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amino_acids.py
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1 import string
2 from operator import add
3 
4 amino_acids = ['A', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'K', 'L', \
5  'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'V', 'W', 'Y']
6 
7 longer_names={'ALA': 'A', 'ARG': 'R', 'ASN': 'N', 'ASP': 'D',
8  'CYS': 'C', 'GLU': 'E', 'GLN': 'Q', 'GLY': 'G',
9  'HIS': 'H', 'ILE': 'I', 'LEU': 'L', 'LYS': 'K',
10  'MET': 'M', 'PHE': 'F', 'PRO': 'P', 'SER': 'S',
11  'THR': 'T', 'TRP': 'W', 'TYR': 'Y', 'VAL': 'V'}
12 
13 one_letter_names={
14 'A':'ALA',
15 'R':'ARG',
16 'N':'ASN',
17 'D':'ASP',
18 'C':'CYS',
19 'E':'GLU',
20 'Q':'GLN',
21 'G':'GLY',
22 'H':'HIS',
23 'I':'ILE',
24 'L':'LEU',
25 'K':'LYS',
26 'M':'MET',
27 'F':'PHE',
28 'P':'PRO',
29 'S':'SER',
30 'T':'THR',
31 'W':'TRP',
32 'Y':'TYR',
33 'V':'VAL'}
34 
35 short_to_long = {}
36 for rsd in longer_names.keys():short_to_long[longer_names[rsd]] = rsd
37 
38 hpcg = {'A': 'H', 'V': 'H', 'I': 'H', 'L': 'H', 'F': 'H', 'P': 'H', 'M': 'H',
39  'G': 'G',
40  'D': 'C', 'E': 'C', 'K': 'C', 'R': 'C',
41  'S': 'P', 'T': 'P', 'Y': 'P', 'C': 'P', 'N': 'P', 'Q': 'P', 'H': 'P',
42  'W': 'P'}
43 
44 size = {'G': 66, 'A': 92, 'V': 142, 'L': 168, 'I': 169,
45  'S': 99, 'T': 122, 'C': 106, 'P': 129, 'F': 203,
46  'Y': 204, 'W': 238, 'H': 167, 'D': 125, 'N': 135,
47  'E': 155, 'Q': 161, 'M': 171, 'K': 171, 'R': 202,
48  'X': 10000}
49 
50 frequency = {'G': .075, 'A': .09, 'V': .069, 'L': .075, 'I': .046,
51  'S': .071, 'T': .060, 'C': .028, 'P': .046, 'F': .035,
52  'Y': .035, 'W': .011, 'H': .021, 'D': .055, 'N': .044,
53  'E': .062, 'Q': .039, 'M': .017, 'K': .07, 'R': .047}
54 
55 HP = {'I': 0.73, 'F': 0.61, 'V': 0.54, 'L': 0.53, 'W': 0.37,
56  'M': 0.26, 'A': 0.25, 'G': 0.16, 'C': 0.04, 'Y': 0.02,
57  'P': -0.07, 'T': -0.18, 'S': -0.26, 'H': -0.40, 'E': -0.62,
58  'N': -0.64, 'Q': -0.69, 'D': -0.72, 'K': -1.10, 'R': -1.76}
59 
60 HP['X'] = reduce(add,HP.values())/20
61 GES = {'F': -3.7, 'M': -3.4, 'I': -3.1, 'L': -2.8, 'V': -2.6,
62  'C': -2.0, 'W': -1.9, 'A': -1.6, 'T': -1.2, 'G': -1.0,
63  'S': -0.6, 'P': 0.2, 'Y': 0.7, 'H': 3.0, 'Q': 4.1,
64  'N': 4.8, 'E': 8.2, 'K': 8.8, 'D': 9.2, 'R': 12.3}
65 
66 GES['X'] = reduce(add,GES.values())/20
67 
68 
69 #from http://astral.stanford.edu/scopseq-1.55/release-notes-1.55.txt
70 extra_longer_names={'TYY': 'Y', 'ARM': 'R', 'ARG': 'R', 'HTR': 'W', 'C5C': 'C', 'CY1': 'C', 'DPN': 'F', 'BHD': 'D', 'SCS': 'C', 'TPQ': 'A', 'MEN': 'N', 'SEP': 'S', 'KCX': 'K', 'TYB': 'Y', 'NMC': 'G', 'CSS': 'C', 'CSP': 'C', 'SET': 'S', 'EFC': 'C', 'CSW': 'C', 'TRP': 'W', 'BMT': 'T', 'CSX': 'C', 'SHC': 'C', 'NLE': 'L', 'OCS': 'C', 'DSN': 'S', 'DHA': 'A', 'TPL': 'W', 'HPQ': 'F', 'CSD': 'A', 'MSE': 'M', 'MLE': 'L', 'DLE': 'L', 'CSO': 'C', 'CY3': 'C', 'NLN': 'L', 'CYM': 'C', 'BUG': 'L', 'SAR': 'G', 'PEC': 'C', 'BUC': 'C', 'DAS': 'D', 'DAR': 'R', 'CYG': 'C', 'HIC': 'H', 'HMR': 'R', 'DAH': 'F', 'LLP': 'K', 'DAL': 'A', 'CEA': 'C', 'MPQ': 'G', 'HIS': 'H', 'CYQ': 'C', 'NLP': 'L', 'CYS': 'C', 'AIB': 'A', 'MSA': 'G', 'SEL': 'S', 'PCA': 'E', 'DIV': 'V', 'DTR': 'W', 'FLA': 'A', 'IYR': 'Y', 'DNP': 'A', '2AS': 'D', 'DTY': 'Y', 'HYP': 'P', 'ASX': 'B', 'SOC': 'C', 'CME': 'C', 'PRR': 'A', 'DPR': 'P', 'DTH': 'T', 'DIL': 'I', 'TYS': 'Y', 'TYR': 'Y', 'CXM': 'M', 'GL3': 'G', 'STY': 'Y', 'ALY': 'K', 'LEU': 'L', 'TRG': 'K', 'MET': 'M', 'MAA': 'A', 'ALA': 'A', 'PHE': 'F', 