Tolq

Jan 18, 2022 · What attracts TolQ or TolA to these sites is unclear. We show that FtsN indirectly attracts both proteins and that PBP1A, PBP1B, and CpoB are dispensable for their septal recruitment. However, the β-lactam aztreonam readily interferes with the septal accumulation of both TolQ and TolA, indicating that FtsN-stimulated production of septal ...

Tolq. A tolQ mutant, which rendered cells resistant to group A colicins and sensitive to cholate, had alanine 13 replaced by glycine and was lacking serine 14 in the first transmembrane segment. The membrane topologies of TolQ and TolR are similar to those proposed for ExbB and ExbD, respectively, which is consistent with the partial functional ...

Aug 21, 2023 · To ensure in situ lycopene production, murein lipoprotein, lipoprotein NlpI, inner membrane permease protein, and membrane-anchored protein in TolA-TolQ-TolR were deleted for improved membrane permeability. The final strain, LYC-8, produced 438.44 ± 8.11 and 136.94 ± 1.94 mg/L of extracellular and intracellular lycopene in fed-batch …

Back in September, L.A. rockers Wallows released “I Don’t Want to Talk,” their first new single since 2021’s 'Remote (Deluxe)' EP. The song was built from a ...In addition, two homologues each of E. coli TolB, TolQ and TolR are required for M. xanthus A-motility 98,99. The E. coli Tol proteins are involved in active transport of molecules across the ...Kampfenkel K, Braun V. Membrane topologies of the TolQ and TolR proteins of Escherichia coli: inactivation of TolQ by a missense mutation in the proposed first transmembrane segment. J Bacteriol. 1993 Jul; 175 (14):4485–4491. [PMC free article] [Google Scholar] Karlsson M, Hannavy K, Higgins CF.Tolq | 6,027 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 ... Although BOR1-GFP showed strong endosomal signals at 30 min in tolQ as well as wild-type plants, the BOR1-GFP signal in the plasma membrane remained for 120 min after high-B (100 µM boric acid) supply in the tolQ mutant (Fig. 3, Supplemental Figure 2). This result suggests that TOL proteins are required for efficient vacuolar sorting of BOR1 ...The Canyon Torque models and builds. The Canyon Torque 5 is the entry-level model, priced at € 2699, while the range-topping, € 5799 Torque CF 9 is more than twice as expensive.

May 12, 1995 · Both the C1 and C2 complexes were absent from a tolQ null mutant. From the polarity effect of the tolQ mutation on TolR production in strain TPS13, we concluded that TolQ was involved in the 71-kDa complex containing TolA. Plasmids that complemented either the tolQ or tolR mutations were found to restore these cross-linked complexes. The 65-kDa ... Oct 2, 2020 · COG0811 (PSSM ID: 223881): Conserved Protein Domain Family TolQ, 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 genera. Aug 1, 2001 · TolQ, TolR, and TolA inner membrane proteins of Escherichia coli are involved in maintaining the stability of the outer membrane. They share homology with the ExbB, ExbD, and TonB proteins ...Mar 4, 2021 · Outer membrane vesicles (OMVs) from Gram-negative bacteria were first described more than 50 years ago. However, the molecular mechanisms involved in biogenesis began to be studied only in the last few decades. Presently, the biogenesis and molecular mechanisms for their release are not completely known. This review covers …Mar 9, 2007 · Section snippets Mutant construction. Helices 2 (TM2, residues P138 to A158) and 3 (TM3, residues P169 to P187) of the TolQ protein together with the transmembrane helix of the TolR protein (residues P20 to P37) may act as determinants to couple the transfer of protons or ions to conformational change(s) within the TolQRA complex. 14 …CTQ/TOLQ HDB/PRP Government Sourced Facilities Note: Requirements are applicable to WPH and S Pass Holders • Based on MOM’s Safe Management Measures for workers on employer-provided transportation • Dedicated transportation can include employer-provided transportation (e.g. private bus, vans and lorries) and personal

