MpeZ family
[fasta] [only sure] [only unsure]
Description
MpeZ is specific of marine Synechococcus belonging to pigment type 3dA, one of two kinds of type IV chromatic acclimaters. The mpeZ gene is located in the CA4-A genomic island, which also comprises the transcriptional regulators fciA-B-C and the yet uncharacterized gene unk10 (Humily et al. 2013; Sanfilippo et al. 2016, 2019). The CA4-A island is generally localized outside the main phycobilisome rod region, with rare exceptions (Grébert et al. 2022). MpeW has been biochemically characterized as a PEB:Cys-83 alpha-PEII lyase-isomerase in Synechococcus strain RS9916 (Shukla et al. 2012). In this and other pigment type 3dA strains, this site binds a PUB in blue light and a PEB in green light, as the result of a competition between the constitutively expressed PEB lyase gene mpeY and the PEB lyase-isomerase gene mpeZ, which is strongly activated in blue light but repressed in green light (Humily et al. 2013; Sanfilippo et al. 2019).
Motif
A motif characterising this family is available.
References
- Grébert et al., 2022. Diversity and evolution of pigment types in marine Synechococcus cyanobacteria Genome Biol Evol, 14, evac035.
- Humily et al., 2013. A gene island with two possible configurations is involved in chromatic acclimation in marine Synechococcus PLoS One, 8, e84459.
- Sanfilippo et al., 2019. Interplay between differentially expressed enzymes contributes to light color acclimation in marine Synechococcus Proc Natl Acad Sci USA, 116, 6457-6462.
- Sanfilippo et al., 2016. Self-regulating genomic island encoding tandem regulators confers chromatic acclimation to marine Synechococcus Proc Natl Acad Sci USA, 113, 6077-6082.
- Shukla et al., 2012. Phycoerythrin-specific bilin lyase-isomerase controls blue-green chromatic acclimation in marine Synechococcus Proc Natl Acad Sci USA, 49, 20136-20141.
| Gene | Locus tag | Genbank | Species | Strain | PBP in rods | Pigment type | Remark | Length | Last change |
|---|---|---|---|---|---|---|---|---|---|
| MpeZ family | sync_2228 | YP_731426.1 | Synechococcus sp. | CC9311 | PC+PEI+PEII | 3dA/CA4-A | 409 | 09-26-2011 | |
| MpeZ family | Syncc9902_1568 | YP_377570.1 | Synechococcus sp. | CC9902 | PC+PEI+PEII | 3dA/CA4-A | 409 | 09-26-2011 | |
| MpeZ family | BL107_10891 | ZP_01469555.1 | Synechococcus sp. | BL107 | PC+PEI+PEII | 3dA/CA4-A | 409 | 09-26-2011 | |
| MpeZ family | RS9916_39531 | ZP_01472949.1 | Synechococcus sp. | RS9916 | PC+PEI+PEII | 3dA/CA4-A | 413 | 09-26-2011 | |
| MpeZ family | SynRCC307_2004 | YP_001228260.1 | Synechococcus sp. | RCC307 | PC+PEI+PEII | 3eA | 414 | 09-26-2011 |
Model strains, Marine strains
Last update: 21 Apr 2023 7:14:18
