👉 In chemistry, an ethionine is a form of amino acid that has a double bond between two氨基（NH2）. It is often used as a coenzymes in biological reactions because it can act as an allosteric modulator of protein activity.
👉 In chemistry, an ethionine is a form of amino acid that has a double bond between two氨基（NH2）. It is often used as a coenzymes in biological reactions because it can act as an allosteric modulator of protein activity.
