4QPR

CRYSTAL STRUCTURE OF GAF DOMAIN of POTASSIUM SENSOR HISTIDINE KINASE KDPD FROM ESCHERICHIA COLI

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	GAF domain-like	8053756	3000080	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	PF13492	e4qprA1	A: a+b three layers	X: Profilin-like	H: sensor domains (From Topology)	T: sensor domains	F: PF13492	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.450.40	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	GAF domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF13492	GAF domain (GAF_3)	GAF domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Sensor protein KdpD	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 transferase activity catalytic activity transferase activity, transferring phosphorus-containing groups identical protein binding protein binding protein homodimerization activity protein dimerization activity catalytic activity, acting on a protein small molecule sensor activity kinase activity protein kinase activity phosphotransferase activity, nitrogenous group as acceptor phosphotransferase activity, alcohol group as acceptor protein histidine kinase activity phosphorelay sensor kinase activity	cellular response to stimulus cellular response to inorganic substance cellular response to metal ion response to stimulus response to potassium ion response to inorganic substance cellular response to chemical stimulus response to metal ion response to chemical cellular process cellular response to potassium ion regulation of biological process regulation of cellular process signaling cellular response to stimulus cellular response to inorganic substance cellular response to metal ion response to stimulus response to potassium ion response to inorganic substance cellular response to chemical stimulus response to metal ion response to chemical cellular process cellular response to potassium ion regulation of biological process regulation of cellular process signaling biological regulation signal transduction cell communication	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cell periphery plasma membrane membrane outer membrane-bounded periplasmic space cell envelope periplasmic space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR004358	Signal transduction histidine kinase-related protein, C-terminal	Domain
A	IPR003852	Signal transduction histidine kinase, osmosensitive K+ channel sensor, N-terminal	Domain
A	IPR003594	Histidine kinase/HSP90-like ATPase	Domain
A	IPR036097	Signal transduction histidine kinase, dimerisation/phosphoacceptor domain superfamily	Homologous Superfamily
A	IPR025201	Sensor protein KdpD, transmembrane domain	Domain
A	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
A	IPR003661	Signal transduction histidine kinase, dimerisation/phosphoacceptor domain	Domain
A	IPR005467	Histidine kinase domain	Domain
A	IPR003018	GAF domain	Domain
A	IPR029016	GAF-like domain superfamily	Homologous Superfamily
A	IPR038318	KdpD, transmembrane domain superfamily	Homologous Superfamily
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

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.