Talk:Phosphodiester bond

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Work in progress[edit]

I plan on doing a write-up for phosphodiester bonds with special emphasis on the biochemistry. --G3pro 9/9/04

Article title[edit]

I'm a Wikipedia newbie, but i think that the title of this article should be renamed to "Phosphodiester bond" to conform to other chemical bond names in Category:Chemical bonding. --Sergeymk 2005-10-31

I believe it should be called "Phosphodiester Linkage" but it is up for discussion. — Preceding unsigned comment added by (talk) 06:20, 30 November 2005‎ (UTC)

"Very" negatively?[edit]

-Very negatively charged- No such thing as 'very negative', took 'very' away. —Preceding unsigned comment added by (talk) 21:27, 20 March 2008 (UTC)

Image concern[edit]

Just a quick question about the image used. The third nucleoside is most definitely deoxythymidine, but why is the picture marked with U for uracil? It's very confusing. — Preceding unsigned comment added by (talk) 19:53, 3 October 2011‎ (UTC)

Yes check.svg Done (caption annotated a while ago, and now the image itself is fixed). DMacks (talk) 08:58, 10 August 2013 (UTC)

Not just for DNA and RNA[edit]

I noticed that this article includes only the the phosphodiester bond in DNA and RNA. It defines the bond as "...a group of strong covalent bonds between a phosphate group and two 5-carbon ring carbohydrates (pentoses) over two ester bonds." But as far as I know, a phosphodiester bond is more general than that-- it's when a phosphate connects two organic molecules via two bonds, each bond connecting one of the phosphate's oxygens to a carbon of the organic molecule. For example, a phospholipid has a phosphodiester bond. Right? (Here's one reference: synthesizing phospholipids using a phosphodiester bond: [1]) Marcipangris (talk) 21:38, 24 January 2011 (UTC)

That is indeed lacking here. The German-Wikipedia article de:Phosphodiesterbindung has a nice concise summary that might be a good lede here, before having major subsections for nucleosides vs other cases. DMacks (talk) 16:27, 8 August 2013 (UTC)

Moving comment from article[edit]

The following comment appeared within the article so I moved it here:

"on the side a structural formula is given to show the phosphodiaster bond which shows at the top uracil while down it is written that phosphate group is linked to thymine and two adinine bases. please rectify it" (added to article 22:17, 1 March 2012 by User:Shabz4life)

--Jameboy (talk) 06:00, 16 May 2012 (UTC)

Done. Jesanj (talk) 19:38, 18 May 2012 (UTC)
The image did appear to have thymine (with methyl group) but mislabeled it there as "U" (uracil, no methyl group)--these are deoxy's (DNA) so wouldn't make sense to have U, which is generally only in RNA anyway. I fixed the label in the image and adjusted the image-caption to sync with it. DMacks (talk) 08:58, 10 August 2013 (UTC)

Inaccurate or confusing[edit]

The article states that "when a single phosphate or two phosphates known as pyrophosphates break away and catalyze the reaction, the phosphodiester bond is formed". However, neither phosphates nor pyrophosphates catalyze the reaction; if anything, they are reactants and products of the reversible reaction, not catalysts. An appropriate enzyme would be the catalyst to the reaction, or maybe some other structure, such as those suggested by the PAH world hypothesis, but not phosphate nor pyrophosphate. Seeing how the sentence has already raised other concerns ("citation required"), I am moving it to this section. (talk) 15:44, 31 August 2012 (UTC)