Proteinogenic amino acid
From Psychology Wiki
Community portal · Tasks to do · News · Help
Clinical · Educational · Ind&Org · Other fields · Professional · Transpersonal · World
Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Personality | Philosophy | Research Methods | Social | Statistics
Biological: Behavioural genetics · Evolutionary psychology · Neuroanatomy · Neurochemistry · Neuroendocrinology · Psychoneuroimmunology · Physiological Psychology · Psychopharmacology
Proteinogenic amino acids, also known as standard, normal, or primary amino acids, are those 20 amino acids that are found in proteins and that are coded for in the standard genetic code. Proteinogenic literally means protein building. Proteinogenic amino acids are assembled into a polypeptide (the subunit of a protein) through a process known as translation.
Non-proteinogenic amino acids are either not found in proteins (like carnitine, GABA, or L-DOPA), or not coded for in the standard genetic code (like hydroxyproline and selenomethionine). The latter often result from posttranslational modification of proteins.
Some non-proteinogenic amino acids, such as ornithine and homoserine have clear etiological reasons for biology's failure to incorporate them into proteins; both of these amino acids will cyclize against the peptide backbone and fragment the protein with relatively short half-lives.
[edit] See also
- zh:蛋白胺基酸
| This page uses content from the English-language version of Wikipedia. The original article was at Proteinogenic amino acid . The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License. |
