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On 14 June 2008, Uracil was linked from Slashdot, a high-traffic website. (Traffic) All prior and subsequent edits to the article are noted in its revision history. |
Quick question, under the Reactions sections... when an olefin reacts with elemental Bromine it forms an anti-addition product with the pi bond. i think that first picture is incorrect. but i don't have the means to correct it. the alkene should be trans-brominated under those conditions. right?
I added this section after reading this: http://www.madsci.org/posts/archives/dec97/879354206.Bc.r.html It's not exactly a peer review journal, but it makes sense. Nonetheless, if anyone has any references pertaining to this, they should really be added. Oh, I also corrected someone's contribution that stated that uracil degraded into cytosine, rather than the other way around. Fish-Face 23:40, 21 January 2006 (UTC)
This table looks interesting, but it does need some annotation before it goes back into article. maveric149
ACD/Labs0216022041
8 8 0 0 0 0 0 0 0 0 1 V2000 0.2863 -2.2800 -0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 0.2863 -3.6100 -0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1.4381 -1.6150 -0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1.4381 -4.2750 -0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 2.5899 -2.2800 -0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 2.5899 -3.6100 -0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1.4382 -0.2850 -0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 3.7417 -4.2750 -0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 1 2 2 0 0 0 0 1 3 1 0 0 0 0 2 4 1 0 0 0 0 3 5 1 0 0 0 0 4 6 1 0 0 0 0 5 6 1 0 0 0 0 7 3 2 0 0 0 0 8 6 2 0 0 0 0
M END
This table looks like a dump of a MOL file containing the atomic coordinates of the Uracil molecule. This would be perfect content for my wiki, the Computational Chemistry Wiki, if someone would give the details of how the geometry calculation was carried out, and perhaps include the hydrogen atoms as well. Ed Sanville 21:38, 7 November 2005 (UTC)
Also, I have recieved the following question, which I do not have the answer to. If somebody else can help this man out, I believe it would be a good gesture for a good cause:
Respected sir I am indian farmer Igrow mango fruit and exporting UK i see our nearest grap farm they use uracil as growth regulators can i use uracil PGR. please inform me by mail my mail adress gittu99@yahoo.com thank you girish patel
Ed Sanville 21:38, 7 November 2005 (UTC)
Glad to see this article is getting worked on quite a bit, a couple of issues I'd like to mention. I believe the synthesis section should be moved later in the article. Uracil is a biomolecule and while synthesis is of interest, the biochemistry is much more important and more likely to be why people look up the article.
The references are nice, but they should be in order. Right now it goes 1 then 10 then 8, it may be preferable to just make each footnote citation a link to the citation on the bottom instead of numbers (that way they don't have to be constantly changed!)Hichris 03:06, 9 May 2006 (UTC)
I think the synthesis should be moved up back, too. It should be in order of depth: first what a curious middle schooler needs, then enough for a high school student cramming for their chemistry finals, and then finally what a graduate student might need for there primary thesis. Kr5t 02:46, 21 May 2006 (UTC)
We should at least explain a little about tautomers and such! In fact, the adenine page has two pictures of tautomers of adenine, a sure source of confusion. I'll add a link to this page, with the observation that it explains alot of tautomers and such, in addition to being a related substance. Kr5t 02:46, 21 May 2006 (UTC)
The place and format of supplier links has been disputed, please see User Talk:213.188.227.119 and RfC on Commercial Suppliers. --Dirk Beetstra 07:49, 30 May 2006 (UTC)
Because there was a dispute about the link to a commercial supplier in this text, I have gone through the text, tried to find where this ref (ref. 2) was. Since I could not find it, I started to replace the refs with ref-tags, and clean up the section in that way. Three references are gone, in case I missed some, the old ones are down here:
Hope all is OK now. --Dirk Beetstra 19:42, 31 May 2006 (UTC)
I don't think so. 1) There's no sulfur in uracil. 2) Sulfur trioxide is highly dangerous. —Preceding unsigned comment added by 71.178.59.216 (talk) 15:27, 12 November 2008 (UTC)
There are several errors with the first chemical formula. This is what the article says:
Degradation of uracil produces substrates, aspartate, carbon dioxide, and ammonia:
Nirmos (talk) 07:47, 9 January 2010 (UTC)
"Originally discovered in 1900, it was isolated by hydrolysis of yeast nuclein that was found in bovine thymus and spleen, herring sperm, and wheat germ"
Why would yeast nuclein be found in bovine thymus and spleen ? This makes no sense. Is it a joke ? Perhaps this sentence should be rewritten.Eregli bob (talk) 19:31, 18 March 2010 (UTC)
"Found in RNA, it base-pairs with adenine and replaces thymine during DNA transcription. Methylation of uracil produces thymine.[5] It turns into thymine to protect the DNA and to improve the efficiency of DNA replication. Uracil can base-pair with any of the bases, depending on how the molecule arranges itself on the helix, but readily pairs with adenine because the methyl group is repelled into a fixed position"
This doesn't make any sense to me, neiher uracil or adenine have a methyl group to repel. Is this alluding to the A-T interaction in DNA, and if so should the final "Uracial" be "Thymine", and does the last sentence even belong in this article?
Hello,
It has been suggested to merge the article "Uracil in DNA" into "Uracil". I completely agree and would like to perform the merging. What do the others think? MultiOlga (talk) 08:29, 24 July 2013 (UTC)
The contents of the Uracil in DNA page were merged into Uracil on 5 July 2016. For the contribution history and old versions of the redirected page, please see its history; for the discussion at that location, see its talk page. |
The comment(s) below were originally left at Talk:Uracil/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.
Changed rating to "high" as this is high school/SAT biology content. - tameeria 21:14, 18 February 2007 (UTC) |
Last edited at 21:14, 18 February 2007 (UTC). Substituted at 09:42, 30 April 2016 (UTC)
Although the page cited in the synthesis of Uracil does mention Malic acid, it is possible that the name was often used interchangeably with maleic acid. Additionally, the formula mentioned says "C4H4O4", which is the formula for maleic acid, not malic acid (which is C4H6O5).
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