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|Date: 2002/05/30 08:41:26, Link|
A very recent example of a "stop" codon being
sometimes coopted for another use is the subject of two papers and a "perspective" (1-3) in the 24 May 2002 issue of Science. These all are reporting on the "new" amino acid "pyrrolysine", which is coded for by the (usually) stop codon UAG in a certain methanogenic archaeon's mRNA. To quote from (1):
Reference (1) goes into some depth, with references, as to how the stop signal is subverted in the case of selenocysteine, the only other non-canonical amino acid known to be specified by the code and not built by modification after translation. In the selenocysteine case, only a minority of the UGA codons are used to code the amino acid: most are still stop codons. Signals elsewhere in the mRNA determine which. It is still unknown just hoe the UAG coding pyrrolysine works, however.
(1) Atkins JF, Gesteland R. Science 2002 May 24;296(5572):1409-10
(2) G. Srinivasan et al., Science 296, 1459 (2002).
(3) B. Hao et al., Science 296, 1462 (2002).
|Date: 2003/02/22 16:32:29, Link|
|It is perfectly astounding to me that if I set out to write satire like that, I couldn't be a tenth that good. And those folks possibly, just possibly, aren't writing it as satire. A mind is a terrible thing......|
|Date: 2003/08/19 21:39:02, Link|
Thursday, August 21 is the last day to register to testify in person at the Sept 10 biology textbook hearings, as well as the last chance to submit written testimony. You might even get to meet Dembski.....
|Date: 2003/09/21 18:04:54, Link|
I quit taping Dembski before he was asked about being a member of DI, but my recollection of the answer was that he didn't answer, even after being asked about four times. Odd. And embarrassingly obvious that he was, and didn't want to say so.
One of the real highlights of the whole meeting (I only stayed till 10:30 PM, and then drove five hours to get home) was after a Dr Cannatella's testimony, in which he tore Johnothan Wells up - said that none of his publications were scientific, that he was intellectually dishonest, etc. Wells' little sockpuppet on the Board, Terri Leo, took issue with that, and pointed out that Wells was "a member of The American Assosciation for the Advancement of Science" and therefore a real scientist. Cannatella pointed out in return that Ms Leo could be a member too if she paid her $110 a year dues. She shut up.
(But it's up to $129 )