'SHR': 'K', 'HIP': 'H', 'PHL': 'F', 'ALM': 'A', 'PHI': 'F', 'ALO': 'T', 'MVA': 'V', 'OMT': 'M', 'FME': 'M', 'HAR': 'R', 'DLY': 'K', '5HP': 'E', 'BNN': 'A', 'PTR': 'Y', 'SCY': 'C', 'MHS': 'H', 'SVA': 'S', 'TRO': 'W', 'THR': 'T', 'AYA': 'A', 'HAC': 'A', 'GMA': 'E', 'CLE': 'L', 'TPO': 'T', 'CHG': 'A', 'VAL': 'V', 'LYZ': 'K', 'GSC': 'G', 'LTR': 'W', 'ASL': 'D', 'OAS': 'S', 'ASN': 'N', 'CGU': 'E', 'LYM': 'K', 'PR3': 'C', 'GGL': 'E', 'ASK': 'D', 'DCY': 'C', 'SCH': 'C', 'ASA': 'D', 'ASB': 'D', 'DGL': 'E', 'DGN': 'Q', 'IIL': 'I', 'PRO': 'P', 'SAC': 'S', 'LYS': 'K', 'SER': 'S', 'ASP': 'D', 'ASQ': 'D', 'NEM': 'H', 'BCS': 'C', 'NEP': 'H', 'GLU': 'E', 'SMC': 'C', 'DSP': 'D', 'MIS': 'S', 'TYQ': 'Y', 'TIH': 'A', 'C6C': 'C', 'GLZ': 'G', 'GLY': 'G', '3AH': 'H', 'ACL': 'R', 'CCS': 'C', 'DVA': 'V', 'LLY': 'K', 'GLX': 'Z', 'DHI': 'H', 'GLN': 'Q', 'ILE': 'I', 'AGM': 'R', 'PAQ': 'Y', 'MLY':'K'}
71 
72 ##load the G-X-G surface areas
73 ## surface_area = {}
74 ## data = open('residue_surface_areas.dat','r')
75 ## line = data.readline()
76 ## line = data.readline()
77 ## for i in range(20):
78 ## l = string.split(line)
79 ## assert l[0] in amino_acids
80 ## surface_area[l[0]] = float(l[1])
81 ## line = data.readline()
82 ## data.close()
83 
84 #surface area from Rost and Sander Proteins 20,216-226
85 SA = {'A':106, 'C':135, 'D':163, 'E':194, 'F':197,
86  'G': 84, 'H':184, 'I':169, 'K':205, 'L':164,
87  'M':188, 'N':157, 'P':136, 'Q':198, 'R':248,
88  'S':130, 'T':142, 'V':142, 'W':227, 'Y':222}
89 
90 
91 modres={
92 '0CS':'ALA', ## 0CS ALA 3-[(S)-HYDROPEROXYSULFINYL]-L-ALANINE
93 '1AB':'PRO', ## 1AB PRO 1,4-DIDEOXY-1,4-IMINO-D-ARABINITOL
94 '1LU':'LEU', ## 1LU LEU 4-METHYL-PENTANOIC ACID-2-OXYL GROUP
95 '1PA':'PHE', ## 1PA PHE PHENYLMETHYLACETIC ACID ALANINE
96 '1TQ':'TRP', ## 1TQ TRP 6-(FORMYLAMINO)-7-HYDROXY-L-TRYPTOPHAN
97 '1TY':'TYR', ## 1TY TYR
98 '23F':'PHE', ## 23F PHE (2Z)-2-AMINO-3-PHENYLACRYLIC ACID
99 '23S':'TRP', ## 23S TRP MODIFIED TRYPTOPHAN
100 '2BU':'ALA', ## 2BU ADE
101 '2ML':'LEU', ## 2ML LEU 2-METHYLLEUCINE
102 '2MR':'ARG', ## 2MR ARG N3, N4-DIMETHYLARGININE
103 '2MT':'PRO', ## 2MT PRO
104 '2OP':'ALA', ## 2OP (2S 2-HYDROXYPROPANAL
105 '2TY':'TYR', ## 2TY TYR
106 '32S':'TRP', ## 32S TRP MODIFIED TRYPTOPHAN
107 '32T':'TRP', ## 32T TRP MODIFIED TRYPTOPHAN
108 '3AH':'HIS', ## 3AH HIS
109 '3MD':'ASP', ## 3MD ASP 2S,3S-3-METHYLASPARTIC ACID
110 '3TY':'TYR', ## 3TY TYR MODIFIED TYROSINE
111 '4DP':'TRP', ## 4DP TRP
112 '4F3':'ALA', ## 4F3 ALA CYCLIZED
113 '4FB':'PRO', ## 4FB PRO (4S)-4-FLUORO-L-PROLINE
114 '4FW':'TRP', ## 4FW TRP 4-FLUOROTRYPTOPHANE
115 '4HT':'TRP', ## 4HT TRP 4-HYDROXYTRYPTOPHAN
116 '4IN':'TRP', ## 4IN TRP 4-AMINO-L-TRYPTOPHAN
117 '4PH':'PHE', ## 4PH PHE 4-METHYL-L-PHENYLALANINE
118 '5CS':'CYS', ## 5CS CYS
119 '6CL':'LYS', ## 6CL LYS 6-CARBOXYLYSINE
120 '6CW':'TRP', ## 6CW TRP 6-CHLORO-L-TRYPTOPHAN
121 'A0A':'ASP', ## A0A ASP ASPARTYL-FORMYL MIXED ANHYDRIDE
122 'AA4':'ALA', ## AA4 ALA 2-AMINO-5-HYDROXYPENTANOIC ACID
123 'AAR':'ARG', ## AAR ARG ARGININEAMIDE
124 'AB7':'GLU', ## AB7 GLU ALPHA-AMINOBUTYRIC ACID
125 'ABA':'ALA', ## ABA ALA ALPHA-AMINOBUTYRIC ACID
126 'ACB':'ASP', ## ACB ASP 3-METHYL-ASPARTIC ACID
127 'ACL':'ARG', ## ACL ARG DEOXY-CHLOROMETHYL-ARGININE
128 'ACY':'GLY', ## ACY GLY POST-TRANSLATIONAL MODIFICATION
129 'AEI':'THR', ## AEI THR ACYLATED THR
130 'AFA':'ASN', ## AFA ASN N-[7-METHYL-OCT-2,4-DIENOYL]ASPARAGINE
131 'AGM':'ARG', ## AGM ARG 4-METHYL-ARGININE
