TolQ is a 230-amino-acid protein required to maintain the integrity of the bacterial envelope and to facilitate the import of both filamentous bacteriophage and group A colicins. Cellular fractionation experiments showed TolQ to be localized to the cytoplasmic membrane. Bacteria expressing a series …The tolQRAB-pal operon is conserved in Gram-negative genomes. The TolQRA proteins of Escherichia coli form an inner membrane complex in which TolQR uses the proton-motive force to regulate TolA conformation and the in vivo interaction of TolA C-terminal region with the outer membrane Pal lipoprotein. The stoichiometry of the TolQ, TolR, and TolA has been estimated and suggests that 4–6 TolQ ...It is shown that both TolQ and TolR proteins are essential for the TolA–Pal interaction, and that the TM domains of TolQand TolR present structural and functional homologies not only to ExbB and ExbD of the TonB system but also with MotA and MotB of the flagellar motor. The Tol–Pal system of Escherichia coli is required for the maintenance of outer membrane stability. Recently, proton ...tolQ. Gene Synonym(s) ECK0726, b0737, JW0727, fii, tolP, tolP. Product Desc. TolQ; Component of Tol-Pal Cell Envelope Complex; The Tol-Pal Cell Envelope Complex; The Colicin A Import System; Colicin S4 Transport System. Tolerance to group A colicins and ssDNA filamentous phage; cell envelope integrity; inner membrane proteinMay 30, 2020 · A homology model of TolQ-TolR based on 5:2 subunit stoichiometry is shown in Fig. 2B – D. The TolQ pentameric assembly similarly forms a large cytoplasmic chamber but with distinct charge patterning on its inner surface relative to that seen in ExbB (Fig. 2E). ExbB has a band of positive charge in the middle of the chamber followed by a ... carrying only tolQ (pRA031) was constructed from pRA003 (carrying both tolQ and tolR) by removal of tolR with specific restriction, followed by ligation. This tolQ construct was then excised by restriction and ligated into the identically restricted pBAD18-Cm to cre-ate pMT002. The ftsN gene was amplified by the polymerase chain DNA transfer requires the chromosomally encoded TolA, TolQ, and TolR cytoplasmic membrane proteins. By using radiolabeled phages, it can be shown that no pVIII is inserted into the cytoplasmic membrane when the bacteria contain null mutations in tolQ, -R and -A.Neither TolR nor TolA overexpression produced a phenotype, nor was the presence of either protein required for the TolQ-dependent phenotype. Consistent with their native membrane topology, the amino-terminal domain of TolQ specifically associated in vivo with the periplasmic domain of FtsN in a cytoplasm-based two-hybrid analysis. Jan 25, 2022 · The Tol-Pal system of Gram-negative bacteria is necessary for maintaining outer membrane integrity. It is a multiprotein complex of five envelope proteins, TolQ, TolR, TolA, TolB, and Pal. These proteins were first investigated in E. coli, and subsequently been identified in many other bacterial gen … We've got you covered! Tolq’s powerful combination of NMT and human translators is ideal for processing high volumes of content at a fast speed, all while maintaining a high level of quality and cost-efficiency. Learn what Tolq’s fully-integrated continuous localization solutions can do for your business.Aug 1, 2023 · As the TolQ–TolR motor is powered by the PMF, we wondered the interaction interfaces between pIII, TolQ, and TolR TMHs were linked to the energy status of the system. For the cysteine positions that displayed the most reproducible TolR/pIII-C and TolQ/pIII-C heterodimer signals, the cells were treated with the protonophore CCCP prior to the ... Headquarters Regions European Union (EU), Europe, Middle East, and Africa (EMEA) Founded Date 2010. Founders Danny de Wit. Operating Status Active. Company Type For Profit. Contact Email [email protected]. Phone Number 31610877700. Tolq.com is a provider of hassle-free website translation that translates its users’ websites and allows them ...TolQ and TolR are homologues of ExbB and ExbD, with 35% and 29% sequence identity, respectively, between each homologue. Importantly, overexpression of tolQ-tolR complements a strain in which exbB and exbD are deleted, and vice versa, hinting at a common mechanism (Braun and Herrmann 1993 ).The Tol–Pal system of Gram-negative bacteria is necessary for maintaining outer membrane integrity. It is a multiprotein complex of five envelope proteins, TolQ, TolR, TolA, TolB, and Pal. These proteins were first investigated in E. coli, and subsequently been identified in many other bacterial genera.The tolQRAB-pal operon is conserved in Gram-negative