3KYI | pdb_00003kyi

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d3kyib1	Alpha and beta proteins (a/b)	Flavodoxin-like	CheY-like	automated matches	automated matches	Rhodopseudomonas sphaeroides (Cereibacter sphaeroides ) [TaxId: 1063 ],	SCOPe (2.08)
B	d3kyib2	Artifacts	Tags	Tags	Tags	N-terminal Tags	Rhodopseudomonas sphaeroides (Cereibacter sphaeroides ) [TaxId: 1063 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2 Family	CheY-related	8072851	4003632	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	CheY-like	8072852	3001156	SCOP2 (2022-06-29)
A	SCOP2 Family	Chemotaxis protein CheA P1 domain	8073993	4002977	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Histidine-containing phosphotransfer domain, HPT domain	8073994	3001634	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	mRNA_cap_C	e3kyiB1	A: a/b three-layered sandwiches	X: OB-fold	H: Nucleic acid-binding protein	T: Nucleic acid-binding protein	F: mRNA_cap_C	ECOD (v294.1)
A	Pyr_redox	e3kyiA1	A: a/b three-layered sandwiches	X: Immunoglobulin-like beta-sandwich	H: HTH	T: winged helix domain	F: Pyr_redox	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)
A	1.20.120.160	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	HPT domain	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	CheY6 protein	-	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	-
A	Putative histidine protein kinase	catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, nitrogenous group as acceptor phosphotransferase activity, alcohol group as acceptor protein histidine kinase activity transferase activity, transferring phosphorus-containing groups	chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion cellular response to stimulus regulation of biological process phosphorelay signal transduction system regulation of cellular process signaling biological regulation intracellular signal transduction cell communication chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion cellular response to stimulus regulation of biological process phosphorelay signal transduction system regulation of cellular process signaling biological regulation intracellular signal transduction cell communication cellular process signal transduction	-

Chains	Accession	Name	Type
B	IPR011006	CheY-like superfamily	Homologous Superfamily
B	IPR001789	Signal transduction response regulator, receiver domain	Domain
A	IPR002545	CheW-like domain	Domain
A	IPR036641	HPT domain superfamily	Homologous Superfamily
A	IPR008207	Signal transduction histidine kinase, phosphotransfer (Hpt) domain	Domain
A	IPR036061	CheW-like domain superfamily	Homologous Superfamily
A	IPR051315	Bacterial Chemotaxis Sensor Histidine Kinase CheA	Family
A	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily

Modified Residue(s)
Chain	Residue(s)	Description
A	NEP	Parent Component: HIS RESID: AA0035 PSI-MOD : 1'-phospho-L-histidine MOD:00044

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

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