1s3a
From Proteopedia
(New page: 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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'''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 | + | 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:// | + | 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]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 14:57:27 2008'' |
Revision as of 12:57, 21 February 2008
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NMR Solution Structure of Subunit B8 from Human NADH-Ubiquinone Oxidoreductase Complex I (CI-B8)
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.
About this Structure
1S3A is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
The oxidized subunit B8 from human complex I adopts a thioredoxin fold., Brockmann C, Diehl A, Rehbein K, Strauss H, Schmieder P, Korn B, Kuhne R, Oschkinat H, Structure. 2004 Sep;12(9):1645-54. PMID:15341729
Page seeded by OCA on Thu Feb 21 14:57:27 2008
Categories: Homo sapiens | Single protein | Brockmann, C. | Diehl, A. | Kuhne, R. | Oschkinat, H. | Rehbein, K. | Ci-b8 | Complex i | Ndufa2 | Nmr
