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==CRYSTAL STRUCTURES EXPLAIN FUNCTIONAL PROPERTIES OF TWO E. COLI PORINS==
==CRYSTAL STRUCTURES EXPLAIN FUNCTIONAL PROPERTIES OF TWO E. COLI PORINS==
<StructureSection load='1pho' size='340' side='right' caption='[[1pho]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
<StructureSection load='1pho' size='340' side='right'caption='[[1pho]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1pho]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PHO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1PHO FirstGlance]. <br>
<table><tr><td colspan='2'>[[1pho]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PHO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1PHO FirstGlance]. <br>
</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=1pho FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pho OCA], [http://pdbe.org/1pho PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1pho RCSB], [http://www.ebi.ac.uk/pdbsum/1pho PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1pho ProSAT]</span></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3&#8491;</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=1pho FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pho OCA], [https://pdbe.org/1pho PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1pho RCSB], [https://www.ebi.ac.uk/pdbsum/1pho PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1pho ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/PHOE_ECOLI PHOE_ECOLI]] Uptake of inorganic phosphate, phosphorylated compounds, and some other negatively charged solutes.  
[https://www.uniprot.org/uniprot/PHOE_ECOLI PHOE_ECOLI] Uptake of inorganic phosphate, phosphorylated compounds, and some other negatively charged solutes.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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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=1pho ConSurf].
</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=1pho ConSurf].
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<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Porins form aqueous channels that aid the diffusion of small hydrophilic molecules across the outer membrane of Gram-negative bacteria. The crystal structures of matrix porin and phosphoporin both reveal trimers of identical subunits, each subunit consisting of a 16-stranded anti-parallel beta-barrel containing a pore. A long loop inside the barrel contributes to a constriction of the channel where the charge distribution affects ion selectivity. The structures explain at the molecular level functional characteristics and their alterations by known mutations.


Crystal structures explain functional properties of two E. coli porins.,Cowan SW, Schirmer T, Rummel G, Steiert M, Ghosh R, Pauptit RA, Jansonius JN, Rosenbusch JP Nature. 1992 Aug 27;358(6389):727-33. PMID:1380671<ref>PMID:1380671</ref>
==See Also==
 
*[[Porin 3D structures|Porin 3D structures]]
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1pho" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bacillus coli migula 1895]]
[[Category: Escherichia coli]]
[[Category: Cowan, S W]]
[[Category: Large Structures]]
[[Category: Jansonius, J N]]
[[Category: Cowan SW]]
[[Category: Schirmer, T]]
[[Category: Jansonius JN]]
[[Category: Outer membrane protein]]
[[Category: Schirmer T]]

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