MpeU family


Present only in PEII-containing marine Synechococcus. It is found both in strains with a high PUB:PEB ratio and in type IV chromatic adapters (Six et al., 2007; Mahmoud et al., 2017). Interruption of mpeU caused a reduction in PUB content, impaired phycobilisome assembly and reduced growth rate more strongly in blue than green light.(Mahmoud et al.2017). therefore important for adaptation of Synechococcus spp. to blue light.


  • Mahmoud et al., 2017. Adaptation to blue light in marine Synechococcus requires MpeU, an enzyme with similarity to phycoerythrobilin lyase isomerases Front Microbiol, 8, 243.
  • Six et al., 2007. Diversity and evolution of phycobilisomes in marine Synechococcus spp.: a comparative genomics study Genome Biol, 8, R259.

Showing only unsure genes

Gene Locus tag Genbank Species Strain PBP in rods Pigment type Remark Length Last change

Model strain Model strains, Marine strains

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