Lucaspa,
Thank you very much for replying to my post--I do appreciate it. And it's good to know someone who has a Ph.D in biochemistry. However, I would like to say that your attitude turned me off somewhat. As a matter of fact, I did read the paper, I photocopied it. It had been a long time since I read it (a couple months) and I did not readily identify the abstract. Whoever told me you quoted it said it was recent so I thought it might be Reader and Joyce, "A ribozyme composed of only two different nucleotides,"
Nature 420(6917):841-844, 19/26 December 2002. I looked at that abstract and no further--I honestly didn't check the other. Likewise, he didn't identify what the abstract said, and I must have glossed over it in the thread he directed me to.
However, mixtures of L and D amino acids in a single protein still work... mixed chiral peptides tend to make homochiral ones.
Are there any known naturally occuring proteins of that type? As far as I've read, D amino acids are only used in the oligopeptides of bacterial cell walls and antibiotics. Also, I have heard that if a certain something is added to a polypeptide chain, it could switch them all, if I remember correctly. Do you have any references so the supposed pathways, etc.?
Moreland is a philosopher, and got his biochemistry wrong... The field is 1.5 T.
It is Moreland,
editor. The authors of the actual article are Bradley and Thaxton, of whom I'm sure you're aware and have a great commentary about
I apologize, you are correct (at least I think). Wasn't that the case where the results were withdrawn because one of the memebers of the team had tampered witht he experiments?
As far as proteins forming in water, how? And, according to a textbook I have, hydrolyzation is spontaneous and exergonic, Purves et al, Life: The Sciece of Biology, 2001 p. 99. And couldn't this take affect after Hydrothermal Vents got them together. And what are protocells?
LOL!! The reference is the abstract of the Joyce article you referenced!! Which tells me that you didn't really read the article, but instead read a creationist misquote from it... See? Sorry, Chase, busted!
Exactly, but I
couldn't find the quote, so how would I have known? And if you can find a creationist source that quotes that, I would certainly like to know. I found it quite on my own. And actually I'm not busted. If you can find one place in the creationist literature where it is quoted, I'd like to see it.
Rufus, I am actually 14 years old (as of sep 27), and did read the entire article, though much of it was above my head--thank you. I read about biochemistry when I can, and as much as I can. Lucuspa, it's great that you, with a Ph.D, can advise everyone to 'sit back' and enjoy while you argue against me. I'm trying to test different ideas (and you'll notice this post was mostly questions) and develop a view point through discussion. Your attitude was not especially impressive for a first impression.
I have a number of quotes from the scientific literature that I feel contradict some of your statements, and I have a couple of ideas I want to look up. I feel that if I engaged in any argument right now would be an
ad hominem one, because I'm a little upset. Perhaps I am a moron for questioning different veiwpoint--and perhaps not. Nevertheless, I don't wish to be treated as one.
I feel that the scientific literautre takes a much more skeptical view of the problems I've mentioned than your view, but I don't have any time right now. Exams are next week, and I've got two presentations this week, so I don't have much time. See you later, and it was a pleasure.
-Chase