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3nku

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{{STRUCTURE_3nku| PDB=3nku | SCENE= }}
 
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===Crystal structure of the N-terminal domain of DrrA/SidM from Legionella pneumophila===
 
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{{ABSTRACT_PUBMED_20651120}}
 
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==Function==
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==Crystal structure of the N-terminal domain of DrrA/SidM from Legionella pneumophila==
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[[http://www.uniprot.org/uniprot/Q29ST3_LEGPN Q29ST3_LEGPN]] Virulence effector that plays a key role in hijacking the host vesicular trafficking by recruiting the small guanosine triphosphatase (GTPase) Rab1 to the cytosolic face of the Legionella-containing vacuole (LCVs). Acts as a GDP-GTP exchange factor (GEF) for the small GTPase Rab1 (RAB1A, RAB1B or RAB1C), thereby converting Rab1 to an active GTP-bound state, leading to the incorporation of Rab1 into LCVs. Also shows RabGDI displacement factor (GDF) activity; however, this probably represents a passive activity following the GEF activity. Also acts as an adenylyltransferase by mediating the addition of adenosine 5'-monophosphate (AMP) to 'Tyr-77' of host RAB1B, thereby rendering RAB1B constitutively active. Also has adenylyltransferase activity towards Rab6 and Rab35. Also displays guanylyltransferase activity by mediating the addition of guanosine 5'-monophosphate (GMP) to host RAB1B in vitro; however such activity remains uncertain in vivo. Specifically binds phosphatidylinositol 4-phosphate (PtdIns(4)P) lipids on the cytosolic surface of the phagosomal membrane shortly after infection.<ref>PMID:16906144</ref> <ref>PMID:17952054</ref> <ref>PMID:20651120</ref>
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<StructureSection load='3nku' size='340' side='right'caption='[[3nku]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
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== Structural highlights ==
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==About this Structure==
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<table><tr><td colspan='2'>[[3nku]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Legionella_pneumophila_subsp._pneumophila_str._Philadelphia_1 Legionella pneumophila subsp. pneumophila str. Philadelphia 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3NKU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3NKU FirstGlance]. <br>
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[[3nku]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Legionella_pneumophila_subsp._pneumophila Legionella pneumophila subsp. pneumophila]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3NKU OCA].
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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]] 2.1&#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=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=PGE:TRIETHYLENE+GLYCOL'>PGE</scene></td></tr>
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==Reference==
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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=3nku FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3nku OCA], [https://pdbe.org/3nku PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3nku RCSB], [https://www.ebi.ac.uk/pdbsum/3nku PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3nku ProSAT]</span></td></tr>
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<ref group="xtra">PMID:020651120</ref><references group="xtra"/><references/>
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</table>
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[[Category: Legionella pneumophila subsp. pneumophila]]
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== Function ==
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[[Category: Blankenfeldt, W.]]
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[https://www.uniprot.org/uniprot/DRRA_LEGPN DRRA_LEGPN] Virulence effector that plays a key role in hijacking the host vesicular trafficking by recruiting the small guanosine triphosphatase (GTPase) Rab1 to the cytosolic face of the Legionella-containing vacuole (LCVs). Acts as a GDP-GTP exchange factor (GEF) for the small GTPase Rab1 (RAB1A, RAB1B or RAB1C), thereby converting Rab1 to an active GTP-bound state, leading to the incorporation of Rab1 into LCVs. Also shows RabGDI displacement factor (GDF) activity; however, this probably represents a passive activity following the GEF activity. Also acts as an adenylyltransferase by mediating the addition of adenosine 5'-monophosphate (AMP) to 'Tyr-77' of host RAB1B, thereby rendering RAB1B constitutively active. Also has adenylyltransferase activity towards Rab6 and Rab35. Also displays guanylyltransferase activity by mediating the addition of guanosine 5'-monophosphate (GMP) to host RAB1B in vitro; however such activity remains uncertain in vivo. Specifically binds phosphatidylinositol 4-phosphate (PtdIns(4)P) lipids on the cytosolic surface of the phagosomal membrane shortly after infection.<ref>PMID:16906144</ref> <ref>PMID:17952054</ref> <ref>PMID:20651120</ref>
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[[Category: Goody, R S.]]
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== References ==
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[[Category: Itzen, A.]]
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<references/>
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[[Category: Mueller, M P.]]
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__TOC__
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[[Category: Peters, H.]]
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</StructureSection>
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[[Category: Adenylylation]]
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[[Category: Large Structures]]
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[[Category: Ampylation]]
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[[Category: Legionella pneumophila subsp. pneumophila str. Philadelphia 1]]
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[[Category: Drra]]
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[[Category: Blankenfeldt W]]
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[[Category: Posttranslational modification]]
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[[Category: Goody RS]]
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[[Category: Protein transport]]
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[[Category: Itzen A]]
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[[Category: Rab1]]
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[[Category: Mueller MP]]
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[[Category: Rab1b]]
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[[Category: Peters H]]
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[[Category: Sidm]]
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[[Category: Vesicular transport]]
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Current revision

Crystal structure of the N-terminal domain of DrrA/SidM from Legionella pneumophila

PDB ID 3nku

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