1bxv: Difference between revisions
New page: left|200px<br /> <applet load="1bxv" size="450" color="white" frame="true" align="right" spinBox="true" caption="1bxv, resolution 1.8Å" /> '''REDUCED PLASTOCYANIN... |
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==About this Structure== | ==About this Structure== | ||
1BXV is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Synechococcus_sp. Synechococcus sp.]] with CU as [[http://en.wikipedia.org/wiki/ligand ligand]]. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1BXV OCA]]. | 1BXV is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Synechococcus_sp. Synechococcus sp.]] with CU as [[http://en.wikipedia.org/wiki/ligand ligand]]. Structure known Active Site: CUB. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1BXV OCA]]. | ||
==Reference== | ==Reference== | ||
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[[Category: electron transfer]] | [[Category: electron transfer]] | ||
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Revision as of 14:11, 30 October 2007
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REDUCED PLASTOCYANIN FROM SYNECHOCOCCUS SP.
OverviewOverview
The crystal structures of oxidized and reduced plastocyanins from, Synechococcus sp. PCC 7942 have been determined at 1.9 and 1.8 A, resolution, respectively, at pH 5.0. The protein consists of only 91 amino, acid residues, the smallest number known for a plastocyanin, and, apparently lacks the mostly conserved acidic patch that is believed to be, important for recognition with electron-transfer partners. The protein has, two acidic residues, Glu42 and Glu85, around Tyr83, which is thought to be, a possible conduit for electrons, but these are neutralized by Arg88 and, Lys58. Residue Arg88 interacts with Tyr83 through a pi-pi interaction in, which the guanidinium group of the former completely overlaps the aromatic, ring of the tyrosine. Reduction of the protein at pH 5.0 causes a, ... [(full description)]
About this StructureAbout this Structure
1BXV is a [Single protein] structure of sequence from [Synechococcus sp.] with CU as [ligand]. Structure known Active Site: CUB. Full crystallographic information is available from [OCA].
ReferenceReference
Crystal structure determinations of oxidized and reduced plastocyanin from the cyanobacterium Synechococcus sp. PCC 7942., Inoue T, Sugawara H, Hamanaka S, Tsukui H, Suzuki E, Kohzuma T, Kai Y, Biochemistry. 1999 May 11;38(19):6063-9. PMID:10320332
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