1ntc

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{{Seed}}
 
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[[Image:1ntc.png|left|200px]]
 
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==SOLUTION STRUCTURE OF THE DNA-BINDING DOMAIN OF NTRC WITH THREE ALANINE SUBSTITUTIONS==
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The line below this paragraph, containing "STRUCTURE_1ntc", creates the "Structure Box" on the page.
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<StructureSection load='1ntc' size='340' side='right'caption='[[1ntc]]' scene=''>
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1ntc]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Salmonella_enterica_subsp._enterica_serovar_Typhimurium Salmonella enterica subsp. enterica serovar Typhimurium]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NTC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NTC FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1ntc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ntc OCA], [https://pdbe.org/1ntc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ntc RCSB], [https://www.ebi.ac.uk/pdbsum/1ntc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ntc ProSAT]</span></td></tr>
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{{STRUCTURE_1ntc| PDB=1ntc | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/NTRC_SALTY NTRC_SALTY] Member of the two-component regulatory system NtrB/NtrC involved in the activation of nitrogen assimilatory genes such as GlnA. NtrC is phosphorylated by NtrB and interacts with sigma-54.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/nt/1ntc_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1ntc ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The structure of the 20 kDa C-terminal DNA-binding domain of NtrC from Salmonella typhimurium (residues Asp380-Glu469) with alanine replacing Arg456, Asn457, and Arg461, was determined by NMR spectroscopy. NtrC is a homodimeric enhancer-binding protein that activates the transcription of genes whose products are required for nitrogen metabolism. The 91-residue C-terminal domain contains the determinants necessary for dimerization and DNA-binding of the full length protein. The mutant protein does not bind to DNA but retains many characteristics of the wild-type protein, and the mutant domain expresses at high yield (20 mg/l) in minimal medium. Three-dimensional (1)H/(13)C/(15)N triple-resonance, (1)H-(13)C-(13)C-(1)H correlation and (15)N-separated nuclear Overhauser effect (NOE) spectroscopy experiments were used to make backbone and side-chain (1)H,(15)N, and (13)C assignments. The structures were calculated using a total of 1580 intra and inter-monomer distance and hydrogen bond restraints (88 hydrogen bonds; 44 hydrogen bond restraints), and 88 phi dihedral restraints for residues Asp400 through Glu469 in both monomers. A total of 54 ambiguous restraints (intra or inter-monomer) involving residues close to the 2-fold symmetry axis were also included. Each monomer consists of four helical segments. Helices A (Trp402-Leu414) and B (Leu421-His440) join with those of another monomer to form an antiparallel four-helix bundle. Helices C (Gln446-Leu451) and D (Ala456-Met468) of each monomer adopt a classic helix-turn-helix DNA-binding fold at either end of the protein. The backbone rms deviation for the 28 best of 40 starting structures is 0.6 (+/-0.2) A. Structural differences between the C-terminal domain of NtrC and the homologous Factor for Inversion Stimulation are discussed.
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===SOLUTION STRUCTURE OF THE DNA-BINDING DOMAIN OF NTRC WITH THREE ALANINE SUBSTITUTIONS===
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Solution structure of the DNA-binding domain of NtrC with three alanine substitutions.,Pelton JG, Kustu S, Wemmer DE J Mol Biol. 1999 Oct 8;292(5):1095-110. PMID:10512705<ref>PMID:10512705</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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The line below this paragraph, {{ABSTRACT_PUBMED_10512705}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 1ntc" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 10512705 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_10512705}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Large Structures]]
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1NTC is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Salmonella_typhimurium Salmonella typhimurium]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NTC OCA].
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[[Category: Salmonella enterica subsp. enterica serovar Typhimurium]]
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[[Category: Kustu S]]
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==Reference==
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[[Category: Pelton JG]]
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<ref group="xtra">PMID:10512705</ref><references group="xtra"/>
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[[Category: Wemmer DE]]
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[[Category: Salmonella typhimurium]]
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[[Category: Kustu, S.]]
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[[Category: Pelton, J G.]]
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[[Category: Wemmer, D E.]]
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[[Category: Fi]]
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[[Category: Four-helix bundle]]
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[[Category: Helix-turn-helix]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 06:03:37 2009''
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Current revision

SOLUTION STRUCTURE OF THE DNA-BINDING DOMAIN OF NTRC WITH THREE ALANINE SUBSTITUTIONS

PDB ID 1ntc

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