[sharp-discuss] H32 SHARP-ARP/wARP-Refmac problem?

Clemens Vonrhein vonrhein@globalphasing.com
Tue, 10 Dec 2002 11:37:13 +0000


Dear Ole,

please note, that the current version of SHARP/autoSHARP (3.0.14) is
not tested yet under CCP4 4.2.2! I'm working on porting CCP4 4.2.2 to
my set of patches (see
http://www.globalphasing.com/people/vonrhein/ccp4/) and then get a new
version of SHARP/autoSHARP out that will be tested with 4.2.2.

However, there might be a problem/feature with H32 - since this is a
fairly new change to several programs (previously, it was called R32
even if hexagonal setting). But if this was a problem I would think
that REFMAC should stop much earlier. So my guess is, that the refmac
version you're running has a problem. Did you get in contact with
Garib about that?

Also, you might want to use the standalone ARP/wARP 6.0
version. Although I tried to optimize the interface to the various
ARP/wARP 6.0 programs to perform optimally with the SHARP output,
there might still be a problem.

Hope that helps.

Cheers

Clemens

On Tue, Dec 10, 2002 at 11:22:04AM +0100, Ole Kristensen wrote:
> In a current case, I got so far as to run the arp/warp step from autosharp
> (SHARP 2.0.0, Sushi 3.0.14). Despite good phases I got stuck. Here is the
> log output:
> MTZ file	:
> /home/sharp/users/olek/None.sharp/logfiles/tig118.5/eden_flat_34.5pc.mtz
> 
> $warpbin	:	/a/xtal/linux/arp_warp_6.0/bin/Linux	
> Cell	:	71.6440 71.6440 375.4090 90.0000 90.0000 120.0000	
> Spacegroup	:	H32 (155)	
> Wilson B-Factor	:	38.419	
> Protein size	:	2952	
> Sequence file	:	<wARP_34.5pc/seq.pir>	
> Resolution	:	30.000 2.30	
> Asymmetric unit	:	0.00000 1.00000 0.00000 1.00000 0.00000 1.00000	
> 2. Generating "warp.par" for ARP/wARP version 6.0 
> (details) <wARP_34.5pc/warp.par> (directory index) <wARP_34.5pc> 
> 3. Running "arpwarp.sh"
> 1. reading warp.par (for ARP/wARP version 6.0)
> 2. Building free atoms model
> 2.1 calculating initial map
> 2.2 expanding map to ARP limits
> 2.3 building initial model
> Note: Had to go as low as 0.80 sigma, to complete atoms search.
>  
> Note: Remove atoms if below 1.0 sigmas in 2mFoDFc map.
>       Add atoms in density above 3.2 sigmas in mFoDFc map.
>       A maximum of 100 ARP refinement cycles will be run in total.
>       Rebuilding of the model will happen every 10 cycles.
> 3. running warpNtrace loop
>  
> Note: using fixed weight in REFMAC of 0.5 - check geometry afterwards!
>  
>  
> Note: automatically adjusting phase blurring in REFMAC
>  
>   16247 reflections (   99.99 % complete ) and 0 restraint used, for
> refining 3310 atoms.
>   Observations/parameters ratio is 1.23 (~1.23 with restraints).
> 
>   Starting model : R = 0.341 (Rfree = 0.331)
> 
>   Cycle   1 : After refmac :   R = 0.314 (Rfree = 0.320) 
>               Found 21 (21 requested) and removed 15 (16 requested) atoms.
>   Cycle   2 : After refmac :   R = 0.297 (Rfree = 0.321) 
>               Found 21 (21 requested) and removed 2 (16 requested) atoms.
>   Cycle   3 : After refmac :   R = 0.286 (Rfree = 0.324) 
>               Found 21 (21 requested) and removed 5 (18 requested) atoms.
>   Cycle   4 : After refmac :   R = 0.278 (Rfree = 0.322) 
>               Found 22 (22 requested) and removed 9 (21 requested) atoms.
>   Cycle   5 : After refmac :   R = 0.271 (Rfree = 0.321) 
>               Found 22 (22 requested) and removed 10 (22 requested) atoms.
>   Cycle   6 : After refmac :   R = 0.265 (Rfree = 0.317) 
>               Found 22 (22 requested) and removed 13 (22 requested) atoms.
>   Cycle   7 : After refmac :   R = 0.260 (Rfree = 0.315) 
>               Found 22 (22 requested) and removed 20 (22 requested) atoms.
>   Cycle   8 : After refmac :   R = 0.255 (Rfree = 0.312) 
>               Found 22 (22 requested) and removed 12 (22 requested) atoms.
>   Cycle   9 : After refmac :   R = 0.253 (Rfree = 0.313) 
>               Found 22 (22 requested) and removed 21 (22 requested) atoms.
>   Cycle  10 : After refmac :   R = 0.249 (Rfree = 0.309) 
>               Found 22 (22 requested) and removed 7 (22 requested) atoms.
> 
>   Building Cycle 1
>    Round 1 : 291 peptides in 22 chains.
>    Round 2 : 312 peptides in 14 chains.
>      Chains 14, Residues 298 [out of 369], Connectivity Index 0.91
