-79 |
5' dephospho |
-58 |
Desmosine (from Lysine) |
-48 |
decomposed carboxymethylated Methionine |
-44 |
Decarboxylation of gamma carboxy Glutamate |
-43 |
Gamma-glutamyl semialdehyde (from arginine) |
-42 |
Ornithine (from Arginine) |
-34 |
Lysinoalanine (from Cysteine) |
-34 |
Lanthionine (from Cysteine) |
-34 |
Dehydroalanine (from Cysteine) |
-30 |
Homoserine formed from Met by CNBr treatment |
-27 |
Oxidation of arginine (to glutamic acid) |
-18 |
Formylglycine (from cysteine) |
-18 |
Pyroglutamic Acid formed from Glutamic Acid |
-18 |
Dehydration (-H2O) |
-18 |
S-gamma-Glutamyl (crosslinked to Cysteine) |
-18 |
O-gamma-Glutamyl- (Crosslink to Serine) |
-18 |
Serine to Dehydroalanine |
-18 |
Alaninohistidine (Serine crosslinked to theta or pi carbon of Histidine) |
-18 |
Misincorporation of Norleucine for Methionine |
-18 |
Succinimide formation from aspartic acid |
-17 |
Pyroglutamic Acid formed from Gln |
-17 |
N-pyrrolidone carboxyl (N terminus) |
-17 |
N alpha -(gamma-Glutamyl)-lysine |
-17 |
N-(beta-Aspartyl)-Lysine (Crosslink) |
-17 |
Succinimide formation from asparagine |
-17 |
S-carbamoylmethylcysteine cyclization (N-terminus) |
-16 |
Pyruvoyl- (Serine) |
-5 |
Crosslink between Arg and His sidechains |
-4 |
3,3',5,5'-TerTyr (Crosslink) |
-2 |
Formylglycine (from serine) |
-2 |
Disulphide bond formation (Cystine) |
-2 |
S-(2-Histidyl)- (Crosslinked to Cysteine) |
-2 |
S-(3-Tyr) (Crosslinked to Cysteine) |
-2 |
3,3'-BiTyr (Crosslink) |
-2 |
IsodiTyr (Crosslink) |
-1 |
Allysine (from Lysine) |
-1 |
Amide formation (C terminus) |
-1 |
Oxidation of lysine (to aminoadipic semialdehyde) |
1 |
Deamidation of Asparagine and Glutamine to Aspartate and Glutamate |
1 |
Citruline (from Arginine) |
2 |
Cysteine x2, reduction of Cystine (Cys-Cys) |
2 |
Reduction of indole double bond of Trp |
4 |
Oxidation of Trp to kynurenine |
12 |
Lysine epsilon amino to imine |
12 |
Cysteine (N-term) formaldehyde adduct (Cys to Thioproline conversion) |
12 |
Formaldehyde adduct of Trp |
13 |
Syndesine (from Lysine) |
13 |
CM-Cys vs PAM-Cys |
14 |
Methylation (N terminus, N epsilon of Lysine, O of Serine, Threonine or C terminus, N of Asparagine) |
14 |
CAM-Cys vs PAM-Cys |
14 |
Methylation (methyl esterification of Asp and Glu side chains) |
15 |
Delta-Hydroxy-allysine (from Lysine) |
15 |
Oxidation of lysine (to aminoadipic acid) |
16 |
Hydroxylation (of delta C of Lysine, beta C of Tryptophan, C3 or C4 of Proline, beta C of Aspartate) |
16 |
Oxidation of Methionine (to Sulphoxide) |
16 |
3,4-Dihydroxy-Phenylalanine (from Tyrosine) (DOPA) |
