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 proteinHeadquarters 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 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.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. 3D structures of TolR. 2jwk, 2jwl – TolR periplasmic domain – Haemophilus influenzae – NMR 5by4 – TolR – Escherichia coli. References. ↑ 1.0 1.1 1.2 1.3 ...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.Tolq | ผู้ติดตาม 3,909 คนบน 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 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 ].Biopolymer transport protein ExbB/TolQ [Intracellular trafficking, secretion, and vesicular transport]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 …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 ...Combination of the mutations T148A in the second transmembrane helix and T181A in the third transmembrane helix, proposed to form part of a proton pathway through ExbB, also resulted in inactive ExbB. E176 and T148 are strictly conserved in ExbB and TolQ proteins, and T181 is almost strictly conserved in ExbB, TolQ, and MotA.Email Address. Password. Remember me Forgot your password? Didn't receive confirmation instructions? Terms; Privacy; Twitter; Facebook; LinkedIn; Support © 2023 Tolq ...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 protein Combination of the mutations T148A in the second transmembrane helix and T181A in the third transmembrane helix, proposed to form part of a proton pathway through ExbB, also resulted in inactive ExbB. E176 and T148 are strictly conserved in ExbB and TolQ proteins, and T181 is almost strictly conserved in ExbB, TolQ, and MotA.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 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).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. tolQ: NC_003305: 176299: tolQ: AE017302: 262724: tolQ: 0: N/A: Search Again * OMIM link based on symbol match for human and mouse. Enter your search terms Submit ...These differences appear due to the mutation in the tolQ gene in MT51, as TolQ has previously been shown to influence antimicrobial resistance and membrane integrity in other bacterial cells (33 ...株式会社TOLQ LAB(トルクラボ)は2018年06月12日に設立した東京都目黒区にある株式会社です。株式会社TOLQ LABの住所は東京都目黒区中央町1丁目4-3目黒第8コーポ213で、法人番号は5120001214004です。決算情報、評判や口コミ、求人・バイト情報、反社情報、その他のリスク情報など、株式会社TOLQ LABに ...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.jp registered under .JP top-level domain. Check other websites in .JP zone . The last verification results, performed on (March 25, 2021) tolq.jp show that tolq.jp has an expired SSL certificate issued by Let's Encrypt (expired on May 01, 2021).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. Mutations affecting the function of TolA resulted in a lack or an alteration in TolA-TolQ or TolR-TolA interactions but did not affect the formation of TolQ-TolR complexes. Our results confirmed the importance of residues serine 18 and histidine 22, which are part of an SHLS motif highly conserved in the TolA and the related TonB proteins from ...Tolq integrates with 5,000 other apps on Zapier - it's the easiest way to automate your work. Instantly connect Tolq with the apps you use everyday. Tolq integrates ...Work on projects that match your skills. Our translators are at the heart of what we do, ensuring our customers receive high-quality translations exactly when they need them. Whether you prefer crafting translations of your own, editing machine-translated texts, evaluating human translations, building glossaries, or analyzing translation ... 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 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 … 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 ... 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. 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 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).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. 1 Domain Auction Start @ $1 tolq.net - The following domain TOLQ.NET is for sale. Starting bid $1 - $1 increment Registrar: InternetBS - Domain needs to be pushed to a IBS account or keepMay 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 ). Crowdin is a cloud-based localization management software for teams. Translate your apps, websites, games, documentation, marketing campaigns, and other content into 100+ languages. Create a native experience for your global customers. Translation management solution for web and mobile applications. Collaborate with your team, find professional ...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 chainv CTRL-K Post a Translation Request post https://access_key:[email protected]/v1/translations/requests Send the content you need to translate. Request JSONTolq | 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. 株式会社TOLQ LAB(トルクラボ)は2018年06月12日に設立した東京都目黒区にある株式会社です。株式会社TOLQ LABの住所は東京都目黒区中央町1丁目4-3目黒第8コーポ213で、法人番号は5120001214004です。決算情報、評判や口コミ、求人・バイト情報、反社情報、その他のリスク情報など、株式会社TOLQ LABに ...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 …Aug 10, 2023 · Tolq.com uses 24 technology products and services including HTML5, jQuery, and Google Analytics, according to G2 Stack. Tolq.com is actively using 46 technologies for its website, according to BuiltWith. These include Viewport Meta, IPhone / Mobile Compatible, and SSL by Default. 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.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 …Feb 13, 2009 · The TolQR complex uses the proton motive force to regulate TolA conformation and its interaction with the outer membrane Pal lipoprotein. It has been proposed that an ion channel forms at the TolQR transmembrane helix (TMH) interface. This complex assembles with a minimal TolQ:TolR ratio of 4-6:2 and therefore involves 14-20 TMHs. 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. 