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==CRYSTAL STRUCTURES OF ORGANOMERCURIAL-ACTIVATED CHICKEN LIVER DIHYDROFOLATE REDUCTASE COMPLEXES==
==CRYSTAL STRUCTURES OF ORGANOMERCURIAL-ACTIVATED CHICKEN LIVER DIHYDROFOLATE REDUCTASE COMPLEXES==
<StructureSection load='1dr4' size='340' side='right' caption='[[1dr4]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
<StructureSection load='1dr4' size='340' side='right'caption='[[1dr4]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1dr4]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Chick Chick]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DR4 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1DR4 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1dr4]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DR4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1DR4 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=HBI:7,8-DIHYDROBIOPTERIN'>HBI</scene>, <scene name='pdbligand=HG:MERCURY+(II)+ION'>HG</scene>, <scene name='pdbligand=NAP:NADP+NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NAP</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4&#8491;</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Dihydrofolate_reductase Dihydrofolate reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.5.1.3 1.5.1.3] </span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=HBI:7,8-DIHYDROBIOPTERIN'>HBI</scene>, <scene name='pdbligand=HG:MERCURY+(II)+ION'>HG</scene>, <scene name='pdbligand=NAP:NADP+NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NAP</scene></td></tr>
<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=1dr4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dr4 OCA], [http://pdbe.org/1dr4 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1dr4 RCSB], [http://www.ebi.ac.uk/pdbsum/1dr4 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1dr4 ProSAT]</span></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=1dr4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dr4 OCA], [https://pdbe.org/1dr4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1dr4 RCSB], [https://www.ebi.ac.uk/pdbsum/1dr4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1dr4 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/DYR_CHICK DYR_CHICK]] Key enzyme in folate metabolism. Contributes to the de novo mitochondrial thymidylate biosynthesis pathway. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. May bind to mRNA.  
[https://www.uniprot.org/uniprot/DYR_CHICK DYR_CHICK] Key enzyme in folate metabolism. Contributes to the de novo mitochondrial thymidylate biosynthesis pathway. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. May bind to mRNA.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dr/1dr4_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dr/1dr4_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
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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=1dr4 ConSurf].
</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=1dr4 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
==See Also==
*[[Dihydrofolate reductase 3D structures|Dihydrofolate reductase 3D structures]]
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Chick]]
[[Category: Gallus gallus]]
[[Category: Dihydrofolate reductase]]
[[Category: Large Structures]]
[[Category: /II, J F.Davies]]
[[Category: Davies /II JF]]
[[Category: Kaufman, B T]]
[[Category: Kaufman BT]]
[[Category: Kraut, J]]
[[Category: Kraut J]]
[[Category: Mctigue, M A]]
[[Category: Mctigue MA]]
[[Category: Xuong, N H]]
[[Category: Xuong N-H]]
[[Category: Oxidoreductase]]

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