Talk:Histidine
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Article Grading: The following comments were left by the quality and importance raters: (edit · refresh) I believe that the last drawing is the two tautomers of the histidine, and not the two enantiomers, so it is misleading.
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Article Grading: The following comments were left by the quality and importance raters: (edit · history · refresh · how to use this template) I believe that the last drawing is the two tautomers of the histidine, and not the two enantiomers, so it is misleading.
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The use of the single double-headed arrow between the tautomers of histidine depicted is misleading. It should be a pair of single-headed arrows to denote equilibrium not resonance.
[edit] 3D structure
The 3D structure shows the amino acid as an uncharged molecule but it should be rather present as a zwitterion. Also the IUPAC name and formula are not for the endogenous amino acid but the racemate of R and S histidine. Is it on purpose or should I change it? -- Panoramix303 (talk) 19:16, 23 March 2008 (UTC)
