14-N/15-N Metabolic Labeling Quantification

**Semantic type:** Conceptual Entity

**Definition:** A proteomic quantitation method where the samples are prepared for mass spectrometry-based quantification by culturing the organism or cells with the heavy nitrogen isotope, 15-N before the sample is collected. Then the proteins are processed and subjected to mass spectrometry-based analysis.

**Synonyms:** - 14-N/15-N Metabolic Labeling Quantitation