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1twq

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Crystal structure of the C-terminal PGN-binding domain of human PGRP-Ialpha in complex with PGN analog muramyl tripeptide

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Retrieved from "http://52.214.119.220/wiki/index.php/1twq"

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-[[Image:1twq.gif|left|200px]]
- {{Structure
+==Crystal structure of the C-terminal PGN-binding domain of human PGRP-Ialpha in complex with PGN analog muramyl tripeptide==
-|PDB= 1twq |SIZE=350|CAPTION= <scene name='initialview01'>1twq</scene>, resolution 2.30&Aring;
+<StructureSection load='1twq' size='340' side='right'caption='[[1twq]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
-|SITE=
+== Structural highlights ==
-|LIGAND= <scene name='pdbligand=AMU:BETA-N-ACETYLMURAMIC+ACID'>AMU</scene>, <scene name='pdbligand=GMA:4-AMIDO-4-CARBAMOYL-BUTYRIC+ACID'>GMA</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</scene>
+<table><tr><td colspan='2'>[[1twq]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TWQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1TWQ FirstGlance]. <br>
-|ACTIVITY=
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#8491;</td></tr>
-|GENE= PGLYRP3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AMU:BETA-N-ACETYLMURAMIC+ACID'>AMU</scene>, <scene name='pdbligand=GMA:4-AMIDO-4-CARBAMOYL-BUTYRIC+ACID'>GMA</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</scene></td></tr>
-|DOMAIN=
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1twq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1twq OCA], [https://pdbe.org/1twq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1twq RCSB], [https://www.ebi.ac.uk/pdbsum/1twq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1twq ProSAT]</span></td></tr>
-|RELATEDENTRY=[[1sk3|1SK3]], [[1sk4|1SK4]]
+</table>
-|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1twq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1twq OCA], [http://www.ebi.ac.uk/pdbsum/1twq PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1twq RCSB]</span>
+== Function ==
-}}
+[https://www.uniprot.org/uniprot/PGRP3_HUMAN PGRP3_HUMAN] Pattern receptor that binds to murein peptidoglycans (PGN) of Gram-positive bacteria. Has bactericidal activity towards Gram-positive bacteria. May kill Gram-positive bacteria by interfering with peptidoglycan biosynthesis. Binds also to Gram-negative bacteria, and has bacteriostatic activity towards Gram-negative bacteria. Plays a role in innate immunity.<ref>PMID:16354652</ref>
+== Evolutionary Conservation ==
-'''Crystal structure of the C-terminal PGN-binding domain of human PGRP-Ialpha in complex with PGN analog muramyl tripeptide'''
+[[Image:Consurf_key_small.gif|200px|right]]
+Check<jmol>
+  <jmolCheckbox>
-==Overview==
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/tw/1twq_consurf.spt"</scriptWhenChecked>
-Peptidoglycan (PGN) recognition proteins (PGRPs) are pattern-recognition receptors of the innate immune system that bind and, in some cases, hydrolyze bacterial PGNs. We determined the crystal structure, at 2.30-A resolution, of the C-terminal PGN-binding domain of human PGRP-Ialpha in complex with a muramyl tripeptide representing the core of lysine-type PGNs from Gram-positive bacteria. The peptide stem of the ligand is buried at the deep end of a long binding groove, with N-acetylmuramic acid situated in the middle of the groove, whose shallow end can accommodate a linked N-acetylglucosamine. Although most interactions are with the peptide, the glycan moiety also seems to be essential for specific recognition by PGRPs. Conservation of key PGN-contacting residues shows that all PGRPs employ this basic PGN-binding mode. The structure pinpoints variable residues that likely mediate discrimination between lysine- and diaminopimelic acid-type PGNs. We also propose a mechanism for PGN hydrolysis by Zn(2+)-containing PGRPs.
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <text>to colour the structure by Evolutionary Conservation</text>
-==About this Structure==
+  </jmolCheckbox>
-TWQ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TWQ OCA].
+</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=1twq ConSurf].
+<div style="clear:both"></div>
-==Reference==
+== References ==
-Structural basis for peptidoglycan binding by peptidoglycan recognition proteins., Guan R, Roychowdhury A, Ember B, Kumar S, Boons GJ, Mariuzza RA, Proc Natl Acad Sci U S A. 2004 Dec 7;101(49):17168-73. Epub 2004 Nov 30. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15572450 15572450]
+<references/>
+__TOC__
+</StructureSection>
 [[Category: Homo sapiens]]
-[[Category: Single protein]]
+[[Category: Large Structures]]
-[[Category: Boons, G A.]]
+[[Category: Boons G-A]]
-[[Category: Guan, R.]]
+[[Category: Guan R]]
-[[Category: Mariuzza, R A.]]
+[[Category: Mariuzza RA]]
-[[Category: Roychowdury, A.]]
+[[Category: Roychowdury A]]
-[[Category: complex]]
-[[Category: crystal structure]]
-[[Category: pgn analog]]
-[[Category: pgrp]]
-[[Category: pgrp-ialpha]]
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 00:02:10 2008''

1twq

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Crystal structure of the C-terminal PGN-binding domain of human PGRP-Ialpha in complex with PGN analog muramyl tripeptide

Structural highlights

Function

Evolutionary Conservation

References

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