Trajectory SP768

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: 19190
Time step (fs) : 25
Software: GROMACS 2021.5
Supercomputer: Finisterrae III CESGA
Peptides: P174 AP03427
Lipids: POPC
Heteromolecules:
Ions: CL
Water model: W

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Sequence :
LWKTLLKNVGKAAGKAVLNAVTDMVNQ
Total charge (e): +3
Number of residues: 27
By amino acid:
  Basic: 4
  Acidic: 1
  Hydrophobic: 16
  Polar: 6
Electrostatic Dipolar Moment (e nm): 9.75
Longitudinal (e nm): 9.58
Transversal (e nm): 1.78
Hydrophobic Dipolar Moment (nm): 5.66
Longitudinal (nm): 5.59
Transversal (nm): 0.89
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: POPC (Healthy mammal)

POPC
2-oleoyl-sn-glycero-3-phosphocholine
Total charge (e): 0

  See POPC 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): 0.64425900 ± 0.00104381
Upper leaflet (nm2): 0.64425900 ± 0.00104381
Lower leaflet (nm2): 0.64425900 ± 0.00104381
Average Z coordinate
Peptide (nm): 8.5521900 ± 0.0318595
First Residue (nm): 8.5410800 ± 0.0558422
Last Residue (nm): 8.8442000 ± 0.0415501
Membrane (nm): 6.8116000 ± 0.0107978
Upper leaflet Head Group (nm): 8.7723400 ± 0.0125259
Lower leaflet Head Group (nm): 4.85387000 ± 0.00902925
Bilayer Thickness (nm): 3.918470 ± 0.015441
Peptide insertion (nm): -0.2201520 ± 0.0342334
Contacts
Peptide - Water: 32.252500 ± 0.747472
Peptide - Head groups: 15.592500 ± 0.276203
Peptide - Tail groups: 15.387500 ± 0.308055
Tilt (°): 85.888300 ± 0.940009
PepDF:
5(ns):  CVS
Displacement (nm): 0.5960900 ± 0.0252521
Precession(°): -0.555646 ± 1.199590
50(ns)  CVS
Displacement (nm): 1.8700400 ± 0.0936688
Precession(°): -4.32992 ± 3.73406
100(ns)  CVS
Displacement(nm): 3.103650 ± 0.129307
Precession(°): -8.87384 ± 4.76959
200(ns)  CVS
Displacement(nm): 4.947700 ± 0.211547
Precession(°): -15.0817 ± 7.5129

  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
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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.
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