| Amino acid | Process | CHARMM36 | Name |
| TYR | Methylation | 0A1 | 4-methoxy-L-phenylalanine |
| TRP | Hydroxylation | 0AF | 7-hydroxy-L-tryptophan |
| PHE | Carbamimidoylation | 0BN | 4-carbamimidoyl-L-phenylalanine |
| ASP | Methylsulfanylation | 0TD | (3S)-3-(methylsulfanyl)-L-aspartic acid |
| GLY | Allylation | 2AG | 2-allyl-glycine |
| ASP | Methylation | 2AS | 3-methyl-L-aspartic acid |
| CYS | Peroxydation | 2CO | S-hydroperoxy-L-cysteine |
| CYS | Difluoromethylation | 2FM | S-(difluoromethyl)-homo-L-cysteine |
| HIS | Fluoridation | 2HFD | 2-fluoro-L-histidine |
| TYR | Сhlorination | 2LT | 3,5-dichloro-L-tyrosine |
| ARG | Methylation | 2MR | N3,N4-dimethyl-L-arginine |
| PHE | Cyanidation | 3CF | 3-cyano-L-phenylalanine |
| TYR | Сhlorination | 3СЕ | 3-chloro-L-tyrosine |
| GLU | Hydroxylation | 3GL | 4-hydroxy-L-glutamic-acid |
| PHE | Bromination | 4BF | 4-bromo-phenylalanine |
| PHE | Cyanidation | 4CF | 4-cyano-L-phenylalanine |
| MET | Nitridilation | 4CY | Nitrilo-L-methionine |
| PRO | Fluoridation | 4FB | (4S)-4-fluoro-L-proline |
| TRP | Fluoridation | 4FW | 4-fluoro-L-tryptophan |
| PHE | Hydroxymethylation | 4HMP | 4-hydroxymethyl-L-phenylalanine |
| TRP | Hydroxylation | 4HT | 4-hydroxy-L-tryptophan |
| TRP | Amination | 4IN | 4-amino-L-tryptophan |
| PHE | Methylation | 4PH | 4-methyl-L-phenylalanine |
| CYS | Addition | 5CS | 2-amino-3-(cystein-S-yl)-isoxazolidin-5-yl-acetic acid |
| TRP | Сhlorination | 6CW | 6-chloro-L-tryptophan |
| ALA | Addition | 32T | 3-(4H-thieno[3,2-b]pyrrol-6-yl)-L-alanine |
| CYS | Addition | 143 | S-2,3-dihydro-5-glycin-2-yl-isoxazol-3-yl-L-cysteine |
| PHE | Сhlorination | 200 | 4-chloro-L-phenylalanine |
| ARG | Methylation | AGM | 5-methyl-L-arginine |
| CYS | Addition | AGT | S-(S)-amino[(4-aminobutyl)amino]methyl-L-cysteine |
| ASN | Hydroxylation | AHB | Beta-hydroxy-L-asparagine |
| ALA | Addition | ALC | 3-cyclohexyl-L-alanine |
| ALA | Addition | ALN | 1-naphthyl-L-alanine |
| THR | Sidechain isomer | ALO | allo-threonine |
| SER | Sulfooxydation | ALS | (3S)-3-(sulfooxy)-L-serine |
| LYS | Acetylation | ALY | N6-acetyl-L-lysine |
| ALA | Addition | ANTH | 3-(9-anthryl)-alanine |
| PRO | Acetylation | AP2 | acetyl-prolineamide |
| PHE | Methylation | APD | 3-Methyl-phenylalanine |
| ALA | Methylation | APM | m-amidinophenyl-3-alanine |
| ARG | Hydroxylation | ARO | c-gamma-hydroxy arginine |
| ALA | Acetylation | AYA | N-acetylalanine |
| ALA | Addition | AZDA | azido-alanine |
| ALA | Addition | AZH | azidohomoalanine |
| BB8 | Addition | BB8 | Phenylserine |
| CYS | Addition | BCS | Benzylcysteine |
