(University of Groningen) The human glutamine transporter ASCT2 is upregulated in several forms of cancer. It is also the docking platform for a wide range of pathogenic retroviruses. A team of University of Groningen scientists have used cryo-electron microscopy to elucidate the structure of the protein, which may generate leads for drug development. The results were published in Nature Structural & Molecular Biology on 5 June.