Maximum likelihood tree and schematic diagrams of heme oxygenase proteins.

Abstract

Maximum likelihood (ML) tree based on an alignment of 510 heme oxygenase amino acid sequences from 1,678 taxa. Red algal heme oxygenases had three isotypes of heme oxygenase; HMOX1, HMOX2, and pbsA. HMOX1 and HMOX2 were located in the nuclear genome whereas the pbsA was encoded in the plastid genome in red algae.</p