Annika SÃ¶renstam. Annika SÃ¶renstam (pronounced [Ëan.niË.ka ËsÃ¸Ë.rÉn.Ëstam]; listen ; born 9 October 1970) is a retired Swedish professional golfer, one of the most successful female golfers in history.
Medical Definition of METALLOTHIONEIN. : any of various metal-binding proteins involved in the metabolism of copper and zinc in body tissue (as of the liver) and in the binding of toxic metals (as cadmium).
A globular protein of muscle that binds to tropomyosin and has considerable affinity for calcium ions; a central regulatory protein of muscle contraction. Troponin T binds to tropomyosin; troponin I inhibits F-actin-myosin interactions; troponin C is a calcium-binding protein and has a key role in muscle contraction./troÂ·poÂ·nin/ (troÂ´po-nin) a complex of muscle proteins which, when combined with Ca2+, influence tropomyosin to initiate contraction. protein in the striated cell ultrastructure that modulates the interaction between actin and myosin molecules. It is believed to be part of the calcium-binding complex of the thin myofilaments. See also tropomyosin.