> 
>   Cycle  11 : After refmac :   R = 0.339 (Rfree = 0.384) 
>               Found 16 (16 requested) and removed 8 (8 requested) atoms.
>   Cycle  12 : After refmac :   R = 0.317 (Rfree = 0.375) 
>               Found 16 (16 requested) and removed 8 (8 requested) atoms.
>   Cycle  13 : After refmac :   R = 0.303 (Rfree = 0.366) 
>               Found 16 (16 requested) and removed 8 (8 requested) atoms.
>   Cycle  14 : After refmac :   R = 0.293 (Rfree = 0.359) 
>               Found 16 (16 requested) and removed 8 (8 requested) atoms.
>   Cycle  15 : After refmac :   R = 0.283 (Rfree = 0.348) 
>               Found 16 (16 requested) and removed 8 (8 requested) atoms.
>   Cycle  16 : After refmac :   R = 0.277 (Rfree = 0.345) 
>               Found 16 (16 requested) and removed 8 (8 requested) atoms.
>   Cycle  17 : After refmac :   R = 0.270 (Rfree = 0.323) 
>               Found 17 (17 requested) and removed 8 (8 requested) atoms.
>   Cycle  18 : After refmac :   R = 0.263 (Rfree = 0.321) 
>               Found 17 (17 requested) and removed 8 (8 requested) atoms.
>   Cycle  19 : After refmac :   R = 0.258 (Rfree = 0.317) 
>               Found 17 (17 requested) and removed 8 (8 requested) atoms.
>   Cycle  20 : After refmac :   R = 0.251 (Rfree = 0.316) 
>               Found 17 (17 requested) and removed 8 (8 requested) atoms.
> 
>   Building Cycle 2
>    Round 1 : 285 peptides in 14 chains.
>    Round 2 : 307 peptides in 13 chains.
>      Chains 10, Residues 285 [out of 369], Connectivity Index 0.92
>  
> Note: had to fix PDB file "./files/reshuffle_cycle20.pdb" for RES. numbering
> - please check programs!
>  
> ERROR : program terminated in REFMAC5 (see refmac_cycle21.log
> <wARP_34.5pc/refmac_cycle21.log>)
> 
> The ./files/reshuffle_cycle20.pdb looks okay. Refmac seems to be the
> problem. I tried
> both the refmac5 version from ccp4-4.2.2 and garib's latest version. Here,
> is a bit
> of my latest attempt:
> ###############################################################
>  ###############################################################
>  ###############################################################
>  ### CCP4 4.2: Refmac_5.2.00      version 5.2.00    : 31/10/01##
>  ###############################################################
>  User:   Run date:  9/12/02  Run time:23:43:19
> ......
> Data line--- MAKE HYDR N
>  Data line--- MAKE CHECK 0
>  Data line--- LABI FP=FPsha SIGFP=SIGFPsha FREE=FreeR_flag HLA=HLAdm
> HLB=HLBdm HLC=HLCdm HLD=HLDdm
>  Data line--- LABO FC=FC PHIC=PHIC      FWT=2FOFCWT      PHWT=PH2FOFCWT
> DELFWT=FOFCWT PHDELWT=PHFOFCWT
>  Data line--- REFI RESOLUTION 30.000 2.30 TYPE RESTR
>  Data line--- REFI RESI MLKF PHASed SCBLurred 0.34
>  Data line--- REFI BREF ISOTROPIC METH CGMAT
>  Data line--- WEIG MATRIX 0.5
>  Data line--- DAMP 1.0 1.0
>  Data line--- SCAL TYPE  BULK LSSC ANIS  FIXBulk
>  Data line--- SCAL MLSC  FIXBulk
>  Comment line--- ! maybe only at later stages?
>  Data line--- SOLVENT YES
>  Data line--- NCYC 1
>  Data line--- MONI MANY
>  Data line--- BLIMI 2 80
>  Data line--- BINS 20
>  Data line--- VDWR SIGMA DUMMY 50.0 INCREMENT DUMMY -1.0
>  Data line--- VDWR 0.0
>  Data line--- END
> .....
> .....
>      CGMAT cycle number =      1
> Too many atoms in one brick.
> Maximum allowed in one brick =         60
> Check symmetry, cell dimensions
> ===> Error: CREATE_NET failed
>  Refmac_5.2.00:  CREATE_NET failed
>  Times: User:       5.0s System:    0.7s Elapsed:    0:13
> 
> Any ideas about how to get around this? I was wondering if it is related to
> the asymmetric unit being defined as:
> Asymmetric unit	:	0.00000 1.00000 0.00000 1.00000 0.00000 1.00000	
> 
> Clemens has previously pointed out that one could possibly change the
> settings in
> $BDG_home/database/lists/symm.dat. Will it work to change the field 10 for
> spacegroup
> H32 to something smaller than the 0 1 0 1 0 1 limits distributed?
> When I simply take the starting file eden_flat_34.5pc.mtz and run arpwarp
> just from the
> ccp4i with default settings a smaller asu seems to be used and thing run
> without error.
> 
> 
> Best regards,
> Ole Kristensen
> Denmark
> 
> 
> 
> 
> 
> 
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