Plants have two types of lycopene cyclase (β-LCY and ϵ-LCY).
In this study, we analyzed plant lycopene cyclases (LYCs).
Phylogenetic analysis revealed that β-LCYs and ϵ-LCYs were classified within β and ϵ groups.
Sequence analysis also elucidated V/IXGXGXXGXXXA motif which is common for both type of LYC.
In addition to lycopene cyclase domain, V/IXGXGXXGXXXA motif can be used for exploring LYCs proteins and to annotate the function of unknown proteins.