132 'AGT':'CYS', ## AGT CYS AGMATINE-CYSTEINE ADDUCT
133 'AHB':'ASN', ## AHB ASN BETA-HYDROXYASPARAGINE
134 'AHO':'ALA', ## AHO ALA N-ACETYL-N-HYDROXY-L-ORNITHINE
135 'AHP':'ALA', ## AHP ALA 2-AMINO-HEPTANOIC ACID
136 'AIB':'ALA', ## AIB ALA ALPHA-AMINOISOBUTYRIC ACID
137 'AKL':'ASP', ## AKL ASP 3-AMINO-5-CHLORO-4-OXOPENTANOIC ACID
138 'ALC':'ALA', ## ALC ALA 2-AMINO-3-CYCLOHEXYL-PROPIONIC ACID
139 'ALG':'ARG', ## ALG ARG GUANIDINOBUTYRYL GROUP
140 'ALM':'ALA', ## ALM ALA 1-METHYL-ALANINAL
141 'ALN':'ALA', ## ALN ALA NAPHTHALEN-2-YL-3-ALANINE
142 'ALO':'THR', ## ALO THR ALLO-THREONINE
143 'ALS':'ALA', ## ALS ALA 2-AMINO-3-OXO-4-SULFO-BUTYRIC ACID
144 'ALT':'ALA', ## ALT ALA THIOALANINE
145 'ALY':'LYS', ## ALY LYS N(6)-ACETYLLYSINE
146 'AME':'MET', ## AME MET ACETYLATED METHIONINE
147 'AP7':'ALA', ## AP7 ADE
148 'APH':'ALA', ## APH ALA P-AMIDINOPHENYL-3-ALANINE
149 'API':'LYS', ## API LYS 2,6-DIAMINOPIMELIC ACID
150 'APK':'LYS', ## APK LYS
151 'AR2':'ARG', ## AR2 ARG ARGINYL-BENZOTHIAZOLE-6-CARBOXYLIC ACID
152 'AR4':'GLU', ## AR4 GLU
153 'ARM':'ARG', ## ARM ARG DEOXY-METHYL-ARGININE
154 'ARO':'ARG', ## ARO ARG C-GAMMA-HYDROXY ARGININE
155 'ASA':'ASP', ## ASA ASP ASPARTIC ALDEHYDE
156 'ASB':'ASP', ## ASB ASP ASPARTIC ACID-4-CARBOXYETHYL ESTER
157 'ASI':'ASP', ## ASI ASP L-ISO-ASPARTATE
158 'ASK':'ASP', ## ASK ASP DEHYDROXYMETHYLASPARTIC ACID
159 'ASL':'ASP', ## ASL ASP ASPARTIC ACID-4-CARBOXYETHYL ESTER
160 'AYA':'ALA', ## AYA ALA N-ACETYLALANINE
161 'AYG':'ALA', ## AYG ALA
162 'AZK':'LYS', ## AZK LYS (2S)-2-AMINO-6-TRIAZANYLHEXAN-1-OL
163 'B2A':'ALA', ## B2A ALA ALANINE BORONIC ACID
164 'B2F':'PHE', ## B2F PHE PHENYLALANINE BORONIC ACID
165 'B2I':'ILE', ## B2I ILE ISOLEUCINE BORONIC ACID
166 'B2V':'VAL', ## B2V VAL VALINE BORONIC ACID
167 'B3A':'ALA', ## B3A ALA (3S)-3-AMINOBUTANOIC ACID
168 'B3D':'ASP', ## B3D ASP 3-AMINOPENTANEDIOIC ACID
169 'B3E':'GLU', ## B3E GLU (3S)-3-AMINOHEXANEDIOIC ACID
170 'B3K':'LYS', ## B3K LYS (3S)-3,7-DIAMINOHEPTANOIC ACID
171 'B3S':'SER', ## B3S SER (3R)-3-AMINO-4-HYDROXYBUTANOIC ACID
172 'B3X':'ASN', ## B3X ASN (3S)-3,5-DIAMINO-5-OXOPENTANOIC ACID
173 'B3Y':'TYR', ## B3Y TYR
174 'BAL':'ALA', ## BAL ALA BETA-ALANINE
175 'BBC':'CYS', ## BBC CYS
176 'BCS':'CYS', ## BCS CYS BENZYLCYSTEINE
177 'BCX':'CYS', ## BCX CYS BETA-3-CYSTEINE
178 'BFD':'ASP', ## BFD ASP ASPARTATE BERYLLIUM FLUORIDE
179 'BG1':'SER', ## BG1 SER
180 'BHD':'ASP', ## BHD ASP BETA-HYDROXYASPARTIC ACID
181 'BIF':'PHE', ## BIF PHE
182 'BLE':'LEU', ## BLE LEU LEUCINE BORONIC ACID
183 'BLY':'LYS', ## BLY LYS LYSINE BORONIC ACID
184 'BMT':'THR', ## BMT THR
185 'BNN':'ALA', ## BNN ALA ACETYL-P-AMIDINOPHENYLALANINE
186 'BOR':'ARG', ## BOR ARG
187 'BPE':'CYS', ## BPE CYS
188 'BTR':'TRP', ## BTR TRP 6-BROMO-TRYPTOPHAN
189 'BUC':'CYS', ## BUC CYS S,S-BUTYLTHIOCYSTEINE
190 'BUG':'LEU', ## BUG LEU TERT-LEUCYL AMINE
191 'C12':'ALA', ## C12 ALA
192 'C1X':'LYS', ## C1X LYS MODIFIED LYSINE
193 'C3Y':'CYS', ## C3Y CYS MODIFIED CYSTEINE
194 'C5C':'CYS', ## C5C CYS S-CYCLOPENTYL THIOCYSTEINE
195 'C6C':'CYS', ## C6C CYS S-CYCLOHEXYL THIOCYSTEINE
196 'C99':'ALA', ## C99 ALA
197 'CAB':'ALA', ## CAB ALA 4-CARBOXY-4-AMINOBUTANAL
198 'CAF':'CYS', ## CAF CYS S-DIMETHYLARSINOYL-CYSTEINE
199 'CAS':'CYS', ## CAS CYS S-(DIMETHYLARSENIC)CYSTEINE
200 'CCS':'CYS', ## CCS CYS CARBOXYMETHYLATED CYSTEINE
201 'CGU':'GLU', ## CGU GLU CARBOXYLATION OF THE CG ATOM
202 'CH6':'ALA', ## CH6 ALA
203 'CH7':'ALA', ## CH7 ALA
204 'CHG':'GLY', ## CHG GLY CYCLOHEXYL GLYCINE
