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Structure of Phycoerythrobilin Synthase PebS from the Cyanophage P-SSM2 in Complex with the bound Substrate Biliverdin IXa

Source organism: Prochlorococcus phage P-SSM2
Biochemical function: cobalt ion binding
Biological process: phytochromobilin biosynthetic process
Cellular component: not assigned

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EC 1.3.7.6: Phycoerythrobilin synthase

Reaction catalysed:
(3Z)-phycoerythrobilin + 2 oxidized ferredoxin = biliverdin IX-alpha + 2 reduced ferredoxin
Systematic name:
(3Z)-phycoerythrobilin:ferredoxin oxidoreductase (from biliverdin IX-alpha)
Alternative Name(s):
  • PebS

GO terms

Sequence family

Pfam Protein family (Pfam)
PF05996
Domain description: Ferredoxin-dependent bilin reductase
Occurring in:
  1. Phycoerythrobilin synthase
The deposited structure of PDB entry 2vck contains 4 copies of Pfam domain PF05996 (Ferredoxin-dependent bilin reductase) in Phycoerythrobilin synthase. Showing 1 copy in chain B.

InterPro InterPro annotation
IPR009249
Domain description: Ferredoxin-dependent bilin reductase
Occurring in:
  1. Phycoerythrobilin synthase

Structure domain

CATH CATH domain
3.40.1500.20
Class: Alpha Beta
Architecture: 3-Layer(aba) Sandwich
Topology: oxygen-dependent coproporphyrinogen oxidase
Homology: oxygen-dependent coproporphyrinogen oxidase
Occurring in:
  1. Phycoerythrobilin synthase
The deposited structure of PDB entry 2vck contains 4 copies of CATH domain 3.40.1500.20 (oxygen-dependent coproporphyrinogen oxidase) in Phycoerythrobilin synthase. Showing 1 copy in chain B.

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