Hi, I have a question about how to join two atoms together so that in Pymol a bond is drawn between them. I have 2 sugar molecules that are covalently bound, but in the the PDB they are separate sugar molecules and they need to be joined together by a single bond. Do I have to annotate the PDB file with something like "CONNECT" or "JOIN" or "LINK"? These are the two atoms I'd like to join. ATOM 19317 C2 SIA Y 1 20.503 35.557 43.691 1.00 22.97 C ATOM 19387 O9 SLB Z 1 21.630 36.539 45.311 1.00 28.53 O Thanks, Chris -- Dr. Christopher Browning Post-Doctor to Prof. Petr Leiman EPFL BSP-416 1015 Lausanne Switzerland Tel: 0041 (0) 02 16 93 04 40