1sej: Difference between revisions

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{{Seed}}
[[Image:1sej.png|left|200px]]


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==Crystal Structure of Dihydrofolate Reductase-Thymidylate Synthase from Cryptosporidium hominis Bound to 1843U89/NADPH/dUMP==
The line below this paragraph, containing "STRUCTURE_1sej", creates the "Structure Box" on the page.
<StructureSection load='1sej' size='340' side='right'caption='[[1sej]], [[Resolution|resolution]] 2.87&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1sej]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Cryptosporidium_hominis Cryptosporidium hominis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SEJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SEJ FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.87&#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=F89:S)-2-(5(((1,2-DIHYDRO-3-METHYL-1-OXOBENZO(F)QUINAZOLIN-9-YL)METHYL)AMINO)1-OXO-2-ISOINDOLINYL)GLUTARIC+ACID'>F89</scene>, <scene name='pdbligand=NDP:NADPH+DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NDP</scene>, <scene name='pdbligand=UMP:2-DEOXYURIDINE+5-MONOPHOSPHATE'>UMP</scene></td></tr>
{{STRUCTURE_1sej|  PDB=1sej  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1sej FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sej OCA], [https://pdbe.org/1sej PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sej RCSB], [https://www.ebi.ac.uk/pdbsum/1sej PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sej ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q27552_CRYPV Q27552_CRYPV] Bifunctional enzyme. Involved in de novo dTMP biosynthesis. Key enzyme in folate metabolism (By similarity).[PIRNR:PIRNR000389]
== 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/se/1sej_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=1sej ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Cryptosporidium hominis is a protozoan parasite that causes acute gastrointestinal illness. There are no effective therapies for cryptosporidiosis, highlighting the need for new drug-lead discovery. An analysis of the protein-ligand interactions in two crystal structures of dihydrofolate reductase-thymidylate synthase (DHFR-TS) from C. hominis, determined at 2.8 and 2.87 A resolution, reveals that the interactions of residues Ile29, Thr58 and Cys113 in the active site of C. hominis DHFR provide a possible structural basis for the observed antifolate resistance. A comparison with the structure of human DHFR reveals active-site differences that may be exploited for the design of species-selective inhibitors.


===Crystal Structure of Dihydrofolate Reductase-Thymidylate Synthase from Cryptosporidium hominis Bound to 1843U89/NADPH/dUMP===
Two crystal structures of dihydrofolate reductase-thymidylate synthase from Cryptosporidium hominis reveal protein-ligand interactions including a structural basis for observed antifolate resistance.,Anderson AC Acta Crystallogr Sect F Struct Biol Cryst Commun. 2005 Mar 1;61(Pt, 3):258-62. Epub 2005 Feb 8. PMID:16511011<ref>PMID:16511011</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1sej" style="background-color:#fffaf0;"></div>


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==See Also==
The line below this paragraph, {{ABSTRACT_PUBMED_16511011}}, adds the Publication Abstract to the page
*[[Dihydrofolate reductase 3D structures|Dihydrofolate reductase 3D structures]]
(as it appears on PubMed at http://www.pubmed.gov), where 16511011 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_16511011}}
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</StructureSection>
==About this Structure==
1SEJ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Cryptosporidium_hominis Cryptosporidium hominis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SEJ OCA].
 
==Reference==
Two crystal structures of dihydrofolate reductase-thymidylate synthase from Cryptosporidium hominis reveal protein-ligand interactions including a structural basis for observed antifolate resistance., Anderson AC, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2005 Mar 1;61(Pt, 3):258-62. Epub 2005 Feb 8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16511011 16511011]
[[Category: Cryptosporidium hominis]]
[[Category: Cryptosporidium hominis]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Anderson, A C.]]
[[Category: Anderson AC]]
[[Category: Bifunctional enzyme]]
 
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Retrieved from "https://proteopedia.org/1sej"