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[[Image:2mpr.jpg|left|200px]]
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{{STRUCTURE_2mpr|  PDB=2mpr  |  SCENE=  }}
'''MALTOPORIN FROM SALMONELLA TYPHIMURIUM'''


==MALTOPORIN FROM SALMONELLA TYPHIMURIUM==
<StructureSection load='2mpr' size='340' side='right'caption='[[2mpr]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2mpr]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Salmonella_enterica_subsp._enterica_serovar_Typhimurium Salmonella enterica subsp. enterica serovar Typhimurium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2MPR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2MPR 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]] 2.4&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BGC:BETA-D-GLUCOSE'>BGC</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=PRD_900065:beta-maltotriose'>PRD_900065</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=2mpr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2mpr OCA], [https://pdbe.org/2mpr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2mpr RCSB], [https://www.ebi.ac.uk/pdbsum/2mpr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2mpr ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/LAMB_SALTY LAMB_SALTY] Involved in the transport of maltose and maltodextrins. Does not act as a receptor for phages.
== 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/mp/2mpr_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=2mpr ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The maltodextrin-specific (malto-)porin from Salmonella typhimurium has been crystallized. Its three-dimensional structure was determined at 2.4 A resolution (1 A = 0.1 nm). A comparison with the structure of the homologous porin from Escherichia coli as well as with the sequences of other related porins showed that there are regions of appreciable sequence and structure variability, despite close overall similarity. The maltoporin structure was analyzed with a bound nitrophenyl-maltotrioside as well as without ligand. Maltotrioside binding had a negligible effect on the polypeptide structure. It binds at the pore eyelet assuming a conformation close to the natural amylose helix.


==Overview==
Structure of maltoporin from Salmonella typhimurium ligated with a nitrophenyl-maltotrioside.,Meyer JE, Hofnung M, Schulz GE J Mol Biol. 1997 Mar 7;266(4):761-75. PMID:9102468<ref>PMID:9102468</ref>
The maltodextrin-specific (malto-)porin from Salmonella typhimurium has been crystallized. Its three-dimensional structure was determined at 2.4 A resolution (1 A = 0.1 nm). A comparison with the structure of the homologous porin from Escherichia coli as well as with the sequences of other related porins showed that there are regions of appreciable sequence and structure variability, despite close overall similarity. The maltoporin structure was analyzed with a bound nitrophenyl-maltotrioside as well as without ligand. Maltotrioside binding had a negligible effect on the polypeptide structure. It binds at the pore eyelet assuming a conformation close to the natural amylose helix.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
2MPR is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Salmonella_typhimurium Salmonella typhimurium]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2MPR OCA].
</div>
<div class="pdbe-citations 2mpr" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Structure of maltoporin from Salmonella typhimurium ligated with a nitrophenyl-maltotrioside., Meyer JE, Hofnung M, Schulz GE, J Mol Biol. 1997 Mar 7;266(4):761-75. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/9102468 9102468]
*[[Porin 3D structures|Porin 3D structures]]
[[Category: Salmonella typhimurium]]
== References ==
[[Category: Single protein]]
<references/>
[[Category: Meyer, J E.W.]]
__TOC__
[[Category: Schulz, G E.]]
</StructureSection>
[[Category: Oligosaccharide binding]]
[[Category: Large Structures]]
[[Category: Outer membrane protein]]
[[Category: Salmonella enterica subsp. enterica serovar Typhimurium]]
[[Category: Phage recognition]]
[[Category: Meyer JEW]]
[[Category: Sugar transport]]
[[Category: Schulz GE]]
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Retrieved from "https://proteopedia.org/2mpr"