Annotations: 4DGK

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	crtI_fam	e4dgkA2	A: a+b two layers	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C (From Topology)	T: FAD-linked reductases-C	F: crtI_fam	ECOD (1.6)
A	Amino_oxidase_1st	e4dgkA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: Amino_oxidase_1st	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.50.50.60	Alpha Beta	3-Layer(bba) Sandwich	FAD/NAD(P)-binding domain	FAD/NAD(P)-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01593	Flavin containing amine oxidoreductase (Amino_oxidase)	Flavin containing amine oxidoreductase	This family consists of various amine oxidases, including maze polyamine oxidase (PAO) [1] and various flavin containing monoamine oxidases (MAO). The aligned region includes the flavin binding site of these enzymes. The family also contains phytoene ...	This family consists of various amine oxidases, including maze polyamine oxidase (PAO) [1] and various flavin containing monoamine oxidases (MAO). The aligned region includes the flavin binding site of these enzymes. The family also contains phytoene dehydrogenases and related enzymes. In vertebrates MAO plays an important role regulating the intracellular levels of amines via there oxidation; these include various neurotransmitters, neurotoxins and trace amines [2]. In lower eukaryotes such as aspergillus and in bacteria the main role of amine oxidases is to provide a source of ammonium [3]. PAOs in plants, bacteria and protozoa oxidase spermidine and spermine to an aminobutyral, diaminopropane and hydrogen peroxide and are involved in the catabolism of polyamines [1]. Other members of this family include tryptophan 2-monooxygenase, putrescine oxidase, corticosteroid binding proteins and antibacterial glycoproteins.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Phytoene dehydrogenase	FAD binding flavin adenine dinucleotide binding binding nucleoside phosphate binding ion binding anion binding nucleotide binding heterocyclic compound binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on the CH-CH group of donors catalytic activity	tetraterpenoid metabolic process pigment metabolic process carotenoid biosynthetic process isoprenoid biosynthetic process lipid biosynthetic process pigment biosynthetic process primary metabolic process terpenoid biosynthetic process biosynthetic process tetraterpenoid biosynthetic process metabolic process cellular process terpenoid metabolic process carotenoid metabolic process tetraterpenoid metabolic process pigment metabolic process carotenoid biosynthetic process isoprenoid biosynthetic process lipid biosynthetic process pigment biosynthetic process primary metabolic process terpenoid biosynthetic process biosynthetic process tetraterpenoid biosynthetic process metabolic process cellular process terpenoid metabolic process carotenoid metabolic process isoprenoid metabolic process lipid metabolic process terpene metabolic process carotene biosynthetic process hydrocarbon metabolic process carotene metabolic process terpene biosynthetic process hydrocarbon biosynthetic process	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR002937	Amine oxidase	Domain
A	IPR014105	Carotenoid/retinoid oxidoreductase	Family
A	IPR036188	FAD/NAD(P)-binding domain superfamily	Homologous Superfamily
A	IPR008150	Phytoene dehydrogenase, bacterial-type, conserved site	Conserved Site

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

Chains	Enzyme Name	Description	Catalytic Residues
A	Phytoene desaturase (lycopene-forming) M-CSA #969	CRTI-type phytoene desaturase is an enzyme present in bacteria and fungi. The main role of the enzyme is the conversion of cis-phytoene, a 40-carbon molecule with a single cis bond, into all-trans lycopene. This reaction is a part of carotenoid synthesis. The CRTI gene encoding the enzyme is researched because of its importance in fortifying foods with provitamin A, for example Golden Rice, used to combat vitamin A malnutrition.	Defined by 4 residues: GLU:A-31ARG:A-148ASP:A-149ARG:A-152 \| Explore in 3D: M-CSA Motif Definition Extent of motif is too large to support Structure Motif searching. EC: 1.14.99 (PDB Primary Data) EC: 1.3.99.31 (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.