H: sensor domains (From Topology)	T: sensor domains	F: PAS_11	ECOD (1.6)
A	PAS_11	e4eq1A1	A: a+b three layers	X: Profilin-like	H: sensor domains (From Topology)	T: sensor domains	F: PAS_11	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.450.20	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	PAS domain	CATH (4.3.0)
A	3.30.450.20	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	PAS domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF14598	PAS domain (PAS_11)	PAS domain	This family includes the PAS-B domain of NCOA1 (Nuclear receptor coactivator 1), which binds to an LXXLL motif in the C-terminal region of STAT6 (Signal transducer and activator of transcription 6) [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Aryl hydrocarbon receptor nuclear translocator	transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding protein binding binding DNA-binding transcription factor binding DNA binding sequence-specific DNA 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 factor binding RNA polymerase II-specific DNA-binding transcription factor binding protein binding binding DNA-binding transcription factor binding DNA binding sequence-specific DNA 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 protein heterodimerization activity protein dimerization activity transcription regulator activity DNA-binding transcription factor activity DNA-binding transcription factor activity, RNA polymerase II-specific identical protein binding protein homodimerization activity nuclear receptor activity molecular transducer activity ligand-activated transcription factor activity signaling receptor activity signaling receptor binding aryl hydrocarbon receptor binding	developmental process cellular developmental process cell differentiation cellular process pyridine nucleotide catabolic process oxoacid metabolic process carbohydrate catabolic process carbohydrate derivative metabolic process organophosphate catabolic process regulation of generation of precursor metabolites and energy nucleoside phosphate catabolic process organic acid metabolic process regulation of primary metabolic process regulation of ATP metabolic process developmental process cellular developmental process cell differentiation cellular process pyridine nucleotide catabolic process oxoacid metabolic process carbohydrate catabolic process carbohydrate derivative metabolic process organophosphate catabolic process regulation of generation of precursor metabolites and energy nucleoside phosphate catabolic process organic acid metabolic process regulation of primary metabolic process regulation of ATP metabolic process cellular catabolic process regulation of purine nucleotide catabolic process regulation of small molecule metabolic process regulation of phosphate metabolic process regulation of nucleotide metabolic process phosphate-containing compound metabolic process small molecule metabolic process purine ribonucleotide catabolic process nucleoside phosphate metabolic process pyruvate metabolic process cellular metabolic process purine nucleoside diphosphate metabolic process primary metabolic process purine-containing compound catabolic process regulation of purine nucleotide metabolic process nucleobase-containing compound catabolic process positive regulation of ATP metabolic process nucleoside diphosphate metabolic process metabolic process regulation of phosphorus metabolic process positive regulation of carbohydrate metabolic process monocarboxylic acid metabolic process pyridine-containing compound catabolic process ribose phosphate metabolic process ATP metabolic process positive regulation of purine nucleotide catabolic process positive regulation of cellular metabolic process nucleobase-containing small molecule metabolic process purine ribonucleoside triphosphate metabolic process positive regulation of cellular process purine nucleotide catabolic process carbohydrate derivative catabolic process positive regulation of glycolytic process purine-containing compound metabolic process positive regulation of catabolic process ADP metabolic process purine ribonucleoside diphosphate metabolic process purine ribonucleoside diphosphate catabolic process ribonucleotide catabolic process regulation of cellular process positive regulation of phosphate metabolic process nucleobase-containing compound metabolic process positive regulation of metabolic process positive regulation of nucleotide catabolic process glycolytic process pyridine-containing compound metabolic process regulation of nucleobase-containing compound metabolic process phosphorus metabolic process pyridine nucleotide metabolic process nicotinamide nucleotide metabolic process regulation of carbohydrate catabolic process regulation of biological process positive regulation of nucleobase-containing compound metabolic process positive regulation of phosphorus metabolic process regulation of cellular metabolic process nucleotide metabolic process purine nucleoside diphosphate catabolic process nucleoside diphosphate catabolic process regulation of nucleotide catabolic process nucleoside triphosphate metabolic process purine ribonucleotide metabolic process regulation of metabolic process catabolic process positive regulation of nucleotide metabolic process positive regulation of biological process purine nucleotide metabolic process ribonucleotide metabolic process ribonucleoside diphosphate metabolic process ribonucleoside diphosphate catabolic process regulation of carbohydrate metabolic process ribonucleoside triphosphate metabolic process nucleotide catabolic process purine nucleoside triphosphate metabolic process carbohydrate metabolic process biological regulation ADP catabolic process carboxylic acid metabolic process generation of precursor metabolites and energy regulation of catabolic process regulation of glycolytic process positive regulation of purine nucleotide metabolic process organophosphate metabolic process regulation of cellular catabolic process positive regulation of cellular catabolic process positive regulation of small molecule metabolic process regulation of protein sumoylation regulation of protein modification process positive regulation of protein metabolic process peptidyl-lysine modification positive regulation of post-translational protein modification positive regulation of protein modification process peptidyl-amino acid modification positive regulation of macromolecule metabolic process protein metabolic process regulation of protein modification by small protein conjugation or removal protein modification process positive regulation of protein modification by small protein conjugation or removal regulation of post-translational protein modification regulation of protein metabolic process regulation of macromolecule metabolic process protein sumoylation macromolecule modification macromolecule