Files in this Data Supplement:

• Supplemental file 1 - Fig. S1 (Effect of shorter incubation time on infectivity of HIV-1 previously incubated at various temperatures.)
  Zipped TIF file, 204 K.
• Supplemental file 2 - Fig. S2 (Effects of longer incubation times on infectivity of HIV-1 previously incubated on ice.)
  Zipped TIF file, 377 K.
• Supplemental file 3 - Fig. S3 (Effects of room-temperature incubation on cold inactivation.)
  Zipped TIF file, 713 K.
• Supplemental file 4 - Fig. S4 (Effect of truncation of the gp41 cytoplasmic tail on sensitivity of the HIV-1 envelope glycoproteins to cold inactivation.)
  Zipped TIF file, 360 K.
• Supplemental file 5 - Fig. S5 (Sensitivity of cold-inactivated viruses to chemokine receptor inhibitors.)
  Zipped TIF file, 789 K.
• Supplemental file 6 - Fig. S6 (Susceptibility to cold-induced inactivation and inherent exposure of gp41 epitopes in the presence and absence of the H66N mutation.)
  Zipped TIF file, 262 K.
• Supplemental file 7 - Fig. S7 (Effect of a freeze-thaw on the exposure of a gp41 epitope following incubation in the cold or at room temperature.)
  Zipped TIF file, 462 K.
• Supplemental file 8 - Legends to supplemental figures
  Zipped MS Word document, 6 K.