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Comparison of Gag proteins of various clones from the thymus and inguinal lymph node of Pt573 and Pt583, respectively. The amino acid sequence of SIVsmE543-3 is shown on the top in single-amino-acid code, and clones from Pt573 and Pt583 are shown below. The position of the various Gag proteins is indicated. Amino acid substitutions are indicated in single-amino-acid code, and identity is indicated by a dash.
