Hi Sampath, Looks to me like you might have a hexamer with 32 symmetry in asymmetric unit. Ben
(I think if you were in the wrong space-group and the 3 fold was crystallographic the peak height on the chi =120 section would be higher?) "Sampath Natarajan" <[EMAIL PROTECTED]> Sent by: "CCP4 bulletin board" <CCP4BB@JISCMAIL.AC.UK> 21-Nov-2008 07:18 Please respond to "Sampath Natarajan" <[EMAIL PROTECTED]> To CCP4BB@JISCMAIL.AC.UK cc Subject [ccp4bb] Self rotation function calculation Dear All, I have a problem in analyze the self rotation function. My crystal is belongs to C2 space group. According to Mathews calculation, this crystal shows 7 or 8 molecules in the asymmetric unit. But I couldn't conclude the number molecules in the A.U. So I calculated the self rotation function using the program MOLREF. But Still I am not able to interpret the results using that. Here I'm attaching the figures which I calculated the self rotation function with different chi angles. Could anyone help me to find the symmetry of molecules in the A.U? It will be great helping me to solve the structure. Thanking you, Sincerely Sampath [attachment "self rotation1.png" deleted by Benjamin D Bax/PharmRD/GSK] [attachment "self rotation2.png" deleted by Benjamin D Bax/PharmRD/GSK] ----------------------------------------------------------- This e-mail was sent by GlaxoSmithKline Services Unlimited (registered in England and Wales No. 1047315), which is a member of the GlaxoSmithKline group of companies. The registered address of GlaxoSmithKline Services Unlimited is 980 Great West Road, Brentford, Middlesex TW8 9GS. -----------------------------------------------------------