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[[Image:1nmm.png|left|200px]]


{{STRUCTURE_1nmm|  PDB=1nmm  |  SCENE=  }}
==beta-1,4-galactosyltransferase mutant Cys342Thr complex with alpha-lactalbumin and GlcNAc==
 
<StructureSection load='1nmm' size='340' side='right'caption='[[1nmm]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
===beta-1,4-galactosyltransferase mutant Cys342Thr complex with alpha-lactalbumin and GlcNAc===
== Structural highlights ==
 
<table><tr><td colspan='2'>[[1nmm]] 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=1jn8 1jn8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NMM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1NMM FirstGlance]. <br>
{{ABSTRACT_PUBMED_11485999}}
</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&#8491;</td></tr>
 
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PG4:TETRAETHYLENE+GLYCOL'>PG4</scene></td></tr>
==About this Structure==
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1nmm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nmm OCA], [https://pdbe.org/1nmm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1nmm RCSB], [https://www.ebi.ac.uk/pdbsum/1nmm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1nmm ProSAT]</span></td></tr>
[[1nmm]] is a 4 chain structure of [[Galactosyltransferase]] and [[Lactalbumin]] 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=1jn8 1jn8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1NMM OCA].  
</table>
== Function ==
[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.
== 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/nm/1nmm_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/main_output.php?pdb_ID=1nmm ConSurf].
<div style="clear:both"></div>


==See Also==
==See Also==
*[[Galactosyltransferase|Galactosyltransferase]]
*[[Alpha-lactalbumin 3D structures|Alpha-lactalbumin 3D structures]]
*[[Lactalbumin|Lactalbumin]]
*[[Glycosyltransferase 3D structures|Glycosyltransferase 3D structures]]
 
__TOC__
==Reference==
</StructureSection>
<ref group="xtra">PMID:011485999</ref><references group="xtra"/>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Qasba, P K.]]
[[Category: Qasba PK]]
[[Category: Ramakrishnan, B.]]
[[Category: Ramakrishnan B]]
[[Category: Shah, P S.]]
[[Category: Shah PS]]
[[Category: 4-galactosyltransferase]]
[[Category: Alpha-lactalbumin complex]]
[[Category: Beta1]]
[[Category: Cys342thr mutation]]
[[Category: Transferase activator-transferase complex]]

Latest revision as of 11:51, 10 April 2024

beta-1,4-galactosyltransferase mutant Cys342Thr complex with alpha-lactalbumin and GlcNAcbeta-1,4-galactosyltransferase mutant Cys342Thr complex with alpha-lactalbumin and GlcNAc

Structural highlights

1nmm is a 4 chain structure with sequence from Bos taurus and Mus musculus. This structure supersedes the now removed PDB entry 1jn8. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2Å
Ligands:, ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

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.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

1nmm, resolution 2.00Å

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