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 chainThese differences appear due to the mutation in the tolQ gene in MT51, as TolQ has previously been shown to influence antimicrobial resistance and membrane integrity in other bacterial cells (33 ...Tolq.com contact info: Phone number: +31 610877700 Website: www.tolq.com What does Tolq.com do? Tolq offers several ways to exchange content. Directly connecting our API to your CMS and/or ERP systems is best suited for high-volume translation.It comprises the inner membrane-associated and the outer membrane-anchored subunits composed of the TolA, TolQ, and TolR proteins and the TolB and Pal proteins, respectively. Although the Tol/Pal system was first defined as bacterial proteins involved in colicin uptake of Escherichia coli , its global roles have been characterized in several ...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.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 ... 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.Tolq.com Netherlands. Tolq is a young and dynamic translation company. We have built a platform that is designed to make the translation of websites much easier. - The work comes to you. As soon as a project matches your profile, we will send you an invitation to work on that project. Say goodbye to spending hours on looking for work!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.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. 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.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.TolQ Synonyms membrane spanning protein in TolA-TolQ-TolR complex, B0737, Fii, TolP, TolQ, ECK0726, fii, JW0727, tolP, b0737. Product description TolQ; Component of Tol-Pal Cell Envelope Complex; The Tol-Pal Cell Envelope Complex; The Colicin A Import System; Colicin S4 Transport System Score. tolQ. Protein TolQ; Part of the Tol-Pal system, which plays a role in outer membrane invagination during cell division and is important for maintaining outer membrane integrity. (224 aa) Predicted Functional Partners: Mmol_2081. PFAM: Biopolymer transport protein ExbD/TolR; KEGG: mfa:Mfla_2341 biopolymer transport protein ExbD/TolR.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 …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 protein 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 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. tolQ: NC_003305: 176299: tolQ: AE017302: 262724: tolQ: 0: N/A: Search Again * OMIM link based on symbol match for human and mouse. Enter your search terms Submit ...The TolA protein is a 421-amino acid residue integral membrane protein composed of three domains. Domain I, consisting of the amino-terminal 47 amino acids, contains a 21-residue hydrophobic segment that anchors the protein in the inner membrane. The remaining 374 amino acids, containing the other two domains, reside in the periplasmic space.The TolQRA proteins of Escherichia coli form an inner membrane complex involved in the maintenance of the outer membrane stability and in the late stages of cell division. The TolQR complex uses the proton motive force to regulate TolA conformation and its interaction with the outer membrane Pal lipoprotein. It has been proposed that an ion channel forms at the TolQR transmembrane helix (TMH ...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. 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 ...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.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.Jul 10, 2023 · 株式会社TOLQ LAB(トルクラボ)は2018年06月12日に設立した東京都目黒区にある株式会社です。株式会社TOLQ LABの住所は東京都目黒区中央町1丁目4-3目黒第8コーポ213で、法人番号は5120001214004です。決算情報、評判や口コミ、求人・バイト情報、反社情報、その他のリスク情報など、株式会社TOLQ LABに ... We would like to show you a description here but the site won’t allow us. Mutations affecting the function of TolA resulted in a lack or an alteration in TolA-TolQ or TolR-TolA interactions but did not affect the formation of TolQ-TolR complexes. Our results confirmed the importance of residues serine 18 and histidine 22, which are part of an SHLS motif highly conserved in the TolA and the related TonB proteins from ... 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.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.
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. . Sdccu cashier
Tolq | ผู้ติดตาม 3,909 คนบน 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.Analysis of the protein localization as function of the bacterial cell age revealed that TolA and TolQ localize earlier at midcell in the absence of the other Tol-Pal proteins. These data suggest that TolA and TolQ are delayed from their septal recruitment by the multiple interactions of TolA with TolB-Pal in the cell envelope providing a new ...tolQ(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 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 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 ).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 ... 3D structures of TolR. 2jwk, 2jwl – TolR periplasmic domain – Haemophilus influenzae – NMR 5by4 – TolR – Escherichia coli. References. ↑ 1.0 1.1 1.2 1.3 ...Score. tolQ. Protein TolQ; Part of the Tol-Pal system, which plays a role in outer membrane invagination during cell division and is important for maintaining outer membrane integrity. (224 aa) Predicted Functional Partners: Mmol_2081. PFAM: Biopolymer transport protein ExbD/TolR; KEGG: mfa:Mfla_2341 biopolymer transport protein ExbD/TolR.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 proteinThe Tolq API is a REST(Representational State Transfer) based API communicating over JSON. Authentication takes place as HTTP Basic over a secured connection. Make sure that you set the Content-Type header to application/json. To test the API, you can use an application like Postman. Set the Authorization to Basic, and use the access key as ... 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: NC_003305: 176299: tolQ: AE017302: 262724: tolQ: 0: N/A: Search Again * OMIM link based on symbol match for human and mouse. Enter your search terms Submit ... Email Address. Password. Remember me Forgot your password? Didn't receive confirmation instructions? Terms; Privacy; Twitter; Facebook; LinkedIn; Support © 2023 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.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 ….