Annotations: 3O1J

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Chemoreceptors ligand-binding domain	8018638	3001511	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Chemoreceptors ligand-binding domain	8018639	3001511	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Chemoreceptors ligand-binding domain	8018638	3001511	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Chemoreceptors ligand-binding domain	8018639	3001511	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Chemoreceptors ligand-binding domain	8018638	3001511	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Chemoreceptors ligand-binding domain	8018638	3001511	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	PF21689	e3o1jB1	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: PF21689	ECOD (1.6)
B	PF22519	e3o1jB3	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: PF22519	ECOD (1.6)
A	PF21689	e3o1jA2	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: PF21689	ECOD (1.6)
A	PF22519	e3o1jA3	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: PF22519	ECOD (1.6)
C	PF00532	e3o1jC1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Periplasmic binding protein-like I	F: PF00532	ECOD (1.6)
D	PF00532	e3o1jD1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Periplasmic binding protein-like I	F: PF00532	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.20.58.920	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)
A	1.20.58.920	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)
C	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)
D	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF21689	Sensor protein TorS, sensor domain (TorS_sensor_domain)	Sensor protein TorS, sensor domain	This domain is found in 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) reduct ...	This domain is found in 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. This domain folds into a four-helical bundle [1-3].	Domain
C, D	PF00532	Periplasmic binding proteins and sugar binding domain of LacI family (Peripla_BP_1)	Periplasmic binding proteins and sugar binding domain of LacI family	This family includes the periplasmic binding proteins, and the LacI family transcriptional regulators. The periplasmic binding proteins are the primary receptors for chemotaxis and transport of many sugar based solutes. The LacI family of proteins ...	This family includes the periplasmic binding proteins, and the LacI family transcriptional regulators. The periplasmic binding proteins are the primary receptors for chemotaxis and transport of many sugar based solutes. The LacI family of proteins consist of transcriptional regulators related to the lac repressor. In this case, generally the sugar binding domain binds a sugar which changes the DNA binding activity of the repressor domain (Pfam:PF00356).	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Sensor protein TorS	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 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 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 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 identical protein binding protein binding binding	-	cell periphery plasma membrane membrane cellular anatomical entity
C, D	Periplasmic protein TorT	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR038188	TorS, sensor domain superfamily	Homologous Superfamily
A, B	IPR037952	Sensor histidine kinase TorS, sensor domain	Domain
A, B	IPR011006	CheY-like superfamily	Homologous Superfamily
A, B	IPR004358	Signal transduction histidine kinase-related protein, C-terminal	Domain
A, B	IPR001789	Signal transduction response regulator, receiver domain	Domain
A, B	IPR003594	Histidine kinase/HSP90-like ATPase	Domain
A, B	IPR036097	Signal transduction histidine kinase, dimerisation/phosphoacceptor domain superfamily	Homologous Superfamily
A, B	IPR003660	HAMP domain	Domain
A, B	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
A, B	IPR003661	Signal transduction histidine kinase, dimerisation/phosphoacceptor domain	Domain
A, B	IPR014302	Signal transduction histidine kinase, TMAO sensor TorS	Family
A, B	IPR005467	Histidine kinase domain	Domain
A, B	IPR036641	HPT domain superfamily	Homologous Superfamily
A, B	IPR008207	Signal transduction histidine kinase, phosphotransfer (Hpt) domain	Domain
C, D	IPR014301	TMAO reductase system, periplasmic protein TorT	Family
C, D	IPR028082	Periplasmic binding protein-like I	Homologous Superfamily
C, D	IPR001761	Periplasmic binding protein/LacI sugar binding 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.