Annotations: 8DIK

Redox properties and PAS domain structure of the E. coli Energy Sensor Aer indicate a multi-state sensing mechanism

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Carb_anhydrase	e8dikB1	A: beta barrels	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Carb_anhydrase	ECOD (v294.2)
A	Carb_anhydrase	e8dikA1	A: beta barrels	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: Carb_anhydrase	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

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

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF08447	PAS fold (PAS_3)	PAS fold	The PAS fold corresponds to the structural domain that has previously been defined as PAS and PAC motifs [4]. The PAS fold appears in archaea, eubacteria and eukarya.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Aerotaxis receptor	identical protein binding protein binding binding molecular transducer activity transmembrane signaling receptor activity signaling receptor activity	chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion positive chemotaxis aerotaxis energy taxis positive energy taxis positive aerotaxis cellular response to stimulus regulation of biological process regulation of cellular process chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion positive chemotaxis aerotaxis energy taxis positive energy taxis positive aerotaxis cellular response to stimulus regulation of biological process regulation of cellular process signaling biological regulation cellular process signal transduction cell communication	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR051310	MCP_chemotaxis	Unknown
A, B	IPR000014	PAS domain	Domain
A, B	IPR004090	Chemotaxis methyl-accepting receptor	Family
A, B	IPR003660	HAMP domain	Domain
A, B	IPR035965	PAS domain superfamily	Homologous Superfamily
A, B	IPR001610	PAC motif	Repeat
A, B	IPR013655	PAS fold 3	Domain
A, B	IPR004089	Methyl-accepting chemotaxis protein (MCP) signalling domain	Domain

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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.