| ASP | Sidechain isomer | BHD | beta-hydroxyaspartic acid |
| PHE | Addition | BIF | 4,4-biphenylalanine |
| ILE | Bromination | BIU | 5-bromo-L-isoleucine |
| ALA | Addition | BTH3 | 3-(3-benzothienyl)-alanine |
| TRP | Bromination | BTR | 6-bromo-tryptophan |
| TYR | Bromination | BYR | 3-bromo-L-tyrosine |
| ALA | Сhlorination | C2N | 3-chloro-D-alanine |
| CYS | Carboxymethylation | CCS | carboxymethylated cysteine |
| GLU | Sidechain isomer | CGU | gamma-carboxy-glutamic acid |
| CYS | Addition | CGV | S-[(R)-carboxy(hydroxy)methyl]-L-cysteine |
| GLY | Addition | CHG | Cyclohexylglycine |
| ARG | Deamination | CIR | Citrulline |
| CYS | Addition | CME | S,S-(2-hydroxyethyl)thiocysteine |
| PHE | Cyanidation | CNP2 | 2-cyano-phenylalanine |
| PHE | Chlorination | CP24 | 2,4-dichloro-phenylalanine |
| PHE | Chlorination | CP34 | 3,4-dichloro-phenylalanine |
| ALA | Addition | CPA3 | 3-cyclopentyl-alanine |
| GLY | Addition | CPG2 | 2-chloro-phenylglycine |
| GLY | Addition | CPG3 | 3-chloro-phenylglycine |
| GLY | Addition | CPG4 | 4-chloro-phenylglycine |
| PHE | Chlorination | CPH2 | 2-chloro-phenylalanine |
| CYS | Acetonylation | CSA | S-acetonylcysteine |
| CYS | Hydroxylation | CSO | S-hydroxycysteine |
| CYS | Addition | CSS | S-mercaptocysteine |
| CYS | Sulfonylation | CSU | cysteine-S-sulfonic acid |
| CYS | Oxidation | CSX | S-oxy cysteine |
| TRP | Chlorination | CTE | 7-chloro-tryptophan |
| THR | Chlorination | CTH | 4-chloro-threonine |
| MET | Carboxylation | CXM | N-carboxymethionine |
| CYS | Addition | CYD | 2-amino-6-(cystein-S-yl)-5-oxo-hexanoic acid |
| PHE | Hydroxymethylation | D4HMP | 4-hydroxymethyl-D-phenylalanine |
| GLY | Addition | D4P | 4-Hydroxy-phenylglycine |
| ARG | Methylation | DA2 | NG,NG-dimethyl-L-arginine |
| PHE | Hydroxylation | DAH | 3,4-Dihydroxy-phenylalanine |
| ALA | Addition | DANTH | 3-(9-anthryl)-D-alanine |
| ALA | Addition | DAZDA | azido-D-alanine |
| ALA | Addition | DBTH3 | 3-(3-benzothienyl)-D-alanine |
| TYR | Bromination | DBY | 3,5-dibromotyrosine |
| ALA | Addition | DBZ | 3-(benzoylamino)-L-alanine |
| PHE | Cyanidation | DCNP2 | 2-cyano-D-phenylalanine |
| PHE | Chlorination | DCP24 | 2,4-dichloro-D-phenylalanine |
| PHE | Chlorination | DCP34 | 3,4-dichloro-D-phenylalanine |
| ALA | Addition | DCPA3 | 3-cyclopentyl-D-alanine |
| GLY | Addition | DCPG2 | 2-chloro-D-phenylglycine |
| GLY | Addition | DCPG3 | 3-chloro-D-phenylglycine |
| GLY | Addition | DCPG4 | 4-chloro-D-phenylglycine |
| PHE | Chlorination | DCPH2 | 2-chloro-D-phenylalanine |
| ALA | Ethylation | DDILE | diethyl-D-alanine |
| ALA | Addition | DDIPH | 3,3-diphenyl-D-alanine |