16 |
Oxohistidine (from histidine) |
16 |
Sulfenic Acid (from Cysteine) |
16 |
Oxidation of proline (to gamma-glutamyl semialdehyde) |
22 |
Sodium |
28 |
Ethyl |
28 |
N,N dimethylation (of Arginine or Lysine) |
28 |
2,4-BisTrp-6,7-dione (from Tryptophan) |
28 |
Formylation (CHO) |
30 |
6,7 Dione (from Tryptophan) |
32 |
3,4,6-Trihydroxy-Phenylalanine (from Tyrosine) (TOPA) |
32 |
3,4-Dihydroxylation (of Proline) |
32 |
Oxidation of Methionine (to Sulphone) |
32 |
Oxidation of proline (to glutamic acid) |
32 |
Double oxidation of Trp |
32 |
Trisulfide bond (additional sulfur in disulfide bond) |
34 |
3-Chlorination (of Tyrosine with 35Cl) |
36 |
3-Chlorination (of Tyrosine with 37Cl) |
38 |
Potassium |
42 |
Acetylation (N terminus, N epsilon of Lysine, O of Serine) (Ac) |
42 |
N-Trimethylation (of Lysine) |
43 |
Carbamylation |
44 |
disodium |
45 |
Nitro (NO2) |
46 |
beta-Methylthio-aspartic acid |
48 |
Cysteic acid, oxidation of cysteine |
51 |
Piperidine adduct to C-terminal Cys |
56 |
t-butyl ester(OtBu) and t-butyl (tBu) |
57 |
Glycyl (-G-,-Gly-) |
57 |
Carboxamidomethyl (on Cysteine and other residues) |
58 |
Carboxymethyl (on Cysteine and other residues) |
60 |
sodium + potassium |
64 |
Selenocysteine (from Serine) |
67 |
Asp transamidation with piperidine |
68 |
3,5-Dichlorination (of Tyrosine with 35Cl) |
69 |
Dehydroalanine (Dha) |
70 |
3,5-Dichlorination (of Tyrosine with mixture of 35Cl and 37Cl)) |
70 |
Pyruvate |
71 |
Sarcosyl |
71 |
Alanyl (-A-, -Ala-) |
71 |
Acetamidomethyl (Acm) |
71 |
Propionamide or Acrylamide adduct |
72 |
3,5-Dichlorination (of Tyrosine with 37Cl) |
74 |
S-(sn-1-Glyceryl) (on Cysteine) |
74 |
Glycerol Ester (on Glutamic acid side chain) |
75 |
Glycine (G, Gly) |
76 |
Phenyl ester (OPh) (on acidic) |
76 |
Beta mercaptoethanol adduct |
78 |
3-Bromination (of Tyrosine with 79Br) |
78 |
3-o-bromination of Phe with 79Br |
80 |
L-o-bromination of Phe with 81Br |
80 |
Sulphonation (SO3H) (of PMC group) |
80 |
Sulphation (of O of Tyrosine) |
80 |
Phosphorylation (O of Serine, Threonine, Tyrosine and Aspartate, N epsilon of Lysine) |
80 |
3-Bromination (of Tyrosine with 81Br) |
82 |
Cyclohexyl ester (OcHex) |
83 |
Dehydroamino butyric acid (Dhb) |
83 |
Homoseryl lactone |
85 |
2-Aminobutyric acid (Abu) |
85 |
2-Aminoisobutyric acid (Aib) |
85 |
Gamma Aminobutyryl |
86 |
t-butyloxymethyl (Bum) |
86 |
Diaminopropionyl |
87 |
N-(4-NH2-2-OH-butyl)- (of Lysine) (Hypusine) |
87 |
Seryl (-S-, -Ser-) |
88 |
t-butylsulfenyl (StBu) |
89 |
Alanine (A, Ala) |
89 |