205 'CHP':'GLY', ## CHP GLY 3-CHLORO-4-HYDROXYPHENYLGLYCINE
206 'CHS':'PHE', ## CHS PHE 4-AMINO-5-CYCLOHEXYL-3-HYDROXY-PENTANOIC AC
207 'CIR':'ARG', ## CIR ARG CITRULLINE
208 'CLB':'ALA', ## CLB ALA
209 'CLD':'ALA', ## CLD ALA
210 'CLE':'LEU', ## CLE LEU LEUCINE AMIDE
211 'CLG':'LYS', ## CLG LYS
212 'CLH':'LYS', ## CLH LYS
213 'CLV':'ALA', ## CLV ALA
214 'CME':'CYS', ## CME CYS MODIFIED CYSTEINE
215 'CML':'CYS', ## CML CYS
216 'CMT':'CYS', ## CMT CYS O-METHYLCYSTEINE
217 'CQR':'ALA', ## CQR ALA
218 'CR2':'ALA', ## CR2 ALA POST-TRANSLATIONAL MODIFICATION
219 'CR5':'ALA', ## CR5 ALA
220 'CR7':'ALA', ## CR7 ALA
221 'CR8':'ALA', ## CR8 ALA
222 'CRK':'ALA', ## CRK ALA
223 'CRO':'THR', ## CRO THR CYCLIZED
224 'CRQ':'TYR', ## CRQ TYR
225 'CRW':'ALA', ## CRW ALA
226 'CRX':'ALA', ## CRX ALA
227 'CS1':'CYS', ## CS1 CYS S-(2-ANILINYL-SULFANYL)-CYSTEINE
228 'CS3':'CYS', ## CS3 CYS
229 'CS4':'CYS', ## CS4 CYS
230 'CSA':'CYS', ## CSA CYS S-ACETONYLCYSTEIN
231 'CSB':'CYS', ## CSB CYS CYS BOUND TO LEAD ION
232 'CSD':'CYS', ## CSD CYS 3-SULFINOALANINE
233 'CSE':'CYS', ## CSE CYS SELENOCYSTEINE
234 'CSI':'ALA', ## CSI ALA
235 'CSO':'CYS', ## CSO CYS INE S-HYDROXYCYSTEINE
236 'CSR':'CYS', ## CSR CYS S-ARSONOCYSTEINE
237 'CSS':'CYS', ## CSS CYS 1,3-THIAZOLE-4-CARBOXYLIC ACID
238 'CSU':'CYS', ## CSU CYS CYSTEINE-S-SULFONIC ACID
239 'CSW':'CYS', ## CSW CYS CYSTEINE-S-DIOXIDE
240 'CSX':'CYS', ## CSX CYS OXOCYSTEINE
241 'CSY':'ALA', ## CSY ALA MODIFIED TYROSINE COMPLEX
242 'CSZ':'CYS', ## CSZ CYS S-SELANYL CYSTEINE
243 'CTH':'THR', ## CTH THR 4-CHLOROTHREONINE
244 'CWR':'ALA', ## CWR ALA
245 'CXM':'MET', ## CXM MET N-CARBOXYMETHIONINE
246 'CY0':'CYS', ## CY0 CYS MODIFIED CYSTEINE
247 'CY1':'CYS', ## CY1 CYS ACETAMIDOMETHYLCYSTEINE
248 'CY3':'CYS', ## CY3 CYS 2-AMINO-3-MERCAPTO-PROPIONAMIDE
249 'CY4':'CYS', ## CY4 CYS S-BUTYRYL-CYSTEIN
250 'CY7':'CYS', ## CY7 CYS MODIFIED CYSTEINE
251 'CYD':'CYS', ## CYD CYS
252 'CYF':'CYS', ## CYF CYS FLUORESCEIN LABELLED CYS380 (P14)
253 'CYG':'CYS', ## CYG CYS
254 'CYJ':'LYS', ## CYJ LYS MODIFIED LYSINE
255 'CYQ':'CYS', ## CYQ CYS
256 'CYR':'CYS', ## CYR CYS
257 'CZ2':'CYS', ## CZ2 CYS S-(DIHYDROXYARSINO)CYSTEINE
258 'CZZ':'CYS', ## CZZ CYS THIARSAHYDROXY-CYSTEINE
259 'DA2':'ARG', ## DA2 ARG MODIFIED ARGININE
260 'DAB':'ALA', ## DAB ALA 2,4-DIAMINOBUTYRIC ACID
261 'DAH':'PHE', ## DAH PHE 3,4-DIHYDROXYDAHNYLALANINE
262 'DAL':'ALA', ## DAL ALA D-ALANINE
263 'DAM':'ALA', ## DAM ALA N-METHYL-ALPHA-BETA-DEHYDROALANINE
264 'DAR':'ARG', ## DAR ARG D-ARGININE
265 'DAS':'ASP', ## DAS ASP D-ASPARTIC ACID
266 'DBU':'ALA', ## DBU ALA (2E)-2-AMINOBUT-2-ENOIC ACID
267 'DBY':'TYR', ## DBY TYR 3,5 DIBROMOTYROSINE
268 'DBZ':'ALA', ## DBZ ALA 3-(BENZOYLAMINO)-L-ALANINE
269 'DCL':'LEU', ## DCL LEU 2-AMINO-4-METHYL-PENTANYL GROUP
270 'DCY':'CYS', ## DCY CYS D-CYSTEINE
271 'DDE':'HIS', ## DDE HIS
272 'DGL':'GLU', ## DGL GLU D-GLU
273 'DGN':'GLN', ## DGN GLN D-GLUTAMINE
274 'DHA':'ALA', ## DHA ALA 2-AMINO-ACRYLIC ACID
275 'DHI':'HIS', ## DHI HIS D-HISTIDINE
276 'DHL':'SER', ## DHL SER POST-TRANSLATIONAL MODIFICATION
277 'DIL':'ILE', ## DIL ILE D-ISOLEUCINE
278 'DIV':'VAL', ## DIV VAL D-ISOVALINE
279 'DLE':'LEU', ## DLE LEU D-LEUCINE
280 'DLS':'LYS', ## DLS LYS DI-ACETYL-LYSINE
281 'DLY':'LYS', ## DLY LYS D-LYSINE
282 'DMH':'ASN', ## DMH ASN N4,N4-DIMETHYL-ASPARAGINE
283 'DMK':'ASP', ## DMK ASP DIMETHYL ASPARTIC ACID
284 'DNE':'LEU', ## DNE LEU D-NORLEUCINE
