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1uun

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<StructureSection load='1uun' size='340' side='right' caption='[[1uun]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
<StructureSection load='1uun' size='340' side='right' caption='[[1uun]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[1uun]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Mycobacterium_smegmatis Mycobacterium smegmatis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UUN OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1UUN FirstGlance]. <br>
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<table><tr><td colspan='2'>[[1uun]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_smegmatis"_trevisan_1889 "bacillus smegmatis" trevisan 1889]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UUN OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1UUN FirstGlance]. <br>
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</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1uun FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uun OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1uun RCSB], [http://www.ebi.ac.uk/pdbsum/1uun PDBsum]</span></td></tr>
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</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1uun FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uun OCA], [http://pdbe.org/1uun PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1uun RCSB], [http://www.ebi.ac.uk/pdbsum/1uun PDBsum]</span></td></tr>
</table>
</table>
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== Function ==
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[[http://www.uniprot.org/uniprot/MSPA_MYCS2 MSPA_MYCS2]] The major porin in this organism, forms a water-filled channel which favors the permeation of cations, amino acids, iron Fe(3+) and less efficiently phosphate. Does not transport Fe-ExoMS, the predominant siderophore. Plays a role in transport of beta-lactamase and hydrophilic fluoroquinolone antibiotics such as norfloxacin as well as chloramphenicol. There are about 2400 porins in wild-type, 800 in an mspA deletion and 150 in a double mspA-mspC deletion. Different conductance values with maxima at 2.3 and 4.6 nanosiemens might be caused by a simultaneous reconstitution of MspA channels into the membrane or by the existence of different MspA conformations.<ref>PMID:10476028</ref> <ref>PMID:16238622</ref> <ref>PMID:17209034</ref> <ref>PMID:18559650</ref> <ref>PMID:20952578</ref>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
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<div class="pdbe-citations 1uun" style="background-color:#fffaf0;"></div>
==See Also==
==See Also==
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Mycobacterium smegmatis]]
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[[Category: Bacillus smegmatis trevisan 1889]]
[[Category: Faller, M]]
[[Category: Faller, M]]
[[Category: Niederweis, M]]
[[Category: Niederweis, M]]

Revision as of 18:19, 10 September 2015

MAIN PORIN FROM MYCOBACTERIA SMEGMATIS (MSPA)

1uun, resolution 2.50Å

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