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Schematic representation of Aap from S. epidermidis 5179 as deduced from the aap nucleotide sequence (GenBank accession number AY359815). Arrows indicate the positions of the primers used for amplification of domain B (For, forward; Rev, reverse). E, export signal; A, 564-aa domain; B, domain consisting of five (B1 to B5) complete 128-aa repeat units and one (Bp) 68-aa partial repeat unit; C, collagen triple-helix motifs; L, LPXTG motif containing cell wall anchor.
