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Definition: Symbol for glutamyl (Glu), glutaminyl (Gln), and/or any substance that yields glutamate on acid hydrolysis of a peptide (5-oxoproline, 4-carboxyglutamate); the “x” denotes uncertainty about the precise identity of the actual molecular entity.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.