| ALA | Addition | DDMP3 | 3-ethyl-phenyl-D-alanine |
| ALA | Hydroxylation | DDZ | 3,3-dihydroxy-alanine |
| GLU | Fluoridation | DFGA4 | 4-fluoro-D-glutamic acid |
| GLY | Addition | DFPG2 | 2-fluoro-phenyl-D-glycine |
| GLY | Addition | DFPG3 | 3-fluoro-phenyl-D-glycine |
| GLY | Addition | DFPG4 | 4-fluoro-phenyl-D-glycine |
| ALA | Addition | DFPH2 | 2-fluoro-phenyl-D-alanine |
| ALA | Addition | DFPH3 | 3-fluoro-phenyl-D-alanine |
| ALA | Addition | DFUA2 | (2-furyl)-D-alanine |
| VAL | Fluoridation | DFVAL | 3-fluoro-D-valine |
| ILE | Hydroxylation | DHIL4 | 4-hydroxy-D-isoleucine |
| LEU | Sidechain isomer | DHLEU | homo-D-leucine |
| SER | Sidechain isomer | DHSER | homo-D-serine |
| ALA | Addition | DIPH | 3,3-diphenylalanine |
| ASP | Methylation | DMK | 3,3-dimethyl aspartic acid |
| TRP | Methoxydation | DMOT5 | 5-methoxy-D-tryptophan |
| PHE | Ethylation | DMP3 | 3-ethyl-phenylalanine |
| PHE | Methylation | DMP34 | 3,4-dimethyl-D-phenylalanine |
| ALA | Addition | DMPH2 | 2-methyl-phenyl-D-alanine |
| TRP | Methylation | DMTR5 | 5-methyl-D-tryptophan |
| TRP | Methylation | DMTR6 | 6-methyl-D-tryptophan |
| ALA | Amination | DNP | 3-amino-alanine |
| ARG | Deamination | DORN | (delta)ornithine |
| ALA | Addition | DPYR2 | 3-(2-Pyridyl)-D-alanine |
| ALA | Addition | DPYR3 | 3-(3-Pyridyl)-D-alanine |
| ALA | Addition | DPYR4 | 3-(4-pyridyl)-D-alanine |
| ALA | Addition | DPYZ1 | 3-(1-pyrazolyl)-D-alanine |
| ALA | Addition | DQU32 | 3-(2-Quinolyl)-D-alanine |
| ALA | Addition | DQU33 | 3-(3-quinolyl)-D-alanine |
| ALA | Addition | DQU34 | 3-(4-quinolyl)-D-alanine |
| ALA | Addition | DQU35 | 3-(5-quinolyl)-D-alanine |
| ALA | Addition | DQU36 | 3-(6-quinolyl)-D-alanine |
| ALA | Addition | DQX32 | 3-(2-quinoxalyl)-D-alanine |
| ALA | Addition | DSTYA | Styryl-D-alanine |
| PHE | Addition | DTBP4 | 4-tert-butyl-D-phenylalanine |
| ALA | Addition | DTEZA | 3-(2-tetrazolyl)-D-alanine |
| GLY | Addition | DTFG2 | 2-(trifluoromethyl)-D-phenylglycine |
| GLY | Addition | DTFG3 | 3-(trifluoromethyl)-D-phenylglycine |
| GLY | Addition | DTFG4 | 4-(trifluoromethyl)-D-phenylglycine |
| LEU | Addition | DTFLE | 5,5,5-trifluoro-D-leucine |
| PHE | Addition | DTFP2 | 2-(trifluoromethyl)-D-phenylalanine |
| PHE | Addition | DTFP3 | 3-(trifluoromethyl)-D-phenylalanine |
| PHE | Addition | DTFP4 | 4-(trifluoromethyl)-D-phenylalanine |
| ALA | Addition | DTHA3 | 3-(3-thienyl)-D-alanine |
| GLY | Addition | DTHG2 | 2-thienyl-D-glycine |
| GLY | Addition | DTHG3 | 3-thienyl-D-glycine |
| ARG | Addition | DTHIC | thio-D-citrulline |
| ALA | Addition | DTZA4 | (4-thiazolyl)-D-alanine |
