PTM General Information
PTM Description Ubiquitinisoleucine
Modified Amino Acid I
Position of Modification on Amino Acid amino-acid side chain
Position in the Polypeptide any position
Correction Formula H-4;O-1
Monoisotopic Mass Difference -20.0262
Average Mass Difference -20.03
Localization cytoplasm, nucleus, mitochondrial matrix, etc. [Detail]
RESID ID AA0466
Formula Structure
Formula 3D Structure
Substrate Site Specificity
Number of Experimentally Validated Sites117
The Matrix of Positional Amino Acid Frequency Surrounding Modified Site
Pos.-6-5-4-3-2-10+1+2+3+4+5+6
A0.060.060.110.0600.06000.110.06000.06
R000.110.1100.06000.060.06000
N0.06000.0600000.0600.0600.11
D0.170.060.0600.060000.060.2200.060.06
C0.0600.0600.33000.3300.0600.110.06
G0.06000.0600.0600.060.060.060.060.060.06
E0.110.060.110.060.220.0600.2800.170.1100.17
Q0.1700.060.0600.11000.060.060.060.060
H0.060.0600.060000000.1100.06
I00.1700.0600.110000.060.060.060.06
L00.170.280.060.11000.110.280.110.220.110
K0.060.110.060.0600.0600.060.060.06000.11
M00.060.060000000.0600.060
F000000.06000.1100.060.170
P0.11000.060.060.11000000.110.06
S0.110.0600.0600.11000.060000.06
T00.1100.0600.06000.0600.110.060.06
W000.0600.0600000000
Y00.06000.060.1100.060.0600.170.110
V00.060.060.220.110.0600.1100.0600.060.11
Sequence Logo

Average Solvent Accessibility Surrounding Modified Site
Secondary Structure Logo




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