PTM General Information
PTM Description 4-carboxyglutamate
Modified Amino Acid E
Position of Modification on Amino Acid amino-acid side chain
Position in the Polypeptide any position
Correction Formula C1;O2
Monoisotopic Mass Difference 43.9898
Average Mass Difference 44.01
Localization extracellular and lumenal localisation [Detail]
RESID ID AA0032
Formula Structure
Formula 3D Structure
Substrate Site Specificity
The Matrix of Positional Amino Acid Frequency Surrounding Modified Site
Pos.-6-5-4-3-2-10+1+2+3+4+5+6
A0.080.120.0200.10.0100.110.090.010.030.030
R0.080.120.130.030.020.1600.120.10.120.030.020.01
N0.050.080.10.020.090.0200.030.020.020.050.050.06
D0.030.010.020.010.030.0200.020.010.030.040.010.05
C00.020.10.170.090.0200.090.110.180.010.010.1
G0.010.080.030.10000.01000.080.080
E0.370.170.240.280.090.2700.260.10.290.250.180.38
Q0.020.020.030.020.010.0100.020.010.030.050.020.02
H0.0100.0200.010000.020.010.010.010.02
I0.010.030.0200.030.0200.040.0400.050.040.01
L0.130.030.020.110.120.1900.060.080.010.020.050.09
K0.030.050.060.050.040.0300.040.060.090.070.030.03
M0.010000.020.0200.010.0200.0200
F0.030.070.060.060.10.1100.060.110.030.050.170.07
P0.0200.0200.010.0200.010.020.030.030.020.02
S0.060.060.090.10.10.0200.040.030.070.110.060.03
T0.010.030.030.020.050.0300.030.090.020.010.090.02
W000000.01000.040.01000.05
Y0.020.030.010.010.030.04000.010.010.030.070
V0.030.050.020.030.060.0200.070.050.030.070.050.02
Sequence Logo

Average Solvent Accessibility Surrounding Modified Site
Secondary Structure Logo




TOP