Custom List
################################## COMMON BIOLOGICAL MODS
ID   Hydroxylation
TG   K or N
PP   Anywhere.
CF   O1
MT   Common Biological
DR   Unimod; 35.
//
ID   Carboxylation
TG   K or D or E
PP   Anywhere.
MT   Common Biological
CF   C1 O2
DR   Unimod; 299.
//
ID   Phosphorylation
TG   S or T
PP   Anywhere.
NL   HCD:H0 or HCD:H3 O4 P1
MT   Common Biological
CF   H1 O3 P1
DR   Unimod; 21.
//
ID   Phosphorylation
TG   Y
PP   Anywhere.
NL   HCD:H0 or HCD:H3 O4 P1
MT   Common Biological
CF   H1 O3 P1
DI   HCD:C8 H10 N1 O4 P1
DR   Unimod; 21.
//
ID   Acetylation
TG   X
PP   N-terminal.
MT   Common Biological
CF   H2 C2 O1
DR   Unimod; 1.
//
ID   Acetylation
TG   K
PP   Anywhere.
MT   Common Biological
NL   ETD:45.0204
DI   HCD:C7 H11 N1 O1
CF   H2 C2 O1
DR   Unimod; 1.
//
ID   Lactylation
TG   K
PP   Anywhere.
MT   Less Common
CF   H3 C3 O2
//
ID   Formylation
TG   K
PP   Anywhere.
MT   Common Biological
DI   HCD:111.068423533
CF   C1 O1
DR   Unimod; 122.
//
ID   Methylation
TG   K or R
PP   Anywhere.
MT   Common Biological
CF   H2 C
DR   Unimod; 34.
//
ID   Dimethylation
TG   K
PP   Anywhere.
MT   Common Biological
CF   H4 C2
DR   Unimod; 36.
//
ID   Dimethylation
TG   R
PP   Anywhere.
NL   ETD:45.0579
NL   ETD:31.0422
MT   Common Biological
CF   H4 C2
DR   Unimod; 36.
//
ID   Trimethylation
TG   K
PP   Anywhere.
MT   Common Biological
CF   H6 C3
NL   ETD:45.0204
DR   Unimod; 37.
//
ID   Sulfonation
TG   Y
PP   Anywhere.
NL   O3 S1
MT   Common Biological
CF   O3 S1
DR   Unimod; 40.
//
ID   Citrullination
TG   R
PP   Anywhere.
MT   Common Biological
DI   HCD:129.090223533
NL   HCD:43.0058
CF   H-1 N-1 O1
DR   Unimod; 7.
//
ID   Hydroxylation
TG   P
PP   Anywhere.
MT   Common Biological
CF   O1
DI   HCD:170.060123533
DR   Unimod; 35.
//
ID   Nitrosylation
TG   Y
PP   Anywhere.
MT   Common Biological
CF   H-1 N1 O2
DI   HCD:180.053523533
DR   Unimod; 354.
//
ID   Butyrylation
TG   K
PP   Anywhere.
MT   Common Biological
DI   HCD:153.115323533
CF   C4 H6 O1
DR   Unimod; 1289.
//
ID   Crotonylation
TG   K
PP   Anywhere.
MT   Common Biological
DI   HCD:151.099723533
CF   C4 H4 O1
DR   Unimod; 1363.
//
ID   Glutarylation
TG   K
PP   Anywhere.
MT   Common Biological
DI   HCD:181.110323533
NL   ETD:115.0395
CF   C5 H6 O3
DR   Unimod; 1848.
//
ID   Hydroxybutyrylation
TG   K
PP   Anywhere.
MT   Common Biological
DI   HCD:169.110323533
CF   C4 H7 O2
//
ID   Malonylation
TG   K
PP   Anywhere.
MT   Common Biological
DI   HCD:C7 H11 N1 O1
DI   HCD:169.073923533
NL   HCD:43.9898
NL   ETD:87.0082
CF   C3 H2 O3
DR   Unimod; 747.
//
ID   Succinylation
TG   K
PP   Anywhere.
MT   Common Biological
DI   HCD:183.089523533
NL   ETD:101.0239
CF   C4 H4 O3
DR   Unimod; 64.
//
ID   Glu to PyroGlu
TG   Q
PP   N-terminal.
MT   Common Biological
CF   H-3 N-1
DR   Unimod; 28.
//
ID   HexNAc
TG   Nxs or Nxt
PP   Anywhere.
NL   C8H13NO5
CF   C8H13NO5
MT   Common Biological
DR   Unimod; 43.
//
ID   HexNAc
TG   S or T
PP   Anywhere.
NL   C8H13NO5
CF   C8H13NO5
MT   Common Biological
DR   Unimod; 43.
//
ID   ADP-ribosylation
TG   S
PP   Anywhere.
MT   Common Biological
CF   C15 H21 N5 O13 P2
DR   Unimod; 213.
//
ID   Pyridoxal phosphate
TG   K
PP   Anywhere.
