The matter as to what improvements are to be made to HOLE is up to the users. You are welcome to make improvements subject to the conditions set out in section 1.0. Please also try to remain within the programming philosophy of the rest of the program. In particular comments are very important to the usability of a piece of code and if a program hits an error it should produce a sensible error message and "die" elegantly not cause the operating system to produce an unintelligible message and useless "core" file. Please send me details of any changes made by email.
If you use a molecular graphics program other than those catered for by program qpt_conv then an obvious need is to convert the molecular graphics output of hole (a quanta format .qpt file) into to a suitable form. I have tried to support the most common programs but if yours is not amoung them then try writing a new subroutine for qpt_conv.
Work is in progress to adapt the HOLE procedure to allow the visualization of
paths of escape for ligands from the active site of proteins - I'll let users known
when this becomes available. It may also be possible to incorporate some
kind of solid rendering facility for the surfaces.
Please send me a copy of any publication using HOLE so that it can be added to
this list.
Must be updated!%%%
10.2 Applications to date
this sub-section needs updating ***
Gramicidin A
Paper gives a description of the
method. Application is made to the four experimentally determined
structures of gramicidin A. These are the NMR structure for the channel
form (determined by Arseniev A.S. et al. (1985) FEBS Lett. 186:168-174)
and X-ray crystal structures for two different antiparallel double-helical
pores (due to Langs, D.A. (1988) Science 241:188-191 and Wallace, B.A.
& K. Ravikumar. (1988) Science 241:182-187).
Annexin V
Preliminary application of HOLE to human annexin V crystal
structure due to Huber et al. (1992) J. Mol. Biol. 223:683-704. Reveals
the complicated topology of the pore through this interesting molecule.
Alamethicin
Bacteriorhodopsin
Porin
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