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1zio

From Proteopedia

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[[Image:1zio.jpg|left|200px]]
 
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==PHOSPHOTRANSFERASE==
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The line below this paragraph, containing "STRUCTURE_1zio", creates the "Structure Box" on the page.
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<StructureSection load='1zio' size='340' side='right'caption='[[1zio]], [[Resolution|resolution]] 1.96&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'>[[1zio]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Geobacillus_stearothermophilus Geobacillus stearothermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZIO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ZIO FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 1.96&#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=AP5:BIS(ADENOSINE)-5-PENTAPHOSPHATE'>AP5</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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{{STRUCTURE_1zio| PDB=1zio | 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=1zio FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zio OCA], [https://pdbe.org/1zio PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1zio RCSB], [https://www.ebi.ac.uk/pdbsum/1zio PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1zio ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/KAD_GEOSE KAD_GEOSE] Catalyzes the reversible transfer of the terminal phosphate group between ATP and AMP. Plays an important role in cellular energy homeostasis and in adenine nucleotide metabolism (By similarity).
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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/zi/1zio_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=1zio ConSurf].
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<div style="clear:both"></div>
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'''PHOSPHOTRANSFERASE'''
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==See Also==
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*[[Adenylate kinase 3D structures|Adenylate kinase 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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Crystal structures of Bacillus stearothermophilus adenylate kinase with bound Ap5A, Mn2+ Ap5A, and Mg2+ Ap5A have been determined by X-ray crystallography to resolutions of 1.6 A, 1.85 A, and 1.96 A, respectively. The protein's lid domain is partially open, being both rotated and translated away from bound Ap5A. The flexibility of the lid domain in the ternary state and its ability to transfer force directly to the the active site is discussed in light of our proposed entropic mechanism for catalytic turnover. The bound Zn2+ atom is demonstrably structural in nature, with no contacts other than its ligating cysteine residues within 5 A. The B. stearothermophilus adenylate kinase lid appears to be a truncated zinc finger domain, lacking the DNA binding finger, which we have termed a zinc knuckle domain. In the Mg2+ Ap5A and Mn2+ Ap5A structures, Mg2+ and Mn2+ demonstrate six coordinate octahedral geometry. The interactions of the Mg2+-coordinated water molecules with the protein and Ap5A phosphate chain demonstrate their involvement in catalyzing phosphate transfer. The protein selects for beta-y (preferred by Mg2+) rather than alpha-gamma (preferred by Mn2+) metal ion coordination by forcing the ATP phosphate chain to have an extended conformation.
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==About this Structure==
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1ZIO is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Geobacillus_stearothermophilus Geobacillus stearothermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZIO OCA].
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==Reference==
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Crystal structures of Bacillus stearothermophilus adenylate kinase with bound Ap5A, Mg2+ Ap5A, and Mn2+ Ap5A reveal an intermediate lid position and six coordinate octahedral geometry for bound Mg2+ and Mn2+., Berry MB, Phillips GN Jr, Proteins. 1998 Aug 15;32(3):276-88. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9715904 9715904]
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[[Category: Adenylate kinase]]
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[[Category: Geobacillus stearothermophilus]]
[[Category: Geobacillus stearothermophilus]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Berry, M B.]]
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[[Category: Berry MB]]
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[[Category: Jr., G N.Phillips.]]
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[[Category: Phillips Jr GN]]
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[[Category: Kinase]]
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[[Category: Phosphotransferase]]
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[[Category: Transferase]]
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[[Category: Zinc finger]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 17:40:24 2008''
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PDB ID 1zio

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