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	Terpene_synth_C	e1ps1A1	A: alpha bundles	X: Terpenoid synthases (From Topology)	H: Terpenoid synthases (From Topology)	T: Terpenoid synthases	F: Terpene_synth_C	ECOD (1.6)
B	Terpene_synth_C	e1ps1B1	A: alpha bundles	X: Terpenoid synthases (From Topology)	H: Terpenoid synthases (From Topology)	T: Terpenoid synthases	F: Terpene_synth_C	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 (4.2.0)
B	1.10.600.10	Mainly Alpha	Orthogonal Bundle	Farnesyl Diphosphate Synthase	Farnesyl Diphosphate Synthase	CATH (4.2.0)

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 cellular 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
A, B	IPR054969	Pentalenene synthase	Family

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) EC: 4.2.3.7 (UniProt)

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.