en phycobilin (n)
― IsA ⟶
Weight: 1.0
en tetrapyrrole (n) Source: OpenCyc 2012
en tetrapyrrole (n)
― IsA ⟶
Weight: 1.0
en organic compound (n) Source: OpenCyc 2012
en porphyrin rings (n)
― IsA ⟶
Weight: 1.0
en tetrapyrrole (n) Source: OpenCyc 2012
en bilirubin (n)
― IsA ⟶
Weight: 1.0
en tetrapyrrole (n) Source: OpenCyc 2012