How many polymer chains (protein or nucleic acid chains) are in the published PDB file (the asymmetric unit)?
(Both Proteopedia and FirstGlance obtain the published PDB file from the RCSB Protein Data Bank.) (If the number of chains is not obvious, in FirstGlance in Jmol, click on the PDB button, or in Proteopedia, click on RCSB under Resources. At RCSB-PDB, click on the Biology and Chemistry Tab.) • A snapshot of your molecule from FirstGlance in Jmol. How to take a snapshot is also linked at the bottom left (scroll down) in FirstGlance in Jmol. Be sure to clearly label all snapshots and animations in your slides. Slide 2: • How many polymer chains are in the “biological molecule” according to the Probable Quaternary Structure server? (In FirstGlance in Jmol, click on the PQS button.) • Side-by-side snapshots (in FirstGlance in Jmol) of the published PDB file from RCSB, and the result at PQS. (Even if they have the same number of chains, they may not be in the same conformation. More..) To display a PQS result in FirstGlance so you can take a snapshot: • Macs: Control-Click (Windows: Right-Cl
