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Amino acid sequences of Sec7 domains of five ARF GEPs. The sequence of p200 is aligned with Gea1, cytohesin 1 (cyto), ARNO, and Sec7. Boxed residues are identical. Conservative differences are shaded. Consensus residues are identical in three or more sequences. Hyphens denote gaps introduced to maximize identity. Numbers in parentheses refer to position of the first amino acid in each Sec7 domain.
