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Interactions of the XylS regulators with the C-terminal domain of the RNA polymerase alpha subunit influence the expression level from the cognate Pm promoter.
Ruiz R, Ramos JL, Egan SM. Ruiz R, et al. FEBS Lett. 2001 Mar 2;491(3):207-11. doi: 10.1016/s0014-5793(01)02192-5. FEBS Lett. 2001. PMID: 11240128
Complexity in efflux pump control: cross-regulation by the paralogues TtgV and TtgT.
Terán W, Felipe A, Fillet S, Guazzaroni ME, Krell T, Ruiz R, Ramos JL, Gallegos MT. Terán W, et al. Among authors: ruiz r. Mol Microbiol. 2007 Dec;66(6):1416-28. doi: 10.1111/j.1365-2958.2007.06004.x. Epub 2007 Nov 5. Mol Microbiol. 2007. PMID: 17986203
The multidrug efflux regulator TtgV recognizes a wide range of structurally different effectors in solution and complexed with target DNA: evidence from isothermal titration calorimetry.
Guazzaroni ME, Krell T, Felipe A, Ruiz R, Meng C, Zhang X, Gallegos MT, Ramos JL. Guazzaroni ME, et al. Among authors: ruiz r. J Biol Chem. 2005 May 27;280(21):20887-93. doi: 10.1074/jbc.M500783200. Epub 2005 Mar 13. J Biol Chem. 2005. PMID: 15767250
Residues 137 and 153 at the N terminus of the XylS protein influence the effector profile of this transcriptional regulator and the sigma factor used by RNA polymerase to stimulate transcription from its cognate promoter.
Ruiz R, Ramos JL. Ruiz R, et al. J Biol Chem. 2002 Mar 1;277(9):7282-6. doi: 10.1074/jbc.M110226200. Epub 2001 Dec 21. J Biol Chem. 2002. PMID: 11751934
Leucines 193 and 194 at the N-terminal domain of the XylS protein, the positive transcriptional regulator of the TOL meta-cleavage pathway, are involved in dimerization.
Ruíz R, Marqués S, Ramos JL. Ruíz R, et al. J Bacteriol. 2003 May;185(10):3036-41. doi: 10.1128/jb.185.10.3036-3041.2003. J Bacteriol. 2003. PMID: 12730162 Free PMC article.
Members of the AraC/XylS family of transcriptional regulators are usually organized in two domains: a conserved domain made up of 100 amino acids and frequently located at the C-terminal end, involved in DNA binding; and an N-terminal nonconserved domain involved in signal recogn …
Members of the AraC/XylS family of transcriptional regulators are usually organized in two domains: a conserved domain made up of 100 amino …
Residues 137 and 153 of XylS influence contacts with the C-terminal domain of the RNA polymerase alpha subunit.
Ruiz R, Ramos JL. Ruiz R, et al. Biochem Biophys Res Commun. 2001 Sep 21;287(2):519-21. doi: 10.1006/bbrc.2001.5615. Biochem Biophys Res Commun. 2001. PMID: 11554759
Transcription activation by a variety of AraC/XylS family activators does not depend on the class II-specific activation determinant in the N-terminal domain of the RNA polymerase alpha subunit.
Egan SM, Pease AJ, Lang J, Li X, Rao V, Gillette WK, Ruiz R, Ramos JL, Wolf RE Jr. Egan SM, et al. Among authors: ruiz r. J Bacteriol. 2000 Dec;182(24):7075-7. doi: 10.1128/jb.182.24.7075-7077.2000. J Bacteriol. 2000. PMID: 11092872 Free PMC article.
Biodegradation, plasmid-encoded catabolic pathways, host factors and cell metabolism.
Marqués S, Manzanera M, González-Pérez MM, Ruíz R, Ramos JL. Marqués S, et al. Among authors: ruiz r. Environ Microbiol. 1999 Feb;1(1):103-4. doi: 10.1046/j.1462-2920.1999.00010.x. Environ Microbiol. 1999. PMID: 11207723 No abstract available.
Anti-carcinogenic soyabean Bowman-Birk inhibitors survive faecal fermentation in their active form and do not affect the microbiota composition in vitro.
Marín-Manzano MC, Ruiz R, Jiménez E, Rubio LA, Clemente A. Marín-Manzano MC, et al. Among authors: ruiz r. Br J Nutr. 2009 Apr;101(7):967-71. doi: 10.1017/s0007114508057590. Br J Nutr. 2009. PMID: 19353764
Influence of posttransplant time on dose and concentration of cyclosporine in renal transplant patients.
Sabaté I, Santos P, Castelao AM, Martínez JM, Ruiz R, González de la Presa B, Mesado D, Palencia T, Sebastián MA, Griñó JM. Sabaté I, et al. Among authors: ruiz r. Transplant Proc. 1995 Aug;27(4):2252-3. Transplant Proc. 1995. PMID: 7652795 No abstract available.
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