Sarcosine (Sar) |
90 |
Anisyl |
90 |
Benzyl (Bzl) and benzly ester (OBzl) |
93 |
1,2-ethanedithiol (EDT) |
95 |
Dehydroprolyl |
96 |
Trifluoroacetyl (TFA) |
97 |
N-hydroxysuccinimide (ONSu, OSu) |
97 |
Prolyl (-P-, -Pro-) |
98 |
Cysteic acid x2, oxidation of cystine |
98 |
Tetramethylguanidinium termination by-product on amine |
98 |
Phosphate/sulphate adduct of proteins |
99 |
Valyl (-V-, -Val-) |
99 |
Isovalyl (-I-,-Iva-) |
100 |
t-Butyloxycarbonyl (tBoc) |
101 |
Threoyl (-T-, -Thr-) |
101 |
Homoseryl (-Hse-) |
103 |
Cystyl (-C-, -Cys-) |
104 |
4-Methylbenzyl (Meb) |
104 |
Benzoyl (Bz) |
105 |
Serine (S, Ser) |
105 |
Pyridylethylation of cysteine |
106 |
HMP (hydroxymethylphenyl) linker |
106 |
Thioanisyl |
106 |
Thiocresyl |
111 |
2-Piperidinecarboxylic acid (Pip) |
111 |
Pyroglutamyl |
113 |
Hydroxyprolyl (-Hyp-) |
113 |
Isoleucyl (-I-, -Ile-) |
113 |
Leucyl (-L-, -Leu-) |
113 |
Norleucyl (-Nle-) |
114 |
Asparagyl (-N-, -Asn-) |
114 |
t-amyloxycarbonyl (Aoc) |
114 |
Ornithyl (-Orn-) |
115 |
Proline (P, Pro) |
115 |
Aspartyl (-D-, -Asp-) |
117 |
Succinyl |
117 |
Valine (V, Val) |
117 |
Hydroxybenzotriazole ester (HOBt) |
118 |
Dimethylbenzyl (diMeBzl) |
119 |
Threonine (T, Thr) |
119 |
Cysteinylation |
120 |
Benzyloxymethyl (Bom) |
120 |
p-methoxybenzyl (Mob, Mbzl) |
121 |
4-Nitrophenyl, p-Nitrophenyl (ONp) |
121 |
Cysteine (C, Cys) |
125 |
Chlorobenzyl (ClBzl) |
126 |
Iodination (of Histidine[C4] or Tyrosine[C3]) |
126 |
octanoylation |
128 |
Glutamyl (-Q-, -Gln-) |
128 |
Lysyl (-K-, -Lys-) |
129 |
Glutamyl (-E-, -Glu-) |
129 |
O-Methyl Aspartamyl |
130 |
N alpha -(gamma-Glutamyl)-Glu |
131 |
Norleucine (Nle) |
131 |
Hydroxyproline (Hyp) |
131 |
Isoleucine (I, Ile) |
131 |
Leucine (L, Leu) |
131 |
Methionyl (-M-, -Met-) |
131 |
Hydroxy Aspartamyl |
131 |
bb-dimethyl Cystenyl |
132 |
Asparagine (N, Asn) |
132 |
Pentoses (Ara, Rib, Xyl) |
133 |
Aspartic Acid (D, Asp) |
134 |
Benzyloxycarbonyl (Z) |
134 |
Adamantyl (Ada) |
135 |
p-Nitrobenzyl ester (ONb) |
137 |
Histidyl (-H-, -His-) |
142 |
N-methyl Glutaminyl |
142 |
N-methyl Lysyl |
143 |
O-methyl Glutamyl |
143 |
Diphthamide (from Histidine) |
144 |
Hydroxy Lysyl (-Hyl-) |
145 |
Methyl Methionyl |
146 |
Glutamine (Q, Gln) |
146 |
Deoxyhexoses (Fuc, Rha) |
146 |
Lysine (K, Lys) |
146 |
Pentosyl |
146 |
Aminoethyl Cysteinyl (AECys) |
147 |
4-Glycosyloxy- (pentosyl,C5) (of Proline) |
147 |
Glutamic Acid (E, Glu) |
147 |
Phenylalanyl- (-F-, -Phe-) |
147 |
Methionyl Sulfoxide |
148 |
Pyridyl Alanyl |
149 |
2-Nitrobenzoyl (NBz) |
149 |
Methionine (M, Met) |
