1uun: Difference between revisions

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New page: left|200px<br /><applet load="1uun" size="450" color="white" frame="true" align="right" spinBox="true" caption="1uun, resolution 2.5Å" /> '''MAIN PORIN FROM MYCOB...
 
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[[Image:1uun.jpg|left|200px]]<br /><applet load="1uun" size="450" color="white" frame="true" align="right" spinBox="true"  
[[Image:1uun.jpg|left|200px]]<br /><applet load="1uun" size="350" color="white" frame="true" align="right" spinBox="true"  
caption="1uun, resolution 2.5&Aring;" />
caption="1uun, resolution 2.5&Aring;" />
'''MAIN PORIN FROM MYCOBACTERIA SMEGMATIS (MSPA)'''<br />
'''MAIN PORIN FROM MYCOBACTERIA SMEGMATIS (MSPA)'''<br />


==Overview==
==Overview==
Mycobacteria have low-permeability outer membranes that render them, resistant to most antibiotics. Hydrophilic nutrients can enter by way of, transmembrane-channel proteins called porins. An x-ray analysis of the, main porin from Mycobacterium smegmatis, MspA, revealed a homooctameric, goblet-like conformation with a single central channel. This is the first, structure of a mycobacterial outer-membrane protein. No structure-related, protein was found in the Protein Data Bank. MspA contains two consecutive, beta barrels with nonpolar outer surfaces that form a ribbon around the, porin, which is too narrow to fit the thickness of the mycobacterial outer, membrane in contemporary models.
Mycobacteria have low-permeability outer membranes that render them resistant to most antibiotics. Hydrophilic nutrients can enter by way of transmembrane-channel proteins called porins. An x-ray analysis of the main porin from Mycobacterium smegmatis, MspA, revealed a homooctameric goblet-like conformation with a single central channel. This is the first structure of a mycobacterial outer-membrane protein. No structure-related protein was found in the Protein Data Bank. MspA contains two consecutive beta barrels with nonpolar outer surfaces that form a ribbon around the porin, which is too narrow to fit the thickness of the mycobacterial outer membrane in contemporary models.


==About this Structure==
==About this Structure==
1UUN is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Mycobacterium_smegmatis Mycobacterium smegmatis]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1UUN OCA].  
1UUN is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of 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].  


==Reference==
==Reference==
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[[Category: Faller, M.]]
[[Category: Faller, M.]]
[[Category: Niederweis, M.]]
[[Category: Niederweis, M.]]
[[Category: Schulz, G.E.]]
[[Category: Schulz, G E.]]
[[Category: mycobacteria]]
[[Category: mycobacteria]]
[[Category: porin]]
[[Category: porin]]


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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:28:34 2008''