285 'DNG':'LEU', ## DNG LEU N-FORMYL-D-NORLEUCINE
286 'DNL':'LYS', ## DNL LYS 6-AMINO-HEXANAL
287 'DNM':'LEU', ## DNM LEU D-N-METHYL NORLEUCINE
288 'DPH':'PHE', ## DPH PHE DEAMINO-METHYL-PHENYLALANINE
289 'DPL':'PRO', ## DPL PRO 4-OXOPROLINE
290 'DPN':'PHE', ## DPN PHE D-CONFIGURATION
291 'DPP':'ALA', ## DPP ALA DIAMMINOPROPANOIC ACID
292 'DPQ':'TYR', ## DPQ TYR TYROSINE DERIVATIVE
293 'DPR':'PRO', ## DPR PRO D-PROLINE
294 'DSE':'SER', ## DSE SER D-SERINE N-METHYLATED
295 'DSG':'ASN', ## DSG ASN D-ASPARAGINE
296 'DSN':'SER', ## DSN SER D-SERINE
297 'DTH':'THR', ## DTH THR D-THREONINE
298 'DTR':'TRP', ## DTR TRP D-TRYPTOPHAN
299 'DTY':'TYR', ## DTY TYR D-TYROSINE
300 'DVA':'VAL', ## DVA VAL D-VALINE
301 'DYG':'ALA', ## DYG ALA
302 'DYS':'CYS', ## DYS CYS
303 'EFC':'CYS', ## EFC CYS S,S-(2-FLUOROETHYL)THIOCYSTEINE
304 'ESB':'TYR', ## ESB TYR
305 'ESC':'MET', ## ESC MET 2-AMINO-4-ETHYL SULFANYL BUTYRIC ACID
306 'FCL':'PHE', ## FCL PHE 3-CHLORO-L-PHENYLALANINE
307 'FGL':'ALA', ## FGL ALA 2-AMINOPROPANEDIOIC ACID
308 'FGP':'SER', ## FGP SER
309 'FHL':'LYS', ## FHL LYS MODIFIED LYSINE
310 'FLE':'LEU', ## FLE LEU FUROYL-LEUCINE
311 'FLT':'TYR', ## FLT TYR FLUOROMALONYL TYROSINE
312 'FME':'MET', ## FME MET FORMYL-METHIONINE
313 'FOE':'CYS', ## FOE CYS
314 'FOG':'PHE', ## FOG PHE PHENYLALANINOYL-[1-HYDROXY]-2-PROPYLENE
315 'FOR':'MET', ## FOR MET
316 'FRF':'PHE', ## FRF PHE PHE FOLLOWED BY REDUCED PHE
317 'FTR':'TRP', ## FTR TRP FLUOROTRYPTOPHANE
318 'FTY':'TYR', ## FTY TYR DEOXY-DIFLUOROMETHELENE-PHOSPHOTYROSINE
319 'GHG':'GLN', ## GHG GLN GAMMA-HYDROXY-GLUTAMINE
320 'GHP':'GLY', ## GHP GLY 4-HYDROXYPHENYLGLYCINE
321 'GL3':'GLY', ## GL3 GLY POST-TRANSLATIONAL MODIFICATION
322 'GLH':'GLN', ## GLH GLN
323 'GLZ':'GLY', ## GLZ GLY AMINO-ACETALDEHYDE
324 'GMA':'GLU', ## GMA GLU 1-AMIDO-GLUTAMIC ACID
325 'GMU':'ALA', ## GMU 5MU
326 'GPL':'LYS', ## GPL LYS LYSINE GUANOSINE-5'-MONOPHOSPHATE
327 'GT9':'CYS', ## GT9 CYS SG ALKYLATED
328 'GVL':'SER', ## GVL SER SERINE MODIFED WITH PHOSPHOPANTETHEINE
329 'GYC':'CYS', ## GYC CYS
330 'GYS':'GLY', ## GYS GLY
331 'H5M':'PRO', ## H5M PRO TRANS-3-HYDROXY-5-METHYLPROLINE
332 'HHK':'ALA', ## HHK ALA (2S)-2,8-DIAMINOOCTANOIC ACID
333 'HIA':'HIS', ## HIA HIS L-HISTIDINE AMIDE
334 'HIC':'HIS', ## HIC HIS 4-METHYL-HISTIDINE
335 'HIP':'HIS', ## HIP HIS ND1-PHOSPHONOHISTIDINE
336 'HIQ':'HIS', ## HIQ HIS MODIFIED HISTIDINE
337 'HLU':'LEU', ## HLU LEU BETA-HYDROXYLEUCINE
338 'HMF':'ALA', ## HMF ALA 2-AMINO-4-PHENYL-BUTYRIC ACID
339 'HMR':'ARG', ## HMR ARG BETA-HOMOARGININE
340 'HPE':'PHE', ## HPE PHE HOMOPHENYLALANINE
341 'HPH':'PHE', ## HPH PHE PHENYLALANINOL GROUP
342 'HPQ':'PHE', ## HPQ PHE HOMOPHENYLALANINYLMETHANE
343 'HRG':'ARG', ## HRG ARG L-HOMOARGININE
344 'HSE':'SER', ## HSE SER L-HOMOSERINE
345 'HSL':'SER', ## HSL SER HOMOSERINE LACTONE
346 'HSO':'HIS', ## HSO HIS HISTIDINOL
347 'HTI':'CYS', ## HTI CYS
348 'HTR':'TRP', ## HTR TRP BETA-HYDROXYTRYPTOPHANE
349 'HY3':'PRO', ## HY3 PRO 3-HYDROXYPROLINE
350 'HYP':'PRO', ## HYP PRO 4-HYDROXYPROLINE
351 'IAM':'ALA', ## IAM ALA 4-[(ISOPROPYLAMINO)METHYL]PHENYLALANINE
352 'IAS':'ASP', ## IAS ASP ASPARTYL GROUP
353 'IGL':'ALA', ## IGL ALA ALPHA-AMINO-2-INDANACETIC ACID
354 'IIL':'ILE', ## IIL ILE ISO-ISOLEUCINE
355 'ILG':'GLU', ## ILG GLU GLU LINKED TO NEXT RESIDUE VIA CG
356 'ILX':'ILE', ## ILX ILE 4,5-DIHYDROXYISOLEUCINE
357 'IML':'ILE', ## IML ILE N-METHYLATED
358 'IPG':'GLY', ## IPG GLY N-ISOPROPYL GLYCINE
359 'IT1':'LYS', ## IT1 LYS