149 |
Fluorophenylalanyl |
150 |
Dimethoxybenzyl Trp |
153 |
2-Nitrophenylsulphenyl (Nps) |
154 |
4-Toluenesulphonyl (Tosyl, Tos) |
154 |
3-nitro-2-pyridinesulfenyl (Npys) |
155 |
Histidine (H, His) |
156 |
3,5-Dibromination (of Tyrosine with 79Br) |
156 |
Arginyl (-R-, -Arg-) |
157 |
Citrulline |
158 |
3,5-Dibromination (of Tyrosine with mixture of 79Br and 81Br) |
159 |
Dichlorobenzyl (Dcb) |
160 |
3,5-Dibromination (of Tyrosine with 81Br) |
160 |
Carboxyamidomethyl Cystenyl |
161 |
Hexosamines (GalN, GlcN) |
161 |
Carboxymethyl cysteine (Cmc) |
161 |
Carboxymethyl Cystenyl |
161 |
Methylphenylalanyl |
162 |
Inositol |
162 |
N-Glucosyl (N terminus or N epsilon of Lysine) (Aminoketose) |
162 |
O-Glycosyl- (to Serine or Threonine) |
162 |
Linker attached to peptide in Fmoc peptide synthesis |
162 |
Hexoses (Fru, Gal, Glc, Man) |
163 |
Tyrosinyl (-Y-, -Tyr-) |
163 |
MethionylSulphone |
165 |
Phenylalanine (F, Phe) |
166 |
2,4 -dinitrophenyl (Dnp) |
166 |
Pentaflourophenyl (Pfp) |
166 |
Diphenylmethyl (Dpm) |
167 |
Phospho Seryl |
169 |
2-Chlorobenzyloxycarbonyl (ClZ) |
169 |
Napthyl acetyl |
170 |
N-acetyl Lysyl |
170 |
N-methyl Arginyl |
170 |
Decanoic acid modification of Cys in active site |
172 |
Ethanedithiol/TFA cyclic adduct |
173 |
Carboxy Glutamyl (Gla) |
174 |
Arginine (R, Arg) |
174 |
Acetamidomethyl Cystenyl |
174 |
Acrylamidyl Cystenyl |
176 |
N-Glucuronyl (N terminus) |
177 |
delta-Glycosyloxy- (of Lysine) or beta-Glycosyloxy- (of Phenylalanine or Tyrosine) |
177 |
4-Glycosyloxy- (hexosyl,C6) (of Proline) |
177 |
Benzyl Seryl |
177 |
N-methyl Tyrosinyl |
178 |
a-N-Gluconoylation (His Tagged proteins) |
179 |
p-Nitrobenzyloxycarbonyl (4Nz) |
179 |
2,4,5-Trichlorophenyl |
180 |
2,4,6-trimethyloxybenzyl (Tmob) |
180 |
Xanthyl (Xan) |
181 |
Tyrosine (Y, Tyr) |
182 |
Chlorophenylalanyl |
182 |
Mesitylene-2-sulfonyl (Mts) |
183 |
AEBSF |
184 |
Isopropyl Lysyl |
186 |
Tryptophanyl (-W-, - Trp-) |
186 |
Carboxymethyl Lysyl |
188 |
N-Lipoyl- (on Lysine) |
190 |
Matrix alpha cyano MH+ |
191 |
Benzyl Threonyl |
193 |
Benzyl Cystenyl |
197 |
Napthyl Alanyl |
198 |
Succinyl Aspartamyl |
201 |
HMP (hydroxymethylphenyl)/TFA adduct |
203 |
N-acetylhexosamines (GalNAc, GlcNAc) |
204 |
Tryptophan (W, Trp) |
204 |
Cystine ((Cys)2) |
204 |
Farnesylation |
206 |
S-Farnesyl- |
206 |
Myristoylation-4H (2 double bonds) |
208 |
Myristoleylation (myristoyl with one double bond) |
208 |
Pyridylethyl Cystenyl |
210 |
Myristoylation |
212 |
4-Methoxy-2,3,6-trimethylbenzenesulfonyl (Mtr) |
213 |
2-Bromobenzyloxycarbonyl (BrZ) |
