3o4f

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[[Image:3o4f.png|left|200px]]
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==Crystal Structure of Spermidine Synthase from E. coli==
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<StructureSection load='3o4f' size='340' side='right' caption='[[3o4f]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3o4f]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. This structure supersedes the now removed PDB entries and [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=3hh9 3hh9]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3O4F OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3O4F FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SPEE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Spermidine_synthase Spermidine synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.5.1.16 2.5.1.16] </span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3o4f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3o4f OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3o4f RCSB], [http://www.ebi.ac.uk/pdbsum/3o4f PDBsum]</span></td></tr>
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</table>
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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/o4/3o4f_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/chain_selection.php?pdb_ID=2ata 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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Polyamines are essential in all branches of life. Biosynthesis of spermidine, one of the most ubiquitous polyamines, is catalyzed by spermidine synthase (SpeE). Although the function of this enzyme from Escherichia coli has been thoroughly characterised, its structural details remain unknown. Here, we report the crystal structure of E. coli SpeE and study its interaction with the ligands by isothermal titration calorimetry and computational modelling. SpeE consists of two domains - a small N-terminal beta-strand domain, and a C-terminal catalytic domain that adopts a canonical methyltransferase (MTase) Rossmann fold. The protein forms a dimer in the crystal and in solution. Structural comparison of E. coli SpeE to its homologs reveals that it has a large and unique substrate-binding cleft that may account for its lower amine substrate specificity.
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{{STRUCTURE_3o4f| PDB=3o4f | SCENE= }}
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The crystal structure of Escherichia coli spermidine synthase SpeE reveals a unique substrate-binding pocket.,Zhou X, Chua TK, Tkaczuk KL, Bujnicki JM, Sivaraman J J Struct Biol. 2010 Mar;169(3):277-85. Epub 2010 Jan 4. PMID:20051267<ref>PMID:20051267</ref>
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===Crystal Structure of Spermidine Synthase from E. coli===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_20051267}}
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==About this Structure==
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[[3o4f]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. This structure supersedes the now removed PDB entries and [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=3hh9 3hh9]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3O4F OCA].
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==See Also==
==See Also==
*[[Spermidine Synthase|Spermidine Synthase]]
*[[Spermidine Synthase|Spermidine Synthase]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:020051267</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Spermidine synthase]]
[[Category: Spermidine synthase]]
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[[Category: Chruszcz, M.]]
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[[Category: Chruszcz, M]]
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[[Category: Chua, T K.]]
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[[Category: Chua, T K]]
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[[Category: Minor, W.]]
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[[Category: Minor, W]]
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[[Category: Sivaraman, J.]]
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[[Category: Sivaraman, J]]
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[[Category: Tkaczuk, K L.]]
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[[Category: Tkaczuk, K L]]
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[[Category: Zhou, X.]]
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[[Category: Zhou, X]]
[[Category: Aminopropyltransferase]]
[[Category: Aminopropyltransferase]]
[[Category: Polyamine biosynthesis]]
[[Category: Polyamine biosynthesis]]

Revision as of 11:05, 9 December 2014

Crystal Structure of Spermidine Synthase from E. coli

3o4f, resolution 2.90Å

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