Catalyzes the opening of the heme ring with the release of iron. Key enzyme in the synthesis of the chromophoric part of the photosynthetic antennae (By similarity). Upon overexpression in E.coli with PCB:ferredoxin oxidoreductase, CpeS and either CpcB or PecB permits synthesis of phycocyanin-coupled CpcB or PecB.

Belongs to the heme oxygenase family.

238 amino acids

MSSNLANKLRVGTKKAHTMAENVGFVKCFLKGVVEKSSYRKLVANFYYVYSAMEEEMEKHSQHPIVSKINFSQLNRKQTLEQDLSYYYGANWREQIQLSPAGEAYVQRIREISATEPELLIAHSYTRYLGDLSGGQILKNIAVTAMNLNDGQGTAFYEFADISDEKAFKAKYRQTLDELAIDEATGDRIVDEANAAFGMNMKMFQELEGNLIKAIGMMLFNTLTRKRTRGATELATAE

26.9 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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