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< | ==Yeast cytosine deaminase crystal form p212121 with sodium acetate.== | ||
<StructureSection load='1rb7' size='340' side='right'caption='[[1rb7]], [[Resolution|resolution]] 2.10Å' scene=''> | |||
You may | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1rb7]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RB7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1RB7 FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1rb7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rb7 OCA], [https://pdbe.org/1rb7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1rb7 RCSB], [https://www.ebi.ac.uk/pdbsum/1rb7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1rb7 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/FCY1_YEAST FCY1_YEAST] Converts cytosine to uracil or 5-methylcytosine to thymine by deaminating carbon number 4. | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/rb/1rb7_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</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=1rb7 ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
A crystallization strategy termed 'microseed matrix screening' is described where the optimal conditions for nucleation versus extended lattice growth are not compatible. This method is an extension of conventional seeding techniques in which microseeds from the nucleation step are systematically seeded into new conditions where all components of the drop are allowed to vary to screen for subsequent growth of well ordered specimens. The structure of a crystal form of yeast cytosine deaminase produced by streak-seeding using a single condition for both nucleation and growth is compared with the structure of a related crystal form produced by separating nucleation and growth conditions. The resulting structural comparison demonstrates that differential chelation patterns of cations by acidic surface residues of proteins within crystal lattice contacts is a critical parameter of crystal nucleation and growth. | |||
Microseed matrix screening to improve crystals of yeast cytosine deaminase.,Ireton GC, Stoddard BL Acta Crystallogr D Biol Crystallogr. 2004 Mar;60(Pt 3):601-5. Epub 2004, Feb 25. PMID:14993707<ref>PMID:14993707</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1rb7" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Deaminase 3D structures|Deaminase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | [[Category: Large Structures]] | ||
== | |||
[[Category: | |||
[[Category: Saccharomyces cerevisiae]] | [[Category: Saccharomyces cerevisiae]] | ||
[[Category: Ireton GC]] | |||
[[Category: Ireton | [[Category: Stoddard BL]] | ||
[[Category: Stoddard | |||
Latest revision as of 09:02, 23 August 2023
Yeast cytosine deaminase crystal form p212121 with sodium acetate.Yeast cytosine deaminase crystal form p212121 with sodium acetate.
Structural highlights
FunctionFCY1_YEAST Converts cytosine to uracil or 5-methylcytosine to thymine by deaminating carbon number 4. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedA crystallization strategy termed 'microseed matrix screening' is described where the optimal conditions for nucleation versus extended lattice growth are not compatible. This method is an extension of conventional seeding techniques in which microseeds from the nucleation step are systematically seeded into new conditions where all components of the drop are allowed to vary to screen for subsequent growth of well ordered specimens. The structure of a crystal form of yeast cytosine deaminase produced by streak-seeding using a single condition for both nucleation and growth is compared with the structure of a related crystal form produced by separating nucleation and growth conditions. The resulting structural comparison demonstrates that differential chelation patterns of cations by acidic surface residues of proteins within crystal lattice contacts is a critical parameter of crystal nucleation and growth. Microseed matrix screening to improve crystals of yeast cytosine deaminase.,Ireton GC, Stoddard BL Acta Crystallogr D Biol Crystallogr. 2004 Mar;60(Pt 3):601-5. Epub 2004, Feb 25. PMID:14993707[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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