Amino acid AA
<p>May 26, 2015 03:31 PM wiki.</p>
<p>
all are L-stereo left-handed isomers.</p>
<p>
20 are proteinogenic encoded directly by triplet codons.</p>
<p>May 26, 2015 03:31 PM wiki.</p>
<p>
all are L-stereo left-handed isomers.</p>
<p>
20 are proteinogenic encoded directly by triplet codons.</p>