I am getting an error when trying to run phenix.ligandfit in the version
phenix-1.6-289.

I am trying to get it to use an mtz generated via refmac <recoils at the
chorus of booooo's> and fit the ligand into the difference map.

If I run
phenix.ligandfit data=phaser_1.1_refmac1.mtz
model=phaser_1.1_refmac1.pdb ligand=ATP.pdb

It complains about my labels, saying..


*********************************
Sorry, input labels or map type unclear for
     phaser_1.1_refmac1.mtz
For lig_map_type=pre_calculated_map_coeffs supply F and PHI (optionally FOM)
(or 2FOFCWT and PH2FOFCWT)
For lig_map_type=fo-fc_difference_map supply one column label for FP
For lig_map_type=fobs_map supply one column label for FP

Please specify which lig_map_type above you would like and also specify the
necessary input column labels for your map like one of these samples:
input_labels="FP"
input_labels="2FOFCWT PH2FOFCWT"
input_labels="FP PHIB FOM"
*************************************

Looking at the documentation I tried getting PHENIX to tell me what labels
it could see by running that autosol query and it kindly told me that my
mtz file contained

************************
'FreeR_flag'
'F_New'
'SIGF_New'
'FC'
'PHIC'
'FC_ALL'
'PHIC_ALL'
'FWT'
'PHWT'
'DELFWT'
'PHDELWT'
'FOM'
**************************

so, I ran

phenix.ligandfit data=phaser_1.1_refmac1.mtz
model=phaser_1.1_refmac1.pdb ligand=ATP.pdb input_labels="DELFWT
PHDELWT"

and got the original message complaining that my labels are unclear.

I even used the GUI, it recognises all the pairs of labels giving me the
options to look at each map if I want and then..... complains that my
labels are unclear.

Clearly my labels are unclear, but I am now unclear how to proceed.

If anyone could suggest something please then I would be most
appreciative.  Clearly.

cheers


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