1qr0

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[[Image:1qr0.jpg|left|200px]]<br /><applet load="1qr0" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="1qr0, resolution 1.90&Aring;" />
 
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'''CRYSTAL STRUCTURE OF THE 4'-PHOSPHOPANTETHEINYL TRANSFERASE SFP-COENZYME A COMPLEX'''<br />
 
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==Overview==
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==CRYSTAL STRUCTURE OF THE 4'-PHOSPHOPANTETHEINYL TRANSFERASE SFP-COENZYME A COMPLEX==
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The Bacillus subtilis Sfp protein activates the peptidyl carrier protein (PCP) domains of surfactin synthetase by transferring the 4'-phosphopantetheinyl moiety of coenzyme A (CoA) to a serine residue conserved in all PCPs. Its wide PCP substrate spectrum renders Sfp a biotechnologically valuable enzyme for use in combinatorial non-ribosomal peptide synthesis. The structure of the Sfp-CoA complex determined at 1.8 A resolution reveals a novel alpha/beta-fold exhibiting an unexpected intramolecular 2-fold pseudosymmetry. This suggests a similar fold and dimerization mode for the homodimeric phosphopantetheinyl transferases such as acyl carrier protein synthase. The active site of Sfp accommodates a magnesium ion, which is complexed by the CoA pyrophosphate, the side chains of three acidic amino acids and one water molecule. CoA is bound in a fashion that differs in many aspects from all known CoA-protein complex structures. The structure reveals regions likely to be involved in the interaction with the PCP substrate.
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<StructureSection load='1qr0' size='340' side='right'caption='[[1qr0]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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==About this Structure==
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<table><tr><td colspan='2'>[[1qr0]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QR0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QR0 FirstGlance]. <br>
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1QR0 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis] with <scene name='pdbligand=MG:'>MG</scene> and <scene name='pdbligand=COA:'>COA</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QR0 OCA].
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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]] 1.9&#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=COA:COENZYME+A'>COA</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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==Reference==
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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=1qr0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qr0 OCA], [https://pdbe.org/1qr0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qr0 RCSB], [https://www.ebi.ac.uk/pdbsum/1qr0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qr0 ProSAT]</span></td></tr>
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Crystal structure of the surfactin synthetase-activating enzyme sfp: a prototype of the 4'-phosphopantetheinyl transferase superfamily., Reuter K, Mofid MR, Marahiel MA, Ficner R, EMBO J. 1999 Dec 1;18(23):6823-31. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10581256 10581256]
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/SFP_BACSU SFP_BACSU] Activates the seven peptidyl carrier protein (PCP) domains of surfactin synthase SRF1/2/3 by transferring the 4'-phosphopantetheinyl moiety of coenzyme A (CoA) to a serine residue. Required for cells of B.subtilis to become producers of the lipopeptide antibiotics surfactin and plipastatin B1.<ref>PMID:8939709</ref>
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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/qr/1qr0_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=1qr0 ConSurf].
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<div style="clear:both"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Bacillus subtilis]]
[[Category: Bacillus subtilis]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Ficner, R.]]
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[[Category: Ficner R]]
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[[Category: Marahiel, A M.]]
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[[Category: Marahiel AM]]
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[[Category: Mofid, R M.]]
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[[Category: Mofid RM]]
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[[Category: Reuter, K.]]
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[[Category: Reuter K]]
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[[Category: COA]]
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[[Category: MG]]
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[[Category: protein-coenzyme a complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 14:42:42 2008''
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Current revision

CRYSTAL STRUCTURE OF THE 4'-PHOSPHOPANTETHEINYL TRANSFERASE SFP-COENZYME A COMPLEX

PDB ID 1qr0

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