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<StructureSection load='1lns' size='340' side='right'caption='[[1lns]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
<StructureSection load='1lns' size='340' side='right'caption='[[1lns]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1lns]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacterium_lactis"_lister_1873 "bacterium lactis" lister 1873]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LNS OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=1LNS FirstGlance]. <br>
<table><tr><td colspan='2'>[[1lns]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Lactococcus_lactis Lactococcus lactis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LNS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1LNS FirstGlance]. <br>
</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">pepX (ORF2) ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1358 "Bacterium lactis" Lister 1873])</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]] 2.2&#8491;</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Xaa-Pro_dipeptidyl-peptidase Xaa-Pro dipeptidyl-peptidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.14.11 3.4.14.11] </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=1lns FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lns OCA], [https://pdbe.org/1lns PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1lns RCSB], [https://www.ebi.ac.uk/pdbsum/1lns PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1lns ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=1lns FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lns OCA], [http://pdbe.org/1lns PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1lns RCSB], [http://www.ebi.ac.uk/pdbsum/1lns PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1lns ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/PEPX_LACLC PEPX_LACLC]] Removes N-terminal dipeptides sequentially from polypeptides having unsubstituted N-termini provided that the penultimate residue is proline.[HAMAP-Rule:MF_00698]  
[https://www.uniprot.org/uniprot/PEPX_LACLC PEPX_LACLC] Removes N-terminal dipeptides sequentially from polypeptides having unsubstituted N-termini provided that the penultimate residue is proline.[HAMAP-Rule:MF_00698]
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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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=1lns 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=1lns ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The X-prolyl dipeptidyl aminopeptidase (X-PDAP) from Lactococcus lactis is a dimeric enzyme catalyzing the removal of Xaa-Pro dipeptides from the N terminus of peptides. The structure of the enzyme was solved at 2.2 A resolution and provides a model for the peptidase family S15. Each monomer is composed of four domains. The larger one presents an alpha/beta hydrolase fold and comprises the active site serine. The specificity pocket is mainly built by residues from a small helical domain which is, together with the N-terminal domain, essential for dimerization. A C-terminal moiety probably plays a role in the tropism of X-PDAP toward the cellular membrane. These results give new insights for further exploration of the role of the enzymes of the SC clan.
The structural basis for catalysis and specificity of the X-prolyl dipeptidyl aminopeptidase from Lactococcus lactis.,Rigolet P, Mechin I, Delage MM, Chich JF Structure. 2002 Oct;10(10):1383-94. PMID:12377124<ref>PMID:12377124</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1lns" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bacterium lactis lister 1873]]
[[Category: Lactococcus lactis]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Xaa-Pro dipeptidyl-peptidase]]
[[Category: Chich JF]]
[[Category: Chich, J F]]
[[Category: Delage MM]]
[[Category: Delage, M M]]
[[Category: Mechin I]]
[[Category: Mechin, I]]
[[Category: Rigolet P]]
[[Category: Rigolet, P]]
[[Category: Alpha beta hydrolase fold]]
[[Category: Hydrolase]]
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