Of course, should have tried that BUT, it appears PROTSKIN has problems everytime it encounters a gap. It now complains about res. 296 in the same fashion (287-295 are missing from the coordinates....)

There must be a way around this...I could split all the different parts (ie. those separated by gaps) into different files but I expect the smaller parts will align poorly with the sequences or I'll get a similar error again....

( P.S. sorry !, posted to COOT again by accident, have fixed my address book..)

Charlie Bond wrote:
Iain, I've never used protskin, but can you not just mutate the offending residue in your PDB file to get protskin to run (eg in coot or pdb-mode). Then afterwards you can manually alter the B-factor for that residue to what it should actually be and then run grasp etc.

Cheers,
Charlie

Iain Kerr wrote:
I tried that. My protein has a mutation at res. 141, so it said:

*Error at residue 141 :
The sequence in your PDB file does not match your BLAST query sequence.
*Here is the plain sequence alignment <http://www.mcgnmr.ca/ProtSkin/tmp/01232-sequence_alignment> derived from it.

I deleted res. 141 and re-ran but:

*Error at residue 142 :
The sequence in your PDB file does not match your BLAST query sequence.
*Here is the plain sequence alignment <http://www.mcgnmr.ca/ProtSkin/tmp/01232-sequence_alignment> derived from it.

and 142 is correctly assigned !

This looked like it was going to work !

Iain


Mark Brooks wrote:
Hi,

did you try Protskin? (http://www.mcgnmr.ca/ProtSkin/)
Its a lot less hassle than Espript, and makes Grasp input files as
well as for Pymol

Good luck,

Mark

On 31/01/07, Iain Kerr <[EMAIL PROTECTED]> wrote:
I'm trying to colour a molecular surface by sequence conservation...(sorry,
I think I incorrectly posted this to COOTBB the other day)

I've figured out how to do it in GRASP - modify the B-factor column in the
PDB file to represent the percentage conservation and then colour the
surface by B-factor. I know ESPRIPT will make the modified file, but I'm
having trouble generating the correct one..

I am providing ESPRIPT (expert mode, %Equivalent' scoring function) with a CLUSTALW alignment (Aligned sequences > Main alignment file) and a PDB file
('Aligned sequences' > 'Supplementary pdb' file). I get the error:

'Fatal error: wrong format in PDB file.'

..and the values in the B-factor (%Equivalent) column are all either 99 or
100 which is nonsense according to the alignment.

Has anyone come across this. I don't see anything wrong with my PDB file..

Thanks,
Iain





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