214 |
Formyl Tryptophanyl |
219 |
Benzyl Glutamyl |
219 |
Anisole Adducted Glutamyl |
222 |
9-Fluorenylmethyloxycarbonyl (Fmoc) |
222 |
S-cystenyl Cystenyl |
226 |
Biotinylation (amide bond to lysine) |
226 |
Dimethoxybenzhydryl (Mbh) |
229 |
N-Pyridoxyl (on Lysine) |
231 |
Pyridoxal phosphate (Schiff Base formed to lysine) |
233 |
Dansyl (Dns) |
233 |
Nicotinyl Lysyl |
238 |
2-(p-biphenyl)isopropyl-oxycarbonyl (Bpoc) |
238 |
Palmitoylation |
242 |
Triphenylmethyl (Trityl, Trt) |
243 |
Tyrosinyl Sulphate |
243 |
Phospho Tyrosinyl |
252 |
Pbf (pentamethyldihydrobenzofuransulfonyl) |
252 |
3,5-Diiodination (of Tyrosine) |
258 |
a-N-6-Phosphogluconoylation (His Tagged proteins) |
259 |
N alpha -(gamma-Glutamyl)-Glu2 |
266 |
Stearoylation |
266 |
Pmc (2,2,5,7,8- Pentamethylchroman-6-sulphonyl) |
272 |
Geranylgeranylation |
272 |
Monomethoxytrityl |
276 |
S-Geranylgeranyl |
283 |
O-GlcNAc-1-phosphorylation (of Serine) |
289 |
5'phos dCytidinyl |
289 |
iodo Tyrosinyl |
290 |
Aldohexosyl Lysyl |
291 |
Sialyl |
291 |
N-acetylneuraminic acid (Sialic acid, NeuAc, NANA, SA) |
304 |
5'phos dThymidinyl |
305 |
5'phos Cytidinyl |
305 |
Glutathionation |
306 |
O-Uridinylylation (of Tyrosine) |
306 |
5'phos Uridinyl |
307 |
N-glycolneuraminic acid (NeuGc) |
307 |
S-farnesyl Cystenyl |
313 |
5'phos dAdenosyl |
324 |
O-pantetheinephosphorylation (of Serine) |
327 |
SucPhencarb Lysyl |
329 |
5'phos dGuanosyl |
329 |
5'phos Adenosinyl |
329 |
O-5'-Adenosylation ( of Tyrosine) |
339 |
4'-Phosphopantetheine |
342 |
S-palmityl Cystenyl |
345 |
5'phos Guanosyl |
354 |
Biotinyl Lysyl |
359 |
Fluorescein labelling of peptide N-terminal using NHS ester |
365 |
Hex-HexNAc |
388 |
N alpha -(gamma-Glutamyl)-Glu3 |
391 |
Dioctyl Phthalate |
395 |
PMC Lysyl |
409 |
Aedans Cystenyl |
413 |
Dioctyl Phthalate Sodium Adduct |
415 |
di-iodo Tyrosinyl |
423 |
PMC Arginyl |
454 |
S-Coenzyme A |
457 |
AMP Lysyl |
470 |
3,5,3'-Triiodothyronine (from Tyrosine) |
524 |
S-(sn-1-Dipalmitoyl-glyceryl)- (on Cysteine) |
541 |
S-(ADP-ribosyl)- (on Cysteine) |
541 |
N-(ADP-ribosyl)- (on Arginine) |
541 |
O-ADP-ribosylation (on Glutamate or C terminus) |
541 |
ADP-rybosylation (from NAD) |
587 |
S-Phycocyanobilin (on Cysteine) |
617 |
S-Heme (on Cysteine) |
648 |
N theta -(ADP-ribosyl) diphthamide (of Histidine) |
657 |
NeuAc-Hex-HexNAc |
783 |
O-8 alpha-Flavin [FAD])- (of Tyrosine) |
784 |
S-(6-Flavin [FAD])- (on Cysteine) |
784 |
N theta and N pi-(8alpha-Flavin) (on Histidine) |
893 |
(Hex)3-HexNAc-HexNAc |
1,039 |
(Hex)3-HexNAc-(dHex)HexNAc |