1s3a: Difference between revisions

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New page: left|200px<br /> <applet load="1s3a" size="450" color="white" frame="true" align="right" spinBox="true" caption="1s3a" /> '''NMR Solution Structure of Subunit B8 from H...
 
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[[Image:1s3a.gif|left|200px]]<br />
[[Image:1s3a.gif|left|200px]]<br /><applet load="1s3a" size="350" color="white" frame="true" align="right" spinBox="true"  
<applet load="1s3a" size="450" color="white" frame="true" align="right" spinBox="true"  
caption="1s3a" />
caption="1s3a" />
'''NMR Solution Structure of Subunit B8 from Human NADH-Ubiquinone Oxidoreductase Complex I (CI-B8)'''<br />
'''NMR Solution Structure of Subunit B8 from Human NADH-Ubiquinone Oxidoreductase Complex I (CI-B8)'''<br />


==Overview==
==Overview==
Subunit B8 from ubiquinone oxidoreductase (complex I) (CI-B8) is one of, several nuclear-encoded supernumerary subunits that are not present in, bacterial complex I. Its solution structure shows a thioredoxin fold with, highest similarities to the human thioredoxin mutant C73S and thioredoxin, 2 from Anabeana sp. Interestingly, these proteins contain active sites in, the same area, where the disulfide bond of oxidized CI-B8 is located. The, redox potential of this disulfide bond is -251.6 mV, comparing well to, that of disulfides in other thioredoxin-like proteins. Analysis of the, structure reveals a surface area that is exclusively composed of highly, conserved residues and thus most likely a subunit interaction site within, complex I.
Subunit B8 from ubiquinone oxidoreductase (complex I) (CI-B8) is one of several nuclear-encoded supernumerary subunits that are not present in bacterial complex I. Its solution structure shows a thioredoxin fold with highest similarities to the human thioredoxin mutant C73S and thioredoxin 2 from Anabeana sp. Interestingly, these proteins contain active sites in the same area, where the disulfide bond of oxidized CI-B8 is located. The redox potential of this disulfide bond is -251.6 mV, comparing well to that of disulfides in other thioredoxin-like proteins. Analysis of the structure reveals a surface area that is exclusively composed of highly conserved residues and thus most likely a subunit interaction site within complex I.


==About this Structure==
==About this Structure==
1S3A is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1S3A OCA].  
1S3A is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1S3A OCA].  


==Reference==
==Reference==
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[[Category: nmr]]
[[Category: nmr]]


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