2ASR

THE THREE-DIMENSIONAL STRUCTURE OF THE ASPARTATE RECEPTOR FROM ESCHERICHIA COLI

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2asra_	All alpha proteins	Four-helical up-and-down bundle	Aspartate receptor, ligand-binding domain	Aspartate receptor, ligand-binding domain	Aspartate receptor, ligand-binding domain	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Cluster I chemoreceptors ligand-binding domain	8018619	4000808	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Chemoreceptors ligand-binding domain	8018620	3001511	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF02203	e2asrA1	A: alpha bundles	X: Four-helical up-and-down bundle	H: Histidine kinase associated sensor domains (From Topology)	T: Histidine kinase associated sensor domains	F: PF02203	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.120.30	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Aspartate receptor, ligand-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02203	Tar ligand binding domain homologue (TarH)	Tar ligand binding domain homologue	This entry represents the ligand-binding domain found in a number of methyl-accepting chemotaxis receptors, such as E.coli Tar (taxis to aspartate and repellents), which is a receptor for the attractant L-aspartate [1,2] and also recognises proteogen ...	This entry represents the ligand-binding domain found in a number of methyl-accepting chemotaxis receptors, such as E.coli Tar (taxis to aspartate and repellents), which is a receptor for the attractant L-aspartate [1,2] and also recognises proteogenic amino acids, phthalic acid, Malic acid, 3,4-dihydroxymandelic acid, citrate, benzoate and derivatives, protocatechuate, vanillate, quinate, shikimate and dehydroshikimate (Matilla et al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043).	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	ASPARTATE RECEPTOR	identical protein binding protein binding binding protein homodimerization activity protein dimerization activity protein histidine kinase binding kinase binding enzyme binding protein kinase binding molecular transducer activity transmembrane signaling receptor activity signaling receptor activity	chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion regulation of protein modification process positive regulation of protein metabolic process positive regulation of biological process positive regulation of post-translational protein modification regulation of primary metabolic process positive regulation of metabolic process positive regulation of protein modification process organic substance metabolic process chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion regulation of protein modification process positive regulation of protein metabolic process positive regulation of biological process positive regulation of post-translational protein modification regulation of primary metabolic process positive regulation of metabolic process positive regulation of protein modification process organic substance metabolic process positive regulation of macromolecule metabolic process protein metabolic process protein modification process regulation of biological process organonitrogen compound metabolic process regulation of post-translational protein modification regulation of protein metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process macromolecule modification metabolic process macromolecule metabolic process post-translational protein modification regulation of metabolic process regulation of response to external stimulus regulation of chemotaxis regulation of response to stimulus regulation of locomotion cellular response to acid chemical cellular response to stimulus cellular response to amino acid stimulus response to acid chemical response to organic substance cellular response to chemical stimulus cellular process response to amino acid regulation of signaling regulation of cellular process protein-containing complex organization signaling regulation of signal transduction cell communication cellular component organization cellular component biogenesis signal complex assembly cellular component assembly protein-containing complex assembly regulation of cell communication cellular component organization or biogenesis signal transduction protein complex oligomerization protein homooligomerization detection of stimulus detection of chemical stimulus	cell tip cell pole cellular anatomical entity protein-containing complex methyl accepting chemotaxis protein complex cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR003122	Chemotaxis methyl-accepting receptor Tar-related, ligand-binding	Domain
A	IPR004090	Chemotaxis methyl-accepting receptor	Family
A	IPR003660	HAMP domain	Domain
A	IPR035440	Methyl-accepting chemotaxis protein, four helix bundle domain superfamily	Homologous Superfamily
A	IPR004091	Chemotaxis methyl-accepting receptor, methyl-accepting site	PTM
A	IPR004089	Methyl-accepting chemotaxis protein (MCP) signalling domain	Domain

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.