Delta Mass Version 2.1

Compiled by:

Ken Mitchelhill
John Holt Protein Structure Laboratory
St. Vincent's Institute of Medical Research
41 Victoria Parade
Fitzroy 3065
Victoria
Australia

and last modified on December 4th 1995.

Average Mass Change Modification
-79 5' dephospho
-58 Desmosine (from Lysine)
-48 decomposed carboxymethylated Methionine
-42 Ornithine (from Arginine)
-34 Lysinoalanine (from Cysteine)
-34 Lanthionine (from Cysteine)
-34 Dehydroalanine (from Cysteine)
-30 Homoserine formed from Met by CNBr treatment
-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)
-17 Pyroglutamic Acid formed from Gln
-17 N-pyrrolidone carboxyl (N terminus)
-17 N alpha -(gamma-Glutamyl)-lysine
-17 N-(beta-Aspartyl)-Lysine (Crosslink)
-4 3,3',5,5'-TerTyr (Crosslink)
-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 Deamidation of Asparagine and Glutamine to Aspartate and Glutamate
1 Citruline (from Arginine)
13 Syndesine (from Lysine)
14 Methylation (N terminus, N epsilon of Lysine, O of Serine, Threonine or C terminus, N of Asparagine)
15 delta-Hydroxy-allysine (from Lysine)
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 Sulfenic Acid (from Cysteine)
16 Pyruvoyl- (Serine)
16 3,4-Dihydroxy-Phenylalanine (from Tyrosine) (DOPA)
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)
34 3-Chlorination (of Tyrosine with 35Cl)
36 3-Chlorination (of Tyrosine with 37Cl)
38 Potassium
41 Carbamylation
42 Acetylation (N terminus, N epsilon of Lysine, O of Serine) (Ac)
43 N-Trimethylation (of Lysine)
44 gamma Carboxylation of Glutamate or beta Carboxylation of Aspartate
44 disodium
45 Nitro (NO2)
56 t-butyl ester(OtBu) and t-butyl (tBu)
57 Glycyl (-G-,-Gly-)
58 Carboxymethyl (on Cystine)
60 sodium + potassium
64 Selenocysteine (from Serine)
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 Acrylamidyl or Acrylamide adduct
71 Sarcosyl
71 Alanyl (-A-, -Ala-)
71 Acetamidomethyl (Acm)
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 Beta mercaptoethanol adduct
76 Phenyl ester (OPh) (on acidic)
78 3-Bromination (of Tyrosine with 79Br)
80 Phosphorylation (O of Serine, Threonine, Tyrosine and Aspartate, N epsilon of Lysine)
80 3-Bromination (of Tyrosine with 81Br)
80 Sulphonation (SO3H) (of PMC group)
80 Sulphation (of O of Tyrosine)
82 Cyclohexyl ester (OcHex)
83 Homoseryl lactone
83 Dehydroamino butyric acid (Dhb)
85 Gamma Aminobutyryl
85 2-Aminobutyric acid (Abu)
85 2-Aminoisobutyric acid (Aib)
86 Diaminopropionyl
86 t-butyloxymethyl (Bum)
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 Triflouroacetyl (TFA)
97 N-hydroxysuccinimide (ONSu, OSu)
97 Prolyl (-P-, -Pro-)
99 Valyl (-V-, -Val-)
99 Isovalyl (-I-,-Iva-)
100 t-Butyloxycarbonyl (tBoc)
101 Threoyl (-T-, -Thr-)
101 Homoseryl (-Hse-)
103 Cystyl (-C-, -Cys-)
104 Benzoyl (Bz)
104 4-Methylbenzyl (Meb)
105 Serine (S, Ser)
106 HMP (hydroxymethylphenyl) linker
106 Thioanisyl
106 Thiocresyl
107 Diphthamide (from Histidine)
111 Pyroglutamyl
111 2-Piperidinecarboxylic acid (Pip)
113 Hydroxyprolyl (-Hyp-)
113 Norleucyl (-Nle-)
113 Isoleucyl (-I-, -Ile-)
113 Leucyl (-L-, -Leu-)
114 Ornithyl (-Orn-)
114 Asparagyl (-N-, -Asn-)
114 t-amyloxycarbonyl (Aoc)
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])
128 Glutamyl (-Q-, -Gln-)
128 N-methyl Lysyl
128 Lysyl (-K-, -Lys-)
129 O-Methyl Aspartamyl
129 Glutamyl (-E-, -Glu-)
130 N alpha -(gamma-Glutamyl)-Glu
131 Norleucine (Nle)
131 Hydroxy Aspartamyl
131 Hydroxyproline (Hyp)
131 bb-dimethyl Cystenyl
