The D1 protein is common to plants, and in land plants exposed to sunlight, for example, the D1 protein engages in a continual cycle of breakdown and repair depending on how much sunlight a plant gets.
(a plant; gets; ) (the D1 protein; engages; ) Context(the D1 protein engages,List([89, 111))):(The D1 protein; is; common to plants)
the D1 protein engages,List([89, 111))
a plant the D1 protein The D1 protein
gets engages is
common to plants