Annotations: 1LUC

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1luca_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Bacterial luciferase-like	Bacterial luciferase (alkanal monooxygenase)	Bacterial luciferase alpha chain, LuxA	(Vibrio harveyi ) [TaxId: 669 ],	SCOPe (2.08)
B	d1lucb_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Bacterial luciferase-like	Bacterial luciferase (alkanal monooxygenase)	Bacterial luciferase beta chain, LuxB	(Vibrio harveyi ) [TaxId: 669 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Bacterial luciferase-like	8043819	3000585	SCOP2B (2022-06-29)
B	SCOP2 Family	Bacterial luciferase (alkanal monooxygenase)	8031439	4003312	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Bacterial luciferase-like	8043817	3000585	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	Bac_luciferase	e1lucA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Bac_luciferase	ECOD (1.6)
B	Bac_luciferase	e1lucB1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Bac_luciferase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.30	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Luciferase-like domain	CATH (4.3.0)
B	3.20.20.30	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Luciferase-like domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00296	Luciferase-like monooxygenase (Bac_luciferase)	Luciferase-like monooxygenase	-	Domain
B	PF00296	Luciferase-like monooxygenase (Bac_luciferase)	Luciferase-like monooxygenase	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	BACTERIAL LUCIFERASE	oxidoreductase activity monooxygenase activity alkanal monooxygenase (FMN-linked) activity oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen catalytic activity oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen	bioluminescence metabolic process cellular process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol
B	BACTERIAL LUCIFERASE	oxidoreductase activity monooxygenase activity alkanal monooxygenase (FMN-linked) activity oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen catalytic activity oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen	bioluminescence metabolic process cellular process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR050766	Bacterial Luciferase Oxidoreductase	Family
A	IPR011251	Luciferase-like domain	Domain
A	IPR002103	Bacterial luciferase/NFP	Family
A	IPR033924	Alkanal monooxygenase	Family
A	IPR018235	Bacterial luciferase, conserved site	Conserved Site
A	IPR036661	Luciferase-like domain superfamily	Homologous Superfamily
B	IPR050766	Bacterial Luciferase Oxidoreductase	Family
B	IPR011251	Luciferase-like domain	Domain
B	IPR002103	Bacterial luciferase/NFP	Family
B	IPR033924	Alkanal monooxygenase	Family
B	IPR018235	Bacterial luciferase, conserved site	Conserved Site
B	IPR036661	Luciferase-like domain superfamily	Homologous Superfamily

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

Chains	Enzyme Name	Description	Catalytic Residues
A	alkanal monooxygenase (FMN-linked) M-CSA #132	In the bioluminescence reaction catalysed by bacterial luciferase, a flavin-dependent monooxygenase, reduced riboflavin 5' -phosphate (FMNH2) and a long-chain aliphatic aldehyde are oxidised by molecular oxygen to produce FMN, water, aliphatic carboxylic acid, and visible light with an overall quantum yield of about 0.12. It is intriguing that bacterial luciferase is unique among all known flavin-dependent monooxygenases in catalysing a light-emitting reaction. Vibrio harveyi luciferase is an alpha-beta heterodimer, the proposed earlier to be at a cleft in the alpha subunit.	Defined by 5 residues: HIS:A-44HIS:A-45CYS:A-106ASP:A-113SER:A-227 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 1.14.14.3 (PDB Primary Data) Search M-CSA Motif + EC 1.14.14.3

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.