コーパス検索結果 (1語後でソート)
通し番号をクリックするとPubMedの該当ページを表示します
1 sequence of the agg5DCBA gene cluster shared fimbrial accessory genes (usher, chaperone, and minor pi
3 nic Escherichia coli expressing the K88 (F4) fimbrial adhesin (K88 ETEC) is a significant source of m
5 we characterize the interactions between the fimbrial adhesin FimH from uropathogenic Escherichia col
6 ructure was resolved based on fimH sequence (fimbrial adhesin gene: H subclone assignments), multiloc
7 fumC) but similar to that seen with another fimbrial adhesin of E. coli, papG-II, also implicated in
11 t not primary) structure to FimH, the type 1 fimbrial adhesin of uropathogenic E. coli, which shows s
15 niformly contained allele 41 of fimH (type 1 fimbrial adhesin) and a narrow range of alleles of gyrA
16 brial structural subunit), papG allele II (P fimbrial adhesin), iha (putative adhesin siderophore), a
17 host-associated nsSNPs for FimH, the type 1 fimbrial adhesin, highlights the role of key allelic res
18 fimH, which encodes mannose-specific type 1 fimbrial adhesin, resulting in functionally distinct cop
19 date structure and function of this class of fimbrial adhesins and assess the feasibility of an adhes
22 have centered on a subset of plasmid-encoded fimbrial adhesins known as colonization factors and heat
24 icularly rich in genes that encode potential fimbrial adhesins, autotransporters, iron-sequestration
31 r anaerobic conditions, the transcription of fimbrial and EPS enzymes was elevated in both Rv and Sv
32 Here we compare the DNA methylome of the fimbrial and proximal ends of the fallopian tube in BRCA
33 nt differences in methylation levels between fimbrial and proximal fallopian tube segments are threef
34 actic but showed upregulation of a number of fimbrial and Salmonella pathogenicity island 3 (SPI-3) a
35 tter understand the generation of adjuvanted fimbrial and toxoid immunity as well as the influence on
37 sly unidentified transcriptional regulators, fimbrial, and sugar phosphotransferase homologues, as we
38 , we show using force spectroscopy that anti-fimbrial antibodies diminish fimbrial elasticity by inhi
43 us gordonii through interaction of the minor fimbrial antigen Mfa1 with a specific region of the stre
44 ion of C3H/HeJ mice with Escherichia coli Dr fimbrial antigen reduced mortality associated with an ex
47 that the expression of serotype Typhimurium fimbrial antigens is induced during the infection of mic
49 e deletion mutants for gating, expression of fimbrial antigens was measured by flow cytometry in cult
50 i.d.) or sublingual (s.l.) delivery of CFA/I fimbrial antigens, including CfaEB and a CfaE-heat-labil
55 colonization factors of the chaperone/usher fimbrial assembly class; however, the binding specificit
57 tigation that are necessary to elucidate the fimbrial assembly pathways in Actinomyces and their func
59 nd gap3 mutants in terms of Fap1 biogenesis, fimbrial assembly, and bacterial adhesion, suggesting th
60 h these isopeptide bonds are dispensable for fimbrial assembly, cell-cell interactions and biofilm fo
63 s between the structure of FaeG proteins and fimbrial binding function, and perhaps virulence in dise
66 fimbria-associated adhesin, is required for fimbrial biogenesis and biofilm formation in Streptococc
67 a serine-rich glycoprotein, is essential for fimbrial biogenesis and biofilm formation of Streptococc
68 gene clusters encode similar components for fimbrial biogenesis but different types of regulators fo
73 n carcinomas', which frequently develop from fimbrial cells but not from the proximal portion of the
75 being developed, many of which target common fimbrial colonization factors as the major constituent,
77 to investigate the relative contributions of fimbrial deformation and bond transitions to the rolling
79 espondingly, FimA protein production and the fimbrial display on the mutant were significantly reduce
81 scopy that anti-fimbrial antibodies diminish fimbrial elasticity by inhibiting their natural capacity
83 possible mechanism is implantation of normal fimbrial epithelium on the denuded ovarian surface at th
85 ht into the complex interplay between type 1 fimbrial expression and flagellum-mediated motility.
86 ppeared that the relationship between type 1 fimbrial expression and motility is unidirectional, wher
87 RosE is a novel negative regulator of Std fimbrial expression as indicated by its repression of a
88 L-6 production and suggesting that the CFA/I fimbrial expression by Salmonella may protect against a
89 in expression (P < 0.0001), a loss of type 1 fimbrial expression did not result in increased motility
91 vaT and MvaU on pyocyanin synthesis and CupA fimbrial expression in these mutants were also analyzed.