360 'IYR':'TYR', ## IYR TYR 3-IODO-TYROSINE
361 'KCX':'LYS', ## KCX LYS CARBAMOYLATED LYSINE
362 'KGC':'LYS', ## KGC LYS
363 'KOR':'CYS', ## KOR CYS MODIFIED CYSTEINE
364 'KST':'LYS', ## KST LYS N~6~-(5-CARBOXY-3-THIENYL)-L-LYSINE
365 'KYN':'ALA', ## KYN ALA KYNURENINE
366 'LA2':'LYS', ## LA2 LYS
367 'LAL':'ALA', ## LAL ALA N,N-DIMETHYL-L-ALANINE
368 'LCK':'LYS', ## LCK LYS
369 'LCX':'LYS', ## LCX LYS CARBAMYLATED LYSINE
370 'LDH':'LYS', ## LDH LYS N~6~-ETHYL-L-LYSINE
371 'LED':'LEU', ## LED LEU POST-TRANSLATIONAL MODIFICATION
372 'LEF':'LEU', ## LEF LEU 2-5-FLUOROLEUCINE
373 'LET':'LYS', ## LET LYS ODIFIED LYSINE
374 'LLP':'LYS', ## LLP LYS
375 'LLY':'LYS', ## LLY LYS NZ-(DICARBOXYMETHYL)LYSINE
376 'LME':'GLU', ## LME GLU (3R)-3-METHYL-L-GLUTAMIC ACID
377 'LNT':'LEU', ## LNT LEU
378 'LPD':'PRO', ## LPD PRO L-PROLINAMIDE
379 'LSO':'LYS', ## LSO LYS MODIFIED LYSINE
380 'LYM':'LYS', ## LYM LYS DEOXY-METHYL-LYSINE
381 'LYN':'LYS', ## LYN LYS 2,6-DIAMINO-HEXANOIC ACID AMIDE
382 'LYP':'LYS', ## LYP LYS N~6~-METHYL-N~6~-PROPYL-L-LYSINE
383 'LYR':'LYS', ## LYR LYS MODIFIED LYSINE
384 'LYX':'LYS', ## LYX LYS N''-(2-COENZYME A)-PROPANOYL-LYSINE
385 'LYZ':'LYS', ## LYZ LYS 5-HYDROXYLYSINE
386 'M0H':'CYS', ## M0H CYS S-(HYDROXYMETHYL)-L-CYSTEINE
387 'M2L':'LYS', ## M2L LYS
388 'M3L':'LYS', ## M3L LYS N-TRIMETHYLLYSINE
389 'MAA':'ALA', ## MAA ALA N-METHYLALANINE
390 'MAI':'ARG', ## MAI ARG DEOXO-METHYLARGININE
391 'MBQ':'TYR', ## MBQ TYR
392 'MC1':'SER', ## MC1 SER METHICILLIN ACYL-SERINE
393 'MCL':'LYS', ## MCL LYS NZ-(1-CARBOXYETHYL)-LYSINE
394 'MCS':'CYS', ## MCS CYS MALONYLCYSTEINE
395 'MDO':'ALA', ## MDO ALA
396 'MEA':'PHE', ## MEA PHE N-METHYLPHENYLALANINE
397 'MEG':'GLU', ## MEG GLU (2S,3R)-3-METHYL-GLUTAMIC ACID
398 'MEN':'ASN', ## MEN ASN GAMMA METHYL ASPARAGINE
399 'MEU':'GLY', ## MEU GLY O-METHYL-GLYCINE
400 'MFC':'ALA', ## MFC ALA CYCLIZED
401 'MGG':'ARG', ## MGG ARG MODIFIED D-ARGININE
402 'MGN':'GLN', ## MGN GLN 2-METHYL-GLUTAMINE
403 'MHL':'LEU', ## MHL LEU N-METHYLATED, HYDROXY
404 'MHO':'MET', ## MHO MET POST-TRANSLATIONAL MODIFICATION
405 'MHS':'HIS', ## MHS HIS 1-N-METHYLHISTIDINE
406 'MIS':'SER', ## MIS SER MODIFIED SERINE
407 'MLE':'LEU', ## MLE LEU N-METHYLATED
408 'MLL':'LEU', ## MLL LEU METHYL L-LEUCINATE
409 'MLY':'LYS', ## MLY LYS METHYLATED LYSINE
410 'MLZ':'LYS', ## MLZ LYS N-METHYL-LYSINE
411 'MME':'MET', ## MME MET N-METHYL METHIONINE
412 'MNL':'LEU', ## MNL LEU 4,N-DIMETHYLNORLEUCINE
413 'MNV':'VAL', ## MNV VAL N-METHYL-C-AMINO VALINE
414 'MPQ':'GLY', ## MPQ GLY N-METHYL-ALPHA-PHENYL-GLYCINE
415 'MSA':'GLY', ## MSA GLY (2-S-METHYL) SARCOSINE
416 'MSE':'MET', ## MSE MET ELENOMETHIONINE
417 'MSO':'MET', ## MSO MET METHIONINE SULFOXIDE
418 'MTY':'PHE', ## MTY PHE 3-HYDROXYPHENYLALANINE
419 'MVA':'VAL', ## MVA VAL N-METHYLATED
420 'N10':'SER', ## N10 SER O-[(HEXYLAMINO)CARBONYL]-L-SERINE
421 'NAL':'ALA', ## NAL ALA BETA-(2-NAPHTHYL)-ALANINE
422 'NAM':'ALA', ## NAM ALA NAM NAPTHYLAMINOALANINE
423 'NBQ':'TYR', ## NBQ TYR
424 'NC1':'SER', ## NC1 SER NITROCEFIN ACYL-SERINE
425 'NCB':'ALA', ## NCB ALA CHEMICAL MODIFICATION
426 'NEP':'HIS', ## NEP HIS N1-PHOSPHONOHISTIDINE
427 'NFA':'PHE', ## NFA PHE MODIFIED PHENYLALANINE
428 'NIY':'TYR', ## NIY TYR META-NITRO-TYROSINE
429 'NLE':'LEU', ## NLE LEU NORLEUCINE
430 'NLN':'LEU', ## NLN LEU NORLEUCINE AMIDE
431 'NLO':'LEU', ## NLO LEU O-METHYL-L-NORLEUCINE
432 'NMC':'GLY', ## NMC GLY N-CYCLOPROPYLMETHYL GLYCINE
433 'NMM':'ARG', ## NMM ARG MODIFIED ARGININE
