essential amino acid
- n an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet
essential amino acid :
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- New method for tracking cell signaling
Researchers have developed a new method for identifying the cell of origin of intracellular and secreted proteins within multicellular environments. The technique, named cell type specific labeling using amino acid precursors (CTAP), exploits the inability of vertebrate cells to synthesize essential amino acids normally required for growth and homeostasis.
July 11, 2013 - Science Daily