92 reased cell density itself, this increase in fimbrial expression is due to an enrichment of fimbriate
93 ese data suggest that a tight control of Std fimbrial expression mediated by RosE is required during
94 CFT073 by examining the phenotypic effect of fimbrial expression on motility and the effect that indu
95 The effect of the mrkJ mutation on type 3 fimbrial expression was shown to be at the level of mrkA
96 the relationship between motility and type 1 fimbrial expression was tested for UPEC strain CFT073 by
97 on of motility caused by constitutive type 1 fimbrial expression, it was concluded that the synthesis
101 heterologous colonization factors while anti-fimbrial Fab fractions showed HAI activity limited to co
102 he eight related members of the ETEC class 5 fimbrial family are subdivided into three subclasses (5a
105 uced into Escherichia coli and expression of fimbrial filaments composed of PefA confirmed by flow cy
107 diate mannose-sensitive adhesion, the type 1 fimbrial FimH adhesins of Salmonella Typhimurium and Esc
108 determine which components are required for fimbrial formation in S. Typhimurium, mutations in fimA,
109 a molecular connection between flagella and fimbrial formation in serovar Typhimurium, indicating th
111 surface, suggesting that dispersin's role in fimbrial function is to overcome electrostatic attractio
112 tinal antibodies in mechanical disruption of fimbrial function may provide insights relevant to ETEC
117 ce of fimbriae, we focused on the two AAF/II fimbrial gene clusters in EAEC 042 (afaB-aafCB and aafDA
119 chanisms that have been described to control fimbrial gene expression and uses specific examples to d
120 regulatory link between flagellar and type 1 fimbrial gene expression dynamics, where we found that t
124 ing the EHEC secreted effectors and putative fimbrial gene expression showed a variable expression pr
125 flagellar regulator, FliZ, represses type 1 fimbrial gene expression through the posttranscriptional
126 nd that low expression of aar increases aafA fimbrial gene expression via H-NS; however, when aar is
134 an opposite to those seen with nonstructural fimbrial genes (fimC and fimI) and housekeeping loci (ad
135 or the phase-variable expression of the cupA fimbrial genes and suggest that CgrC exerts its regulato
137 Our results showed that the use of these fimbrial genes as markers, in combination with the diffe
139 ossibility that phase-variable expression of fimbrial genes important for biofilm formation may occur
141 tion of a phase variation module to regulate fimbrial genes is proposed to be beneficial for the adap
150 the sequence of PsaA, the subunit of the Psa fimbrial homopolymer, identified residues that abolish g
151 Therefore, we examined the ability of P fimbrial isogenic mutants, constructed in a type 1 fimbr
152 mannose-containing oligosaccharides with the fimbrial lectin of E. coli to design novel biosensors.
154 ts in IJ colonization revealed that a single fimbrial locus, named mad for maternal adhesion defectiv
158 regulated the surface exposure of the minor fimbrial (Mfa) protein subunit of P. gingivalis, which s
159 ders were inoculated with the wild type or a fimbrial mutant and in coinfection studies in which the
163 To test this hypothesis, the virulence of fimbrial mutants was assessed in independent challenges
164 infection studies in which the wild type and fimbrial mutants were inoculated together to assess the
165 al isogenic mutants, constructed in a type 1 fimbrial-negative background, to compete in the murine u
166 nesis was performed on a phase-locked type 1 fimbrial ON variant of strain CFT073 (CFT073 fim L-ON),
167 TcfB is the major structural subunit of a fimbrial operon found in serovar Typhi with no homolog i
168 R indicated an absence of transcripts from a fimbrial operon in an oxyR mutant that were present in t
171 ddition, we examined the organization of the fimbrial operon promoters from other important EAEC stra
172 ve autotransporters, an extension of the atf fimbrial operon to six genes, including an mrpJ homolog,
173 t induced expression of the putative stdABCD fimbrial operon were identified from a random bank of tr
174 lmonella Pathogenicity Island 1 (SPI-1), ste fimbrial operon, and Clustered, Regularly Interspaced, S
175 nts, each carrying a deletion of a different fimbrial operon, for their enteropathogenicity using the
176 regulator MrpJ, which is encoded by the mrp fimbrial operon, has been shown to repress both swimming
178 Mutations were found in: (i) the type 1 fimbrial operon; (ii) genes involved in the biosyn-thesi
179 al genes within SPI6, all of SPI9, and three fimbrial operons (fim, bcf, and stb) were conserved with
182 Typhimurium) genome contains 13 putative fimbrial operons termed agf (csg), fim, pef, lpf, bcf, s
183 nome contains a large repertoire of putative fimbrial operons that remain poorly characterized becaus
184 onephritis isolate E. coli CFT073 carries 12 fimbrial operons, 5 of which have never been studied.