Structure ? TIGR02796 is a member of the superfamily cl00568. Sequence Alignment include consensus sequence ? Format: Row Display: Color Bits: Type Selection:CTQ/TOLQ HDB/PRP Government Sourced Facilities Note: Requirements are applicable to WPH and S Pass Holders • Based on MOM’s Safe Management Measures for workers on employer-provided transportation • Dedicated transportation can include employer-provided transportation (e.g. private bus, vans and lorries) and personalThe abundance of siderophore transporter genes (tonB, tolQ, cirA, fepB, C, D) was determined by first matching metagenomic reads to transporter sequences from single-cell W2 using tBLASTx.Jun 1, 2022 · Want to become a Tolq Translator? Get started. Our offices. Our headquarters is located in The Hague, Netherlands. Drop by for a cappuccino! World Trade Center - The Hague Prinses Margrietplantsoen 33 2595 AM The Hague The Netherlands. Learn how to localize your e-commerce business.May 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 ...

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Oct 25, 2005 · Status. UniProtKB reviewed (Swiss-Prot) Organism. Escherichia coli (strain K12) Amino acids. 244 (go to sequence) Protein existence. Evidence at protein level. Annotation score.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 genera. ...Aug 9, 2019 · The PMF, TolQ and TolR proteins and the trans-membrane helix of TolA regulate the conformational change of the periplasmic region of TolA, and probably its ability to interact with Pal and perhaps TolB [6]. The TolQ-R complex is part of an emerging molecular motor family which is able to convert chemical energy derived from the PMF to ...Dec 22, 2006 · TolQ and TolA localize independently of any of the other four Tol–Pal proteins, while TolR and Pal require other components of the system. Studies with a fluorescent periplasmic probe (TT GFP) showed a localized expansion of the periplasm at constriction sites in tolA, pal and tolQ-pal mutant cells. In addition, they revealed the …

The Tol-Pal proteins of Escherichia coli are involved in maintaining outer membrane integrity. They form two complexes in the cell envelope. Transmembrane domains of TolQ, TolR, and TolA interact in the cytoplasmic membrane, while TolB and Pal form a complex near the outer membrane. The N-terminal t … 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 genera. The arrival and initial planning. The Steinway Lyngdorf setup was a 5.2.4 config: 5 x S-15 on-wall speakers, 2 of them with a custom paint job (F&B Chemise, light gray) 4 x IW-15 in-wall speakers. 2 x LSR boundary woofers, also with a custom paint job (also F&B Chemise) 1 x P200 Surround Processor. 3 x A2 Digital Power amplifier.3 days ago · Frequently asked questions about onboarding and qualification. I have added my language pair (s) but there doesn’t seem to be a Qualification Task available. Why am I not receiving any jobs? What’s the status of my Qualification Task? My qualification task has not been assessed within 2 weeks My qualification task has been assessed, but my ...The protein Pal (peptidoglycan-associated lipoprotein) is anchored in the outer membrane (OM) of Gram-negative bacteria and interacts with Tol proteins. Tol-Pal proteins form two complexes: the first is composed of three inner membrane Tol proteins (TolA, TolQ and TolR); the second consists of the TolB and Pal proteins linked to the cell's OM.Basic Information and Facts on Surah At-Talaaq Surah (Chapter) Number: 65 Number of Verses: 12 English Meaning: The Divorce Surah At-Talaaq (The Divorce) Arabic and English Translation The Iddah of Women after Divorce in Islam - Rules of Iddah 1. O Prophet ( )! When you divorce women, divorce them at their 'Iddah (prescribed periods), and count …Oct 2, 2020 · COG0811 (PSSM ID: 223881): Conserved Protein Domain Family TolQ,Nov 20, 2020 · TolQ than with ExbB indicated that the TolA anchor interacts with TolQ within the membrane bilayer (14). Furthermore, Lazzaroni et al. (20) obtained suppressor mutations in the anchor of TolR by using a mutant in a transmembrane region of TolQ which suggested that TolQ and TolR interact through their transmembrane domains.This complex assembles with a minimal TolQ/TolR ratio of 4:2, therefore involving at least 14 transmembrane helices, which may form the ion pathway. The C-terminal periplasmic domain of TolR protein interacts with TolQ and has been proposed to control the TolQR channel activity.