genomes. The TolQRA proteins of Escherichia coli form an inner membrane complex in which TolQR uses the proton-motive force to regulate TolA conformation and the in vivo interaction of TolA C-terminal region with the outer membrane Pal lipoprotein. The stoichiometry of the TolQ, TolR, and TolA has been estimated and suggests that 4–6 TolQ ... Fish. Defined by a wide, straight railed template with a swallow tail and low rocker, Fishes are designed to plane easily over the water making them fast, fun and extremely versatile. An excellent addition to a quiver or daily driver, every surfer needs a fish. Ride as Twin, Thruster or Quad. Previous •• Next.TolQ is a 230-amino-acid protein required to maintain the integrity of the bacterial envelope and to facilitate the import of both filamentous bacteriophage and group A colicins. Cellular fractionation experiments showed TolQ to be localized to the cytoplasmic membrane. Bacteria expressing a series …DNA transfer requires the chromosomally encoded TolA, TolQ, and TolR cytoplasmic membrane proteins. By using radiolabeled phages, it can be shown that no pVIII is inserted into the cytoplasmic membrane when the bacteria contain null mutations in tolQ, -R and -A.Escherichia coli tolQ mutants are resistant to filamentous bacteriophages that adsorb to the tips, not the shafts, of conjugative pili. Bradley, D.E., Whelan, J. J. Gen. Microbiol. (1989) tolQ is required for cloacin DF13 susceptibility in Escherichia coli expressing the aerobactin/cloacin DF13 receptor IutA. Feb 15, 2012 · Structure. The Tol system, also known as Tol-Pal, is a multi-protein complex found in the cell envelope of many gram-negative bacteria. It contains 7 proteins ( TolQ, TolR, TolA, TolB, Pal, YbgF, YbgC ), whose respective genes are organized into two operons as seen in the diagram [4] . DNA transfer requires the chromosomally encoded TolA, TolQ, and TolR cytoplasmic membrane proteins. By using radiolabeled phages, it can be shown that no pVIII is inserted into the cytoplasmic membrane when the bacteria contain null mutations in tolQ, -R and -A.Welcome Suggest Edits Tolq powers your translation process from end-to-end and is completely flexible on how you integrate it into your existing systems and/or content management tools. API integration Order content via our API and automate your translation process. Get your key, POST your content and GET your translations back. It's easy! Escherichia coli with mutations in the exb region are impaired in outer membrane receptor-dependent uptake processes. They are resistant to the antibiotic albomycin and exhibit reduced sensitivity to group B colicins. A 2.2-kilobase-pair DNA fragment of the exb locus was sequenced. It contained two …We've got you covered! Tolq’s powerful combination of NMT and human translators is ideal for processing high volumes of content at a fast speed, all while maintaining a high level of quality and cost-efficiency. Learn what Tolq’s fully-integrated continuous localization solutions can do for your business. Tolq.com. Glassdoor gives you an inside look at what it's like to work at Tolq.com, including salaries, reviews, office photos, and more. This is the Tolq.com company profile. All content is posted anonymously by employees working at Tolq.com.View Tolq.com org chart to access information on key employees and get valuable insights about Tolq.com organizational structure. The organizational chart highlights the reporting lines within the company, starting with the top decision makers: Yolandie Hugo, Tolq, and more.. The tolQRAB-pal operon is conserved in Gram-negative genomes. The TolQRA proteins of Escherichia coli form an inner membrane complex in which TolQR uses the proton-motive force to regulate TolA conformation and the in vivo interaction of TolA C-terminal region with the outer membrane Pal lipoprotein. The stoichiometry of the TolQ, TolR, and TolA has been estimated and suggests that 4–6 TolQ ...The structurally related exbB and tolQ genes are interchangeable in conferring tonB-dependent colicin, bacteriophage, and albomycin sensitivity. J.Bacteriol. 