1e29: Difference between revisions

Revision as of 13:23, 21 February 2008

PSII ASSOCIATED CYTOCHROME C549 FROM SYNECHOCYSTIS SP.

OverviewOverview

The crystal structure of low-potential cytochrome c549, an extrinsic component of the photosystem II (PS II) from Synechocystis sp. PCC 6803, was obtained directly from single-wavelength 1.21 A resolution diffraction data. This is the first monodomain bis-histidinyl monoheme cytochrome c to be structurally characterized. The extended N-terminal region of c549 builds up a two-strand antiparallel beta-sheet in a hairpin motif, which extends through two molecules owing to crystal packing. Both peptide termini are involved in crystal contacts, which may explain their protrusion out of the globular fold. The C-terminus is preceded by a 9 A-long hydrophobic finger extending from a positively charged base and could be involved in PSII interactions, as well as a protruding negative patch built by a set of conserved acidic residues among c549 sequences.

About this StructureAbout this Structure

1E29 is a Single protein structure of sequence from Synechocystis sp. with and as ligands. Full crystallographic information is available from OCA.

ReferenceReference

Crystal structure of low-potential cytochrome c549 from Synechocystis sp. PCC 6803 at 1.21 A resolution., Frazao C, Enguita FJ, Coelho R, Sheldrick GM, Navarro JA, Hervas M, De la Rosa MA, Carrondo MA, J Biol Inorg Chem. 2001 Mar;6(3):324-32. PMID:11315568

Page seeded by OCA on Thu Feb 21 12:23:01 2008

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OCA

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-[[Image:1e29.gif|left|200px]]<br /><applet load="1e29" size="450" color="white" frame="true" align="right" spinBox="true"
+[[Image:1e29.gif|left|200px]]<br /><applet load="1e29" size="350" color="white" frame="true" align="right" spinBox="true"
 caption="1e29, resolution 1.21&Aring;" />
 '''PSII ASSOCIATED CYTOCHROME C549 FROM SYNECHOCYSTIS SP.'''<br />
 ==Overview==
-The crystal structure of low-potential cytochrome c549, an extrinsic, component of the photosystem II (PS II) from Synechocystis sp. PCC 6803, was obtained directly from single-wavelength 1.21 A resolution diffraction, data. This is the first monodomain bis-histidinyl monoheme cytochrome c to, be structurally characterized. The extended N-terminal region of c549, builds up a two-strand antiparallel beta-sheet in a hairpin motif, which, extends through two molecules owing to crystal packing. Both peptide, termini are involved in crystal contacts, which may explain their, protrusion out of the globular fold. The C-terminus is preceded by a 9, A-long hydrophobic finger extending from a positively charged base and, could be involved in PSII interactions, as well as a protruding negative, patch built by a set of conserved acidic residues among c549 sequences.
+The crystal structure of low-potential cytochrome c549, an extrinsic component of the photosystem II (PS II) from Synechocystis sp. PCC 6803, was obtained directly from single-wavelength 1.21 A resolution diffraction data. This is the first monodomain bis-histidinyl monoheme cytochrome c to be structurally characterized. The extended N-terminal region of c549 builds up a two-strand antiparallel beta-sheet in a hairpin motif, which extends through two molecules owing to crystal packing. Both peptide termini are involved in crystal contacts, which may explain their protrusion out of the globular fold. The C-terminus is preceded by a 9 A-long hydrophobic finger extending from a positively charged base and could be involved in PSII interactions, as well as a protruding negative patch built by a set of conserved acidic residues among c549 sequences.
 ==About this Structure==
-E29 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Synechocystis_sp. Synechocystis sp.] with CA and HEC as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1E29 OCA].
+E29 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Synechocystis_sp. Synechocystis sp.] with <scene name='pdbligand=CA:'>CA</scene> and <scene name='pdbligand=HEC:'>HEC</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1E29 OCA].
 ==Reference==
@@ Line 14: / Line 14: @@
 [[Category: Synechocystis sp.]]
 [[Category: Coelho, R.]]
-[[Category: Enguita, F.J.]]
+[[Category: Enguita, F J.]]
 [[Category: Frazao, C.]]
-[[Category: Sheldrick, G.M.]]
+[[Category: Sheldrick, G M.]]
 [[Category: CA]]
 [[Category: HEC]]
@@ Line 25: / Line 25: @@
 [[Category: psii modulator]]
-''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 13:44:29 2007''
+''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 12:23:01 2008''