On 2010-04-04 07.13, Chih-Ying Lin wrote:

HI
THe command =>
g_sas_mpi -f 6LYZ-MD566500.xtc -s 6LYZ-MD566500.tpr -o
solvent-accessible-surface.xvg -oa atomic-sas.xvg -or residue-sas.xvg



In the solvent-accessible-surface.xvg =>
@ s0 legend "Hydrophobic"
@ s1 legend "Hydrophilic"
@ s2 legend "Total"
@ s3 legend "D Gsolv"

What does "Hydrophobic" mean here?
What does "Hydrophilic" mean here?
Does "Total = Hydrophobic+Hydrophilic" ?
What does "D Gsolv" mean here?
How can Gromacs define "Hydrophobic atoms" and "Hydrophilic atoms" ?

DG solv is computed according to Eisenberg et al. See scree output for reference.

Hydrophobicity is determined from the charge of an atom, not a very good method maybe, there you can supply an index file to determine which residues are hydrophobic yourself.


What does the Area unit mean ? => "Area (nm\S2\N)"

How about square nanometer for an area?



Thank you
Lin



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