What's the 'proper' way to name nucleotides in Coot? (RNA)

thanks

FR

On Sep 24, 2009, at 9:43 AM, Bernhard Lohkamp wrote:


My (educated) guess is that Coot doesnt recognise your nucleotides as
such and hence doesnt find any atoms to do the lsq superposition with.
The different nucleotide name 'conventions' strike again....

B

***************************************************

Dr. Bernhard Lohkamp
Assistant Professor
Div. Molecular Structural Biology
Dept. of Medical Biochemistry and Biophysics (MBB)
Karolinska Institutet
S-17177 Stockholm
Sweden

phone: (+46) 08-52487673
fax:   (+46) 08-327626
email: [email protected]

----- Original Message -----
From: Francis E Reyes <[email protected]>
Date: Thursday, September 24, 2009 4:54 pm
Subject: [COOT] NCS ghosts and map broken?
To: [email protected]

Hi all

It seems that adding ncs ghosts and then ncs maps is broken for my
model / coot combo.

Coot is at ver 0.6-pre-1 rev 2334.

Thanks!






This is what phenix.simple_ncs_from_pdb gives me
==================== Process input NCS or/and find new NCS
====================

NCS groups found in parameter file: 1
NCS group 0:
 reference= chain A and (resseq 1:39 or resseq 43:54 )
 selection= chain B and (resseq 1:39 or resseq 43:54 )

Automatic NCS search:


#                       simple_ncs_from_pdb
#
# Find ncs among chains in a PDB file

# type phenix.doc for help

Getting NCS from suggested chains:
RMSD for suggested group  ['A', 'B'] [[[1, 39], [43, 54]], [[1,
39],
[43, 54]]]  is  0.0121907468281

Updated/new NCS groups:
refinement.ncs.restraint_group {
 reference = chain 'A' and (resseq 1:39 or resseq 43:54 )
 selection = chain 'B' and (resseq 1:39 or resseq 43:54 )
}


                 ----------Building NCS restraints----------

NCS restraint group 1:
 NCS operator 1:
   Reference selection: "chain A and (resseq 1:39 or resseq 43:54 )"
       Other selection: "chain B and (resseq 1:39 or resseq 43:54 )"
   Number of atom pairs: 1103
   Rotation={{-0.500763, -0.865584, 0.000393409},
             {-0.865584, 0.500763, 0.000526561},
             {-0.000652788, -7.68463*^-05, -1}}
   Translation={{-53.5412}, {-30.8968}, {104.68}}
   Histogram of differences:
     0.000454 - 0.008521: 479
     0.008521 - 0.016588: 422
     0.016588 - 0.024655: 146
     0.024655 - 0.032722: 40
     0.032722 - 0.040790: 13
     0.040790 - 0.048857: 3
   RMS difference with respect to the reference: 0.013137




However when I try to overlay ncs ghosts and a ncs map I get this
from
coot
NCS_controller display chain toggled for imol 0 chain 1 state 1
%%%% ncs_control_display_chain
       There are 1 ghosts
        ighost: 0
       name: "NCS found from matching Chain B onto Chain A"
        chainid: B
        target chain id: A
        display_it_flag 1
%%%%%%%%% calling fill_ghost_info() from c-interface.cc
make_ncs_ghosts_maybe()
INFO:: NCS chain comparison 51/51
First atom of 1103 in first  selection 1/A/1/Gr/ P   altLoc ::
segid :A: pos: (-26.744,-11.257,24.195) B-factor: 106.43
First atom of 1103 in second selection 1/B/1/Gr/ P   altLoc ::
segid :A: pos: (-30.371,-13.357,80.514) B-factor: 107.38
WARNING - no residue for reference residue number 40 A
WARNING - no residue for moving molecule residue number 40 B
WARNING - no residue for reference residue number 41 A
WARNING - no residue for moving molecule residue number 41 B
WARNING - no residue for reference residue number 42 A
WARNING - no residue for moving molecule residue number 42 B
WARNING:: no points to do matching
  find_ncs_matrix returns (LSQ) junk
|         0,         0,         0|
|         0,         0,         0|
|         0,         0,         0|
(         0,         0,         0)
 INFO:: fill_ghost_info Constructed 1 ghosts
     Ghost 0 name: "NCS found from matching Chain B onto Chain A"
INFO:: installing ghost map with name :NCS found from matching
Chain B
onto Chain A
Done install_ghost_map
Reference matcher: 0 and 0
|6.953e-310,6.953e-310,6.953e-310|
|2.238e-314, 1.16e-315,1.334e-322|
|4.244e-314,4.032e-321,         0|
(2.144e-314,         0,         0)
inverse of reference matcher transformation:
|       nan,       nan,       nan|
|       nan,       nan,       nan|
|       nan,       nan,       nan|
(       nan,       nan,       nan)
boxing over uvw = (   -0.6365,   -0.3535,   0.08703) to uvw =
(    0.2349,    0.1764,    0.6158)
INFO:: There were 2 maps contributing to the average
INFO:: rescaling by 0.5
INFO:: 316520 out of 331872 (95.3741%) map points  were masked out
of
NCS average target volume,  chain A
INFO:: made 1 averaged map(s)
Map statistics: mean: nan st.d: nan
Map statistics: min: 0, max: 0
/sw/bin/coot: line 5: 66873 Segmentation fault      /sw64/bin/coot-
real "$@"






---------------------------------------------
Francis Reyes M.Sc.
215 UCB
University of Colorado at Boulder

gpg --keyserver pgp.mit.edu --recv-keys 67BA8D5D

8AE2 F2F4 90F7 9640 28BC  686F 78FD 6669 67BA 8D5D


---------------------------------------------
Francis Reyes M.Sc.
215 UCB
University of Colorado at Boulder

gpg --keyserver pgp.mit.edu --recv-keys 67BA8D5D

8AE2 F2F4 90F7 9640 28BC  686F 78FD 6669 67BA 8D5D

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