Reference:
Zhu P, Winkler H, Chertova E, Taylor KA, Roux KH (2008) Cryoelectron Tomography of HIV-1
    Envelope Spikes: Further Evidence for Tripod-Like Legs. PLoS Pathog 4(11): e1000203.
 
The folders in 1596_class_maps.zip  consist of aligned and classified HIV-1 Env spikes maps using various alignment
and classification combinations as shown in figure 3 of the reference. Please refer back to
the reference for details.
 
A_WW: Panel A
      Aligned: whole, Classified: whole
B_WH: Panel B
      Aligned: whole, Classified: head
C_WL: Panel C
      Aligned: whole, Classified: legs
D_HH: Panel D
      Aligned: head,  Classified: head
E_LL: Panel E
      Aligned: legs,  Classified: legs
 
In each subfolder, 
*-cls-[1-8].map: eight classes produced for each combination