Complex sentence: The elastic fiber is formed from the elastic microfibril (consisting of numerous proteins such as fibrillin, fibullin, and the elastin receptor) and amorphous elastin which consist of monomers of soluble tropoelastin which is insolubilized and crosslinked into amorphous elastin by lysyl oxidase.
Split into simpler sentences: The elastic fiber is formed from the elastic microfibril (consisting of numerous proteins such as fibrillin, fibullin, and the elastin receptor) and amorphous elastin. Amorphous elastin forms from monomers of soluble tropoelastin which is insolubilized and crosslinked into amorphous elastin by lysyl oxidase.