171:6387-6390 Webster, R.E. 1991.Headquarters Regions European Union (EU), Europe, Middle East, and Africa (EMEA) Founded Date 2010. Founders Danny de Wit. Operating Status Active. Company Type For Profit. Contact Email [email protected]. Phone Number 31610877700. Tolq.com is a provider of hassle-free website translation that translates its users’ websites and allows them ...The tolQ (A30V) and tolQ (G26D) mutations were able to suppress tolA (S18L), tolA (H22P), and tolA (H22R), while tolQ (I29S) only suppressed partially tolA (S18L) and tolA (H22P). The tolQ suppressors were unable to suppress the tolA (H22Y) mutation and on the contrary enhanced the defects generated by this mutation.We've got you covered! Tolq’s powerful combination of NMT and human translators is ideal for processing high volumes of content at a fast speed, all while maintaining a high level of quality and cost-efficiency. Learn what Tolq’s fully-integrated continuous localization solutions can do for your business. The Tol-Pal system of Escherichia coli is involved in maintaining outer membrane stability. Mutations in tolQ, tolR, tolA, tolB, or pal genes result in sensitivity to bile salts and the leakage of periplasmic proteins. Moreover, some of the tol genes are necessary for the entry of group A colicins a …The tolQ (A30V) and tolQ (G26D) mutations were able to suppress tolA (S18L), tolA (H22P), and tolA (H22R), while tolQ (I29S) only suppressed partially tolA (S18L) and tolA (H22P). The tolQ suppressors were unable to suppress the tolA (H22Y) mutation and on the contrary enhanced the defects generated by this mutation. Fish. Defined by a wide, straight railed template with a swallow tail and low rocker, Fishes are designed to plane easily over the water making them fast, fun and extremely versatile. An excellent addition to a quiver or daily driver, every surfer needs a fish. Ride as Twin, Thruster or Quad. Previous •• Next. Sep 29, 2021 · MotA is an essential component of the flageller motor that uses a proton gradient to generate rotational motion in the flageller. ExbB is part of the TonB-dependent transduction complex. The TonB complex uses the proton gradient across the inner bacterial membrane to transport large molecules across the outer bacterial membrane. Links. Two TolQ monomers are shown in cartoon format with a single TolR monomer. (B) The relative conservation of TolQ-TolR residues, which was generated following alignment (Clustal Omega) of ten TolQ sequences from different species, indicates that the most conserved residues map to the top or bottom of the TolQ lumen. The most-conserved residues of ...The structurally related exbB and tolQ genes are interchangeable in conferring tonB-dependent colicin, bacteriophage, and albomycin sensitivity. J.Bacteriol. 171:6387-6390 Webster, R.E. 1991. Mar 15, 2022 · Click on the Advanced system settings link in the left column. From the System Properties window, click on the Advanced tab, and then click on the Environment Variables button at the bottom. Select the Path variable from the System Variables section, and then click on Edit. Add: c:\php to your system path. The structurally related exbB and tolQ genes are interchangeable in conferring tonB-dependent colicin, bacteriophage, and albomycin sensitivity. J.Bacteriol. 171:6387-6390 Webster, R.E. 1991. Fish. Defined by a wide, straight railed template with a swallow tail and low rocker, Fishes are designed to plane easily over the water making them fast, fun and extremely versatile. An excellent addition to a quiver or daily driver, every surfer needs a fish. Ride as Twin, Thruster or Quad. Previous •• Next.Mar 3, 2022 · Two TolQ monomers are shown in cartoon format with a single TolR monomer. (B) The relative conservation of TolQ-TolR residues, which was generated following alignment (Clustal Omega) of ten TolQ sequences from different species, indicates that the most conserved residues map to the top or bottom of the TolQ lumen. The most-conserved residues of ... * Version Sync - Keep original and translated version in sync automatically * SEO - SEO support is fully integrated into Tolq * 100% Satisfaction guarantee - Translating with Tolq means getting the highest possible quality, provided by professional translators. Use Tolq to translate or localize your website and reach millions of new people.The third transmembrane domain of TolQ interacts with the N- and C-termini of TolR and the first transmembrane domain of TolQ. The stoichiometry of the proteins in the complex has not been entirely elucidated, but at least TolR has been shown to form dimers (Lazdunski et al., personal communication).You can test your implementation with Tolq Latin (tq), a test language that allows you to tests all the functionalities the API has for free. With the test you can get acquainted with all the flows without worrying. Support We offer developer support for API integration. TolQ is a polytopic protein located in the inner (cytoplasmic) membrane, containing approximately 230 amino acids. There are three membrane spanning segments in TolQ with each segment containing an α-helix. TM1 is connected to TM2 via a large cytoplasmic loop, with the N-terminal ending in the periplasm.DNA