Annotations: 4GKG

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Hemagglutinin	e4gkgA01	A: alpha arrays	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: Hemagglutinin	ECOD (v295.2)
B [auth F]	Med6	e4gkgF1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Med6	ECOD (v295.2)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.5.170	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B [auth F]	C4-dicarboxylate transport sensor protein dctB	molecular sensor activity catalytic activity, acting on a protein 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 catalytic activity	-	cell periphery cellular anatomical structure plasma membrane membrane

Chains	Accession	Name	Type
A, B [auth F]	IPR003594	Histidine kinase/HSP90-like ATPase domain	Domain
A, B [auth F]	IPR005467	Histidine kinase domain	Domain
A, B [auth F]	IPR004358	Signal transduction histidine kinase-related protein, C-terminal	Domain
A, B [auth F]	IPR036097	Signal transduction histidine kinase, dimerisation/phosphoacceptor domain superfamily	Homologous Superfamily
A, B [auth F]	IPR029151	Periplasmic sensor-like domain superfamily	Homologous Superfamily
A, B [auth F]	IPR036890	Histidine kinase/HSP90-like ATPase superfamily	Homologous Superfamily
A, B [auth F]	IPR003661	Signal transduction histidine kinase, dimerisation/phosphoacceptor domain	Domain
A, B [auth F]	IPR017055	Signal transduction histidine kinase, DctB (C4-dicarboxylate transport system regulator)	Family

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.

4GKG | pdb_00004gkg