CTQ/TOLQ HDB/PRP Government Sourced Facilities Note: Requirements are applicable to WPH and S Pass Holders • Based on MOM’s Safe Management Measures for workers on employer-provided transportation • Dedicated transportation can include employer-provided transportation (e.g. private bus, vans and lorries) and personal

Jul 2, 2013 · For this study, the plasmid 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 create pMT002.Dec 4, 2019 · Brassinosteroid signaling can regulate auxin transport by influencing the sorting and accumulation of PIN auxin efflux carriers. Here, the authors show that in roots, brassinolide can modulate ...Experienced translators, supported by AI. Our community of 22,500 translators live in every corner of the world, and they have all passed rigorous tests to ensure you get trustworthy, native-quality translations at scale. Become a translator.It was shown that the tolQ mutation has a strong polar effect on the expression of tolR and, similarly, the exbB::Tn10 insertion affects the expression of exbD (11; 38). We clearly observed the pmf-dependent co-precipitation of Pal in GM1, whereas in the presence of CCCP or in the absence of TolQ–R or both protein pairs, TolQ–R and ExbB–D ...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. Jan 31, 2018 · 侯佳林, 聂唱, Venki Perumal, 肖湘, 王风平. 基于宏基因组学重建来自深海热液喷口的Epsilonproteobacteria基因组及其代谢分析 [J]. 微生物学通报, 2018, 45 (9): 1843-1852. HOU Jia-Lin, NIE Chang, Venki Perumal, XIAO Xiang, WANG Feng-Ping. Metabolic analysis of Epsilonproteobacteria genomes reconstructed from ...Retrieve a Translation Request. GET the translations for any content you have previously ordered. 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. 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 ...

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Jan 31, 2017 · 与tolQ和tolA不同,我们能够构建可行的orf1敲除菌株,并且该突变体表现出改变的细胞和集落形态,这提供了第一个证据证明Orf1在铜绿假单胞菌的Tol-OprL复合物中起着非必需的作用。表达谱表明在生长后期,群体感应系统也下调了tol基因。The Canyon Torque models and builds. The Canyon Torque 5 is the entry-level model, priced at € 2699, while the range-topping, € 5799 Torque CF 9 is more than twice as expensive.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.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.Basic Information and Facts on Surah At-Talaaq Surah (Chapter) Number: 65 Number of Verses: 12 English Meaning: The Divorce Surah At-Talaaq (The Divorce) Arabic and English Translation The Iddah of Women after Divorce in Islam - Rules of Iddah 1. O Prophet ( )! When you divorce women, divorce them at their 'Iddah (prescribed periods), and count …Apr 15, 2022 · The core-components are composed by the three IM proteins TolA, TolQ and TolR, the periplasmic protein TolB and the OM lipoprotein Pal. 5 All the Tol-Pal proteins are recruited to the divisome.3, 6 TolB and Pal form an OM complex. Pal interacts both with TolB and the PG layer, but these two interactions are mutually exclusive.7, 8 TolA, TolQ ...Logistics Operator jobs. Logistics Analyst jobs. Supply Chain Assistant jobs. More searches. Today’s top 114 Logistics Assistant jobs in South Africa. Leverage your professional network, and get hired. New Logistics Assistant jobs added daily.TolQ and their homologs (MotA, ExbB) are thought to be a “proton pore” involved in converting the proton-motive force (p.m.f.) into flagellar rotation [Citation 39]. The MotA/TolQ/ExbB family groups integral membrane proteins with scarce sequence identity but important structural and functional similarity that presumably form proton ...The pattern of TolA digestion in the absence of TolQ or TolR is shown in Fig. Fig.2. 2. The proteinase K-resistant product could be visualized in the tolQ and tolR strains in all the experimental conditions. Thus, TolA conformation depended on TolQ and TolR and was no longer PMF dependent when one of these proteins was absent. ….

