Annotations: 4R39

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D		e4r39D1	A: alpha arrays	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v295.2)
C	HetR_C	e4r39C1	A: alpha arrays	X: Membrane attack complex/perforin (MACPF) and cholesterol-dependent cytolysin (CDC) domains	H: Dimerization domain of heterocyst differentiation protein HetR	T: Dimerization domain of heterocyst differentiation protein HetR	F: HetR_C	ECOD (v295.2)
B		e4r39B1	A: alpha arrays	X: CBS-domain	H: Porins	T: Invertebrate chitin-binding proteins	F:	ECOD (v295.2)
A	HATPase_c	e4r39A1	A: alpha arrays	X: OB-fold	H: Nucleic acid-binding protein	T: Nucleic acid-binding protein	F: HATPase_c	ECOD (v295.2)
A	SSB	e4r39A2	A: alpha arrays	X: OB-fold	H: Nucleic acid-binding protein	T: Nucleic acid-binding protein	F: SSB	ECOD (v295.2)

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF02518	Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase (HATPase_c)	Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase	This family represents the structurally related ATPase domains of histidine kinase, DNA gyrase B and HSP90.	Domain
A, B, C, D	PF07568	Histidine kinase (HisKA_2)	Histidine kinase	This is the dimerisation and phosphoacceptor domain of a sub-family of histidine kinases [1]. It shares sequence similarity with Pfam:PF00512 and Pfam:PF07536 [2]. It is usually found adjacent to a C-terminal ATPase domain (Pfam:PF02518). This domain ...	This is the dimerisation and phosphoacceptor domain of a sub-family of histidine kinases [1]. It shares sequence similarity with Pfam:PF00512 and Pfam:PF07536 [2]. It is usually found adjacent to a C-terminal ATPase domain (Pfam:PF02518). This domain is found in a wide range of Bacteria and also several Archaea.	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Blue-light-activated histidine kinase 2	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 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 molecular transducer activity photoreceptor activity signaling receptor activity	-	-

Chains	Accession	Name	Type
A, B, C, D	IPR035965	PAS domain superfamily	Homologous Superfamily
A, B, C, D	IPR003594	Histidine kinase/HSP90-like ATPase domain	Domain
A, B, C, D	IPR000700	PAS-associated, C-terminal	Domain
A, B, C, D	IPR005467	Histidine kinase domain	Domain
A, B, C, D	IPR000014	PAS domain	Domain
A, B, C, D	IPR004358	Signal transduction histidine kinase-related protein, C-terminal	Domain
A, B, C, D	IPR011495	Signal transduction histidine kinase, subgroup 2, dimerisation and phosphoacceptor domain	Domain
A, B, C, D	IPR036890	Histidine kinase/HSP90-like ATPase 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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

4R39 | pdb_00004r39