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. 2008 Feb 29;190(9):3098–3109. doi: 10.1128/JB.01709-07

FIG. 5.

FIG. 5.

Transmission electron micrographs of A. actinomycetemcomitans strains stained with 2% phosphotungstic acid (pH 7). (A) emaA mutant strain complemented with pKMΔ70-206 (a plasmid containing a deletion corresponding to amino acids 70 to 206). (B) emaA mutant strain complemented with pKMΔ207-386 (a plasmid containing a deletion corresponding to amino acids 207 to 386). The arrows indicate the ending of the EmaA appendages, showing that the ellipsoidal endings are absent in the deletion mutants. Scale bar, 100 nm.