May 12, 1995 · The TolA, TolB, TolQ, and TolR proteins are involved in maintaining the integrity of the Escherichia coli outer membrane and in the import of group A colicins and filamentous phage DNA. TolA, TolQ, and TolR are localized in the inner membrane while TolB is periplasmic, although a small amount of membrane-associated TolB is always …Nov 20, 2020 · TolQ than with ExbB indicated that the TolA anchor interacts with TolQ within the membrane bilayer (14). Furthermore, Lazzaroni et al. (20) obtained suppressor mutations in the anchor of TolR by using a mutant in a transmembrane region of TolQ which suggested that TolQ and TolR interact through their transmembrane domains.Oct 25, 2005 · Status. UniProtKB reviewed (Swiss-Prot) Organism. Escherichia coli (strain K12) Amino acids. 244 (go to sequence) Protein existence. Evidence at protein level. Annotation score.Get the latest Toll Brothers Inc (TOL) real-time quote, historical performance, charts, and other financial information to help you make more informed trading and investment decisions.TolQ-TolR-TolA ‘pulls’ TolB through holes in the peptidoglycan layer 35, from the ‘outer’ region of the periplasm close to the OM to the ‘inner’ periplasm thereby spatially separating ...Dec 5, 2013 · tolQ seedlings are delayed in their development and exhibit reduced germination frequency (germination ≥80%; n = 435). A large fraction of tolQ seedlings displays altered cotyledon formation (≥70%; n = 240; monocots, tricots, or fused cotyledons) highlighting aberrations during embryogenesis (Figure 1A). Aerial portions of mature …In addition, two homologues each of E. coli TolB, TolQ and TolR are required for M. xanthus A-motility 98,99. The E. coli Tol proteins are involved in active transport of molecules across the ...TolA, TolQ, and TolR proteins form the IM complex of the Tol–Pal system, a proton motive force (PMF)-dependent molecular motor conserved in gram-negative bacteria (Fig. 1 A). The TolQ–TolR motor is evolutionary related to the ExbB–ExbD motor of the Ton system, which is involved in the active transport of iron siderophores and cobalamin . 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. Tolq, Apr 17, 2023 · Tolq is an organised company focusing on all the right aspects every employee needs to succeed in their work. The company offers structured work environments, great work-life balance, friendly colleagues and a constant emphasis on growth opportunities for all employees. It's important to feel productive and make a …, The nucleotide sequence of a 2.9-kb DNA fragment containing the tolQ, tolR, and tolA genes was determined. The DNA sequence predicts TolQ to be a 25,250-Da protein exhibiting 53% identity to E. coli TolQ. TolR is predicted to be a 15,788-Da protein, sharing 38% identity with the E. coli TolR protein. The P. aeruginosa tolA sequence predicts a ... , Oct 25, 2021 · 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. , Besides lacking the tolQ-cpoB gene cluster, these strains also carry a strong superfission allele of the ftsB division gene, which promotes cell constriction and allows cells to survive and divide in the complete absence of FtsN . The strains displayed phenotypes typical for ftsB E56A ftsN + (CH238) or ftsB E56A ΔftsN (CH239) cells . , TolQ from A. aeolicus, which diverged very early in evolution, i.e.~3.9 Gya, has a sequence similarity of 22.3% and an amino acid identity of 11% with the proton-gated Hv1 channel from Karlodinium ..., The plan for TOLQ, endorsed by the QP, shall be available on-site at all times for inspection by MOM officers. Engage NEA to ensure that, other than the health and safety buffer, adequate sanitary facilities are provided and will not result in dis-amenities or public health nuisance to neighbouring premises (for projects in non-industrial area). , Tu veux savoir ce que Talking Angela fait à Paris ? Regarde cette adorable vidéo et télécharge l'appli Talking Angela à l'adresse https://o7n.co/angela. Main..., 3 days ago · Frequently asked questions about onboarding and qualification. I have added my language pair (s) but there doesn’t seem to be a Qualification Task available. Why am I not receiving any jobs? What’s the status of my Qualification Task? My qualification task has not been assessed within 2 weeks My qualification task has been assessed, but my ..., GM LS Oil Pickup Tube Bracket -Melling Performance Part # M29500 Melling is excited to announce the release of the M29500 L/S oil pump pickup tube support b..., TolQ from A. aeolicus, which diverged very early in evolution, i.e.