Dear All,

I simply want to create a PDB file for adenosine from the existing monomer library entry ADN.cif. Normally I do this using COOT (get monomer) but when I try this I get the following error:

: _lib_update       12/05/10
:  ------------------------------
:  ERROR: number of monomers >  3000 /lib. limit/
:  Change parameter MAXMLIST in "lib_com.fh"
exit status: 0
INFO:: libcheck status: 0
libcheck failed to write the output cif file.


I then try using LIBCHECK standalone to get the PDB file. I get the same error if I use the FILE_CIF input keyword and give it the filename for ADN.cif, no surprise, as this is (I assume) what COOT does.

I then copy over ADN.cif to my local directory, run LIBCHECK again and use the FILE_L keyword to specify the (local) ADN.cif file. I then get the error:

  ERR: item _chem_comp_tree.atom_id :O2'  not found in the atom list
  MON,BLOCK :ADN     data_comp_ADN

suggesting that there is an error in ADN.cif !

I know that I should really correct the dimension error that I first got in COOT, but Phil Evans looks after our CCP4 installation and he is away and I'm not sure where to start.

Does anyone understand why using FILE_L command does not work, or indeed any other way that I can produce the PDB file from the cif file ?

Thanks

Andrew

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