Compound as reactive (1)
(3Z)-phytochromobilin → (3E)-phytochromobilin
Compound as product (1)
2 an oxidized ferredoxin [iron-sulfur] cluster + (3Z)-phytochromobilin ← 2 a reduced ferredoxin [iron-sulfur] cluster + 2 H+ + (Z,Z)-biliverdin-IX α
Reversible reaction (1)
an oxidized ferredoxin [iron-sulfur] cluster + (3Z)-phytochromobilin ↔ a reduced ferredoxin [iron-sulfur] cluster + (Z,Z)-biliverdin-IX α