The development of molecules transported into tumor cells through GLUT3 to deliver toxic compounds or to block glucose transport activity might be facilitated by the recent X‐ray crystal structure determination of this transporter and other members of this family, GLUT1 and GLUT5 (Deng et al, 2014, 2015; Nomura et al, 2015). The gene discussed is SLC2A5; the disease is neoplasm.