434 'NPH':'CYS', ## NPH CYS
435 'NRQ':'ALA', ## NRQ ALA
436 'NVA':'VAL', ## NVA VAL NORVALINE
437 'NYC':'ALA', ## NYC ALA
438 'NYS':'CYS', ## NYS CYS
439 'NZH':'HIS', ## NZH HIS
440 'OAS':'SER', ## OAS SER O-ACETYLSERINE
441 'OBS':'LYS', ## OBS LYS MODIFIED LYSINE
442 'OCS':'CYS', ## OCS CYS CYSTEINE SULFONIC ACID
443 'OCY':'CYS', ## OCY CYS HYDROXYETHYLCYSTEINE
444 'OHI':'HIS', ## OHI HIS 3-(2-OXO-2H-IMIDAZOL-4-YL)-L-ALANINE
445 'OHS':'ASP', ## OHS ASP O-(CARBOXYSULFANYL)-4-OXO-L-HOMOSERINE
446 'OLT':'THR', ## OLT THR O-METHYL-L-THREONINE
447 'OMT':'MET', ## OMT MET METHIONINE SULFONE
448 'OPR':'ARG', ## OPR ARG C-(3-OXOPROPYL)ARGININE
449 'ORN':'ALA', ## ORN ALA ORNITHINE
450 'ORQ':'ARG', ## ORQ ARG N~5~-ACETYL-L-ORNITHINE
451 'OSE':'SER', ## OSE SER O-SULFO-L-SERINE
452 'OTY':'TYR', ## OTY TYR
453 'OXX':'ASP', ## OXX ASP OXALYL-ASPARTYL ANHYDRIDE
454 'P1L':'CYS', ## P1L CYS S-PALMITOYL CYSTEINE
455 'P2Y':'PRO', ## P2Y PRO (2S)-PYRROLIDIN-2-YLMETHYLAMINE
456 'PAQ':'TYR', ## PAQ TYR SEE REMARK 999
457 'PAT':'TRP', ## PAT TRP ALPHA-PHOSPHONO-TRYPTOPHAN
458 'PBB':'CYS', ## PBB CYS S-(4-BROMOBENZYL)CYSTEINE
459 'PBF':'PHE', ## PBF PHE PARA-(BENZOYL)-PHENYLALANINE
460 'PCA':'PRO', ## PCA PRO 5-OXOPROLINE
461 'PCS':'PHE', ## PCS PHE PHENYLALANYLMETHYLCHLORIDE
462 'PEC':'CYS', ## PEC CYS S,S-PENTYLTHIOCYSTEINE
463 'PF5':'PHE', ## PF5 PHE 2,3,4,5,6-PENTAFLUORO-L-PHENYLALANINE
464 'PFF':'PHE', ## PFF PHE 4-FLUORO-L-PHENYLALANINE
465 'PG1':'SER', ## PG1 SER BENZYLPENICILLOYL-ACYLATED SERINE
466 'PG9':'GLY', ## PG9 GLY D-PHENYLGLYCINE
467 'PHA':'PHE', ## PHA PHE PHENYLALANINAL
468 'PHD':'ASP', ## PHD ASP 2-AMINO-4-OXO-4-PHOSPHONOOXY-BUTYRIC ACID
469 'PHI':'PHE', ## PHI PHE IODO-PHENYLALANINE
470 'PHL':'PHE', ## PHL PHE L-PHENYLALANINOL
471 'PHM':'PHE', ## PHM PHE PHENYLALANYLMETHANE
472 'PIA':'ALA', ## PIA ALA FUSION OF ALA 65, TYR 66, GLY 67
473 'PLE':'LEU', ## PLE LEU LEUCINE PHOSPHINIC ACID
474 'PM3':'PHE', ## PM3 PHE
475 'POM':'PRO', ## POM PRO CIS-5-METHYL-4-OXOPROLINE
476 'PPH':'LEU', ## PPH LEU PHENYLALANINE PHOSPHINIC ACID
477 'PPN':'PHE', ## PPN PHE THE LIGAND IS A PARA-NITRO-PHENYLALANINE
478 'PR3':'CYS', ## PR3 CYS INE DTT-CYSTEINE
479 'PRQ':'PHE', ## PRQ PHE PHENYLALANINE
480 'PRR':'ALA', ## PRR ALA 3-(METHYL-PYRIDINIUM)ALANINE
481 'PRS':'PRO', ## PRS PRO THIOPROLINE
482 'PSA':'PHE', ## PSA PHE
483 'PSH':'HIS', ## PSH HIS 1-THIOPHOSPHONO-L-HISTIDINE
484 'PTH':'TYR', ## PTH TYR METHYLENE-HYDROXY-PHOSPHOTYROSINE
485 'PTM':'TYR', ## PTM TYR ALPHA-METHYL-O-PHOSPHOTYROSINE
486 'PTR':'TYR', ## PTR TYR O-PHOSPHOTYROSINE
487 'PYA':'ALA', ## PYA ALA 3-(1,10-PHENANTHROL-2-YL)-L-ALANINE
488 'PYC':'ALA', ## PYC ALA PYRROLE-2-CARBOXYLATE
489 'PYR':'SER', ## PYR SER CHEMICALLY MODIFIED
490 'PYT':'ALA', ## PYT ALA MODIFIED ALANINE
491 'PYX':'CYS', ## PYX CYS S-[S-THIOPYRIDOXAMINYL]CYSTEINE
492 'R1A':'CYS', ## R1A CYS
493 'R1B':'CYS', ## R1B CYS
494 'R1F':'CYS', ## R1F CYS
495 'R7A':'CYS', ## R7A CYS
496 'RC7':'ALA', ## RC7 ALA
497 'RCY':'CYS', ## RCY CYS
498 'S1H':'SER', ## S1H SER 1-HEXADECANOSULFONYL-O-L-SERINE
499 'SAC':'SER', ## SAC SER N-ACETYL-SERINE
500 'SAH':'CYS', ## SAH CYS S-ADENOSYL-L-HOMOCYSTEINE
501 'SAR':'GLY', ## SAR GLY SARCOSINE
502 'SBD':'SER', ## SBD SER
503 'SBG':'SER', ## SBG SER MODIFIED SERINE
504 'SBL':'SER', ## SBL SER
505 'SC2':'CYS', ## SC2 CYS N-ACETYL-L-CYSTEINE
506 'SCH':'CYS', ## SCH CYS S-METHYL THIOCYSTEINE GROUP
507 'SCS':'CYS', ## SCS CYS MODIFIED CYSTEINE