transfer requires the chromosomally encoded TolA, TolQ, and TolR cytoplasmic membrane proteins. By using radiolabeled phages, it can be shown that no pVIII is inserted into the cytoplasmic membrane when the bacteria contain null mutations in tolQ, -R and -A.The Tol/Pal system of Escherichia coli is composed of the YbgC, TolQ, TolA, TolR, TolB, Pal and YbgF proteins. It is involved in maintaining the integrity of the outer membrane, and is required for the uptake of group A colicins and DNA of filamentous bacteriophages. To identify new interactions bet …Dec 18, 2017 · Edwardsiella ictaluri is a Gram-negative facultative intracellular pathogen that causes enteric septicemia in catfish (ESC). Stress factors including poor water quality, poor diet, rough handling, overcrowding, and water temperature fluctuations increase fish susceptibility to ESC. The TonB energy transducing system (TonB-ExbB-ExbD) and TonB-dependent transporters of Gram-negative bacteria ... ExbB-TolR and ExbD-TolQ mixtures showed little if any complementation of exbB exbD and tolQ tolR mutants indicating coevolution of ExbB with ExbD and TolQ with TolR. Sequence homology and mutual functional substitution of ExbB-ExbD and TolQ-TolR suggest the evolution of the two import systems from a single import system. Escherichia coli with mutations in the exb region are impaired in outer membrane receptor-dependent uptake processes. They are resistant to the antibiotic albomycin and exhibit reduced sensitivity to group B colicins. A 2.2-kilobase-pair DNA fragment of the exb locus was sequenced. It contained two … Strains Relevant characteristicsa a The specific nature of the deletions (∆) is as follows: The ∆tolQ deletion removed the predicted tolQ codons 1-230 and the termination codon; the ∆tolR deletion removed the predicted tolR codons 1-142 and the termination codon; the ∆tolA deletion removed the predicted tolA codons 1-421, leaving the termination codon in place. Tolq | 3,958 followers on LinkedIn. Scalable E-Commerce Localization | Language connects people and organizations. Language is the only barrier to a global market of hundreds of millions of people and companies. If you perform at the highest level of e-commerce, your translation process should be as agile as you are. The stoichiometry of the TolQ, TolR, and TolA has been estimated and suggests that 4-6 TolQ molecules are associated in the complex, thus involving interactions between the transmembrane helices (TMHs) of TolQ, TolR, and TolA. It has been proposed that an ion channel forms at the interface between two TolQ and one TolR TMHs involving the TolR ...This fragment was also detected in Delta tolQ, Delta tolR, and tolA(H22P) mutants but, in contrast to the parental strain, was also seen in the absence of uncouplers. We repeated those experiments in outer membrane mutants such as lpp, pal, and Delta rfa mutants: the behavior of TolA in lpp mutants was similar to that observed with the parental ... carrying only tolQ (pRA031) was constructed from pRA003 (carrying both tolQ and tolR) by removal of tolR with specific restriction, followed by ligation. This tolQ construct was then excised by restriction and ligated into the identically restricted pBAD18-Cm to cre-ate pMT002. The ftsN gene was amplified by the polymerase chain Companies I Follow. Top Searches: React Node.js Python Java Django Vue.js. 👆 Add tools to find more relevant jobs. We're currently showing you jobs sorted by the ones closest to your IP address.As the TolQ–TolR motor is powered by the PMF, we wondered the interaction interfaces between pIII, TolQ, and TolR TMHs were linked to the energy status of the system. For the cysteine positions that displayed the most reproducible TolR/pIII-C and TolQ/pIII-C heterodimer signals, the cells were treated with the protonophore CCCP prior to the ...TolQ is a 230-amino-acid protein required to maintain the integrity of the bacterial envelope and to facilitate the import of both filamentous bacteriophage and group A colicins. Cellular fractionation experiments showed TolQ to be localized to the cytoplasmic membrane. Bacteria expressing a series …Fish. Defined by a wide, straight railed template with a swallow tail and low rocker, Fishes are designed to plane easily over the water making them fast, fun and extremely versatile. An excellent addition to a quiver or daily driver, every surfer needs a fish. Ride as Twin, Thruster or Quad. Previous •• Next. The structurally related exbB and tolQ genes are interchangeable in conferring tonB-dependent colicin, bacteriophage, and albomycin sensitivity. J.Bacteriol. 