1yun

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[[Image:1yun.gif|left|200px]]
 
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==Crystal Structure of Nicotinic Acid Mononucleotide Adenylyltransferase from Pseudomonas aeruginosa==
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The line below this paragraph, containing "STRUCTURE_1yun", creates the "Structure Box" on the page.
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<StructureSection load='1yun' size='340' side='right'caption='[[1yun]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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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'>[[1yun]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YUN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1YUN 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">X-ray diffraction, [[Resolution|Resolution]] 2&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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{{STRUCTURE_1yun| PDB=1yun | SCENE= }}
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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=1yun FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1yun OCA], [https://pdbe.org/1yun PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1yun RCSB], [https://www.ebi.ac.uk/pdbsum/1yun PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1yun ProSAT]</span></td></tr>
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</table>
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'''Crystal Structure of Nicotinic Acid Mononucleotide Adenylyltransferase from Pseudomonas aeruginosa'''
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== Function ==
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[https://www.uniprot.org/uniprot/NADD_PSEAE NADD_PSEAE] Catalyzes the reversible adenylation of nicotinate mononucleotide (NaMN) to nicotinic acid adenine dinucleotide (NaAD) (By similarity).
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== Evolutionary Conservation ==
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==Overview==
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[[Image:Consurf_key_small.gif|200px|right]]
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The enzyme nicotinic acid mononucleotide adenylyltransferase (NaMN AT; EC 2.7.7.18) is essential for the synthesis of nicotinamide adenine dinucleotide and is a potential target for antibiotics. It catalyzes the transfer of an AMP moiety from ATP to nicotinic acid mononucleotide to form nicotinic acid adenine dinucleotide. In order to provide missing structural information on the substrate complexes of NaMN AT and to assist structure-based design of specific inhibitors for antibacterial discovery, we have determined the crystal structure of NaMN AT from Pseudomonas aeruginosa in three distinct states, i.e. the NaMN-bound form at 1.7A resolution and ATP-bound form at 2.0A as well as its apo-form at 2.0A. They represent crucial structural information necessary for better understanding of the substrate recognition and the catalytic mechanism. The substrate-unbound and substrate-complexed structures are all in the fully open conformation and there is little conformational change upon binding each of the substrates. Our structures indicate that a conformational change is necessary to bring the two substrates closer together for initiating the catalysis. We suggest that such a conformational change likely occurs only after both substrates are simultaneously bound in the active site.
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Check<jmol>
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<jmolCheckbox>
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==About this Structure==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/yu/1yun_consurf.spt"</scriptWhenChecked>
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1YUN is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YUN OCA].
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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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==Reference==
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</jmolCheckbox>
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Crystal structure of nicotinic acid mononucleotide adenylyltransferase from Pseudomonas aeruginosa in its Apo and substrate-complexed forms reveals a fully open conformation., Yoon HJ, Kim HL, Mikami B, Suh SW, J Mol Biol. 2005 Aug 12;351(2):258-65. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16009375 16009375]
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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=1yun ConSurf].
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[[Category: Nicotinate-nucleotide adenylyltransferase]]
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<div style="clear:both"></div>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Pseudomonas aeruginosa]]
[[Category: Pseudomonas aeruginosa]]
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[[Category: Single protein]]
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[[Category: Kim HL]]
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[[Category: Kim, H L.]]
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[[Category: Mikami B]]
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[[Category: Mikami, B.]]
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[[Category: Suh SW]]
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[[Category: Suh, S W.]]
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[[Category: Yoon HJ]]
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[[Category: Yoon, H J.]]
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[[Category: Alpha/beta domain]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 16:48:43 2008''
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Current revision

Crystal Structure of Nicotinic Acid Mononucleotide Adenylyltransferase from Pseudomonas aeruginosa

PDB ID 1yun

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