n. [ L. sericus silken. ] (Chem.) one of the natural L-amino acids, obtainable as a white crystalline nitrogenous substance by the action of dilute sulphuric acid on silk gelatin. It is found in many proteins, and, having a free primary hydroxyl group on the side chain, is involved in the catalytic action at the active site of some enzymes, such as proteases. The IUPAC abbreviation for serine in protein sequences is Ser. Chemically it is 2-amino-3-hydroxy-propanoic acid (C3H7NO3), HO.CH2.CH(NH2).COOH. [ 1913 Webster +PJC ]
[るり, ruri] (n) (1) lapis lazuli; (2) (abbr) (See 瑠璃色) lapis lazuli (color); (3) (abbr) (See 吠瑠璃) beryl; (4) (abbr) (See 小瑠璃, 大瑠璃, 瑠璃鶲) mall blue passerine bird (esp. the blue-and-white flycatcher and the Siberian blue robin, but also the red-flanked bluetail); (5) (obsc) glass #16,484[Add to Longdo]
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