Complex sentence: Meldonium has also been shown by nuclear magnetic resonance to bind to carnitine acetyltransferase, one of a group of ubiquitous enzymes that play pivotal roles in cellular energy metabolism.
Split into simpler sentences: Meldonium has also been shown by NMR to bind to carnitine acetyltransferase. Carnitine acetyltransferase belongs to a family of ubiquitous enzymes that play pivotal roles in cellular energy metabolism.