Annotations: 5ONN

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Ectoine_synth	e5onnA1	A: beta sandwiches	X: jelly-roll	H: Double-stranded beta-helix (From Topology)	T: Double-stranded beta-helix	F: Ectoine_synth	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.120.10	Mainly Beta	Sandwich	Jelly Rolls	Jelly Rolls	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF06339	Ectoine synthase (Ectoine_synth)	Ectoine synthase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	L-ectoine synthase	hydro-lyase activity ectoine synthase activity lyase activity catalytic activity carbon-oxygen lyase activity cation binding ion binding binding metal ion binding small molecule binding	ectoine metabolic process monocarboxylic acid biosynthetic process small molecule biosynthetic process oxoacid metabolic process cellular biosynthetic process cellular metabolic process carboxylic acid metabolic process organic acid biosynthetic process organic acid metabolic process ectoine biosynthetic process carboxylic acid biosynthetic process biosynthetic process small molecule metabolic process metabolic process ectoine metabolic process monocarboxylic acid biosynthetic process small molecule biosynthetic process oxoacid metabolic process cellular biosynthetic process cellular metabolic process carboxylic acid metabolic process organic acid biosynthetic process organic acid metabolic process ectoine biosynthetic process carboxylic acid biosynthetic process biosynthetic process small molecule metabolic process metabolic process cellular process monocarboxylic acid metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR010462	Ectoine synthase	Family
A	IPR011051	RmlC-like cupin domain superfamily	Homologous Superfamily
A	IPR014710	RmlC-like jelly roll fold	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.