171:6387-6390 Webster, R.E. 1991.The structurally related exbB and tolQ genes are interchangeable in conferring tonB-dependent colicin, bacteriophage, and albomycin sensitivity. J.Bacteriol. 171:6387-6390 Webster, R.E. 1991. carrying only tolQ (pRA031) was constructed from pRA003 (carrying both tolQ and tolR) by removal of tolR with specific restriction, followed by ligation. This tolQ construct was then excised by restriction and ligated into the identically restricted pBAD18-Cm to cre-ate pMT002. The ftsN gene was amplified by the polymerase chain Neither TolR nor TolA overexpression produced a phenotype, nor was the presence of either protein required for the TolQ-dependent phenotype. Consistent with their native membrane topology, the amino-terminal domain of TolQ specifically associated in vivo with the periplasmic domain of FtsN in a cytoplasm-based two-hybrid analysis.Tolq | 3,958 followers on LinkedIn. Scalable E-Commerce Localization | Language connects people and organizations. Language is the only barrier to a global market of hundreds of millions of people and companies. If you perform at the highest level of e-commerce, your translation process should be as agile as you are.Download alignment. TolQ protein. TolQ is one of the essential components of the Tol-Pal system. Together with TolR, it harnesses protonmotive force to energize TolA, which spans the periplasm to reach the complex of TolB and Pal at the outer member. The tol-pal system proves to be important for maintaining outer membrane integrity.Escherichia coli with mutations in the exb region are impaired in outer membrane receptor-dependent uptake processes. They are resistant to the antibiotic albomycin and exhibit reduced sensitivity to group B colicins. A 2.2-kilobase-pair DNA fragment of the exb locus was sequenced. It contained two … You can test your implementation with Tolq Latin (tq), a test language that allows you to tests all the functionalities the API has for free. With the test you can get acquainted with all the flows without worrying. Support We offer developer support for API integration.We've got you covered! Tolq’s powerful combination of NMT and human translators is ideal for processing high volumes of content at a fast speed, all while maintaining a high level of quality and cost-efficiency. Learn what Tolq’s fully-integrated continuous localization solutions can do for your business. Headquarters Regions European Union (EU), Europe, Middle East, and Africa (EMEA) Founded Date 2010. Founders Danny de Wit. Operating Status Active. Company Type For Profit. Contact Email [email protected]. Phone Number 31610877700. Tolq.com is a provider of hassle-free website translation that translates its users’ websites and allows them ... Mar 15, 2022 · Click on the Advanced system settings link in the left column. From the System Properties window, click on the Advanced tab, and then click on the Environment Variables button at the bottom. Select the Path variable from the System Variables section, and then click on Edit. Add: c:\php to your system path. Our basic PHP website is going to feature a home page, including biographical information and some images. For this simple PHP website, you're going to create a single PHP page populated by content from three HTML pages. The index.php file you create can then be edited by adjusting the words and images from the original HTML files.MotA is an essential component of the flageller motor that uses a proton gradient to generate rotational motion in the flageller. ExbB is part of the TonB-dependent transduction complex. The TonB complex uses the proton gradient across the inner bacterial membrane to transport large molecules across the outer bacterial membrane. Links.Tolq | 3,933 followers on LinkedIn. Scalable E-Commerce Localization | Language connects people and organizations. Language is the only barrier to a global market of hundreds of millions of people ...The tools you need for native-quality localization at scale. Learn how Tolq helps you serve customers in any language with fast, fully integrated translations of the content powering your global growth. Book a demo. The third transmembrane domain of TolQ interacts with the N- and C-termini of TolR and the first transmembrane domain of TolQ. The stoichiometry of the proteins in the complex has not been entirely elucidated, but at least TolR has been shown to form dimers (Lazdunski et al., personal communication).carrying only tolQ (pRA031) was constructed from pRA003 (carrying both tolQ and tolR) by removal of tolR with specific restriction, followed by ligation. This tolQ construct was then excised by restriction and ligated into the identically restricted pBAD18-Cm to