Re: [ccp4bb] New version of SHELXE

2017-08-13 Thread George Sheldrick
A new version 2017-1 of SHELXE is available for downloading from the SHELX server. See /recent changes/ on the SHELX homepage at shelx.uni-goettingen.de for details. The most important changes (contributed by Isabel Uson) should extend the chain tracing to lower resolution. Since this requires

Re: [ccp4bb] "reset" a structure before re-refinement

2017-08-17 Thread George Sheldrick
Dear Graeme, The WIGL instruction in SHELXL does exactly that, and has some useful options. http://shelx.uni-ac.gwdg.de/SHELX/shelxl_html.php#WIGL Best wishes, George On 08/17/2017 05:17 PM, Graeme Winter wrote: Dear All, Is there a protocol out there to gently perturb atomic positions so

Re: [ccp4bb] New version of SHELXE

2017-08-28 Thread George Sheldrick
Dear Carlos, You are correct. I reinstalled CCP4 two days ago and also got version 0044 and that did not incude the new shelxe_2017-1. However the new shelxe is definitely on the shelx server. It is a single statically linked executable with no dependencies (!) so you can simply replace the o

Re: [ccp4bb] Risk assessment for heavy atom soaking - examples?

2017-09-12 Thread George Sheldrick
Over 50 years ago, a Toepler pump that I had glass-blown myself developed a crack that caused several kilos of mercury to hit tha ceiling and give me a shower. Fortunately I did not then know how poisonous it was and suffered no ill-effects George On 12.09.2017 19:46, James Holton wrote: On

Re: [ccp4bb] AW: Another troublesome dataset (High Rfree after MR)

2017-10-16 Thread George Sheldrick
Dear James. What small molecule programs report often looks like: R1 = 0.1550 for 17413 Fo > 4sig(Fo) and 0.2058 for all 23715 data R1(Free) = 0.2208 for 1938 Fo > 4sig(Fo) and 0.2766 for all 2635 data from a well-known small molecule program being (mis)used to refine a protein. T

Re: [ccp4bb] coot shelxl problem

2017-11-02 Thread George Sheldrick
Dear Abhishek, Maybe Paul had forgotten that shelxl was designed to read 80 column punched cards. To check against overrun it was checking that column 80 is a blank. I may be able to fix this in the next version of shelxl. For the moment you will have to do some hand editing, e.g. using conti

[ccp4bb] New SHELX versions and email address

2018-03-13 Thread George Sheldrick
Here is another attempt from my old email address. I was not registered to use the email lists from my new address, but please use it in future! New versions of SHELXE, SHELXL and SHELXT and also Anna Luebben's program pdb2ins that provides a quick way of setting up a shelxl refinement given a

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