Notes on PDB ATOM record format BMERC : needle tools : File formats : PDB ATOM format These are just my summary notes with real-world examples (and counter-examples!). For more information, see the detailed ATOM record specification from the PDB Contents Guide Version 2.2 (draft) of 16-Dec-1996 at the Protein Data Bank. Table of contents Notes on PDB ATOM record format Table of contents ATOM rec