Recent Examples on the WebThis medication, normally used as an anesthetic, blocks the N-methyl-D-aspartate receptor, a protein that can regulate many processes, including aspects of the stress response. Debra A. Bangasser, Scientific American, 1 Nov. 2016 But diagnosis of hepatitis often comes only when blood tests reveal elevated levels of liver enzymes, such as aspartate transaminase or alanine aminotransaminase being greater than 500 IU/L. Bruce Y. Lee, Forbes, 26 Apr. 2022 This mutation changed the amino acid aspartate (abbreviated as D) at the 614th position in the virus spike protein into glycine (G).Quanta Magazine, 25 Feb. 2021