Talk:Guanine

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Article Grading: The following comments were left by the quality and importance raters: (edit · refresh) Changed rating to "high" as this is high school/SAT biology content. - tameeria 21:10, 18 February 2007 (UTC)

"guano" is what you might be thinking of in that last sentence. -- dja

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it was mentioned on several web sites, so I put it in. guano is bat dung to my recollection, tho it may be high in Guanine ...

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My understanding is that the guanine in fish scales and some dungs is the same as the guanine in DNA, only not polymerized or not polymerized through nucleosides at least... --128.218.169.187 00:38, 15 Jun 2004 (UTC)

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OK, sorry, I had changed it, but have now changed it back. It's also a mineral, wouldn't you know. <*shrug*> As long as the biochemical meaning is there, that's good enough for me.

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The present version leaves an impression (to a layman) that beyond the liver and the pancreas, there is little guanine in the body while it is everywhere (by virtue of DNA)

According to this source ( [1] ) fish Guanine is a mixture of guanine and hypoxanthine; anyone care to corroborate so it can be added to the article? I'm no biochemist. Ziggurat 02:46, Nov 15, 2004 (UTC)

[edit] Wrong numbering

The ring positions are numbered wrong in the guanine image towards the top of the page. —The preceding unsigned comment was added by 140.251.13.35 (talk • contribs).

In addition to the above comment, 128.12.106.7 says it is backwards: [2]. So, I've swapped the labels in the image and reuploaded, see [3].

Just replying here for posterity's sake. Cburnett 20:53, 18 December 2006 (UTC)

Perhaps it should be noted that the numbering of ring positions in Guanidine differs from the generel rules of numbering of heterocyclic compounds. 130.225.102.1 (talk) 07:35, 25 February 2008 (UTC)