On 15 May 2009 at 21:19, Aidar Mahmutov wrote: > Now, I'm just interesed in "groups". For what reason it exists?
A "group" is a group of atoms with a common group ID. They have a meaning in proteins and nucleic acids, where they are residues (amino acids and nucleotides, respectively). In addition, other non-protein and non-nucleic parts of the model are also assigned groups. For example, cofactors, ions, prosthetic groups and water molecules. All these are called "hetero". Each group has a name (the standard 3-letter amino acid abbreviation, or the standard one or two-letter nucleotide: A T G C U DA DT DG DC) and a number which usually is its order in the sequence of the chain. Hetero groups also have a name (for many of them, standardized by the PDB) and may have a number which is not significant in terms of sequence but helps to identify or select them separately. In file formats different from pdb or cif, there are no groups as far as I know. ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Jmol-developers mailing list Jmol-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jmol-developers
