Annotations: 3I8U

Crystal structure of PcyA-181,182-dihydrobiliverdin complex

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth X]	d3i8ux_	Alpha and beta proteins (a+b)	Coproporphyrinogen III oxidase	Ferredoxin-dependent bilin reductase	Ferredoxin-dependent bilin reductase	Ferredoxin-dependent bilin reductase	(Synechocystis sp. PCC 6803 ) [TaxId: 1148 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth X]	SCOP2B Superfamily	Coproporphyrinogen III oxidase	8053221	3001418	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 [auth X]	PDEase_I	e3i8uX1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: PDEase_I	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth X]	3.40.1500.20	Alpha Beta	3-Layer(aba) Sandwich	oxygen-dependent coproporphyrinogen oxidase		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth X]	PF05996	Ferredoxin-dependent bilin reductase (Fe_bilin_red)	Ferredoxin-dependent bilin reductase	This family consists of several different but closely related proteins which include phycocyanobilin:ferredoxin oxidoreductase EC:1.3.7.5 (PcyA), 15,16-dihydrobiliverdin:ferredoxin oxidoreductase EC:1.3.7.2 (PebA) and phycoerythrobilin:ferredoxin oxi ...	This family consists of several different but closely related proteins which include phycocyanobilin:ferredoxin oxidoreductase EC:1.3.7.5 (PcyA), 15,16-dihydrobiliverdin:ferredoxin oxidoreductase EC:1.3.7.2 (PebA) and phycoerythrobilin:ferredoxin oxidoreductase EC:1.3.7.3 (PebB). Phytobilins are linear tetrapyrrole precursors of the light-harvesting prosthetic groups of the phytochrome photoreceptors of plants and the phycobiliprotein photosynthetic antennae of cyanobacteria, red algae, and cryptomonads. It is known that that phytobilins are synthesised from heme via the intermediary of biliverdin IX alpha (BV), which is reduced subsequently by ferredoxin-dependent bilin reductases with different double-bond specificities [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth X]	Phycocyanobilin:ferredoxin oxidoreductase	cation binding transition metal ion binding ion binding binding metal ion binding cobalt ion binding small molecule binding oxidoreductase activity, acting on the CH-CH group of donors, iron-sulfur protein as acceptor oxidoreductase activity oxidoreductase activity, acting on the CH-CH group of donors phycocyanobilin:ferredoxin oxidoreductase activity catalytic activity	phytochromobilin biosynthetic process tetrapyrrole metabolic process oxoacid metabolic process small molecule biosynthetic process dicarboxylic acid metabolic process carboxylic acid metabolic process carboxylic acid biosynthetic process tetrapyrrole biosynthetic process biosynthetic process small molecule metabolic process metabolic process cellular process dicarboxylic acid biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth X]	IPR009249	Ferredoxin-dependent bilin reductase	Family
A [auth X]	IPR022870	Phycocyanobilin:ferredoxin oxidoreductase	Family

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.