1sme

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{{Seed}}
 
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[[Image:1sme.png|left|200px]]
 
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==PLASMEPSIN II, A HEMOGLOBIN-DEGRADING ENZYME FROM PLASMODIUM FALCIPARUM, IN COMPLEX WITH PEPSTATIN A==
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The line below this paragraph, containing "STRUCTURE_1sme", creates the "Structure Box" on the page.
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<StructureSection load='1sme' size='340' side='right'caption='[[1sme]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1sme]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Plasmodium_falciparum Plasmodium falciparum] and [https://en.wikipedia.org/wiki/Streptomyces_argenteolus_subsp._toyonakensis Streptomyces argenteolus subsp. toyonakensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SME OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SME FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 2.7&#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=IVA:ISOVALERIC+ACID'>IVA</scene>, <scene name='pdbligand=STA:STATINE'>STA</scene></td></tr>
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{{STRUCTURE_1sme| PDB=1sme | SCENE= }}
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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=1sme FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sme OCA], [https://pdbe.org/1sme PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sme RCSB], [https://www.ebi.ac.uk/pdbsum/1sme PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sme ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PLM2_PLAFX PLM2_PLAFX] During the asexual blood stage, participates in initial cleavage of native host hemoglobin (Hb) resulting in Hb denaturation (PubMed:11782538, PubMed:15574427, PubMed:8844673). May cleave preferentially denatured hemoglobin that has been cleaved by PMI (PubMed:8844673). Digestion of host Hb is an essential step which provides the parasite with amino acids for protein synthesis, and regulates osmolarity (Probable).<ref>PMID:11782538</ref> <ref>PMID:15574427</ref> <ref>PMID:8844673</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/sm/1sme_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1sme 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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Plasmodium falciparum is the major causative agent of malaria, a disease of worldwide importance. Resistance to current drugs such as chloroquine and mefloquine is spreading at an alarming rate, and our antimalarial armamentarium is almost depleted. The malarial parasite encodes two homologous aspartic proteases, plasmepsins I and II, which are essential components of its hemoglobin-degradation pathway and are novel targets for antimalarial drug development. We have determined the crystal structure of recombinant plasmepsin II complexed with pepstatin A. This represents the first reported crystal structure of a protein from P. falciparum. The crystals contain molecules in two different conformations, revealing a remarkable degree of interdomain flexibility of the enzyme. The structure was used to design a series of selective low molecular weight compounds that inhibit both plasmepsin II and the growth of P. falciparum in culture.
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===PLASMEPSIN II, A HEMOGLOBIN-DEGRADING ENZYME FROM PLASMODIUM FALCIPARUM, IN COMPLEX WITH PEPSTATIN A===
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Structure and inhibition of plasmepsin II, a hemoglobin-degrading enzyme from Plasmodium falciparum.,Silva AM, Lee AY, Gulnik SV, Maier P, Collins J, Bhat TN, Collins PJ, Cachau RE, Luker KE, Gluzman IY, Francis SE, Oksman A, Goldberg DE, Erickson JW Proc Natl Acad Sci U S A. 1996 Sep 17;93(19):10034-9. PMID:8816746<ref>PMID:8816746</ref>
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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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<div class="pdbe-citations 1sme" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_8816746}}, adds the Publication Abstract to the page
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*[[Plasmepsin|Plasmepsin]]
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(as it appears on PubMed at http://www.pubmed.gov), where 8816746 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_8816746}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Large Structures]]
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1SME is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Plasmodium_falciparum Plasmodium falciparum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SME OCA].
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==Reference==
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<ref group="xtra">PMID:8816746</ref><references group="xtra"/>
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[[Category: Plasmepsin II]]
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[[Category: Plasmodium falciparum]]
[[Category: Plasmodium falciparum]]
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[[Category: Erickson, J W.]]
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[[Category: Streptomyces argenteolus subsp. toyonakensis]]
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[[Category: Goldberg, D E.]]
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[[Category: Erickson JW]]
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[[Category: Gulnik, S V.]]
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[[Category: Goldberg DE]]
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[[Category: Lee, A Y.]]
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[[Category: Gulnik SV]]
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[[Category: Silva, A M.]]
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[[Category: Lee AY]]
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[[Category: Aspartic proteinase]]
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[[Category: Silva AM]]
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[[Category: Aspartyl proteinase]]
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[[Category: Hydrolase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 14:30:06 2009''
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Current revision

PLASMEPSIN II, A HEMOGLOBIN-DEGRADING ENZYME FROM PLASMODIUM FALCIPARUM, IN COMPLEX WITH PEPSTATIN A

PDB ID 1sme

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