| ASP | Dehydrogenation | DYA | Didehydroaspartate |
| MET | Ethylation | ESC | Ethionine |
| PHE | Fluoridation | F2F | 3,4-difluoro-phenylalanine |
| PHE | Chlorination | FCL | 3-chloro-Phenylalanine |
| GLU | Fluoridation | FGA4 | 4-fluoro-glutamic acid |
| ALA | Fluoridation | FLA | Trifluoroalanine |
| MET | Formylation | FME | N-formylmethionine |
| PRO | Fluoridation | FP9 | (4R)-4-fluoro-L-proline |
| GLY | Addition | FPG2 | 2-fluoro-phenylglycine |
| GLY | Addition | FPG3 | 3-fluoro-phenylglycine |
| GLY | Addition | FPG4 | 4-fluoro-phenylglycine |
| ALA | Fluoridation | FPH2 | 2-fluoro-phenylalanine |
| ALA | Fluoridation | FPH3 | 3-fluoro-phenylalanine |
| TRP | Fluoridation | FT6 | 6-fluoro-L-tryptophan |
| TRP | Fluoridation | FTR | 5-fluoro-L-tryptophan |
| VAL | Fluoridation | FVAL | 3-fluoro-valine |
| ARG | Sidechain isomer | GGBP | Canavanine |
| GLY | Addition | GL3 | Thioglycin |
| GLU | Methylation | GME | 5-O-methyl-glutamic acid |
| LYS | Addition | GPL | lysine guanosine-5'-monophosphate |
| MET | Elimination | HCS | homocysteine |
| GLN | Addition | HGA | glutamine hydroxamate |
| HIS | Methylation | HIC | 4-methyl-histidine |
| HIS | Methylation | HICP | 4-methyl-histidine (protonated) |
| ILE | Hydroxylation | HIL | 4-hydroxy-L-isoleucine |
| HIS | Phosphorylation | HIP | ND1-phosphonohistidine (-2) |
| ALA | Addition | HIX | 3-(1H-1,2,3-triazol-5-yl)-L-alanine |
| LEU | Sidechain isomer | HLEU | homoleucine |
| LEU | Hydroxylation | HLU | beta-hydroxyleucine |
| ARG | Sidechain isomer | HMR | beta-homoarginine |
| PHE | Amination | HOX | 4-amino-L-phenylalanine |
| PHE | Sidechain isomer | HPE | homophenylalanine |
| ALA | Addition | HQA | 3-(8-hydroxyquinolin-3-yl)-l-alanine |
| ARG | Sidechain isomer | HRG | Homoarginine |
| TRP | Hydroxylation | HRP | 5-hydroxy-tryptophan |
| SER | Sidechain isomer | HSER | homoserine |
| SER | Addition | HTI | (4S)-4-[(2S)-2-amino-3-oxopropyl]sulfanyl-L-homoserine |
| TRP | Addition | HTR | beta-hydroxy-tryptophane |
| VAL | Hydroxylation | HVA | 3-hydroxy-L-valine |
| PRO | Hydroxylation | HYP | hydroxyproline |
| ILE | Methylation | I2M | 3-methyl-L-alloisoleucine |
| GLY | Addition | I4G | N-(2-methylpropyl)glycine |
| LYS | Methylation | MLYS | N6-methyl-L-lysine |
| PRO | Amidation | TP2Z | prolineamide |
| GLY | Addition | 004 | phenylglycine |
| PHE | Addition | IAM | 4-[(isopropylamino)methyl]phenylalanine |
| ASP | Sidechain isomer | IAS | beta-L-aspartic acid |
| GLY | Addition | IGL | Alpha-amino-2-indanacetic acid |
| ILE | Sidechain isomer | IIL | Allo-Isoleucine |
