Trajectory SP709

Force field: martini_v2.2
Simulation length (ns): 5000
Electric field (kJ mol-1 nm-1 e-1): 0
Temperature (K): 300 (v-rescale)
Pressure (bar): 1 (Parrinello-rahman semiisotropic)
Number of particles: 17382
Time step (fs) : 25
Software: GROMACS 2021.5
Supercomputer: Finisterrae III CESGA
Peptides: P144 AP02118
Lipids: POPE, POPG
Heteromolecules:
Ions: NA
Water model: W

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Sequence :
LPAALAGIGGILGKLF
Total charge (e): +1
Number of residues: 16
By amino acid:
  Basic: 1
  Acidic: 0
  Hydrophobic: 15
  Polar: 0
Electrostatic Dipolar Moment (e nm): 2.14
Longitudinal (e nm): 2.01
Transversal (e nm): 0.74
Hydrophobic Dipolar Moment (nm): 1.4
Longitudinal (nm): 0.12
Transversal (nm): 1.39
Secondary structure: Helix
Activity:

Download Files
  ITP file.
  JSON file.
  PDB file.

Click on any component to highlight it from the plot.
Upper leaflet
Lower leaflet

Lipids


Membrane model for: POPG:POPE (1:3) (Gram-negative bacteria)

POPE
1-Palmitoyl-2-oleoyl-sn-glycero-3-phosphoethanolamine
Total charge (e): 0

  See POPE lipid
  Download ITP File.
  Download PDB File.
POPG
1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoglycerol
Total charge (e): -1

  See POPG lipid
  Download ITP File.
  Download PDB File.
Last snapshot
Total contacts per residue
 
Contacts per residue
(normalized by number of beads in the residue)
Number of total contacts per residue type:
Number of contacts between each residue of the peptide backbone and the different lipid types, averaged over the last microsecond and using a cut-off of 0.6 nm.
...
Contacts per residue
(normalized by total number of beads of the amino acid):
Number of contacts between each residue of the peptide backbone and the different lipid types, averaged over the last microsecond and using a cut-off of 0.6 nm.
...

Molecular Dynamics based descriptors
Average and standard deviation, calculated using the autocorrelation function (for time series) or the width of the distribution, for the last microsecond of the trajectory


Area per lipid
Membrane (nm2): 0.606585000 ± 0.000844047
Upper leaflet (nm2): 0.606585000 ± 0.000844047
Lower leaflet (nm2): 0.606585000 ± 0.000844047
Average Z coordinate
Peptide (nm): 8.3296000 ± 0.0369358
First Residue (nm): 8.377220 ± 0.038617
Last Residue (nm): 8.3963600 ± 0.0490119
Membrane (nm): 6.51728000 ± 0.00896096
Upper leaflet Head Group (nm): 8.5452300 ± 0.0107194
Lower leaflet Head Group (nm): 4.49157000 ± 0.00732651
Bilayer Thickness (nm): 4.053660 ± 0.012984
Peptide insertion (nm): -0.2156330 ± 0.0384599
Contacts
Peptide - Water: 17.072500 ± 0.531886
Peptide - Head groups: 10.220000 ± 0.249067
Peptide - Tail groups: 10.635000 ± 0.308431
Tilt (°): 90.59050 ± 1.37398
PepDF:
5(ns):  CVS
Displacement (nm): 0.7076280 ± 0.0300774
Precession(°): 0.27618 ± 2.27190
50(ns)  CVS
Displacement (nm): 1.9747600 ± 0.0905889
Precession(°): 6.55109 ± 10.07060
100(ns)  CVS
Displacement(nm): 2.5569800 ± 0.0957895
Precession(°): 21.0610 ± 17.0037
200(ns)  CVS
Displacement(nm): 3.300310 ± 0.148391
Precession(°): 40.5622 ± 25.8366

  Download JSON File.

Peptide Analyses


Peptide Displacement Fingerprint (PepDF)
Lateral displacement vs Rotational Displacement along the trajectory, for different time windows .
Tilt angle:
Peptide tilt angle evolution, defined as the angle between the peptide helical axis and the bilayer normal .
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Hydrophobic dipolar moment
Hydrophobic dipolar moment.
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Electrostatic dipolar moment
Electrostatic dipolar moment.
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Peptide spin:
Evolution of the angle formed by the transversal component of the hydrophobic dipolar moment and a vector transversal to the peptide pointing outwards the membrane.
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Lipid Analyses:


Area per lipid
In this system both leaflets have the same number of lipids, thus the values for their APL are overlaping in the plot
...

Density maps:
2D-density maps of lipids around the peptide along XY and YZ axis, calculated for each lipid type along the last microsecond.


Lipid-Peptide Analyses:


z-Position
Z-coordinate, averaged for differetn parts of the the system: peptide, membrane, first and last backbone (BB) residues and upper of lower leaflet lipids’ headgroups (HGs).
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Minimum distance
Minimum distance (nm) between the peptide backbone and the lipids (headgroups and tailgroups).
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Number of contacts
Number of contacts between the peptide backbone and the water or the lipids separated by lipid headgroups (HG) or lipid tails, using a cut-off of 0.6 nm.
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Lateral density
Lateral density for the different components of the system: headgroups, tail groups, peptide and water.
...