cre-ate pMT002. The ftsN gene was amplified by the polymerase chain May 30, 2020 · TolQ and TolR are homologues of ExbB and ExbD, with 35% and 29% sequence identity, respectively, between each homologue. Importantly, overexpression of tolQ-tolR complements a strain in which exbB and exbD are deleted, and vice versa, hinting at a common mechanism (Braun and Herrmann 1993 ). It is shown that both TolQ and TolR proteins are essential for the TolA–Pal interaction, and that the TM domains of TolQand TolR present structural and functional homologies not only to ExbB and ExbD of the TonB system but also with MotA and MotB of the flagellar motor. The Tol–Pal system of Escherichia coli is required for the maintenance of outer membrane stability. Recently, proton ...Organism Homologs (Statistics) Comments Xenopus tropicalis. ENSXETP00000022132 (score: 1.000; bootstrap: 99%) From Inparanoid:20070104 Shigella flexneritolQ(fii-5) GGT -> GAT . Gly codon to Asp codon Resistant to resistant to phage f1 PMID:3001021. CGSC:92683. fii-5 in TPS66 Table 2 tolQ(fii-5) GGT -> GAT . Gly codon to Asp codon Resistant to resistant to colicins E1 and E2 PMID:3001021. CGSC:92683. fii-5 in TPS66 Table 3 tolQ7. ATCCAG -> ATTTAG. Ile-Gln to Ile-UAG stop codon Resistant to
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The structurally related exbB and tolQ genes are interchangeable in conferring tonB-dependent colicin, bacteriophage, and albomycin sensitivity. J.Bacteriol. 171:6387-6390 Webster, R.E. 1991. The tolQ and tolR mutants of E. ictaluri were also shown to provide resistance to infection with the highly virulent wild-type E. ictaluri . Many Gram-negative bacteria release outer membrane vesicles (OMVs), which contain various immunogenic bacterial surface components, such as outer membrane proteins, phospholipids, and LPS [ 87 , 88 ].Nov 1, 2001 · It is shown that both TolQ and TolR proteins are essential for the TolA–Pal interaction, and that the TM domains of TolQand TolR present structural and functional homologies not only to ExbB and ExbD of the TonB system but also with MotA and MotB of the flagellar motor. The Tol–Pal system of Escherichia coli is required for the maintenance of outer membrane stability. Recently, proton ... As the TolQ–TolR motor is powered by the PMF, we wondered the interaction interfaces between pIII, TolQ, and TolR TMHs were linked to the energy status of the system. For the cysteine positions that displayed the most reproducible TolR/pIII-C and TolQ/pIII-C heterodimer signals, the cells were treated with the protonophore CCCP prior to the ...Apr 1, 2011 · The stoichiometry of the TolQ, TolR, and TolA has been estimated and suggests that 4-6 TolQ molecules are associated in the complex, thus involving interactions between the transmembrane helices (TMHs) of TolQ, TolR, and TolA. It has been proposed that an ion channel forms at the interface between two TolQ and one TolR TMHs involving the TolR ... The structurally related exbB and tolQ genes are interchangeable in conferring tonB-dependent colicin, bacteriophage, and albomycin sensitivity. J.Bacteriol. 171:6387-6390 Webster, R.E. 1991. Nov 1, 2016 · Abstract. Edwardsiella ictaluri is a Gram-negative intracellular facultative pathogen causing enteric septicemia of channel catfish (ESC). The Tol system, consisting of four envelope proteins TolQ, TolR, TolA, and TolB, are required for colicin import and contributes to bacterial virulence in several pathogenic bacteria. (E-G) The MotA, ExbB, and TolQ pentamers viewed from the cytoplasm to show the outward movement of helices that generate an expanded pore. By contrast, the structures can be overlaid almost ...TolQ is a 230-amino-acid protein required to maintain the integrity of the bacterial envelope and to facilitate the import of both filamentous bacteriophage and group A colicins. Cellular fractionation experiments showed TolQ to be localized to the cytoplasmic membrane. Bacteria expressing a series …As the TolQ–TolR motor is powered by the PMF, we wondered the interaction interfaces between pIII, TolQ, and TolR TMHs were linked to the energy status of the system. For the cysteine positions that displayed the most reproducible TolR/pIII-C and TolQ/pIII-C heterodimer signals, the cells were treated with the protonophore CCCP prior to the ... This fragment was also detected in Delta tolQ, Delta tolR, and tolA(H22P) mutants but, in contrast to the parental strain, was also seen in the absence of uncouplers. We repeated those experiments in outer membrane mutants such as lpp, pal, and Delta rfa mutants: the behavior of TolA in lpp mutants was similar to that observed with the parental ....