| ILE | Hydroxylation | ILX | 4,5-dihydroxy-isoleucine |
| TYR | Iodation | IYR | 3-iodo-tyrosine |
| CYS | Addition | JJJ | S-(pyridin-3-ylcarbonyl)-L-cysteine |
| LYS | Addition | KCR | N-6-crotonyl-L-lysine |
| LYS | Carboxylation | KCX | Lysine NZ-carboxylic acid |
| LYS | Addition | KHB | N~6~-[(3S)-3-hydroxybutanoyl]-L-lysine |
| TRP | Decyclization | KYN | kynurenine |
| LYS | Addition | LA2 | N~6~-[(6R)-6,8-disulfanyloctanoyl]-L-lysine |
| LEU | Sidechain isomer | LDO | 6-hydroxy-l-norleucine |
| LEU | Oxidation | LED | (4R)-5-oxo-L-leucine |
| LEU | Fluoridation | LEF | (4S)-5-fluoro-L-leucine |
| LEU | Methylation | LEM | Alpha-methyl amino acid, leucine |
| GLU | Methylation | LME | (3R)-3-methyl-L-glutamic acid |
| GLN | Methylation | LMQ | 3-methyl-L-glutamine |
| GLY | Addition | LVG | Vinylglycine |
| VAL | Oxidation | LVN | 4-oxo-L-valine |
| LYS | Methylation | LYM | Alpha-methyl amino acid, lysine |
| LYS | Addition | LYX | N''-(2-coenzyme A)-propanoyl-lysine |
| LYS | Hydroxylation | LYZ | 5-hydroxylysine |
| CYS | Addition | M0H | S-(hydroxymethyl)-L-cysteine |
| CYS | Addition | M2S | 3,3-dimethyl-methionine sulfoxide |
| LYS | Methylation | M3L | N-trimethyllysine |
| ALA | Methylation | MAA | N-methyl-L-alanine |
| LYS | Ethylation | MCL | NZ-(1-carboxyethyl)-lysine |
| CYS | Addition | MCS | Malonyl cysteine |
| MET | Hydroxylation | ME0 | Hydroxy-L-methionine |
| GLU | Methylation | MEG | (3S)-3-methyl-L-glutamic acid |
| ASN | Methylation | MEN | N-methyl-asparagine |
| GLN | Methylation | MEQ | N5-methyl-glutamine |
| GLY | Methylation | MGY | N-methylglycine, kevo |
| MET | Oxidation | MHO | S-oxymethionine |
| HIS | Methylation | MHS | N1-methylated histidine |
| HIS | Methylation | MHSP | N1-methylated histidine (protonated) |
| SER | Phosphorylation | MIR | Monoethylphosphorylserine |
| LYS | Methylation | MLY | N-dimethyl-lysine |
| LYS | Methylation | MLZ | N-methyl-lysine |
| TRP | Methoxylation | MOT5 | 5-methoxy-tryptophan |
| PHE | Methylation | MP34 | 3,4-dimethyl-phenylalanine |
| PRO | Methylation | MP8 | (4R)-4-methyl-L-proline |
| PHE | Methylation | MPH2 | 2-methyl-phenylalanine |
| TRP | Methylation | MTR5 | 5-methyl-tryptophan |
| TRP | Methylation | MTR6 | 6-methyl-tryptophan |
| PHE | Hydroxylation | MTY | Meta-tyrosine |
| ALA | Addition | NAL | 2-naphthyl-alanine |
| HIS | Phosphorylation | NEP | N1-phosphonohistidine |
| TYR | Nitration | NIY | Meta-nitro-tyrosine |
| LEU | Sidechain isomer | NLE | Nor-leucine |
| GLY | Addition | NMGLYD | N-methylglycine dipeptide, kevo |
| VAL | Sidechain isomer | NVA | Norvaline |
| SER | Acetylation | OAS | O-acetylserine |
