RpcG family


Fusion protein with C-terminal and N-terminal parts showing similarity to PecE and PecF, respectively, but with different function in vivo: RpcG attaches a PEB and isomerizes it to PUB at Cys-84 of alpha-PC (Blot et al. 2009). Found only in some marine cyanobacteria (Grébert et al. 2022).


  • Blot et al., 2009. Phycourobilin in Trichromatic Phycocyanin from Oceanic Cyanobacteria Is Formed Post-translationally by a Phycoerythrobilin Lyase-Isomerase J Biol Chem, 284, 9290-9298.
  • Grébert et al., 2022. Diversity and evolution of pigment types in marine Synechococcus cyanobacteria Genome Biol Evol, 14, evac035.

Gene Locus tag Genbank Species Strain PBP in rods Pigment type Remark Length Last change
RpcG family Syncc9605_0418 YP_380749.1 Synechococcus sp. CC9605 PC+PEI+PEII 3c 492 09-26-2011
RpcG family SYNW2025 NP_898116.1 Synechococcus sp. WH8102 PC+PEI+PEII 3c 466 09-26-2011
RpcG family BL107_08866 ZP_01469876.1 Synechococcus sp. BL107 PC+PEI+PEII 3dA/CA4-A 459 09-26-2011
RpcG family RS9916_40131 ZP_01473069.1 Synechococcus sp. RS9916 PC+PEI+PEII 3dA/CA4-A 467 09-26-2011
RpcG family CwatDRAFT_0661 ZP_00518422.1 Crocosphaera watsonii WH8501 PC+PEI Although this genome also contains rpcE/F genes, WH8501 has been shown that alpha-PC attaches a PUB (Swanson et al. 1991). So the role of rpcE/F genes is unclear. 473 08-30-2012

Model strain Model strains, Marine strains

Biogenouest Station biologique de Roscoff ANR

Copyright © 2005-2012 Biogenouest® - Legal notice - Contact : Contact GenOuest

Hosted by the GenOuest bioinformatics platform