Annotations: 8C3I

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth B]	SCOP2B Superfamily	PYP-like sensor domain (PAS domain)	8035040	3000471	SCOP2B (2022-06-29)
A [auth B]	SCOP2B Superfamily	GAF domain-like	8035039	3000080	SCOP2B (2022-06-29)
B [auth A]	SCOP2B Superfamily	GAF domain-like	8035039	3000080	SCOP2B (2022-06-29)
B [auth A]	SCOP2B Superfamily	PYP-like sensor domain (PAS domain)	8035040	3000471	SCOP2B (2022-06-29)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B], B [auth A]	Bacteriophytochrome	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding enzyme regulator activity kinase activator activity enzyme activator activity molecular function activator activity molecular function regulator activity protein kinase activator activity protein kinase regulator activity kinase regulator activity catalytic activity, acting on a protein small molecule sensor activity kinase activity protein kinase activity transferase activity phosphotransferase activity, nitrogenous group as acceptor phosphotransferase activity, alcohol group as acceptor protein histidine kinase activity transferase activity, transferring phosphorus-containing groups phosphorelay sensor kinase activity catalytic activity molecular transducer activity photoreceptor activity signaling receptor activity phosphorelay response regulator activity identical protein binding protein binding	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 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 cellular response to stimulus osmosensory signaling via phosphorelay pathway response to stimulus signaling cellular response to chemical stress intracellular signal transduction cellular response to environmental stimulus cell communication osmosensory signaling pathway cellular response to stress response to stress signal transduction response to osmotic stress phosphorelay signal transduction system cellular response to osmotic stress cellular response to chemical stimulus response to chemical response to abiotic stimulus cellular response to abiotic stimulus detection of light stimulus response to light stimulus detection of external stimulus detection of stimulus detection of visible light response to external stimulus response to radiation detection of abiotic stimulus	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth A]	IPR013515	Phytochrome, central region	Domain
A [auth B], B [auth A]	IPR004358	Signal transduction histidine kinase-related protein, C-terminal	Domain
A [auth B], B [auth A]	IPR003594	Histidine kinase/HSP90-like ATPase	Domain
A [auth B], B [auth A]	IPR036097	Signal transduction histidine kinase, dimerisation/phosphoacceptor domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR043150	Phytochrome, PHY domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR013654	PAS fold-2	Domain
A [auth B], B [auth A]	IPR035965	PAS domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR005467	Histidine kinase domain	Domain
A [auth B], B [auth A]	IPR003018	GAF domain	Domain
A [auth B], B [auth A]	IPR029016	GAF-like domain superfamily	Homologous Superfamily
A [auth B], B [auth A]	IPR016132	Phytochrome chromophore attachment domain	Domain

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 R01GM133198.