~3.9 Gya, has a sequence similarity of 22.3% and an amino acid identity of 11% with the proton-gated Hv1 channel from Karlodinium ..., The TolA, TolB, TolQ, and TolR proteins are involved in maintaining the integrity of the Escherichia coli outer membrane and in the import of group A colicins and filamentous phage DNA. TolA, TolQ, and TolR are localized in the inner membrane while TolB is periplasmic, although a small amount of membrane-associated TolB is always found. In …, 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 genera., Search ProZ.com's extensive translation dictionaries and glossaries for medical, legal, technical and other specialized terms, in Spanish, Italian, German, Chinese, Arabic and many other languages. If you don't find the term you seek, feel free to ask for translation help using KudoZ™. Go back to the old term search., Email Address Password Remember me Forgot your password? Didn't receive confirmation instructions?, Tolq was rated 1 out of 5 based on 3 reviews from actual users. Find helpful reviews and comments, and compare the pros and cons of Tolq. Learn more here. Products. Coming soon. Check out launches that are coming soon. Product questions. Answer the most interesting questions. Launch archive., 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 …, What is Tolq? It provides high-volume human translation over an easy to implement API, saving you lots of money using smart Translation Memory technology. Tolq is a tool in …, Engage a Qualified Person (QP) to prepare a building plan. The plan for TOLQ, endorsed by the QP shall be available on-site at all times for inspection by MOM officers., Mar 15, 2023 · The first eurypsychrophilic acidophile to be formally described was At. ferrivorans NO-37 T (Hallberg et al., 2010).The type strain was isolated from pH 2.7 to 3.7 AMD waters at an abandoned copper mine in Norway where temperatures are below freezing for approximately 7 months of the year (Johnson et al., 2001).At.ferrivorans T is …, 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 … , Apr 15, 2022 · Localization of TolQ-mCherry as function of cell cycle progression in different genetic backgrounds. (a) Fluorescent profiles (demographs) of E. coli W3110 cells expressing the chromosomal fluorescent protein TolQ-mCherry, in WT, Δ tolB or Δ tolA backgrounds where n represents the number of cells for a triplicate study. , Jun 15, 2023 · The transmission electron microscopy and energy spectroscopy (Fig. 2) revealed significant differences in EGS12 under different Se(IV) concentration stresses.At high Se(IV) concentrations (2 mM), most of the SeNPs were observed inside the cells (Fig. 2 e, shown by red arrows) and only a small amount of SeNPs was present in the external environment (Fig. 2 e, shown by green arrows). , For this study, the plasmid 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 create pMT002., We would like to show you a description here but the site won’t allow us. , UZMOVi.com — 2019 - 2024 Права на фильмы принадлежат их авторам. Все фильмы представлены только для ознакомления. Администрация не несет ответственности за размещенные пользователями нелегальные материалы!, Glassdoor has 12 Tolq.com reviews submitted anonymously by Tolq.com employees. Read employee reviews and ratings on Glassdoor to decide if Tolq.com is …, The Canyon Torque models and builds. The Canyon Torque 5 is the entry-level model, priced at € 2699, while the range-topping, € 5799 Torque CF 9 is more than twice as expensive., Dec 5, 2013 · tolQ seedlings are delayed in their development and exhibit reduced germination frequency (germination ≥80%; n = 435). A large fraction of tolQ seedlings displays altered cotyledon formation (≥70%; n = 240; monocots, tricots, or fused cotyledons) highlighting aberrations during embryogenesis (Figure 1A). Aerial portions of mature …, The pattern of TolA digestion in the absence of TolQ or TolR is shown in Fig. Fig.2. 2. The proteinase K-resistant product could be visualized in the tolQ and tolR strains in all the experimental conditions. Thus, TolA conformation depended on TolQ and TolR and was no longer PMF dependent when one of these proteins was absent. , It was shown that the tolQ mutation has a strong polar effect on the expression of tolR and, similarly, the exbB::Tn10 insertion affects the expression of exbD (11; 38). We clearly observed the pmf-dependent co-precipitation of Pal in GM1, whereas in the presence of CCCP or in the absence of TolQ–R or both protein pairs, TolQ–R and ExbB–D ..., Apr 13, 2022 · The structurally related exbB and tolQ genes are interchangeable in conferring tonB-dependent colicin, bacteriophage, and albomycin sensitivity. J. Bacteriol. 171 , 6387–6390 (1989)., Aug 1, 1999 · 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).