Charybdotoxin, a toxin produced by scorpions, blocks a K+channel by binding in a lock-and-key fashion to the mouth of the channel and presenting a lysine amino group, which serves as a K+mimic in the selectivity filter.
The details of how the enzyme DNA polymerase α initiates the polymerization of nucleotides in DNA replication, a critical step in the synthesis of new chromosomal DNA, have been revealed in atomic detail.
RL Perera, R Torella, S Klinge, ML Kilkenny, JD Maman, L Pellegrini
Electron cryo-microscopy has been used to determine the structure of Chikungunya virus-like particles and to provide new insights into their interactions with four different antibodies.
S Sun, Y Xiang, W Akahata, H Holdaway, P Pal, X Zhang, MS Diamond, GJ Nabel, MG Rossmann
Structure-function analysis of the super elongation complex formed when HIV replicates inside cells reveals that the HIV-1 Tat protein binds to a cleft between P-TEFb, an enzyme that is involved in normal transcription, and AFF4, a protein that is used to build the super elongation complex
U Schulze-Gahmen, H Upton, A Birnberg, K Bao, S Chou, NJ Krogan, Q Zhou, T Alber
Long-lived intermediate states formed by glycoprotein catalysts are an essential part of the process used by influenza virus particles to infect cells.
T Ivanovic, JL Choi, SP Whelan, AM van Oijen, SC Harrison