Phycoerythrin

**Definition:** The metal-free red phycobilin pigment in a conjugated chromoprotein of red algae. It functions as a light-absorbing substance together with chlorophylls.

**Tree numbers:** - D05.500.562.488.490.500.500.777 - D08.811.600.710.490.500.500.777 - D12.776.765.665 - D23.767.705