1foa: Difference between revisions

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[[Image:1foa.png|left|200px]]
==CRYSTAL STRUCTURE OF N-ACETYLGLUCOSAMINYLTRANSFERASE I==
<StructureSection load='1foa' size='340' side='right' caption='[[1foa]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1foa]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FOA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1FOA FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=UD1:URIDINE-DIPHOSPHATE-N-ACETYLGLUCOSAMINE'>UD1</scene><br>
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1fo8|1fo8]], [[1fo9|1fo9]]</td></tr>
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Alpha-1,3-mannosyl-glycoprotein_2-beta-N-acetylglucosaminyltransferase Alpha-1,3-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.1.101 2.4.1.101] </span></td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1foa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1foa OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1foa RCSB], [http://www.ebi.ac.uk/pdbsum/1foa PDBsum]</span></td></tr>
<table>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fo/1foa_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
N:-acetylglucosaminyltransferase I (GnT I) serves as the gateway from oligomannose to hybrid and complex N:-glycans and plays a critical role in mammalian development and possibly all metazoans. We have determined the X-ray crystal structure of the catalytic fragment of GnT I in the absence and presence of bound UDP-GlcNAc/Mn(2+) at 1.5 and 1.8 A resolution, respectively. The structures identify residues critical for substrate binding and catalysis and provide evidence for similarity, at the mechanistic level, to the deglycosylation step of retaining beta-glycosidases. The structuring of a 13 residue loop, resulting from UDP-GlcNAc/Mn(2+) binding, provides an explanation for the ordered sequential 'Bi Bi' kinetics shown by GnT I. Analysis reveals a domain shared with Bacillus subtilis glycosyltransferase SpsA, bovine beta-1,4-galactosyl transferase 1 and Escherichia coli N:-acetylglucosamine-1-phosphate uridyltransferase. The low sequence identity, conserved fold and related functional features shown by this domain define a superfamily whose members probably share a common ancestor. Sequence analysis and protein threading show that the domain is represented in proteins from several glycosyltransferase families.


{{STRUCTURE_1foa|  PDB=1foa  |  SCENE=  }}
X-ray crystal structure of rabbit N-acetylglucosaminyltransferase I: catalytic mechanism and a new protein superfamily.,Unligil UM, Zhou S, Yuwaraj S, Sarkar M, Schachter H, Rini JM EMBO J. 2000 Oct 16;19(20):5269-80. PMID:11032794<ref>PMID:11032794</ref>


===CRYSTAL STRUCTURE OF N-ACETYLGLUCOSAMINYLTRANSFERASE I===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_11032794}}
 
==About this Structure==
[[1foa]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FOA OCA].


==See Also==
==See Also==
*[[O-GlcNAc transferase|O-GlcNAc transferase]]
*[[O-GlcNAc transferase|O-GlcNAc transferase]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:011032794</ref><ref group="xtra">PMID:011467936</ref><ref group="xtra">PMID:019229296</ref><references group="xtra"/>
__TOC__
</StructureSection>
[[Category: Alpha-1,3-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase]]
[[Category: Alpha-1,3-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase]]
[[Category: Oryctolagus cuniculus]]
[[Category: Oryctolagus cuniculus]]

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