508 'SCY':'CYS', ## SCY CYS CETYLATED CYSTEINE
509 'SDP':'SER', ## SDP SER
510 'SEB':'SER', ## SEB SER O-BENZYLSULFONYL-SERINE
511 'SEC':'ALA', ## SEC ALA 2-AMINO-3-SELENINO-PROPIONIC ACID
512 'SEL':'SER', ## SEL SER 2-AMINO-1,3-PROPANEDIOL
513 'SEP':'SER', ## SEP SER E PHOSPHOSERINE
514 'SET':'SER', ## SET SER AMINOSERINE
515 'SGB':'SER', ## SGB SER MODIFIED SERINE
516 'SGR':'SER', ## SGR SER MODIFIED SERINE
517 'SHC':'CYS', ## SHC CYS S-HEXYLCYSTEINE
518 'SHP':'GLY', ## SHP GLY (4-HYDROXYMALTOSEPHENYL)GLYCINE
519 'SIC':'ALA', ## SIC ALA
520 'SLZ':'LYS', ## SLZ LYS L-THIALYSINE
521 'SMC':'CYS', ## SMC CYS POST-TRANSLATIONAL MODIFICATION
522 'SME':'MET', ## SME MET METHIONINE SULFOXIDE
523 'SMF':'PHE', ## SMF PHE 4-SULFOMETHYL-L-PHENYLALANINE
524 'SNC':'CYS', ## SNC CYS S-NITROSO CYSTEINE
525 'SNN':'ASP', ## SNN ASP POST-TRANSLATIONAL MODIFICATION
526 'SOC':'CYS', ## SOC CYS DIOXYSELENOCYSTEINE
527 'SOY':'SER', ## SOY SER OXACILLOYL-ACYLATED SERINE
528 'SUI':'ALA', ## SUI ALA
529 'SUN':'SER', ## SUN SER TABUN CONJUGATED SERINE
530 'SVA':'SER', ## SVA SER SERINE VANADATE
531 'SVV':'SER', ## SVV SER MODIFIED SERINE
532 'SVX':'SER', ## SVX SER MODIFIED SERINE
533 'SVY':'SER', ## SVY SER MODIFIED SERINE
534 'SVZ':'SER', ## SVZ SER MODIFIED SERINE
535 'SXE':'SER', ## SXE SER MODIFIED SERINE
536 'TBG':'GLY', ## TBG GLY T-BUTYL GLYCINE
537 'TBM':'THR', ## TBM THR
538 'TCQ':'TYR', ## TCQ TYR MODIFIED TYROSINE
539 'TEE':'CYS', ## TEE CYS POST-TRANSLATIONAL MODIFICATION
540 'TH5':'THR', ## TH5 THR O-ACETYL-L-THREONINE
541 'THC':'THR', ## THC THR N-METHYLCARBONYLTHREONINE
542 'TIH':'ALA', ## TIH ALA BETA(2-THIENYL)ALANINE
543 'TMD':'THR', ## TMD THR N-METHYLATED, EPSILON C ALKYLATED
544 'TNB':'CYS', ## TNB CYS S-(2,3,6-TRINITROPHENYL)CYSTEINE
545 'TOX':'TRP', ## TOX TRP
546 'TPL':'TRP', ## TPL TRP TRYTOPHANOL
547 'TPO':'THR', ## TPO THR HOSPHOTHREONINE
548 'TPQ':'ALA', ## TPQ ALA 2,4,5-TRIHYDROXYPHENYLALANINE
549 'TQQ':'TRP', ## TQQ TRP
550 'TRF':'TRP', ## TRF TRP N1-FORMYL-TRYPTOPHAN
551 'TRN':'TRP', ## TRN TRP AZA-TRYPTOPHAN
552 'TRO':'TRP', ## TRO TRP 2-HYDROXY-TRYPTOPHAN
553 'TRQ':'TRP', ## TRQ TRP
554 'TRW':'TRP', ## TRW TRP
555 'TRX':'TRP', ## TRX TRP 6-HYDROXYTRYPTOPHAN
556 'TTQ':'TRP', ## TTQ TRP 6-AMINO-7-HYDROXY-L-TRYPTOPHAN
557 'TTS':'TYR', ## TTS TYR
558 'TY2':'TYR', ## TY2 TYR 3-AMINO-L-TYROSINE
559 'TY3':'TYR', ## TY3 TYR 3-HYDROXY-L-TYROSINE
560 'TYB':'TYR', ## TYB TYR TYROSINAL
561 'TYC':'TYR', ## TYC TYR L-TYROSINAMIDE
562 'TYI':'TYR', ## TYI TYR 3,5-DIIODOTYROSINE
563 'TYN':'TYR', ## TYN TYR ADDUCT AT HYDROXY GROUP
564 'TYO':'TYR', ## TYO TYR
565 'TYQ':'TYR', ## TYQ TYR AMINOQUINOL FORM OF TOPA QUINONONE
566 'TYS':'TYR', ## TYS TYR INE SULPHONATED TYROSINE
567 'TYT':'TYR', ## TYT TYR
568 'TYX':'CYS', ## TYX CYS S-(2-ANILINO-2-OXOETHYL)-L-CYSTEINE
569 'TYY':'TYR', ## TYY TYR IMINOQUINONE FORM OF TOPA QUINONONE
570 'TYZ':'ARG', ## TYZ ARG PARA ACETAMIDO BENZOIC ACID
571 'UMA':'ALA', ## UMA ALA
572 'VAD':'VAL', ## VAD VAL DEAMINOHYDROXYVALINE
573 'VAF':'VAL', ## VAF VAL METHYLVALINE
574 'VDL':'VAL', ## VDL VAL (2R,3R)-2,3-DIAMINOBUTANOIC ACID
575 'VLL':'VAL', ## VLL VAL (2S)-2,3-DIAMINOBUTANOIC ACID
576 'VME':'VAL', ## VME VAL O- METHYLVALINE
577 'X9Q':'ALA', ## X9Q ALA
578 'XX1':'LYS', ## XX1 LYS N~6~-7H-PURIN-6-YL-L-LYSINE
579 'XXY':'ALA', ## XXY ALA
580 'XYG':'ALA', ## XYG ALA
581 'YCM':'CYS', ## YCM CYS S-(2-AMINO-2-OXOETHYL)-L-CYSTEINE
582 'YOF':'TYR' } ## YOF TYR 3-FLUOROTYROSINE