| CYS | Sulfonylation | OCS | Cysteinesulfonic acid |
| CYS | Addition | OCY | S-(2-hydroxyethyl)-L-cysteine |
| THR | Methylation | OLT | O-methyl-L-threonine |
| TYR | Hydroxylation | OMX | (BetaR)-beta-hydroxy-L-tyrosine |
| TYR | Addition | OMY | (BetaR)-3-chloro-beta-hydroxy-L-tyrosine |
| LEU | Sidechain isomer | ONL | 5-oxo-L-norleucine |
| ARG | Other | ORN | Ornithine |
| SER | Sulfonylation | OSE | O-sulfo-L-serine |
| PHE | O-tyrosine | OTYR | O-tyrosine |
| PHE | Addition | PBF | 4-benzoyl-phenylalanine |
| PHE | Fluoridation | PF5 | Pentafluoro-phenylalanine |
| PHE | Fluoridation | PFF | 4-fluoro-phenylalanine |
| ASP | Phosphorylation | PHD | Aspartyl phosphate |
| ASP | Phosphorylation | PHDP | Aspartyl phosphate (protonated) |
| PHE | Iodation | PHI | 4-Iodo-Phenylalanine |
| PHE | Nitration | PPN | 4-nitro-phenylalanine |
| CYS | Addition | PR3 | S,S-propylthiocysteine |
| PRO | Addition | PR4 | 1-[(2R)-2-carboxy-2-hydroxyethyl]-L-proline |
| LYS | Addition | PRK | N~6~-propanoyl-L-lysine |
| PRO | Sulfidation | PRS | Thioproline |
| PRO | Hydroxylation | PXU | 2-hydroxy-L-proline |
| ALA | Addition | PYR2 | 3-(2-Pyridyl)-alanine |
| ALA | Addition | PYR3 | 3-(3-Pyridyl)-alanine |
| ALA | Addition | PYR4 | 3-(4-pyridyl)-alanine |
| ALA | Addition | PYZ1 | 3-(1-pyrazolyl)-alanine |
| CYS | Carbamoylidation | QCS | S-carbamoyl-L-cysteine |
| CYS | Addition | QPA | S-[(1S)-1-carboxy-1-(phosphonooxy)ethyl]-L-cysteine |
| ALA | Addition | QU32 | 3-(2-quinolyl)-alanine |
| ALA | Addition | QU33 | 3-(3-quinolyl)-alanine |
| ALA | Addition | QU34 | 3-(4-quinolyl)-alanine |
| ALA | Addition | QU35 | 3-(5-quinolyl)-alanine |
| ALA | Addition | QU36 | 3-(6-quinolyl)-alanine |
| ALA | Addition | QX32 | 3-(2-quinoxalyl)-alanine |
| ALA | Addition | R1A | 3-{[(2,2,5,5-tetramethyl-1-oxo-2,5-dihydro-1H-pyrrolium-3-yl)methyl]disulfanyl}-D-alanine |
| SER | Addition | SBG | O-[(S)-hydroxy(methyl)phosphoryl]-L-serine |
| CYS | Addition | SCH | S-methyl-thio-cysteine |
| ALA | Addition | SCS | 3-(ethyldisulfanyl)-L-alanine |
| SER | Addition | SEB | O-benzylsulfonyl-serine |
| SER | Addition | SEN | O-[N,N-dimethylphosphoramidate]-L-serine |
| SER | Addition | SGB | O-[(S)-methyl(1-methylethoxy)phosphoryl]-L-serine |
| LYS | Sulfidation | SLZ | Thialysine |
| ASP | Phosphorylation | ASPP | 4-phospho-L-aspartate |
| GLU | Phosphorylation | GLUP | 5-phospho-L-glutamate |
| THR | Phosphorylation | THP1 | O-phospho-L-threonine (-1) |
| THR | Phosphorylation | THP2 | O-phospho-L-threonine (-2) |
| TYR | Phosphorylation | TP1 | O-Phospho-L-tyrosine (-1) |