MT   Common Biological
CF   C8 H8 N1 O5 P1
DR   Unimod; 46.
//
ID   Nitrosylation
TG   C
PP   Anywhere.
MT   Common Biological
CF   H-1 N1 O1
DR   Unimod; 275.
//
################################## COMMON ARTIFACT MODS
ID   Deamidation
TG   N or Q
PP   Anywhere.
MT   Common Artifact
CF   H-1 N-1 O1
DR   Unimod; 7.
//
ID   Ammonia loss
TG   C
PP   Peptide N-terminal.
MT   Common Artifact
CF   H-3 N-1
DR   Unimod; 385.
//
ID   Ammonia loss
TG   N
PP   Anywhere.
MT   Common Artifact
CF   H-3 N-1
DR   Unimod; 385.
//
ID   Water Loss
TG   E
PP   Peptide N-terminal.
MT   Common Artifact
CF   H-2 O-1
DR   Unimod; 23.
//
ID   Carbamyl
TG   X
PP   Peptide N-terminal.
MT   Common Artifact
CF   H1 C1 N1 O1
DR   Unimod; 5.
//
ID   Carbamyl
TG   K or R or C or M
PP   Anywhere.
MT   Common Artifact
CF   H1 C1 N1 O1
DR   Unimod; 5.
//
################################## LESS COMMON MODS
ID   Proline pyrrole to pyrrolidine six member ring
TG   P
PP   Anywhere.
MT   Less Common
CF   C1
//
ID   Amidation
TG   X
PP   Peptide C-terminal.
MT   Less Common
CF   H1 N1 O-1
DR   Unimod; 2.
//
ID   Propionamidation
TG   C or K
PP   Anywhere.
MT   Less Common
CF   H5 C3 N1 O1
DR   Unimod; 24.
//
ID   Propionamidation
TG   X
PP   Peptide N-terminal.
MT   Less Common
CF   H5 C3 N1 O1
DR   Unimod; 24.
//
ID   Carboxymethylation
TG   X
PP   Peptide N-terminal.
MT   Less Common
CF   H2 C2 O2
DR   Unimod; 6.
//
ID   Carboxymethylation
TG   C or K or W
PP   Anywhere.
MT   Less Common
CF   H2 C2 O2
DR   Unimod; 6.
//
ID   Dioxidation
TG   W or P or R or K or M or F or Y or C
PP   Anywhere.
MT   Less Common
CF   O2
DR   Unimod; 425.
//
ID   Oxidation
TG   Y or W or F or D or E or V or H or R or C or U or I or L or Q or S or T
PP   Anywhere.
MT   Less Common
CF   O1
DR   Unimod; 35.
//
ID   Carbamidomethyl
TG   K or H or D or E or S or T or Y
PP   Anywhere.
MT   Less Common
CF   H3 C2 N1 O1
DR   Unimod; 4.
//
ID   Carbamidomethyl
TG   X
PP   Peptide N-terminal.
MT   Less Common
CF   H3 C2 N1 O1
DR   Unimod; 4.
//
ID   Acetylation
TG   S or T
PP   Anywhere.
MT   Less Common
CF   H2 C2 O1
DR   Unimod; 1.
//
ID   Biotinylation
TG   K
PP   Anywhere.
MT   Less Common
CF   C10 H14 N2 O2 S1
DI   HCD:309.151123533
DR   Unimod; 3.
//
ID   Propionylation
TG   K
PP   Anywhere.
MT   Less Common
DI   HCD:139.099823533
CF   C3 H4 O1
DR   Unimod; 58.
//
ID   Water loss
TG   D
PP   Anywhere.
MT   Less Common
CF   H-2 O-1
DR   Unimod; 23.
//
ID   Oxidation to Kynurenine
TG   W
PP   Anywhere.
MT   Less Common
DI   HCD:C9 H10 N2 O3
CF   C-1 O1
DR   Unimod; 351.
//
ID   Dehydroalanine
TG   C
PP   Anywhere.
MT   Less Common
CF   H-2 S-1
DR   Unimod; 368.
//
ID   Dehydroalanine
TG   S
PP   Anywhere.
MT   Less Common
CF   H-2 O-1
//
ID   Dehydrobutyrine
TG   T
PP   Anywhere.
MT   Less Common
CF   H-2 O-1
//
ID   Didehydro
TG   Y
PP   Anywhere.
MT   Less Common
CF   H-2
DR   Unimod; 401.
//
ID   Formylation
TG   X
PP   Peptide N-terminal.
MT   Less Common
CF   C1 O1
DR   Unimod; 122.
//
ID   Formylation
TG   S or T
PP   Anywhere.
MT   Less Common
CF   C1 O1
DR   Unimod; 122.
//
ID   Methylation
TG   C or H or N or Q or I or L or D or E or S or T
PP   Anywhere.
MT   Less Common
CF   H2 C
DR   Unimod; 34.
//
ID   Methylation
TG   X
PP   N-terminal.
