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Dear Gang, By chance, P222 is your space group? It seems to be three perpendicular two-fold axes are passing through your central atom which makes them all fall in the same plane. From the density it looks more like a water in the center but anomalous density map should help. Good luck. Anthony ----------------------------------------------------- Dr. Anthony Addlagatta Center for Chemical Biology Indian Institute of Chemical Technology [IICT] Tarnaka, Hyderabad AP-500 607, INDIA Tel:91-40-27191812 Web: https://sites.google.com/site/chembioliict/home/dr-anthony-addlagatta-1 ---------- Original Message ----------- From: Gang Dong <[email protected]> To: [email protected] Sent: Mon, 4 Feb 2013 13:39:39 +0100 Subject: [ccp4bb] electron density assignment > *********************** > This message has been scanned by the InterScan for CSC SSM at IICT and found > to be free of known security risks. > *********************** > > Dear all, > > Here are some "hexmeric" densities we observed in our 1.6-A resolution > 2Fo-Fc map. They are located in between two dimers. Although 7 waters would > fit nicely in the densities, we are not sure whether they might be something > else (metals?). Any suggestions are welcome. Thanks! Gang > > __________________________________ > > Gang Dong, PhD > > Junior Group Leader > > Max F. Perutz Laboratories (MFPL) > > Dr. Bohrgasse 9/3 > > A-1030 Vienna, Austria > > Phone: +43-1-4277-61625 > > FAX: +43-1-4277-9616 > > http://www.mfpl.ac.at/mfpl-group/group/dong.html ------- End of Original Message ------- This Mail Scanned by ClamAV and Spammassassin
