General Information
PTM Description
Pyrrolidone carboxylic acid
Modified Amino Acid
Q
Position of Modification on Amino Acid
protein backbone
Position in the Polypeptide
N-terminal amino group
Correction Formula
H-3;N-1
Monoisotopic Mass Difference
-17.0265
Average Mass Difference
-17.03
Localization
extracellular and lumenal localisation [Detail]
RESID IDAA0031
Formula Structure
Formula 3D Structure
Substrate Site Specificity
Number of Experimentally Validated Sites821
The Matrix of Positional Amino Acid Frequency Surrounding Modified Site
Pos.0+1+2+3+4+5+6
A00.080.070.070.040.080.04
R00.050.050.020.050.030.04
N00.020.060.040.060.020.04
D00.060.070.060.090.040.06
C00.010.040.020.020.040.06
G00.060.070.080.060.140.08
E00.060.040.040.050.080.06
Q00.060.040.040.060.080.05
H00.070.020.010.040.010.02
I00.030.020.010.010.020.04
L00.120.050.090.040.060.05
K00.040.020.040.020.050.04
M0000.010.010.010.01
F00.050.040.080.020.040.04
P00.050.120.10.070.110.13
S00.080.050.10.10.080.07
T00.040.070.070.140.040.03
W00.010.080.0300.010.05
Y00.030.030.050.080.030.03
V00.090.050.040.060.040.05
Sequence Logo

Average Solvent Accessibility Surrounding Modified Site
Secondary Structure Logo