CyanoLyase

MpeY family

Description

The mpeY gene is present in the "PEII subregion" of the "phycobilisome rod gene region" of all PEII-containing marine Synechococcus strains belonging to pigment types 3a and 3dA (Sanfilippo et al. 2019; Grébert et al. 2021); it is found at the same position as mpeQ in the phycobilisome gene region of pigment types 3c and 3dB (Grébert et al. 2021, 2022). MpeW was biochemically characterized as a PEB:Cys-83 alpha-PEII lyase in the pigment 3dA Synechococcus strain RS9916 (Sanfilippo et al. 2019). In Synechococcus pigment type 3a strains, this position therefore constitutively binds a PEB, whereas in pigment type 3dA strains, this position binds a PUB in blue light and a PEB in green light, as the result of a competition between MpeY and the PEB lyase-isomerase MpeZ, which is specifically and strongly activated in blue light but repressed in green light (Shukla et al. 2012; Humily et al. 2013).

References

Showing only sure genes

Gene Locus tag Genbank Species Strain PBP in rods Pigment type Remark Length Last change
MpeY family sync_0506 YP_729733.1 Synechococcus sp. CC9311 PC+PEI+PEII 3dA/CA4-A 398 09-26-2011
MpeY family Syncc9902_1892 YP_377893.1 Synechococcus sp. CC9902 PC+PEI+PEII 3dA/CA4-A 398 09-26-2011
MpeY family BL107_08961 ZP_01469895.1 Synechococcus sp. BL107 PC+PEI+PEII 3dA/CA4-A 400 09-26-2011
MpeY family SynWH7803_0494 YP_001224217.1 Synechococcus sp. WH7803 PC+PEI+PEII 3a 397 09-26-2011
MpeY family RS9916_40241 ZP_01473091.1 Synechococcus sp. RS9916 PC+PEI+PEII 3dA/CA4-A 398 09-26-2011
MpeY family SynRCC307_2047 YP_001228303.1 Synechococcus sp. RCC307 PC+PEI+PEII 3eA 398 09-26-2011
MpeY family Syn8016DRAFT_2756 ZP_08957409.1 Synechococcus sp. WH8016 PC+PEI+PEII 3aA 402 11-04-2011

Model strain Model strains, Marine strains

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