Side chain polarity Reset Display the thioether moiety (-C-S-C-) as Ball & Stick. Add a distance measure (in Å units). Some facts on L-methionine. Abbreviation: Met. One-letter code: M. Molecular mass: 149 daltons. Side chain (or R-group) features: Structural formula: Formula: -(CH2)2-S-CH3; Category: hydrophobic; neutral. pKa: none. Return to image of Met.
Some facts on L-methionine.