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Hello Xiaotian-- > Hi, I am a new user of xplor. Now I want to use it to calculate the > structure of G-quadruplex. But I do not know how to add the planarity > constraints into the structure calculation. I wonder whether there is > someone who the similar work and could share his experience. If a > modified topology file is needed during the calculation, anyone could > share it with me. Unless you plan on modelling the cation, I don't believe a modified topology file will be necessary. For a detailed XPLOR protocol, you might directly contact one of the NMR groups which have already studied this system. I encourage anyone reading this who has experience with this system to contribute comments. thanks-- Charles -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Processed by Mailcrypt 3.5.8+ <http://mailcrypt.sourceforge.net/> iD8DBQFHaYVaPK2zrJwS/lYRAh9hAJ9gcjweioVlTLJ4DYaFUQ1siBrVigCeL+jO s9uJpRhMO8uASkJy+U2uJVE= =N0+x -----END PGP SIGNATURE-----
