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Tip: Categorizing images
Thanks a lot for contributing to the Wikimedia Commons! Here's a tip to make your uploads more useful: Why not add some categories to describe them? This will help more people to find and use them.
1) If you're using the UploadWizard, you can add categories to each file when you describe it. Just click "more options" for the file and add the categories which make sense:
2) You can also pick the file from your list of uploads, edit the file description page, and manually add the category code at the end of the page.
- [[Category:Category name]]
For example, if you are uploading a diagram showing the orbits of comets, you add the following code:
- [[Category:Astronomical diagrams]]
When picking categories, try to choose a specific category ("Astronomical diagrams") over a generic one ("Illustrations"). Pro-tip: The CommonSense tool can help you find the best category for your image.
- Image:Peptide Synthesis.png was uncategorized on 29 November 2009 CategorizationBot (talk) 10:45, 30 November 2009 (UTC)
Typo in File:Aa.svg
- Thanks for the fix! But you re-introduced a different spelling error: Tyr became Try. DMacks (talk) 15:06, 28 January 2011 (UTC)
Threonine 4th carbon
I am no chemist, I don't see the 4th carbon in Threonine in your chart of 21 amino acids (Wikipedia 'Amino Acid'). In the Threonine article there is an H3C at the end of the three carbon string, but it's blank in your figure. (Don Fulton)
The CH3 is implied by the line. It is optional to include it, and by convention, it is left out. It should only ever be included where all ends are explicitly labelled for clarity (not in this case)
A message to OTRS suggests that "The amino acid Tyrosine is in the wrong category. It is placed in the non-polar grouping, when in fact it is a polar and uncharged molecule" in your (wonderful!) table. I am completely unqualified to make any assumptions here, so I'll just ask you to look into it and move it if that indeed is the case. Asav (talk) 16:43, 23 October 2011 (UTC) (Wikimedia OTRS Team)
Yes, tyrosine is in fact a polar side group and needs to be placed into the correct group in the chart. (Matt Miles)
Thank you for your comments however, Tyrosine is hydrophobic and therefore is in the correct category. Here is another amino acid categorization for your reference: http://www.sigmaaldrich.com/life-science/metabolomics/learning-center/amino-acid-reference-chart.html
Hi, I really love your vector graphics and I appreciate your work very much. I noticed that you placed histidine into the "positively charged" category, which I think it's perfectly correct, so can you protonate it with just a few seconds of work so as to match its category? Thanks a lot for your work once again! LHcheM (talk) 10:28, 21 September 2012 (UTC)
Thanks! Regarding your question, Histidine is not charged under physiological pH 7.4. It is in that category because it can become protonated at more basic pH or in an enzyme active site for instance.