7XRA

Drimenyl diphosphate synthase D303A from Streptomyces showdoensis in complex with farnesyl diphosphate (FPP) and Mg2+

External Resource: Annotation

Domain Annotation: ECOD Classification
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)
A	F_UNCLASSIFIED	e7xraA2	A: alpha superhelices	X: Repetitive alpha hairpins	H: alpha/alpha toroid (From Topology)	T: alpha/alpha toroid	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF13243	e7xraA1	A: alpha superhelices	X: Repetitive alpha hairpins	H: alpha/alpha toroid (From Topology)	T: alpha/alpha toroid	F: PF13243	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF13243	Squalene-hopene cyclase C-terminal domain (SQHop_cyclase_C)	Squalene-hopene cyclase C-terminal domain	-	Repeat
A	PF00432	Prenyltransferase and squalene oxidase repeat (Prenyltrans)	Prenyltransferase and squalene oxidase repeat	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	SQHop_cyclase_C domain-containing protein	isomerase activity lanosterol synthase activity catalytic activity oxidosqualene cyclase activity intramolecular transferase activity cation binding ion binding binding metal ion binding small molecule binding	organic hydroxy compound metabolic process steroid metabolic process sterol metabolic process lipid biosynthetic process alcohol metabolic process ergosterol biosynthetic process cellular lipid biosynthetic process small molecule metabolic process ergosterol metabolic process steroid biosynthetic process phytosteroid metabolic process secondary alcohol biosynthetic process small molecule biosynthetic process cellular metabolic process organic hydroxy compound metabolic process steroid metabolic process sterol metabolic process lipid biosynthetic process alcohol metabolic process ergosterol biosynthetic process cellular lipid biosynthetic process small molecule metabolic process ergosterol metabolic process steroid biosynthetic process phytosteroid metabolic process secondary alcohol biosynthetic process small molecule biosynthetic process cellular metabolic process primary metabolic process phytosteroid biosynthetic process secondary alcohol metabolic process biosynthetic process sterol biosynthetic process organic hydroxy compound biosynthetic process alcohol biosynthetic process cellular lipid metabolic process metabolic process cellular process lipid metabolic process cholesterol biosynthetic process cholesterol metabolic process triterpenoid biosynthetic process triterpenoid metabolic process isoprenoid biosynthetic process cellular biosynthetic process terpenoid biosynthetic process terpenoid metabolic process isoprenoid metabolic process	lipid droplet intracellular organelle intracellular anatomical structure organelle intracellular non-membrane-bounded organelle cellular anatomical entity non-membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR032696	Squalene cyclase, C-terminal	Domain
A	IPR018333	Squalene cyclase	Family
A	IPR008930	Terpenoid cyclases/protein prenyltransferase alpha-alpha toroid	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 R01GM133198.