FIG. 1.
Combinations of internal Gag deletions with a terminal p6 deletion. The names of the Gag cleavage products (MA, CA, SP1, NC, SP2, and p6) are indicated. The shaded region within CA marks the MHR. The black box at the N termini of the constructs represents the first 10 amino acids from pp60v-src. The squiggle depicts the fatty acid myristate. The black rectangles above the NC sequence mark the cysteine-histidine boxes. Numbers below the Gag molecules refer to amino acid residues. The properties of the Gag mutants with regard to particle release and size distribution are summarized in columns at the right of the figure: N, homogeneous particles of normal size; L, homogeneous particles of large size.