View source for 4m99


==Acetyltransferase domain of PglB from Neisseria gonorrhoeae FA1090 in complex with acetyl coenzyme A==
<StructureSection load='4m99' size='340' side='right'caption='[[4m99]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4m99]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Neisseria_gonorrhoeae_FA_1090 Neisseria gonorrhoeae FA 1090]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4M99 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4M99 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACO:ACETYL+COENZYME+*A'>ACO</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></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=4m99 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4m99 OCA], [https://pdbe.org/4m99 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4m99 RCSB], [https://www.ebi.ac.uk/pdbsum/4m99 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4m99 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q5FAE1_NEIG1 Q5FAE1_NEIG1] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
UDP-N,N'-diacetylbacillosamine (UDP-diNAcBac) is a unique carbohydrate produced by a number of bacterial species and has been implicated in pathogenesis. The terminal step in the formation of this important bacterial sugar is catalyzed by an AcCoA-dependent acetyltransferase in both N- and O-linked protein glycosylation pathways. This bacterial acetyltransferase is a member of the left-handed beta-helix family and forms a homotrimer as the functional unit. While previous endeavors have focused on the Campylobacter jejuni acetyltransferase (PglD) from the N-linked glycosylation pathway, structural characterization of the homologous enzymes in the O-linked glycosylation pathways is lacking. Herein, we present the apo crystal structures of the acetyltransferase domain (ATD) from the bifunctional enzyme PglB (Neisseria gonorrhoeae) and the full-length acetyltransferase WeeI (Acinetobacter baumannii). Additionally, a PglB-ATD structure was solved in complex with AcCoA. Surprisingly, this structure reveals a contrasting binding mechanism for this substrate when compared to the AcCoA-bound PglD structure. A comparison between these findings with the previously solved PglD crystal structures illustrates a dichotomy among N- and O-linked glycosylation pathway enzymes. Based upon these structures, key residues in the UDP-4-amino and AcCoA binding pockets were mutated to determine their effect on binding and catalysis in PglD, PglB-ATD, and WeeI. Lastly, a phylogenetic analysis of the aforementioned acetyltransferases was employed to illuminate the diversity among N- and O-linked glycosylation pathway enzymes.

Biochemical analysis and structure determination of bacterial acetyltransferases responsible for the biosynthesis of UDP-N,N'-diacetylbacillosamine.,Morrison MJ, Imperiali B J Biol Chem. 2013 Sep 24. PMID:24064219<ref>PMID:24064219</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4m99" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Neisseria gonorrhoeae FA 1090]]
[[Category: Imperiali B]]
[[Category: Morrison MJ]]