CpcE-I subfamily
Description
Forms a heterodimer with CpcF-I. The CpcE-I/CpcF-I complex attaches a PCB at cys-84 of alpha-PC (Fairchild et al., 1992; Swanson et al. 1992; Bhalerao et al. 1994). The crystal structure of the CpcE-I/CpEF-I heterodimer from Nostoc sp. PCC7120 was determined at 1.89-Å resolution (Zhao et al., 2017), but the crescent architecture described in this paper has recently been disputed and now thought to be a question-mark architecture (Kumaraperruma et al. 2022).
Motif
A motif characterising this family is available.
References
- Zhao et al., 2017. Structures and enzymatic mechanisms of phycobiliprotein lyases CpcE/F and PecE/F Proc Natl Acad Sci USA, 114, 3170–13175,.
Showing only unsure genes
| Gene | Locus tag | Genbank | Species | Strain | PBP in rods | Pigment type | Remark | Length | Last change |
|---|---|---|---|---|---|---|---|---|---|
| CpcE-I subfamily | N9414_13270 | ZP_01632751.1 | Nodularia spumigena | CCY9414 | PC | 1 | Sequence incomplete: lacks C-term (end of contig) | 158 | 01-10-2012 |
| CpcE-I subfamily | CYB_2736 | YP_478924.1 | Synechococcus sp. | JA-2-3B'a(2-13) | PC | 1 | This is a second copy of cpcE (cpcE-2) NOT associated with a cpcF | 276 | 12-06-2011 |
| CpcE-I subfamily | CYA_2040 | YP_475443.1 | Synechococcus sp. | JA-3-3Ab | PC | 1 | This is a second copy of cpcE (cpcE-2) NOT associated with a cpcF | 275 | 12-06-2011 |
| CpcE-I subfamily | CMJ043C | Cyanidioschyzon merolae | 10D | PC | 1 | Distantly related to cyanobacterial CpcE : many insertions in matching sequences and much longer N-term, found by tblastn | 516 | 02-21-2012 | |
| CpcE-I subfamily | CWATWH0003_3128t1 | EHJ12159.1 | Crocosphaera watsonii | WH0003 | PC+PEI | Incomplete (end of contig) | 212 | 02-22-2012 | |
| CpcE-I subfamily | Pse7367_3924 | YP_007083576.1 | Pseudanabaena sp. | PCC7367 | PC+PEI | 2 copies? | 303 | 06-20-2013 | |
| CpcE-I subfamily | ZP_18907676 | ZP_18907676.1 | Leptolyngbya sp. | PCC7375 | PC+PEI | 2 | Low protomatch score | 279 | 06-20-2013 |
| CpcE-I subfamily | Pse7367_2387 | YP_007103076.1 | Pseudanabaena sp. | PCC7367 | PC+PEI | 2 copies? | 273 | 06-20-2013 |
Model strains, Marine strains
Last update: 20 Apr 2023 15:51:45
