4QPJ

2.7 Angstrom Structure of a Phosphotransferase in Complex with a Receiver Domain

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

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C	d4qpjc1	Alpha and beta proteins (a/b)	Flavodoxin-like	CheY-like	automated matches	automated matches	(Brucella abortus 2308 ) [TaxId: 359391 ],	SCOPe (2.08)
C	d4qpjc2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Brucella abortus 2308 ) [TaxId: 359391 ],	SCOPe (2.08)
D	d4qpjd1	Alpha and beta proteins (a/b)	Flavodoxin-like	CheY-like	automated matches	automated matches	(Brucella abortus 2308 ) [TaxId: 359391 ],	SCOPe (2.08)
D	d4qpjd2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Brucella abortus 2308 ) [TaxId: 359391 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2 Family	CheY-related	8072857	4003632	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	CheY-like	8072858	3001156	SCOP2 (2022-06-29)
D	SCOP2B Superfamily	CheY-like	8072858	3001156	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	COG5385	e4qpjA2	A: alpha duplicates or obligate multimers	X: ROP-like	H: Homodimeric domain of signal transducing histidine kinase (From Topology)	T: Homodimeric domain of signal transducing histidine kinase	F: COG5385	ECOD (1.6)
A	HPTransfase	e4qpjA1	A: a+b two layers	X: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase-like	H: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase (From Topology)	T: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	F: HPTransfase	ECOD (1.6)
B	COG5385	e4qpjB2	A: alpha duplicates or obligate multimers	X: ROP-like	H: Homodimeric domain of signal transducing histidine kinase (From Topology)	T: Homodimeric domain of signal transducing histidine kinase	F: COG5385	ECOD (1.6)
B	HPTransfase	e4qpjB1	A: a+b two layers	X: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase-like	H: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase (From Topology)	T: ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase	F: HPTransfase	ECOD (1.6)
C	Response_reg	e4qpjC1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: CheY-like	F: Response_reg	ECOD (1.6)
D	Response_reg	e4qpjD1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: CheY-like	F: Response_reg	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.287.130	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Signal transduction histidine kinase, dimerisation/phosphotransfer (DHp) domain	CATH (4.3.0)
A	3.30.565.10	Alpha Beta	2-Layer Sandwich	Heat Shock Protein 90	Histidine kinase-like ATPase, C-terminal domain	CATH (4.3.0)
B	1.10.287.130	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Signal transduction histidine kinase, dimerisation/phosphotransfer (DHp) domain	CATH (4.3.0)
B	3.30.565.10	Alpha Beta	2-Layer Sandwich	Heat Shock Protein 90	Histidine kinase-like ATPase, C-terminal domain	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	PF10090	Histidine phosphotransferase C-terminal domain (HPTransfase)	Histidine phosphotransferase C-terminal domain	HPTransfase is a family of essential histidine phosphotransferases. It controls the activity of the master bacterial cell-cycle regulator CtrA through phosphorylation. It behaves as a homodimer by adopting the domain architecture of the intracellula ...	HPTransfase is a family of essential histidine phosphotransferases. It controls the activity of the master bacterial cell-cycle regulator CtrA through phosphorylation. It behaves as a homodimer by adopting the domain architecture of the intracellular part of class I histidine kinases. Each subunit consists of two distinct domains: an N-terminal helical hairpin domain and a C-terminal [alpha]/[beta] domain. The two N-terminal domains are adjacent within the dimer, forming a four-helix bundle. The C-terminal domain adopts an atypical Bergerat ATP-binding fold [1].	Domain
C, D	PF00072	Response regulator receiver domain (Response_reg)	Response regulator receiver domain	This domain receives the signal from the sensor partner in bacterial two-component systems. It is usually found N-terminal to a DNA binding effector domain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Phosphotransferase	identical protein binding protein binding binding protein homodimerization activity protein dimerization activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups	macromolecule modification peptidyl-amino acid modification metabolic process cellular process primary metabolic process peptidyl-aspartic acid modification protein metabolic process macromolecule metabolic process protein modification process cellular response to stimulus regulation of biological process phosphorelay signal transduction system regulation of cellular process response to stimulus macromolecule modification peptidyl-amino acid modification metabolic process cellular process primary metabolic process peptidyl-aspartic acid modification protein metabolic process macromolecule metabolic process protein modification 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 signal transduction	cellular anatomical structure intracellular anatomical structure cytoplasm
C, D	Cell cycle response regulator CtrA	DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding transcription cis-regulatory region binding binding double-stranded DNA binding nucleic acid binding transcription regulatory region nucleic acid binding molecular transducer activity phosphorelay response 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 RNA metabolic process regulation of primary metabolic process nucleobase-containing compound 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 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 regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol protein-containing complex protein-DNA complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
A, B	IPR018762	Histidine phosphotransferase ChpT, C-terminal	Domain
C, D	IPR039420	Transcriptional regulatory protein WalR-like	Family
C, D	IPR001867	OmpR/PhoB-type DNA-binding domain	Domain
C, D	IPR011006	CheY-like superfamily	Homologous Superfamily
C, D	IPR001789	Signal transduction response regulator, receiver domain	Domain
C, D	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily

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.