Figure 4.

Multiple sequence alignment of deduced amino acid residues of the integrase (IN) domain of Sinbad from Schistosoma mansoni and eight other Pao-BEL family retrotransposons. The position of the active site residues are indicated with asterisks above and bold face letters (D, D or E) below, as are the key Cys (C) and His (H) residues of the zinc-finger motif. Identical and chemically similar residues are boxed and shaded.

Copeland et al. BMC Evolutionary Biology 2005 5:20   doi:10.1186/1471-2148-5-20
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