from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Relating to an amine or other chemical compound containing an NH2 group combined with a nonacid organic radical.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Relating to an amine.
- n. The amine functional group.
from The Century Dictionary and Cyclopedia
- Containing the group NH2: as, amino- acetic acid.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the radical -NH2
- adj. pertaining to or containing any of a group of organic compounds of nitrogen derived from ammonia
There is variation in amino acid sequence among different eukaryotic organisms.
You are suggesting that small RNA would assume the function performed by protein amino acyl synthetases and if we presume all the foregoing what leads you to think this mixture would evolve to produce a cell?
Now it seems that certain amino acids are more probable (and hence more common).
Meteorites that fall to Earth contain amino acids and organic carbon molecules such as formaldehyde.
This suggests that a substantial fraction of the genetic code has a stereochemical basis, the triplets having escaped from their original function in amino acid-binding sites to become modern codons and anticodons.
In short, the authors found that the fat tissue from the obese co-twins showed a significant up-regulation of inflammatory pathways, significantly reduced mitochondrial DNA copy number, and disturbed mitochondrial energy metabolism — statistically most significantly, the decreased catabolism of branched-chain amino acids (BCAA).
If Behe is looking for an edge he might stick close to models that link changes in amino acid sequence to protein folding and consequent changes in protein structure.
There's something to suit every chemical taste: you could chose the fairly simple dopamine and caffeine necklaces and earrings, the elegant "red wine" resveratrol and garnet necklace, or have your name or other message spelled out in amino acids.
What organizational structure would contain amino acid polymers prior to the existence of a code which would make possible orderly synthesis and inheritance?
Of course, if it all began, as they say, by coopting certain amino acids to act as catalytic groups, or fortuitously latching on to small peptides to function as cross-linkers, it was perhaps the Most Lucky Event of all that such humble material contained within it the latent potential to turn the blind watchmaker into a rather impressive designer-mimic.