metabolic process positive regulation of protein sumoylation post-translational protein modification protein modification by small protein conjugation protein modification by small protein conjugation or removal multicellular organismal process cellular biosynthetic process positive regulation of macromolecule biosynthetic process positive regulation of biosynthetic process regulation of cytokine production cytokine production regulation of multicellular organismal process regulation of vascular endothelial growth factor production regulation of biosynthetic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression vascular endothelial growth factor production biosynthetic process positive regulation of gene expression positive regulation of multicellular organismal process positive regulation of vascular endothelial growth factor production regulation of macromolecule biosynthetic process positive regulation of cytokine production positive regulation of cellular biosynthetic process cellular response to stimulus positive regulation of cell communication cellular response to growth factor stimulus positive regulation of signal transduction response to stimulus signaling regulation of signal transduction cell surface receptor protein tyrosine kinase signaling pathway cell communication regulation of vascular endothelial growth factor receptor signaling pathway positive regulation of response to stimulus cellular response to endogenous stimulus signal transduction enzyme-linked receptor protein signaling pathway regulation of signaling cell surface receptor signaling pathway response to endogenous stimulus regulation of cellular response to growth factor stimulus vascular endothelial growth factor receptor signaling pathway regulation of response to stimulus positive regulation of vascular endothelial growth factor receptor signaling pathway regulation of cell communication response to growth factor positive regulation of signaling regulation of defense response regulation of response to external stimulus negative regulation of inflammatory response defense response negative regulation of response to stimulus negative regulation of biological process response to external stimulus regulation of inflammatory response response to stress negative regulation of response to external stimulus regulation of response to stress negative regulation of defense response inflammatory response regulation of hormone biosynthetic process regulation of hormone metabolic process regulation of biological quality hormone biosynthetic process positive regulation of hormone metabolic process regulation of hormone levels hormone metabolic process positive regulation of hormone biosynthetic process placenta development chordate embryonic development animal organ development embryo development in utero embryonic development multicellular organism development embryonic placenta development embryo development ending in birth or egg hatching anatomical structure development embryonic organ development response to oxidative stress cellular response to chemical stimulus cellular response to stress response to chemical cellular response to oxidative stress cellular response to chemical stress regulation of developmental process homeostatic process cell development regulation of cell differentiation regulation of cell development positive regulation of developmental process positive regulation of cell differentiation regulation of immune system process myeloid cell homeostasis erythrocyte homeostasis regulation of multicellular organismal development hemopoiesis regulation of myeloid cell differentiation erythrocyte differentiation regulation of erythrocyte differentiation positive regulation of erythrocyte differentiation multicellular organismal-level homeostasis myeloid cell differentiation immune system process positive regulation of myeloid cell differentiation regulation of hemopoiesis homeostasis of number of cells response to decreased oxygen levels response to hypoxia response to oxygen levels response to abiotic stimulus RNA metabolic process RNA biosynthetic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process transcription by RNA polymerase II regulation of RNA biosynthetic process regulation of transcription by RNA polymerase II nucleobase-containing compound biosynthetic process nucleic acid metabolic process regulation of DNA-templated transcription cell population proliferation positive regulation of cell population proliferation endothelial cell proliferation positive regulation of epithelial cell proliferation regulation of endothelial cell proliferation regulation of cell population proliferation positive regulation of endothelial cell proliferation regulation of epithelial cell proliferation epithelial cell proliferation positive regulation of DNA-templated transcription positive regulation of transcription by RNA polymerase II positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process	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 cellular anatomical entity intracellular organelle organelle cytoplasm membrane-enclosed lumen intracellular organelle lumen 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 cellular anatomical entity intracellular organelle organelle cytoplasm membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen intracellular non-membrane-bounded organelle chromatin chromosome non-membrane-bounded organelle aryl hydrocarbon receptor complex receptor complex nuclear aryl hydrocarbon receptor complex intracellular protein-containing complex nuclear body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR050933	Circadian Clock Transcription Factors	Family
A, B	IPR013767	PAS fold	Domain
A, B	IPR001067	Nuclear translocator	Family
A, B	IPR000014	PAS domain	Domain
A, B	IPR011598	Myc-type, basic helix-loop-helix (bHLH) domain	Domain
A, B	IPR035965	PAS domain superfamily	Homologous Superfamily
A, B	IPR001610	PAC motif	Repeat
A, B	IPR036638	Helix-loop-helix DNA-binding domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P27540	melanoma Neoplasms, Experimental cirrhosis of liver endometriosis colorectal cancer cutaneous melanoma malignant mesothelioma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia psoriasis squamous cell carcinoma heart disease large cell medulloblastoma osteosarcoma skin basal cell carcinoma drug-induced liver injury melanoma Neoplasms, Experimental cirrhosis of liver endometriosis colorectal cancer cutaneous melanoma malignant mesothelioma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia psoriasis squamous cell carcinoma heart disease large cell medulloblastoma osteosarcoma skin basal cell carcinoma drug-induced liver injury metabolic syndrome X ovarian cancer atypical teratoid rhabdoid tumor childhood acute lymphoblastic leukemia colorectal carcinoma glioblastoma

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.