186 s with deletions of one or both of the two P fimbrial operons, hlyA, fliC, ibpB, c0468, locus c3566 t
193 d January 2007, all (100%) originated in the fimbrial or ampullary region of the tube; six had an ear
195 tions is a result of both selection (of MR/P fimbrial phase variants) and signaling (via modulation o
199 on an OxyR-deficient strain and an enhanced fimbrial phenotype in strains bearing oxyR on a multicop
203 xist that generally contain common toxin and fimbrial profiles, with many of the isolates belonging t
204 ed mice showed that vaccination with the Psa fimbrial protein together with an adjuvant afforded inco
207 n (PT), filamentous hemagglutinin (FHA), and fimbrial proteins (FIM) were measured by validated IgG-s
211 cell vaccine mixed with multiple recombinant fimbrial proteins can provide protection during species-
213 MUB domains showed structural similarity to fimbrial proteins from Gram-positive pathogens, the part
214 stigated the role of 11 serotype Typhimurium fimbrial proteins, including FimA, AgfA (CsgA), BcfA, St
216 In the mouse bladder, the E. coli type 1 fimbrial receptor, uroplakin Ia, was located in lipid ra
218 ere augmented, while secreted IgG anti-CFA/I fimbrial responses remained unaffected compared to those
219 (-/-) mice, mucosal and serum IgA anti-CFA/I fimbrial responses were augmented, while secreted IgG an
221 und to be dependent on the background of the fimbrial shaft (E. coli versus K. pneumoniae) rather tha
223 FimH subunits, but are also modulated by the fimbrial shaft on which each FimH subunit is presented,
224 ial binding was not a function of the type I fimbrial shaft or the presence of other types of fimbria
225 haft, e.g. K. pneumoniae FimH on the E. coli fimbrial shaft or vice versa, altered the binding specif
226 nd that expression of FimH on a heterologous fimbrial shaft, e.g. K. pneumoniae FimH on the E. coli f
229 hat included the F16 or F7-2 papA alleles (P fimbrial structural subunit), papG allele II (P fimbrial
231 fimQ-fimP-srtC1-fimR gene cluster encodes a fimbrial structure (designated type 1) that contains a m
232 B-fimA-srtC2 gene cluster encodes a distinct fimbrial structure (designated type 2) composed of a sha
234 aeruginosa encodes components of a putative fimbrial structure that enable this opportunistic human
235 omponents and assembly factors of a putative fimbrial structure that enable this opportunistic pathog
238 tion of fimP completely abolished the type 1 fimbrial structures, surface display of monomeric FimQ w
241 t), cytolethal distending toxin (cdt), major fimbrial subunit (flp-1), and serotype-specific O polysa
242 because the genes coding for the only other fimbrial subunit are identical among the three variants.
243 , these studies showed that retention of K99 fimbrial subunit as native fimbriae or with the deletion
244 rmined, providing the first atomic view of a fimbrial subunit assembled by the alternate chaperone pa
246 the enterotoxigenic Escherichia coli (ETEC) fimbrial subunit CfaB (CFA/I structural subunit) alone o
247 oning and orientation of the subjacent major fimbrial subunit CfaB in the native assembly of CFA/I fi
249 s in hydrophilic domain II of the structural fimbrial subunit DraE and evaluated recombinant mutant D
250 s protective, we questioned whether altering fimbrial subunit expression to resemble conventional Sal
251 lmonella-CFA/I vaccine was modified to limit fimbrial subunit expression to the intracellular compart
253 ure of the promoters of Bordetella pertussis fimbrial subunit genes fim2, fim3 and fimX is the presen
257 sequences in the N and C termini of the Mfa1 fimbrial subunit protein perform critical roles in subun
258 train includes three genes, fimQ for a minor fimbrial subunit that appears to be an adhesin, fimP for
260 nDEFGH, which also reduced the export of the fimbrial subunit to the outer membrane but retained more
261 nGH, which greatly reduced the export of the fimbrial subunit to the outer membrane, showed only part
262 ), the promoter for the virulence gene fim3 (fimbrial subunit), using gel retardation, potassium perm
263 ap1 adhesin has been identified as the major fimbrial subunit, and recent studies suggest that Fap1 i
264 isolates did not possess any known AAF major fimbrial subunit, despite the presence of other AggR-rel
265 ase analysis of the genes encoding the major fimbrial subunits demonstrated that they are present in
271 as constructed and shown to be deficient for fimbrial surface expression under aerobic conditions.
273 among stool strains, with orientation of the fimbrial switch being both in the "off" position and in
274 ifferences between the S. Typhimurium type 1 fimbrial system and the E. coli type 1 and Pap fimbrial
277 These findings indicate that the dscCfaE fimbrial tip adhesin serves as a protective passive vacc
278 investigate the potential of MrpH, the MR/P fimbrial tip adhesin, as a vaccine, the mature MrpH pept
279 aE (dscCfaE), a stabilized form of the CFA/I fimbrial tip adhesin, is a protective antigen, using a l
281 , providing the first clinical evidence that fimbrial tip adhesins function as protective antigens.
282 e of FimH incorporated into the multiprotein fimbrial tip, where the anchoring (pilin) domain of FimH
286 n or adhesin gene copies, implying that each fimbrial type was acquired by ETEC strains very recently
288 and those with high (8.3 +/- 1.3) numbers of fimbrial types (means +/- standard errors of the means).
289 nt and biofilm formation in vitro, and these fimbrial types are suspected to be important virulence f
290 under some conditions, indicating that both fimbrial types have unique roles in the attachment and p
292 experiments, we were able to show that both fimbrial types serve to enhance colonization and persist
293 the prevalence of these 12 and 3 additional fimbrial types was determined for a collection of 303 E.
294 ological and biochemical differences between fimbrial types, regardless of class, provide structural
297 sis of the CFT073 genome indicates that this fimbrial usher gene is part of a novel fimbrial gene clu