3u1p: Difference between revisions

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[[Image:3u1p.png|left|200px]]
==Crystal Structure of M. tuberculosis LD-transpeptidase type 2 with Modified Catalytic Cysteine (C354)==
<StructureSection load='3u1p' size='340' side='right' caption='[[3u1p]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3u1p]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3U1P OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3U1P FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=CSO:S-HYDROXYCYSTEINE'>CSO</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3tx4|3tx4]], [[3tur|3tur]], [[3u1q|3u1q]], [[3vae|3vae]]</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">lppS, MT2594, Rv2518c ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1773 Mycobacterium tuberculosis])</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=3u1p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3u1p OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3u1p RCSB], [http://www.ebi.ac.uk/pdbsum/3u1p PDBsum]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
With multidrug-resistant cases of tuberculosis increasing globally, better antibiotic drugs and novel drug targets are becoming an urgent need. Traditional beta-lactam antibiotics that inhibit D,D-transpeptidases are not effective against mycobacteria, in part because mycobacteria rely mostly on L,D-transpeptidases for biosynthesis and maintenance of their peptidoglycan layer. This reliance plays a major role in drug resistance and persistence of Mycobacterium tuberculosis (Mtb) infections. The crystal structure at 1.7 A resolution of the Mtb L,D-transpeptidase Ldt(Mt2) containing a bound peptidoglycan fragment, reported here, provides information about catalytic site organization as well as substrate recognition by the enzyme. Based on our structural, kinetic, and calorimetric data, we propose a catalytic mechanism for Ldt(Mt2) in which both acyl-acceptor and acyl-donor substrates reach the catalytic site from the same, rather than different, entrances. Together, this information provides vital insights to facilitate development of drugs targeting this validated yet unexploited enzyme.


{{STRUCTURE_3u1p|  PDB=3u1p  |  SCENE=  }}
Targeting the Cell Wall of Mycobacterium tuberculosis: Structure and Mechanism of L,D-Transpeptidase 2.,Erdemli SB, Gupta R, Bishai WR, Lamichhane G, Amzel LM, Bianchet MA Structure. 2012 Dec 5;20(12):2103-15. doi: 10.1016/j.str.2012.09.016. Epub 2012, Oct 25. PMID:23103390<ref>PMID:23103390</ref>


===Crystal Structure of M. tuberculosis LD-transpeptidase type 2 with Modified Catalytic Cysteine (C354)===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_23103390}}
== References ==
 
<references/>
==About this Structure==
__TOC__
[[3u1p]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3U1P OCA].
</StructureSection>
[[Category: Mycobacterium tuberculosis]]
[[Category: Mycobacterium tuberculosis]]
[[Category: Amzel, L M.]]
[[Category: Amzel, L M]]
[[Category: Bianchet, M A.]]
[[Category: Bianchet, M A]]
[[Category: Erdemli, S.]]
[[Category: Erdemli, S]]
[[Category: Gupta, R.]]
[[Category: Gupta, R]]
[[Category: Lamichhane, G.]]
[[Category: Lamichhane, G]]
[[Category: Peptidoglycan binding protein]]
[[Category: Peptidoglycan binding protein]]
[[Category: Protein-peptidoglycan complex]]
[[Category: Protein-peptidoglycan complex]]

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