| TYR | Phosphorylation | TP2 | O-Phospho-L-tyrosine (-2) |
| PHE | Addition | 2GX | Beta-phenyl-L-phenylalanine |
| ILE | D-isomer | DILE | D-isoleucine |
| LEU | D-isomer | DLEU | D-leucine |
| LYS | D-isomer | DLYS | D-lysine |
| MET | D-isomer | DMET | D-methionine |
| PHE | D-isomer | DPHE | D-phenilalanine |
| PRO | D-isomer | DPRO | D-proline |
| SER | D-isomer | DSER | D-serine |
| THR | D-isomer | DTHR | D-threonine |
| TRP | D-isomer | DTRP | D-tryptophan |
| TYR | D-isomer | DTYR | D-tyrosine |
| VAL | D-isomer | DVAL | D-valine |
| SER | Phosphorylation | SP1 | O-phospho-L-serine (-1) |
| SER | Phosphorylation | SP2 | O-phospho-L-serine (-2) |
| CYS | Methylation | SMC | S-methylcysteine |
| MET | Oxidation | SME | Methionine sulfoxide |
| SER | Addition | SNC | O-[(S)-amino(hydroxy)phosphoryl]-L-serine |
| ALA | Addition | STYA | Styryl-D-alanine |
| SER | Addition | SUN | O-[(R)-(dimethylamino)(ethoxy)phosphoryl]-L-serine |
| SER | Addition | SVV | O-[(S)-amino(hydroxy)phosphoryl]-L-serine |
| SER | Addition | SVX | O-[(R)-ethoxy(methyl)phosphoryl]-L-serine |
| SER | Addition | SVY | O-[bis(1-methylethoxy)phosphoryl]-L-serine |
| GLU | Methylation | SYM | 2S,4R-4-methylglutamate |
| PHE | Addition | TBP4 | 4-tert-butyl-phenylalanine |
| ALA | Addition | TEZA | 3-(2-tetrazolyl)-alanine |
| GLY | Addition | TFG2 | 2-(trifluoromethyl)-phenylglycine |
| GLY | Addition | TFG3 | 3-(trifluoromethyl)-phenylglycine |
| GLY | Addition | TFG4 | 4-(trifluoromethyl)-phenylglycine |
| LEU | Fluoridation | TFLE | 5,5,5-trifluoro-leucine |
| PHE | Addition | TFP2 | 2-(trifluoromethyl)-phenylalanine |
| PHE | Addition | TFP3 | 3-(trifluoromethyl)-phenylalanine |
| PHE | Addition | TFP4 | 4-(Trifluoromethyl)-phenylalanine |
| THR | Hydroxylation | TH6 | 4-hydroxy-L-threonine |
| ALA | Addition | THA3 | 3-(3-thienyl)-alanine |
| GLY | Addition | THG2 | 2-thienylglycine |
| GLY | Addition | THG3 | 3-thienylglycine |
| ARG | Addition | THIC | Thio-citrulline |
| ALA | Addition | TIH | 3-(2-thienyl)-alanine |
| TRP | Addition | TOX | 1-hydroperoxy-L-tryptophan |
| TRP | Hydroxylation | TRO | 2-hydroxy-tryptophan |
| TRP | Hydroxylation | TRX | 6-hydroxy-tryptophan |
| TRP | Addition | TTQ | 6-amino-7-hydroxy-L-tryptophan |
| TYR | Amination | TY2 | 3-amino-L-tyrosine |
| TYR | Iodation | TYI | 3,5-diiodotyrosine |
| TYR | Addition | TYQ | 3-amino-6-hydroxy-tyrosine |
| ALA | Addition | TZA4 | (4-thiazolyl)-alanine |
| PHE | Fluoridation | WFP | 3,5-difluoro-phenylalanine |
| CYS | Cyanidation | XCN | S-cyano-L-cysteine |
| CYS | Addition | YCM | Cysteine-S-acetamide |
| TYR | Fluoridation | YOF | 3-fluorotyrosine |
