1fg5

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[[Image:1fg5.jpg|left|200px]]
 
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==CRYSTAL STRUCTURE OF BOVINE ALPHA-1,3-GALACTOSYLTRANSFERASE CATALYTIC DOMAIN.==
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The line below this paragraph, containing "STRUCTURE_1fg5", creates the "Structure Box" on the page.
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<StructureSection load='1fg5' size='340' side='right'caption='[[1fg5]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1fg5]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FG5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FG5 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 2.8&#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></td></tr>
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{{STRUCTURE_1fg5| PDB=1fg5 | SCENE= }}
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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=1fg5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fg5 OCA], [https://pdbe.org/1fg5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fg5 RCSB], [https://www.ebi.ac.uk/pdbsum/1fg5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fg5 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/GGTA1_BOVIN GGTA1_BOVIN] Transfer of galactose from UDP-galactose to an acceptor molecule (R).
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fg/1fg5_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1fg5 ConSurf].
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<div style="clear:both"></div>
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'''CRYSTAL STRUCTURE OF BOVINE ALPHA-1,3-GALACTOSYLTRANSFERASE CATALYTIC DOMAIN.'''
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==See Also==
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*[[Glycosyltransferase 3D structures|Glycosyltransferase 3D structures]]
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__TOC__
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==Overview==
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</StructureSection>
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alpha1,3-galactosyltransferase (alpha3GalT, EC 2.4.1.151) is a Golgi-resident, type II transmembrane protein that transfers galactose from UDP-alpha-galactose to the terminal N:-acetyllactosamine unit of glycoconjugate glycans, producing the Galalpha1,3Galbeta1,4GlcNAc oligosaccharide structure present in most mammalian glycoproteins. Unlike most other mammals, humans and Old World primates do not possess alpha3GalT activity, which is relevant for the hyperacute rejection observed in pig-to-human xenotransplantation. The crystal structure of the catalytic domain of substrate-free bovine alpha3GalT, solved and refined to 2.3 A resolution, has a globular shape with an alpha/beta fold containing a narrow cleft on one face, and shares a UDP-binding domain (UBD) with the recently solved inverting glycosyltransferases. The substrate-bound complex, solved and refined to 2.5 A, allows the description of residues interacting directly with UDP-galactose. These structural data suggest that the strictly conserved residue E317 is likely to be the catalytic nucleophile involved in galactose transfer with retention of anomeric configuration as accomplished by this enzyme. Moreover, the alpha3GalT structure helps to identify amino acid residues that determine the specificities of the highly homologous ABO histo-blood group and glycosphingolipid glycosyltransferases.
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==About this Structure==
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1FG5 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FG5 OCA].
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==Reference==
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Bovine alpha1,3-galactosyltransferase catalytic domain structure and its relationship with ABO histo-blood group and glycosphingolipid glycosyltransferases., Gastinel LN, Bignon C, Misra AK, Hindsgaul O, Shaper JH, Joziasse DH, EMBO J. 2001 Feb 15;20(4):638-49. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11179209 11179209]
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[[Category: Bos taurus]]
[[Category: Bos taurus]]
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[[Category: N-acetyllactosaminide 3-alpha-galactosyltransferase]]
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[[Category: Large Structures]]
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[[Category: Single protein]]
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[[Category: Bignon C]]
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[[Category: Bignon, C.]]
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[[Category: Gastinel LN]]
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[[Category: Gastinel, L N.]]
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[[Category: Joziasse DH]]
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[[Category: Joziasse, D H.]]
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[[Category: Shaper JH]]
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[[Category: Shaper, J H.]]
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[[Category: Alpha beta alpha protein]]
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[[Category: Nucleotide binding protein]]
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[[Category: Rossmann fold]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 16:17:08 2008''
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Current revision

CRYSTAL STRUCTURE OF BOVINE ALPHA-1,3-GALACTOSYLTRANSFERASE CATALYTIC DOMAIN.

PDB ID 1fg5

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