Annotations: 2YKF

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PAS_4_1	e2ykfA1	A: a+b three layers	X: Profilin-like	H: sensor domains (From Topology)	T: sensor domains	F: PAS_4_1	ECOD (1.6)
A	H_kinase_N	e2ykfA2	A: a+b three layers	X: Profilin-like	H: sensor domains (From Topology)	T: sensor domains	F: H_kinase_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.450.280	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	GAF domain	CATH (4.3.0)
A	3.30.450.20	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	PAS domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF12282	Histidine kinase PdtaS, GAF domain (GAF_PdtaS)	Histidine kinase PdtaS, GAF domain	This entry represents the GAF domain of the sensor region in the cytosolic histidine kinase (HK), PdtaS, from Mycobacterium tuberculosis. The N-terminal region of this protein is comprised of closely linked GAF and PAS domains, both are ubiquitous an ...	This entry represents the GAF domain of the sensor region in the cytosolic histidine kinase (HK), PdtaS, from Mycobacterium tuberculosis. The N-terminal region of this protein is comprised of closely linked GAF and PAS domains, both are ubiquitous and form dimeric interfaces. GAF domains are known to bind heme (as can PAS domains), to be involved in redox responses and even to function as catalytic domains [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROBABLE SENSOR HISTIDINE KINASE PDTAS	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 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	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	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR035965	PAS domain superfamily	Homologous Superfamily
A	IPR005467	Histidine kinase domain	Domain
A	IPR022066	Histidine kinase PdtaS, GAF domain	Domain
A	IPR038424	Histidine kinase PdtaS, GAF domain superfamily	Homologous Superfamily
A	IPR011495	Signal transduction histidine kinase, subgroup 2, dimerisation and phosphoacceptor domain	Domain
A	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.