131 Isoleucine (I, Ile)
131 Leucine (L, Leu)
131 Methionyl (-M-, -Met-)
132 Asparagine (N, Asn)
132 Pentoses (Ara, Rib, Xyl)
133 Aspartic Acid (D, Asp)
134 Dmob (Dimethoxybenzyl)
134 Benzyloxycarbonyl (Z)
134 Adamantyl (Ada)
135 p-Nitrobenzyl ester (ONb)
137 Histidyl (-H-, -His-)
142 N-methyl Glutamyl
143 O-methyl Glutamyl
144 Hydroxy Lysyl (-Hyl-)
145 Methyl Methionyl
146 Glutamine (Q, Gln)
146 Aminoethyl Cystenyl
146 Pentosyl
146 Deoxyhexoses (Fuc, Rha)
146 Lysine (K, Lys)
146 Aminoethyl cystenyl (-AECys-)
147 4-Glycosyloxy- (pentosyl,C5) (of Proline)
147 Methionyl Sulfoxide
147 Glutamic Acid (E, Glu)
147 Phenylalanyl- (-F-, -Phe-)
148 Pyridyl Alanyl
149 Flourophenylalanyl
149 2-Nitrobenzoyl (NBz)
149 Methionine (M, Met)
151 3-methyl Histidyl
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 Carboxymethyl Cystenyl
161 Methylphenylalanyl
161 Hexosamines (GalN, GlcN)
161 Carboxymethyl cysteine (Cmc)
162 N-Glucosyl (N terminus or N epsilon of Lysine) (Aminoketose)
162 O-Glycosyl- (to Serine or Threonine)
162 Hexoses (Fru, Gal, Glc, Man)
162 Inositol
163 MethionylSulphone
163 Tyrosinyl (-Y-, -Tyr-)
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 Isopropyl Lysyl
170 N-methyl Arginyl
172 Ethaneditohiol/TFA cyclic adduct
173 Carboxy Glutamyl (Gla)
174 Acetamidomethyl Cystenyl
174 Acrylamidyl Cystenyl
174 Arginine (R, Arg)
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
179 p-Nitrobenzyloxycarbonyl (4Nz)
179 2,4,5-Trichlorophenyl
180 2,4,6-trimethyloxybenzyl (Tmob)
180 Xanthyl (Xan)
181 Phospho Threonyl
181 Tyrosine (Y, Tyr)
182 Chlorophenylalanyl
182 Mesitylene-2-sulfonyl (Mts)
186 Carboxymethyl Lysyl
186 Tryptophanyl (-W-, - Trp-)
188 N-Lipoyl- (on Lysine)
190 Matrix alpha cyano MH+
191 Benzyl Threonyl
193 Benzyl Cystenyl
197 Napthyl Alanyl
198 Succinyl Aspartamyl
200 Succinimidophenyl carb..
201 HMP (hydroxymethylphenyl)/TFA adduct
203 N-acetylhexosamines (GalNAc, GlcNAc)
204 Tryptophan (W, Trp)
204 Cystine ((Cys)2)
204 Farnesylation
206 S-Farnesyl-
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 S-cystenyl Cystenyl
222 9-Flourenylmethyloxycarbonyl (Fmoc)
226 Lipoic acid (amide bond to lysine)
226 Biotinylation (amide bond to lysine)
226 Dimethoxybenzhydryl (Mbh)
229 N-Pyridoxyl (on Lysine)
231 Pyridoxal phosphate (Schiff Base formed to lysine)
233 Nicotinyl Lysyl
233 Dansyl (Dns)
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 3,5-di-I"
259 N alpha -(gamma-Glutamyl)-Glu2
266 O-GlcNAc-1-phosphorylation (of Serine)
266 "2,2,5,7,8- Pentamethylchroman-6-sulphonyl (Pmc)"
266 Stearoylation
272 Geranylgeranylation
276 S-Geranylgeranyl
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 S-farnesyl Cystenyl
307 N-glycolneuraminic acid (NeuGc)
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
341 GL2
342 S-palmityl Cystenyl
345 5'phos Guanosyl
354 Biotinyl Lysyl
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
775 MGDG
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
1039 (Hex)3-HexNAc-(dHex)HexNAc
The above data is a compilation of information from: plus personal communications from: Comments regarding style or content are welcome at:

ken_mitchelhill.medicine@muwayf.unimelb.edu.au

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Created: 30 May 1995
Last modified: 4th December 1995
Authorised by: Head of Department
Access: All
Copyright © 1994, The University of Melbourne.
Maintainer: Ken Mitchelhill, ken_mitchelhill.medicine@muwayf.unimelb.edu.au