MT   Less Common
CF   H2 C
DR   Unimod; 34.
//
ID   Methylation
TG   X
PP   C-terminal.
MT   Less Common
CF   H2 C
DR   Unimod; 34.
//
ID   Ethylation
TG   K or E or D
PP   Anywhere.
MT   Less Common
CF   H4 C2
DR   Unimod; 280.
//
ID   Ethylation
TG   X
PP   Peptide N-terminal.
MT   Less Common
CF   H4 C2
DR   Unimod; 280.
//
ID   Oxidation and then loss of oxidized M side chain
TG   M
PP   Anywhere.
MT   Less Common
CF   H-4 C-1 S-1 O1
DR   Unimod; 1914.
//
ID   Dimethylation
TG   N
PP   Anywhere.
MT   Less Common
CF   H4 C2
DR   Unimod; 36.
//
ID   Pyrrolidinone
TG   P
PP   Anywhere.
MT   Less Common
CF   H-2 C-1 O-1
DR   Unimod; 360.
//
ID   Trioxidation
TG   C
PP   Anywhere.
MT   Less Common
CF   O3
DR   Unimod; 345.
//
ID   Sulfonation
TG   S or T
PP   Anywhere.
NL   O3 S1
MT   Less Common
CF   O3 S1
DR   Unimod; 40.
//
ID   Farnesylation
TG   C
PP   Anywhere.
NL   H0 or H24 C15
MT   Less Common
CF   H24 C15
DR   Unimod; 44.
//
ID   Succinylation
TG   X
PP   N-terminal.
MT   Less Common
CF   C4 H4 O3
DR   Unimod; 64.
//
ID   Myristoylation
TG   G
MT   Less Common
PP   N-terminal.
NL   H0 or H26 C14 O1
CF   H26 C14 O1
//
ID   Myristoylation
TG   C or K
PP   Anywhere.
MT   Less Common
NL   H0 or H26 C14 O1
CF   H26 C14 O1
//
ID   Palmitoylation
TG   K or S or T or C
MT   Less Common
PP   Anywhere.
NL   H0 or H30 C16 O1
CF   H30 C16 O1
DR   Unimod; 47.
//
ID   Quinone
TG   Y or W
MT   Less Common
PP   Anywhere.
CF   H-2 O2 
DR   Unimod; 392.
//
ID   Decarboxylation
TG   D or E
PP   Anywhere.
MT   Less Common
CF   H-2 C-1 O-1
DR   Unimod; 914.
//
ID   Reduction
TG   D or S or T
PP   Anywhere.
MT   Less Common
CF   O-1
DR   Unimod; 447.
//
################################## METALS
ID   Sodium
TG   D or E
PP   Anywhere.
MT   Metal
CF   H-1 Na1
DR   Unimod; 30.
//
ID   Potassium
TG   D or E
PP   Anywhere.
MT   Metal
CF   H-1 K1
DR   Unimod; 530.
//
ID   Calcium
TG   D or E
PP   Anywhere.
MT   Metal
CF   H-2 Ca1
DR   Unimod; 951.
//
ID   Zinc
TG   D or E
PP   Anywhere.
MT   Metal
CF   H-2 Zn1
DR   Unimod; 954.
//
ID   Fe[III]
TG   D or E
PP   Anywhere.
MT   Metal
CF   H-3 Fe1
DR   Unimod; 1870.
//
ID   Fe[II]
TG   D or E
PP   Anywhere.
MT   Metal
CF   H-2 Fe1
DR   Unimod; 952.
//
ID   Magnesium
TG   D or E
PP   Anywhere.
MT   Metal
CF   H-2 Mg1
DR   Unimod; 956.
//
ID   Cu[I]
TG   D or E
PP   Anywhere.
MT   Metal
CF   H-1 Cu1
DR   Unimod; 531.
//
################################## PROTEASE-SPECIFIC
ID   GG (Ubiquitination Site)
TG   K
PP   Anywhere.
MT   Trypsin Digested
DI   HCD:114.042923533
CF   H6 C4 N2 O2
//
ID   DVIEVYQEQTGG (SUMO-1 Site human)
TG   D
PP   Anywhere.
MT   AspN Digested
CF   C57 H86 N14 O22
//
ID   DVFQQQTGG (SUMO-2/3 Site human)
TG   D
PP   Anywhere.
MT   AspN Digested
CF   C41 H60 N12 O15
//
ID   EQIGG (sumoylation (SMT-3) Site yeast)
TG   K
PP   Anywhere.
MT   Trypsin Digested
CF   C20 H32 N6 O8
//
################################## SPECULATIVE/UNCHARACTERIZED
ID   Carbon Adduct
TG   X
PP   Peptide N-terminal.
MT   Speculative
CF   C1
//
ID   H-2
TG   M
PP   Peptide N-terminal.
MT   Speculative
CF   H-2
//
ID   H-2 O1 
TG   L or I or P or W or S
PP   Anywhere.
MT   Speculative
CF   H-2 O1
//