methionyln.1
/mᵻˈθʌɪənɪl/, /mᵻˈθʌɪənʌɪl/, U.S. /məˈθaɪəˌnɪl/ Chemistry. rare.
The divalent radical —SO2CH2SO2—, derived from methionic acid (methanedisulphonic acid).
ΚΠ
1924 ‘Chem. Age’ Chem. Dict. 102/1 Methionyl- (radical), the bivalent group —SO2.CH2.SO2—.
1945 Chem. Abstr. 39 App. 5965/1 Methionyl CH2(SO2)2=.
This is a new entry (OED Third Edition, December 2001; most recently modified version published online March 2022).
methionyln.2
/mᵻˈθʌɪənɪl/, /mᵻˈθʌɪənʌɪl/, U.S. /məˈθaɪəˌnɪl/ Biochemistry.
The aminoacyl group derived from methionine, CH3S(CH2)2CH(NH2)CO—.
ΚΠ
1939 Proc. National Acad. Sci. U.S.A. 25 268 (note) Sulfur assumed to be present as methionyl.
1959 Chem. Abstr. 53 20710 Methionyl chloride-HCl.
1964 Jrnl. Molecular Biol. 8 836 Artificially formylated [35S] methionyl-RNA was prepared.
1979 Biochimica et Biophysica Acta 581 325 The alkaline transition of these bands indicates the sixth iron-binding ligand of the low-spin and high-spin heme to be, respectively, a methionyl residue and a water molecule.
1990 Jrnl. Developmental Physiol. 14 74/1 Recombinant human methionyl (rh met) IGF-1..was repurified by high performance liquid chromatography.
This is a new entry (OED Third Edition, December 2001; most recently modified version published online March 2022).
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