Annotations: 1PS1

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1ps1a_	All alpha proteins	Terpenoid synthases	Terpenoid synthases	Aristolochene/pentalenene synthase	Pentalenene synthase	(Streptomyces exfoliatus ) [TaxId: 1905 ],	SCOPe (2.08)
B	d1ps1b_	All alpha proteins	Terpenoid synthases	Terpenoid synthases	Aristolochene/pentalenene synthase	Pentalenene synthase	(Streptomyces exfoliatus ) [TaxId: 1905 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Aristolochene/pentalenene synthase	8026488	4001461	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Terpenoid synthases	8038867	3001615	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Terpenoid synthases	8038867	3001615	SCOP2B (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	PF19086	e1ps1A1	A: alpha bundles	X: Terpenoid synthases (From Topology)	H: Terpenoid synthases (From Topology)	T: Terpenoid synthases	F: PF19086	ECOD (1.6)
B	PF19086	e1ps1B1	A: alpha bundles	X: Terpenoid synthases (From Topology)	H: Terpenoid synthases (From Topology)	T: Terpenoid synthases	F: PF19086	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.600.10	Mainly Alpha	Orthogonal Bundle	Farnesyl Diphosphate Synthase	Farnesyl Diphosphate Synthase	CATH (4.3.0)
B	1.10.600.10	Mainly Alpha	Orthogonal Bundle	Farnesyl Diphosphate Synthase	Farnesyl Diphosphate Synthase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF19086	Terpene synthase family 2, C-terminal metal binding (Terpene_syn_C_2)	Terpene synthase family 2, C-terminal metal binding	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	PENTALENENE SYNTHASE	carbon-oxygen lyase activity, acting on phosphates sesquiterpene synthase activity terpene synthase activity pentalenene synthase activity lyase activity catalytic activity carbon-oxygen lyase activity cation binding ion binding binding metal ion binding small molecule binding	antibiotic metabolic process biosynthetic process metabolic process antibiotic biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR034686	Terpene cyclase-like 2	Family
A, B	IPR008949	Isoprenoid synthase domain superfamily	Homologous Superfamily

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	pentalenene synthase M-CSA #89	Pentalenene synthase is structurally related to farnesyl diphosphate synthase, in accordance with the hypothesis that successive enzymes on a biosynthetic pathway are often evolutionarily related. Pentalene is a sesquiterpene that is a precursor for the pentalenolactone family of antibiotics. The sequiterpene family of secondary metabolites is a very large one, being secreted by plants, fungi and some microorganisms.	Defined by 13 residues: PHE:A-76PHE:A-77ASP:A-80ASP:A-84ARG:A-157ARG:A-173ASN:A-219SER:A-223LYS:A-226GLU:A-227ARG:A-230TRP:A-308HIS:A-309 \| Explore in 3D: M-CSA Motif Definition Up to 10 residues are supported for Structure Motif searching, this motif has 13 residues. EC: 4.6.1.5 (PDB Primary Data)

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.