3I9W | pdb_00003i9w

Crystal structure of the E. coli histidine kinase sensor TorS sensor domain

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	SCOP2 Family	Histidine kinase TorS, sensory domain - like	8018630	4004019	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Chemoreceptors, ligand-binding domain	8018632	3001511	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Chemoreceptors, ligand-binding domain	8018631	3001511	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	TMAO_torS	e3i9wA3	A: alpha bundles	X: Four-helical up-and-down bundle	H: Histidine kinase associated sensor domains (From Topology)	T: Histidine kinase associated sensor domains	F: TMAO_torS	ECOD (1.6)
A	TorS_sensor_domain	e3i9wA2	A: alpha bundles	X: Four-helical up-and-down bundle	H: Histidine kinase associated sensor domains (From Topology)	T: Histidine kinase associated sensor domains	F: TorS_sensor_domain	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.58.920	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF21689	Sensor protein TorS, sensor domain (TorS_sensor_domain)	Sensor protein TorS, sensor domain	This entry represents the periplasmic sensor domain of Sensor protein TorS from Escherichia coli and similar proteins predominantly found in proteobacteria. TorS is a sensor histidine kinase that forms a complex with TorT, and TorR, to form the trime ...	This entry represents the periplasmic sensor domain of Sensor protein TorS from Escherichia coli and similar proteins predominantly found in proteobacteria. TorS is a sensor histidine kinase that forms a complex with TorT, and TorR, to form the trimethylamine-N-oxide (TMAO) reductase (Tor) pathway, which plays a role in the regulation of this terminal electron receptor in anaerobic respiration [1,2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Sensor protein torS	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding identical protein binding protein binding protein homodimerization activity protein dimerization activity phosphoric ester hydrolase activity phosphoprotein phosphatase activity catalytic activity, acting on a protein hydrolase activity, acting on ester bonds phosphatase activity hydrolase activity catalytic activity molecular 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 molecular function regulator activity	cellular response to stimulus regulation of biological process phosphorelay signal transduction system regulation of cellular process response to stimulus signaling biological regulation intracellular signal transduction cell communication cellular process signal transduction cellular respiration energy derivation by oxidation of organic compounds metabolic process cellular response to stimulus regulation of biological process phosphorelay signal transduction system regulation of cellular process response to stimulus signaling biological regulation intracellular signal transduction cell communication cellular process signal transduction cellular respiration energy derivation by oxidation of organic compounds metabolic process generation of precursor metabolites and energy anaerobic respiration	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR038188	TorS, sensor domain superfamily	Homologous Superfamily
A	IPR037952	Sensor histidine kinase TorS, sensor domain	Domain
A	IPR011006	CheY-like superfamily	Homologous Superfamily
A	IPR004358	Signal transduction histidine kinase-related protein, C-terminal	Domain
A	IPR001789	Signal transduction response regulator, receiver domain	Domain
A	IPR036097	Signal transduction histidine kinase, dimerisation/phosphoacceptor domain superfamily	Homologous Superfamily
A	IPR003660	HAMP domain	Domain
A	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
A	IPR003661	Signal transduction histidine kinase, dimerisation/phosphoacceptor domain	Domain
A	IPR014302	Signal transduction histidine kinase, TMAO sensor TorS	Family
A	IPR005467	Histidine kinase domain	Domain
A	IPR036641	HPT domain superfamily	Homologous Superfamily
A	IPR008207	Signal transduction histidine kinase, phosphotransfer (Hpt) 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 R01GM157729.