On Thu, 20 Jan 2005, Eric Martz wrote: > Because the PDB format only has 5 columns for atom serial number, a PDB > file is limited to 99,999 atoms. There are some larger structures, notably > the ribosome (1GIX + 1GIY) that had to be split into more than one PDB file.
Yah, that and the one letter chain ID field isn't enough for 50+ molecules (proteins, tRNA, rRNA), although the use of a SEGID field can over come this. Does Jmol read that and if so is it selectable? This field can hold 4 characters to my knowledge. It is commonly used with the x-ray structure package Crystallography and NMR System (CNS). 1GIY and 1GIX won't work for surfaces unfortunately. They are phosphorus/carbon backbone atom only structures. I have generated all the symmetry mates for a Rhinovirus though. This has about twice as many atoms as a ribosome (376k atoms). If anyone is interested let me know and Ill send you the file to experiment with. It is a kind of a pain to generate all the symmetry mates from the PDB they provide (4RHV). Albion Albion E. Baucom http://rna.ucsc.edu/albion ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________ Jmol-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jmol-users
