Re: [ccp4bb] determining the point group and the space group

2018-04-30 Thread Thomas White
Hi Gihan, and anyone else who finds this interesting. Sorry for the late response: > how should one determine a point group and the space group of an > unknown crystal? > > I have a protein crystal with know unit-cell parameters. (these are > XFEL data so indexing wouldn't give the point and spa

Re: [ccp4bb] determining the point group and the space group

2018-04-20 Thread Gihan Ketawala
Thanks a lot for your input Best, Gihan > On Apr 19, 2018, at 9:56 AM, Rezaul Karim wrote: > > > > > On Thu, Apr 19, 2018 at 11:32 AM, Rezaul Karim > wrote: > I think Graeme's point is right. This is the work expert crystallographer. By > the way, DIALS could be used for XFEL data, as the

Re: [ccp4bb] determining the point group and the space group

2018-04-19 Thread Rezaul Karim
On Thu, Apr 19, 2018 at 11:32 AM, Rezaul Karim wrote: I think Graeme's point is right. This is the work expert crystallographer. By the way, DIALS could be used for XFEL data, as the program page & recent publication indicates. NB: I have no experience in XFEL data. Thanks,Rezaul S

Re: [ccp4bb] determining the point group and the space group

2018-04-19 Thread Daniel M. Himmel, Ph. D.
Thank you, Manfred. This is a very important point to remember. On Wed, Apr 18, 2018 at 9:13 PM, Gihan Ketawala wrote: > Hi, > my question is; > how should one determine a point group and the space group of an unknown > crystal? > > I have a protein crystal with know unit-cell parameters. (these

Re: [ccp4bb] determining the point group and the space group

2018-04-19 Thread graeme.win...@diamond.ac.uk
bulletin board On Behalf Of Gihan Ketawala Sent: 19 April 2018 02:13 To: ccp4bb Subject: [ccp4bb] determining the point group and the space group Hi, my question is; how should one determine a point group and the space group of an unknown crystal? I have a protein crystal with know unit-cell

[ccp4bb] AW: [ccp4bb] determining the point group and the space group

2018-04-19 Thread Herman . Schreuder
- Von: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] Im Auftrag von Gihan Ketawala Gesendet: Donnerstag, 19. April 2018 03:13 An: CCP4BB@JISCMAIL.AC.UK Betreff: [EXTERNAL] [ccp4bb] determining the point group and the space group Hi, my question is; how should one determine a point group and

Re: [ccp4bb] determining the point group and the space group

2018-04-18 Thread Weiss, Manfred
Sent: Thursday, April 19, 2018 5:50 AM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] determining the point group and the space group Gihan, The best way, in my opinion, to choose a suitable (and correct) space group is to combine your own understanding and knowledge with the available software

Re: [ccp4bb] determining the point group and the space group

2018-04-18 Thread Daniel M. Himmel, Ph. D.
Gihan, The best way, in my opinion, to choose a suitable (and correct) space group is to combine your own understanding and knowledge with the available software tools. I’ve never indexed XFEL data, so I don’t know if this data can be sampled and run through hkl2000/3000 or Mosflm to get some f

[ccp4bb] determining the point group and the space group

2018-04-18 Thread Gihan Ketawala
Hi, my question is; how should one determine a point group and the space group of an unknown crystal? I have a protein crystal with know unit-cell parameters. (these are XFEL data so indexing wouldn't give the point and space groups). I checked the PDB, but no luck the PDB structures have the d