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Phosphorylation

Mass Changes

 
Modification Monoisotopic Mass Change Average Mass Change
Homeserine formed from Met by CNBR treatment -29.99281 -30.0935
Pyroglutamic acid formed from Gln -17.02655 -17.0306
Disulphide bond formation -2.01565 -2.0159
C-terminal amide formed from Gly -0.98402 -0.9847
Deamidation of Asn and Gln 0.98402 -0.9847
Methylation 14.01565 14.0269
Hydroxylation 15.99491 15.9994
Oxidation of Met 15.99491 15.9994
Formylation 27.99491 28.0104
Acetylation 42.01056 42.0373
Carboxylation of Asp and Glu 43.98983 44.0098
Carboxyamidomethylcysteine (Cam) from Cys (iodoacetamide) 57.02146 57.0520
Carboxymethylcysteine (Cme) from Cys (iodoacetic acid)
58.00548 58.0367
Phosphorylation 79.96633 79.9799
Sulphation 79.95682 80.0624
Pyridylethyleysteine (PE-Cys) from Cys (4-vinylpyridine) 105.05785 105.1393
Cysteinylation 119.00410 119.1442
Pentoses (Ara, Rib, Xyl) 132.04226 132.1161
Deoxyhexoses (Fuc, Rha) 146.05791 146.1430
Hexosamines (GalN, GlcN) 191.06881 161.1577
Hexoses (Fru, Gal, Glc, Man) 162.05282 162.1424
Lipoic acid (amide bond to lysine) 188.03296 188.3147
N-acetylhexosamines (GalNAc, GlcNAc) 203.07937 203.1950
Farnesylation 204.18780 204.3556
Myristoylation 210.19836 210.3598
Biotinylation (amide bond to lysine) 226.07760 226.2994
Pyridoxal phosphate (Schiff Base formed to lysine) 231.02966 231.1449
Palmitoylation 238.22966 238.4136
Stearoylation 266.26096 266.4674
Geranylgeranylation 272.25040 272.4741
N-acetylneuraminic acid (Sialic acid, NeuAc, NANA, SA) 291.09542 291.2579
Gluthathionylation 305.06816 305.3117
N-glycolylneuraminic acid (NeuGc) 307.09033 307.2573
5'-Adenosylation 329.05252 329.2091
4'-Phosphopantetheine 339.07797 339.3294
ADP-ribosylation (from NAD) 541.06111 541.3052
Methyl (Me) 14.01565 14.0269
Formyl (CHO) 27.99491 28.0104
Ehtyl (Et) 28.03130 28.0538
Acetyl (Ac) 42.01056 42.0373
t-Butyl (t-Bu) 56.06260 56.1075
Anisyl 90.04695 90.1246
Benzyl (Bzl) 90.04695 90.1246
Trifluoroacetyl (Tfa) 95.98230 96.0087
N-hydroxysuccinimide (ONSu, Osu) 97.01638 97.0734
T-Butyloxycarbonyl (Boc) 100.05243 100.1173
Benzoyl (Bz) 104.02621 104.1082
4-Methylbenzyl (Meb) 104.06260 104.1515
Thioanisyl 106.02411 106.1912
Benzyloxymethyl (Bom) 120.05751 120.1509
4-Nitrophenyl (Onp) 121.01638 121.0954
Benzyloxycarbonyl (Z) 134.03678 134.1344
2-Nitrobenzoyl (NBz) 149.01129 149.1058
2-Nitrophenylsulphenyl (Nps) 152.98845 153.1614
4-Toluenesulphonyl (Tosyl, Tos) 154.00885 154.1894
Pentafluorophenyl (Pfp) 165.98419 166.0501
Diphenylmethyl (Dpm) 166.07825 166.2224
2-Chlorobenzyloxycarbonyl (Cl-Z) 167.99781 168.5792
2, 4, 5-Trichlorophenyl 177.91438 179.4320
2-Bromobenzyloxycarbonyl (Br-Z) 211.94729 213.0305
9-Fluorenylmethyloxycarbonyl (Fmoc) 222.06808 222.2432
Triphenylmethyl (Triyl, Trt) 242.10955 242.3202
2, 2, 5, 7, 8-pentamehylchroman-6-sulphonyl (Pmc) 266.09767 266.3611
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