News Finding: Bacteria-Killing Viruses Wield an Iron Spike:  A Single Iron Atom On An Amino-Acid Spike:  [image]
Paper Finding: Structure of Membrane-Piercing Spike polypeptide chains, which are about to be folded, in register; and it provides an increased stability to the tip structure once the protein has folded.
News Context: Bacteria-Killing Viruses Wield an Iron Spike:  A Single Iron Atom On An Amino-Acid Spike:  [image]
Paper Context: The iron ion is likely to have a dual function: it participates in the folding of gpV into a trimer by helping to keep the three Structure of Membrane-Piercing Spike polypeptide chains, which are about to be folded, in register; and it provides an increased stability to the tip structure once the protein has folded. Both phages P2 and f92 require calcium for infection.