Figure 3

Structural comparison of four lentiviral matrix protein. The superimposition of the matrix proteins of FIV (red) with (A) HIV (PDB ID: 1HIW, blue), (B) SIV (PDB ID: 1ECW, green) and (C) EIAV (PDB ID: 1HEK, yellow) matrix proteins. The N- and C-termini are indicated, and the helices are numbered h1 to h5 as in Figure 2A. Black arrows highlight the structural differences at the C-terminal end of the matrix proteins.