1nwg

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{{STRUCTURE_1nwg| PDB=1nwg | SCENE= }}
 
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===BETA-1,4-GALACTOSYLTRANSFERASE COMPLEX WITH ALPHA-LACTALBUMIN AND N-BUTANOYL-GLUCOAMINE===
 
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{{ABSTRACT_PUBMED_11485999}}
 
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==Function==
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==BETA-1,4-GALACTOSYLTRANSFERASE COMPLEX WITH ALPHA-LACTALBUMIN AND N-BUTANOYL-GLUCOAMINE==
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[[http://www.uniprot.org/uniprot/LALBA_MOUSE LALBA_MOUSE]] Regulatory subunit of lactose synthase, changes the substrate specificity of galactosyltransferase in the mammary gland making glucose a good acceptor substrate for this enzyme. This enables LS to synthesize lactose, the major carbohydrate component of milk. In other tissues, galactosyltransferase transfers galactose onto the N-acetylglucosamine of the oligosaccharide chains in glycoproteins. [[http://www.uniprot.org/uniprot/B4GT1_BOVIN B4GT1_BOVIN]] The Golgi complex form catalyzes the production of lactose in the lactating mammary gland and could also be responsible for the synthesis of complex-type N-linked oligosaccharides in many glycoproteins as well as the carbohydrate moieties of glycolipids. The cell surface form functions as a recognition molecule during a variety of cell to cell and cell to matrix interactions, as those occurring during development and egg fertilization, by binding to specific oligosaccharide ligands on opposing cells or in the extracellular matrix.
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<StructureSection load='1nwg' size='340' side='right'caption='[[1nwg]], [[Resolution|resolution]] 2.32&Aring;' scene=''>
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== Structural highlights ==
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==About this Structure==
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<table><tr><td colspan='2'>[[1nwg]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1jna 1jna]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NWG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NWG FirstGlance]. <br>
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[[1nwg]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1jna 1jna]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NWG 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]] 2.32&#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=BGN:N-BUTANOYL-2-AMINO-2-DEOXY-GLUCOPYRANOSIDE'>BGN</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
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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=1nwg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nwg OCA], [https://pdbe.org/1nwg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1nwg RCSB], [https://www.ebi.ac.uk/pdbsum/1nwg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1nwg ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/LALBA_MOUSE LALBA_MOUSE] Regulatory subunit of lactose synthase, changes the substrate specificity of galactosyltransferase in the mammary gland making glucose a good acceptor substrate for this enzyme. This enables LS to synthesize lactose, the major carbohydrate component of milk. In other tissues, galactosyltransferase transfers galactose onto the N-acetylglucosamine of the oligosaccharide chains in glycoproteins.
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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/nw/1nwg_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=1nwg ConSurf].
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<div style="clear:both"></div>
==See Also==
==See Also==
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*[[Galactosyltransferase|Galactosyltransferase]]
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*[[Alpha-lactalbumin 3D structures|Alpha-lactalbumin 3D structures]]
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*[[Lactalbumin|Lactalbumin]]
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*[[Glycosyltransferase 3D structures|Glycosyltransferase 3D structures]]
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__TOC__
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==Reference==
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</StructureSection>
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<ref group="xtra">PMID:011485999</ref><references group="xtra"/><references/>
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[[Category: Bos taurus]]
[[Category: Bos taurus]]
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[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: N-acetyllactosamine synthase]]
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[[Category: Qasba PK]]
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[[Category: Qasba, P K.]]
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[[Category: Ramakrishnan B]]
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[[Category: Ramakrishnan, B.]]
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[[Category: Shah PS]]
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[[Category: Shah, P S.]]
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[[Category: 4-galactosyltransferase]]
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[[Category: Alpha-lactalbumin]]
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[[Category: Beta1]]
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[[Category: N-butanoyl-glucoamine]]
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[[Category: Transferase activator-transferase complex]]
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Current revision

BETA-1,4-GALACTOSYLTRANSFERASE COMPLEX WITH ALPHA-LACTALBUMIN AND N-BUTANOYL-GLUCOAMINE

PDB ID 1nwg

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