Amino acids in space

[newtonian]

How many amino acids have been found in space?<br /><br />Please include ANY you all know of, not just life's amino acids.<br /><br />I am especially interested in the following 20 amino acids used in earthlife [in alphabetic order]: <br /><br />1. Alanine [Ala]<br /><br />2. Arginine [Arg]<br /><br />3. Asparagine [Asn]<br /><br />4. Aspartic Acid [Asp]<br /><br />5. Cystein [Cys]<br /><br />6. Glutamine [Gln]<br /><br />7. Glutamic acid [Glu]<br /><br />8. Glycine [Gly]<br /><br />9. Histidine [His]<br /><br />10. Isoleucine [Ile]<br /><br />11. Luecine [Leu]<br /><br />12. Lysine [Lys]<br /><br />13. Methionine [Met]<br /><br />14. Phenylalanine [Phe]<br /><br />15. Proline [Pro]<br /><br />16. Serine [Ser]<br /><br />17. Threonine [Thr]<br /><br />18. Tryptophan [Trp]<br /><br />19. Tyrosine [Tyr]<br /><br />20. Valine [Val]<br /><br />Is there any known environment that would favor these latter 20 amino acids over the many other amino acids?<br /><br />Say, for example, Titan's atmosphere, etc., etc.?

 

[newtonian]

No takers????

 

[centsworth_II]

Hey! That's a very interesting, but very tough research project. I look forward to the results of your efforts.<img src="/images/icons/smile.gif" /> <div class="Discussion_UserSignature"> </div>

 

[exoscientist]

Try searching on "amino acids" and "interstellar" on Google. <br /> This appeared as the first hit in the search:<br /><br />Amino acid detected in space.<br />11 August 2003<br />The idea that primitive life on Earth may have been seeded by a comet or asteroid impact is controversial. Since it was suggested more than 40 years ago, however, increasingly complex organic molecules have been discovered in space. Now astronomers have detected an amino acid - one of the building blocks of proteins - in interstellar dust clouds in our galaxy. The discovery of glycine in space suggests that interstellar molecules may have played a pivotal role in the prebiotic chemistry of the Earth (Y-J Kuan et al. 2003 Astrophys. J. 593 848).<br />http://physicsweb.org/articles/news/7/8/7<br /><br /><br /><br /> - Bob<br /><br /><br /><br /> <div class="Discussion_UserSignature"> </div>

 

[spacytin]

hydroxylysine ,hydroxy proline

 

[exoscientist]

Amino acids are also found in carbonaceous meteorites, which stem from comets or asteroids.<br /><br /> Bob Clark <div class="Discussion_UserSignature"> </div>