Table 2. Table of Modified Amino Acids for Which Charge Parameters Are Presented in This Work Grouped by Scaffold Amino Acida.
| alanine | phenylalanine | asparagine | aspartic acid | cysteine |
| α-aminoisobutyric acid (AIB) | (R)-α-methyl-phenylalanine (MPH) | N4-methyl-asparagine (MEN) | N-methylaspartic acid (NMD) | (R)-l-α-methylcysteine (MCY) |
| 2-aminobutyric acid (ABA) | 2-ethyl-4-O-methyl-biphenylalanine (TEF) | (2s,4s)-2,5-diamino-4-hydroxy-5-oxopentanoic acid (GHG) | 2-amino-propanedioic acid (FGL) | cysteine acetamide (YCM) |
| adamanthane (ADA) | 3-methyl-biphenylalanine (TMB) | glutamine hydroxamate (HGA) | 3-methyl-aspartic acid (2AS) | N-methylcysteine (NMC) |
| 2-aminoheptanoic acid (AHP) | 3-O-methyl-biphenylalanine (TOM) | N-methyl-asparagine (NMN) | 2-amino-6-oxopimelic acid (26P) | carboxymethylated cysteine (CCS) |
| 3-cyclopentylalanine (CP3) | 2-ethyl-biphenylalanine (EBP) | β-asparagine (NBA) | β-aspartic acid (DBA) | benzylcysteine (BCS) |
| diethylalanine (DLE) | 2-methyl-4-O-methyl-biphenylalanine (MFO) | tryptophan | glycine | s-(2-hydroxyethyl)-cysteine (OCY) |
| R(+)-α-Allylalanine (AAL) | 2-methyl-biphenylalanine (MBP) | 5-methyltryptophan (MTR) | 2-indanyl-glycine (IGL) | s-acetonylcysteine (CSA) |
| (R)-α-ethyl alanine (REA) | biphenylalanine (BFA) | 1-methyltryptophan (OMW) | vinylglycine (LVG) | β-cysteine (CBA) |
| (S)-α-ethyl alanine (SEA) | 2-methylphenylalanine (MH2) | N-methyltryptophan (NMW) | phenylglycine (004) | methionine |
| cyclohexylalanine (ALC) | 3-methylphenylalanine (APD) | 2-hydroxytryptophan (TRO) | 4-hydroxyphenylglycine (D4P) | hydroxyl-methionine (ME0) |
| 1-napthylalanine (ALN) | 4-methylphenylalanine (4PH) | 4-amino-tryptophan (4IN) | (2s)-amino(3,5-dihydroxyphenyl)-ethanoic acid (3FG) | ethionine (ESC) |
| 2-napthylalanine (NAL) | 4-tert-butyl-phenylalanine (TP4) | 6-methyltryptophan (TR6) | N-methylglycine (NMG) | N-methyl-methionine (MME) |
| 5-hydroxy-1-napthalene (NO1) | 4-amino-phenylalanine (HOX) | 5-methoxytryptophan (MT5) | 2-allyl-glycine (2AG) | β-methionine (MBA) |
| 6-hydroxy-2-naphthalene (NO2) | 4-methoxy-phenylalanine (0A1) | β-hydroxy-tryptophane (HTR) | β-glycine (GBA) | leucine |
| 3-(9-anthryl)-alanine (ANT) | m-amidinophenyl-3-alanine (APM) | 5-hydroxytryptophan (HRP) | valine | t-butyl-leucine (BUG) |
| 3-(2-pyridyl)-alanine (PY2) | 4-carbamimidoyl-phenylalanine (0BN) | β-tryptophan (WBA) | (R)-(+)-α-methylvaline (MVL) | norleucine (NLE) |
| 3-(3-pyridyl)-alanine (PY3) | 4-hydroxymethyl-phenylalanine (4HP) | tyrosine | norvaline (NVA) | 5-oxo-norleucine (ONL) |
| 3-(4-pyridyl)-alanine (PY4) | 3-ethyl-phenylalanine (DMP) | O-methyltyrosine (OMY) | N-methyl-valine (MVA) | N-methyl-leucine (MLE) |
| 3-(2-quinolyl)-alanine (Q32) | 3,4-dimethylphenylalanine (D34) | O-ethyltyrosine (OEY) | β-valine (VBA) | homoleucine (HLE) |
| 3-(3-quinolyl)-alanine (Q33) | phenylserine (BB8) | O-allyltyrosine (OAY) | threonine | (R)-α-methylleucine (RML) |
| 3-(4-quinolyl)-alanine (Q34) | homophenylalanine (HPE) | N-methyltyrosine (NMY) | N-methylthreonine (NMT) | β-hydroxyleucine (HLU) |
| 3-(5-quinolyl)-alanine (Q35) | 3,3-diphenylalanine (DIF) | O-tyrosine (OTY) | o-methyl-threonine (OLT) | hydroxynorvaline (VAH) |
| 3-(6-quinolyl)-alanine (Q36) | kynurenine (KYN) | 3-amino-tyrosine (TY2) | β-threonine (TBA) | β-leucine (LBA) |
| 3-(8-hydroxyquinolin-3-yl)-alanine (HQA) | N-methyl-phenylalanine (MEA) | 3-amino-6-hydroxy-tyrosine (TYQ) | lysine | serine |
| N-methylalanine (NMA) | β-phenylalanine (FBA) | (β-R)-β-hydroxy-tyrosine (OMX) | (R)-α-methylornithine (RMO) | homoserine (HSE) |
| 1-pyrenylalanine (PAL) | isoleucine | β-tyrosine (YBA) | (S)-α-methylornithine (SMO) | 2-amino-5-hydroxypentanoic acid (LDO) |
| (R)-2-(2′-propenyl)-alanine (PRP) | N-methylisoleucine (NMI) | glutamic acid | 2,3-diaminopropanoic acid (DPP) | 6-hydroxy-norleucine (AA4) |
| (R)-2-(4′-pentenyl)-alanine (PEN) | allo-isoleucine (IIL) | N-methylglutamic acid (NME) | diaminobutyric acid (DAB) | N-methyl-serine (NMS) |
| (R)-2-(7′-octenyl)-alanine (OCT) | 3-methyl-alloisoleucine (I2M) | (3r)-3-methyl-glutamic acid (LME) | (2s)-2,8-diaminooctanoic acid (HHK) | β-serine (SBA) |
| β-alanine (AAB) | β-isoleucine (IBA) | (3s)-3-methyl-glutamic acid (MEG) | N-methyl-lysine (NMK) | histidine |
| glutamine | arginine | 2s,4r-4-methylglutamate (SYM) | β-lysine (KBA) | N-methylhistidine (NMH) |
| N-methylglutamine (NMQ) | N-methylarginine (NMR) | 5-o-methyl-glutamic acid (GME) | ||
| N5-methyl-glutamine (MEQ) | ||||
| 3-methyl glutamine (LMQ) | ||||
| β-glutamine (QBA) |
a
Corresponding three-letter codes are listed in parentheses following each amino acid.