Methotrexate (MTX) Summary

METADATA
Parameter Value
Method HamiltonianREMD
Number of MD replicas 16
Length of the MD simulations (ns) 10
Number of steps between exchanges 100
Force Field General Amber Force Field (GAFF)
Charge scheme Semi-Empirical (AM1)
REMD Progression Geometric Progression
Initial (low) temperature (K) / Scaling factor 298 / 1
Final (high) temperature (K) / Scaling factor 498 / 0.59
Molecule number of atoms 53
Molecule charge (simulated) -2
System number of atoms 1979
Box size in simulations (nm) 0.8
Solvent model TIP3P
Box type in simulations Octahedron
MD ensemble NVT
0
1-2 2-3 3-4 4-5 5-6 6-7 7-8 8-9 9-10 10-11 11-12 12-13 13-14 14-15 15-16
Probabilities 0.72 0.73 0.74 0.74 0.75 0.75 0.75 0.76 0.76 0.77 0.77 0.78 0.78 0.79 0.79
# Exchanges 3638 3638 3745 3676 3728 3763 3788 3800 3799 3807 3799 3883 3860 3957 3951
Avg. # Exchanges 0.73 0.73 0.75 0.74 0.75 0.75 0.76 0.76 0.76 0.76 0.76 0.78 0.77 0.79 0.79
RMSd Averages
Reduced chart version
Name Average (Å) Standard deviation (Å)
RMSd_first 2.5538 0.6516
RMSd_exp 2.4138 0.5087
RMSdist_first 1.5420 0.6528
RMSdist_exp 1.2992 0.3510
RMSd Plot
Rgyr Averages
Reduced chart version
Name Average (Å) Standard deviation (Å)
Rgyr 5.4123 0.4402
RgyrX 2.7207 0.1570
RgyrY 4.9879 0.4681
RgyrZ 5.1128 0.5537
Rgyr Plot
Fluctuation Averages
Name Atomic_Fluct
Average (Å) 1.7805
Standard deviation (Å) 0.6474
Atoms list
Atom name Fluctuation (Å)
N1 1.918
C2 1.834
NA2 2.578
N3 1.89
C4 1.674
NA4 2.793
C4A 0.856
N5 1.233
C6 1.078
C7 1.59
N8 1.896
C8A 1.209
C9 1.856
N10 1.793
CM 2.729
C11 0.769
C12 1.406
C13 1.568
C14 1.307
C15 1.659
C16 1.465
C 1.054
O 2.006
N 0.86
CA 1.204
CT 2.26
O1 2.934
O2 2.946
CB 1.035
CG 1.505
CD 2.217
OE1 2.827
OE2 2.806
3D View
Fluctuation Plot