[Xplor-nih] Prepending ACE to a sequence

[Tyler Reddy]

Hello,

I've been trying to process a peptide with an N-terminal acetylation, however,
simply "prepending" the .seq file with an ACE "residue" (as suggested in the
initial response below) produces an error. Is there something more to this
"prepending" process than just sticking ACE in the .seq file?

Here is the error output from the X11 prompt:

Exception exceptions.AttributeError: "'NoneType' object has no attribute
'settrace'" in <bound method XplorWrapPtr.__del__ of <C XplorWrap instance at
_40f04003_p_XplorWrap>> ignored

Thanks!

Tyler


Hi Jan--


Apologies if this is already somewhere fairly obvious (I certainly can't seem to
find it!) but is there any easy way, along the lines of the C-terminal
amidation flag for seqToPSF, to add an acetyl group to an N-terminus?


The current way of doing this is to prepend the sequence with the
``residue name'' ACE.

hope this helps--
Charles