L-谷氨酰胺在核苷酸合成中起重要作用。它是淋巴细胞和肠道上皮细胞的关键刺激元素。L-谷氨酰胺在内源性谷胱甘肽合成中必不可少。它是一种必需氨基酸，在压力条件下十分有用。L-谷氨酰胺参与蛋白质合成、伤口愈合、酸碱平衡的调节、细胞分化等，用作能量来源并调节免疫系统。 应用 L-谷氨酰胺-13C5用于RAW264.7细胞的气相色谱-质谱分析。此外，也用于p53Mut-亲代骨髓间充质干细胞(MSC)或p53Mut-MSC-肿瘤细胞株的代谢组学分析。 L-Glutamine plays an important role in nucleotide synthesis. It functions as a critical fuel for lymphocytes and gut epithelial cells. L-Glutamine is essential in the endogenous synthesis of glutathione. It is an essential amino acid, which is useful in stressful conditions. L-Glutamine is involved in protein synthesis, wound healing, regulating acid-base balance, cellular differentiation, acts as an energy source and modulates the immune system.L-Glutamine-13C5has been used for gas chromatography-mass spectrometry (GC-MS) of RAW264.7 cells. It has also been used for metabolomics analysis in p53Mut-parental mesenchymal stem cells (MSCs) or p53Mut-MSC-tumor lines.