3bn4

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[[Image:3bn4.jpg|left|200px]]
[[Image:3bn4.jpg|left|200px]]
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{{Structure
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<!--
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|PDB= 3bn4 |SIZE=350|CAPTION= <scene name='initialview01'>3bn4</scene>, resolution 2.000&Aring;
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The line below this paragraph, containing "STRUCTURE_3bn4", creates the "Structure Box" on the page.
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|SITE= <scene name='pdbsite=AC1:So4+Binding+Site+For+Residue+E+123'>AC1</scene>, <scene name='pdbsite=AC2:So4+Binding+Site+For+Residue+C+123'>AC2</scene>, <scene name='pdbsite=AC3:So4+Binding+Site+For+Residue+A+123'>AC3</scene> and <scene name='pdbsite=AC4:So4+Binding+Site+For+Residue+B+123'>AC4</scene>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY=
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or leave the SCENE parameter empty for the default display.
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|GENE= ccmK1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1143 Synechocystis sp.])
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-->
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|DOMAIN=
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{{STRUCTURE_3bn4| PDB=3bn4 | SCENE= }}
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|RELATEDENTRY=[[2qzm|2QZM]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3bn4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3bn4 OCA], [http://www.ebi.ac.uk/pdbsum/3bn4 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=3bn4 RCSB]</span>
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}}
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'''Carboxysome Subunit, CcmK1'''
'''Carboxysome Subunit, CcmK1'''
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[[Category: Tanaka, S.]]
[[Category: Tanaka, S.]]
[[Category: Yeates, T O.]]
[[Category: Yeates, T O.]]
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[[Category: hexamer]]
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[[Category: Hexamer]]
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[[Category: structural protein]]
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[[Category: Structural protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 20:55:28 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 05:27:34 2008''
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Revision as of 17:55, 4 May 2008

Image:3bn4.jpg

Template:STRUCTURE 3bn4

Carboxysome Subunit, CcmK1


Overview

The carboxysome is a bacterial microcompartment that functions as a simple organelle by sequestering enzymes involved in carbon fixation. The carboxysome shell is roughly 800 to 1400 angstroms in diameter and is assembled from several thousand protein subunits. Previous studies have revealed the three-dimensional structures of hexameric carboxysome shell proteins, which self-assemble into molecular layers that most likely constitute the facets of the polyhedral shell. Here, we report the three-dimensional structures of two proteins of previously unknown function, CcmL and OrfA (or CsoS4A), from the two known classes of carboxysomes, at resolutions of 2.4 and 2.15 angstroms. Both proteins assemble to form pentameric structures whose size and shape are compatible with formation of vertices in an icosahedral shell. Combining these pentamers with the hexamers previously elucidated gives two plausible, preliminary atomic models for the carboxysome shell.

About this Structure

3BN4 is a Single protein structure of sequence from Synechocystis sp.. Full crystallographic information is available from OCA.

Reference

Atomic-level models of the bacterial carboxysome shell., Tanaka S, Kerfeld CA, Sawaya MR, Cai F, Heinhorst S, Cannon GC, Yeates TO, Science. 2008 Feb 22;319(5866):1083-6. PMID:18292340 Page seeded by OCA on Sun May 4 20:55:28 2008

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OCA

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