Jump to: navigation, search ... A peptide bond is a chemical bond formed between two molecule s when the carboxyl group of one molecule reacts with the amino group of the other molecule, releasing a molecule of water (H2O). This is a dehydration synthesis re action, and usually occurs between amino acids. Peptide bond.
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Quick Access Toolbar. The Quick Access Toolbar (QAT) is a small, customizable toolbar that exposes a set of Commands that are specified by the application or selected by the user. Introduction. By default, the Quick Access Toolbar (QAT) is located in the title bar of the application window but can be configured to display below the ribbon.