Talk:S-Methylmethionine

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Not Actually Vitamin U

Garnett Cheney determined that there is a substance in fresh, raw cabbage juice that heals ulcers. He called that substance Vitamin U. If S-Methylmethionine has been proven to have no affect on ulcers, then why is S-Methylmethionine being referred to as Vitamin U in this article? If it doesn't heal ulcers, it clearly isn't the substance Cheney called Vitamin U. —Preceding unsigned comment added by 99.170.66.113 (talk) 03:24, 2 August 2010 (UTC)[reply]
The primary problem is actually that Vitamin U redirects to S-Methylmethionine. It anything, it should redirect to Glutamine, not S-Methylmethionine. Though it really should just have its own article as it is unconfirmed which substance is Vitamin U. —Preceding unsigned comment added by 99.137.21.103 (talk) 20:29, 3 August 2010 (UTC)[reply]

Chemical Formula

"Chemical Formula: C6H15NO2S" quoted from : http://www.reciprocalnet.org/recipnet/showsample.jsp?sampleId=27343981 -- yohans

I vote to cut the redirection, and I read consensus in doing so. .[1]. Last time I checked, a blank article is there. While fibre is a major component of Vitamin U, I believe that iso-thio-cyanates and indole-nucleated molecules are also relevant. 142.59.49.12 (talk) 12:28, 29 June 2012 (UTC)[reply]

If exact nature of the substance is still unconfirmed after 50 years, 'Vitamin U' may not even merit its own page. But it definitely doesn't belong as a list of articles completely disconnected from any context in the article. I'm deleting the list until reliable sources can show a connection between this article and 'Vitamin U'. —Chris Capoccia ^T⁄_C 11:27, 10 July 2012 (UTC)[reply]

Biochemistry

It would be a good idea to refocus this article on to the basic biochemistry of this cation (not a compound). There is extensive literature on this theme. The focus on vitamin U and Cheney G reads like an old-timey story, pioneering or not, that some might consider to be approaching fringe science. We want readers to see real biochemistry. I will continue to look for sources.--Smokefoot (talk) 23:45, 6 April 2011 (UTC)[reply]

A section that claimed radical SAM enzymes generate methyl radical was completely irrelevant to this article, since it seems no radical SAM enzyme is involved in synthesizing S-methylmethionine. The radical SAM mechanism is needed when the methyl group (donated by a different S-adenosylmethionine) is destined to attack an unactivated carbon, but it is not needed for SAM-dependent methyltransferase activity onto O, S, or activated C atoms.

Proposed merge with Vitamin U

Same chemical, different names Lesion (talk) 12:38, 23 May 2013 (UTC)[reply]

No, it iz not the same chemical with different names. This article talks about many different chemicals, and it did not talk about S-methylmethionine until a few weeks ago. Since two people seem to be confused about this, perhaps that mention of SMM should be deleted. SMM iz not I3C, DIM, glucobrassicin, raphanin, glucoraphanin, or sulphoraphane. 75.152.123.238 (talk) 13:58, 23 May 2013 (UTC)[reply]