[ccp4bb] How to distinguish between Na+ and Mg2+?

2011-12-01 Thread Florian Sauer
Dear CCP4BBers, I'm refining the structure of a Ca-binding protein with several EF-hands against 2.2A data. There is clear density for an ion in several EF-hands coordinated by Asp/Glu, Ser, one backbone O and one water (coordination number 5 and 6). Ca2+ can be excluded as there are no

Re: [ccp4bb] How to distinguish between Na+ and Mg2+?

2011-12-01 Thread Robbie Joosten
: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Florian Sauer Sent: Thursday, December 01, 2011 19:40 To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] How to distinguish between Na+ and Mg2+? Dear CCP4BBers, I'm refining the structure of a Ca-binding protein with several EF