That's essentially what I meant by "No" (using "othercell" (CCP4, equivalent to 
phenix.explore_metric_symmetry) to check
Phil


On 11 Feb 2011, at 15:30, Miller, Mitchell D. wrote:

> I find the phenix.explore_metric_symmetry utility to be useful 
> for cases like this.
> 
> phenix.explore_metric_symmetry --unit_cell="50.48 74.14 149.51 90. 94.16 90." 
> --space_group=p2 \
> --other_unit_cell="96.792 74.052 154.271 90. 90.060 90." 
> --other_space_group=p2
> 
> It shows that the volume ratio between target and lego cell is  1.98.
> When it tries to transform the smaller cell into the larger cell, it
> gives the following result -
> 
> Target unit cell :      74.1  96.8 154.3  90.1  90.0  90.0
> Lego cell :             50.5  74.1 149.5  90.0  94.2  90.0
> 
>               /   2    0    0  \  
> matrix :  M =  |   0    1    0  |  
>               \   0    0    1  /  
> 
> Additional Niggli transform:      -y,-x,-z
> Additional similarity transform:  x,y,z
> Resulting unit cell :   74.1 101.0 149.5  94.2  90.0  90.0
> Deviations :            -0.1  -4.3   3.1  -4.1   0.0   0.0
> Deviations for unit cell lengths are listed in %.
> Angular deviations are listed in degrees.
> 
> ---------
> So, with a 3-4% difference in length for 2 unit cell edges
> and a 4 degree difference on the one angle, they do
> not quite align.
> 
> Regards,
> Mitch
> 
> -----Original Message-----
> From: CCP4 bulletin board [mailto:[email protected]] On Behalf Of Wang, 
> Xiaoqiang
> Sent: Friday, February 11, 2011 6:04 AM
> To: [email protected]
> Subject: [ccp4bb] reindexing
> 
> Hi everyone,
> 
> We collected several derivative data sets which have different cell 
> parameters:
> (1) 50.480    74.140   149.510    90.000    94.160    90.000 p2
> (2) 96.792    74.052   154.271    90.000    90.060    90.000 p2
> For one of data sets, HKL2000 and Mosflm gave (1) and (2) as autoindex 
> solution, respectively.
> Is it possible to convert (1) to (2) by reindexing? 
> 
> Thanks,
> 
> Xiaoqiang 

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