Table 1 Common Amino Acids
| Name | 1-letter Abbreviation | 3-letter Abbreviation |
| Alanine | A | Ala |
| Argnine | R | Arg |
| Aspartic acid | N | Asn |
| Asparagine | D | Asp |
| Cysteine | C | Cys |
| Glutamine | Q | Gln |
| Glutamic acid | E | Glu |
| Glycine | G | Gly |
| Hlstidine | H | His |
| Isoleucine | I | Ile |
| Leucine | L | Leu |
| Lysine | K | Lys |
| Methionine | M | Met |
| Phenylalanine | F | Phe |
| Proline | P | Pro |
| Serine | S | Ser |
| Threonine | T | Thr |
| Tryptophane | W | Trp |
| Tyrosine | Y | Tyr |
| Valine | V | Val |
Table 2 Uncommon Amino Acids [Top]
| Name | Abbreviation |
| 2-Aminoadipic acid (2-aminohexanedioic acid) | Aad |
| α-Asparagine | Aan |
| 2-Aminobutanoic acid | Abu |
| 2-Aminocapric acid (2-aminodecanoic acid) | Aca |
| α-Glutamine | Agn |
| α-Aminoisobutyric acid (α-methylalanine) | Aib |
| 2-Aminopimelic acid (2-aminoheptanedioic acid) | Apm |
| γ-Amino-β-hydroxybenzenepentanoic acid | App |
| 2-Aminosuberic acid (2-aminooctanedioic acid) | Asu |
| 2-Carboxyazetidine | Aze |
| β-Alanine | Bal |
| β-Aspartic acid | Bas |
| 3,6-Diaminohexanoic acid (β-lysine) | Bly |
| Butanoic acid | Bua |
| 4-Amino-3-hydroxybutanoic acid | Bux |
| γ-Amino-β-hydroxycyclohexanepentanoic acid | Cap |
| 3-Cyclohexylalanine | Cha |
| N5-Aminocarbonylornithine | Cit |
| 3-Sulfoalanine | Cya |
| 2,4-Diaminobutanoic acid | Dab |
| Diaminopropionic acid | Dap |
| Diaminopimelic acid | Dpm |
| 2,3-Diaminopropanoic acid | Dpr |
| 2,7-Diaminosuberic acid (2,7-diaminooctanedioic acid) | Dsu |
| S-Ethylthiocysteine | Edc |
| γ-Glutamic acid | Ggu |
| γ-Carboxyglutamic acid | Gla |
| Hydroxyacetic acid (glycolic acid) | Glc |
| Pyroglutamic acid (Pyr) (pGlu) | Glp |
| Homoarginine | Har |
| Homocysteine | Hcy |
| Homohistidine | Hhs |
| 2-Hydroxyisovaleric acid | Hiv |
| Homoserine | Hse |
| 2-Hydroxypentanoic acid | Hva |
| 5-Hydroxylysine | Hyl |
| 4-Hydroxyproline | Hyp |
| α-Amino-2-indanacetic acid | Igl |
| Isovaline | Iva |
| 2-Hydroxypropanoic acid (lactic acid) | Lac |
| Mercaptoacetic acid | Maa |
| Mercaptobutanoic acid | Mba |
| 3-Hydroxy-4-methylproline | Mhp |
| Mercaptopropanoic acid | Mpa |
| 3-Naphthylalanine | Nal |
| Norleucine | Nle |
| N-Benzylglycine | Nphe |
| Nortyrosine | Nty |
| Norvaline | Nva |
| ω-Amino acid | Oaa |
| 2-Carboxyoctahydroindole | Oic |
| Ornithine | Orn |
| Penicillamine (3-mercaptovaline) | Pen |
| 2-Phenylglycine | Phg |
| 2-Carboxypiperidine | Pip |
| Phospho-L-serine | pSer |
| Phospho-L-threonine | pThr |
| Phospho-L-tyrosine | pTyr |
| Sarcosine (N-methylglycine) | Sar |
| 1-Amino-1-carboxycyclopentane | Spg |
| Statin (4-amino-3-hydroxy-6-methylheptanoic acid) | Sta |
| 3-Thienylalanine | Thi |
| 3-Carboxyisoquinoline | Tic |
| 3-Methylvaline | Tle |
| ε-N-Trimethyllysine | Tml |
| 3-Thiazolylalanine | Tza |
| Undefined | Und |
| α-Amino-2,4-dioxopyrimidinepropanoic acid | Wil |
Table 3 Substituents [Top]
| Acetyl | Ac |
| Allyloxycarbonyl | Alloc |
| Benzyl, Bzl | Bn |
| tert-Butoxycarbonyl | Boc |
| Benzoyl | Bz |
| Carbobenzoxy (=Benzyloxycarbonyl) | Cbz |
| 2,4-Dinitrophenyl | Dnp |
| (9H-Fluoren-9-ylmethoxy)carbonyl | Fmoc |
| Formyl | For |
| Methyl | Me |
| (2-Methoxyethoxy)methyl | MEM |
| 2,4,6-Trimethylphenyl | Mes |
| Methoxymethyl | MOM |
| Methanesulfonyl | Ms |
| Myristoyl | Myr |
| 2-Nitrophenylsulfenyl | Nps |
| Nitrobenzenesulfonyl | Ns |
| p-Methoxybenzyl | PMB |
| 2-(Trimethylsilyl)ethoxymethyl | SEM |
| tert-Butyldimethylsilyl (=TBS) | TBDMS |
| Triethylsilyl | TES |
| Trifluoromethanesulfonyl | Tf |
| Triisopropylsilyl | TIPS |
| Trimethylsilyl | TMS |
| Triphenylmethyl (=Trityl) | Tr |
| Triphenylmethyl | Trityl |
| p-Toluenesulfonyl (=Tosyl) | Ts |
| Benzyloxycarbonyl | Z |
| 5-Carboxyfluorescein | 5-FAM |
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