In contrast, cells grown on TAG were covered with long, curved nanofibers, which only existed sparsely on cells grown on toluene, lactate, and ethanol. primers.(TIF) pone.0048830.s001.tif (335K) GUID:?A2C366E0-84D2-412A-A9F3-CBB738233486 Physique S2: Full-length AtaA amino acid sequence. Long repeat sequences can be classified into six groups colored light blue (243 aa), orange (58 aa), pink (115 aa), blue (86 aa), light green (79 aa), and green (130 aa) which minimize non-conserved amino acid residues. The non-conserved residues in each group are indicated by character types in strong font. Underlined characters show the amino acid residues that were expressed as a recombinant protein for generating anti-AtaA antibody.(TIF) pone.0048830.s002.tif (1.5M) GUID:?A700F88E-4E60-4036-90F3-65EE1DFCD40D Physique S3: Prediction of AtaA deficiency in coiled coils. The full-length amino acid sequence ABT-737 of AtaA was analyzed using COILS (http://www.ch.embnet.org/software/COILS_form.html) to determine the coiled coil probability score using a MTIDK matrix and a 28 residue windows. AtaA was compared with several common TAAs: YadA of sp. Tol 5 T1 (T1) and mutant (cells.(TIF) pone.0048830.s004.tif (753K) GUID:?48371586-668B-43EE-A376-6B48E8FE6935 Figure S5: Confirmation of the production of type 1 and Fil fimbrial component proteins by SDS-PAGE and their deduced fibers by TEM in the cells grown on ABT-737 toluene. Monomeric FimA protein was detected by SDS-PAGE, and the deduced type 1 fimbriae were observed around the cell surface of cells produced on triacylglycerol. Monomeric FilA protein was detected by SDS-PAGE, and the deduced Fil fimbriae were observed Rabbit Polyclonal to ETS1 (phospho-Thr38) around the cell surface of ori, replication origin in genus sp. Tol 5 exhibits an autoagglutinating nature and noteworthy adhesiveness to numerous abiotic surfaces from hydrophobic plastics to hydrophilic glass and stainless steel. Although previous studies have suggested that bacterionanofibers on Tol 5 cells are involved in the adhesive phenotype of Tol 5, the fiber that directly mediates Tol 5 adhesion has remained unknown. Here, we present a new member of trimeric autotransporter adhesins designated AtaA, which we discovered by analyzing a less adhesive mutant of Tol 5, T1, obtained by transposon mutagenesis. AtaA forms thinner and shorter nanofibers than fimbriae on Tol 5 cells. We performed target disruption of by allelic marker exchange, and the producing strain was ABT-737 complemented with around the shuttle vector, which was newly constructed. These results proved that AtaA is essential for Tol 5s autoagglutinating nature and high adhesiveness to surfaces of various materials. In addition, the adhesiveness to solid surfaces mediated by AtaA is usually notably higher than that mediated by YadA of WA-314. Moreover, and importantly, these characteristics can be conferred to the non-adhesive, non-agglutinating bacterium sp. ADP1 by transformation with with an adhesive extension of the cell envelope [18] and with Flp fimbria [19], nanofibers directly mediate quick and tenacious adhesion to abiotic surfaces. The toluene-degrading bacterium sp. Tol 5 previously isolated from a biofiltration process exhibited an autoagglutinating nature and noteworthy adhesiveness through the nanofibers around the cell surface [20], [21], [22]. Tol 5 cells are intrinsically adhesive to surfaces of various abiotic ABT-737 materials including hydrophobic plastics, hydrophilic glass, and stainless steel [23]. A large number of Tol 5 resting cells rapidly adhere to solid surfaces independently of cell growth. Tol 5s initial attachment ability is quite high and distinguishable from its ABT-737 biofilm formation ability. At least three types of peritrichate nanofibers have been found on Tol 5 cells [24]. Interestingly, production of the peritrichate nanofibers was affected by the available growth substrate. Thick, long, straight nanofibers on cells produced on toluene, lactate, and ethanol were not observed on cells produced on triacylglycerol (TAG). In contrast, cells produced on TAG were covered with long, curved nanofibers, which only existed sparsely on cells produced on toluene, lactate, and ethanol. Thin, short, straight nanofibers were found densely covering the margin of cells.