2bsk: Difference between revisions
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[[Image:2bsk.jpg|left|200px]] | [[Image:2bsk.jpg|left|200px]] | ||
'''CRYSTAL STRUCTURE OF THE TIM9 TIM10 HEXAMERIC COMPLEX''' | {{Structure | ||
|PDB= 2bsk |SIZE=350|CAPTION= <scene name='initialview01'>2bsk</scene>, resolution 3.3Å | |||
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'''CRYSTAL STRUCTURE OF THE TIM9 TIM10 HEXAMERIC COMPLEX''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
2BSK is a [ | 2BSK is a [[Protein complex]] structure of sequences 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=2BSK OCA]. | ||
==Reference== | ==Reference== | ||
Crystal structure of the mitochondrial chaperone TIM9.10 reveals a six-bladed alpha-propeller., Webb CT, Gorman MA, Lazarou M, Ryan MT, Gulbis JM, Mol Cell. 2006 Jan 6;21(1):123-33. PMID:[http:// | Crystal structure of the mitochondrial chaperone TIM9.10 reveals a six-bladed alpha-propeller., Webb CT, Gorman MA, Lazarou M, Ryan MT, Gulbis JM, Mol Cell. 2006 Jan 6;21(1):123-33. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16387659 16387659] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
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[[Category: tim9]] | [[Category: tim9]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 16:06:10 2008'' | ||
Revision as of 17:06, 20 March 2008
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CRYSTAL STRUCTURE OF THE TIM9 TIM10 HEXAMERIC COMPLEX
OverviewOverview
Import of proteins into mitochondria occurs by coordinated actions of preprotein translocases in the outer and inner membranes. Tim9 and Tim10 are translocase components of the intermembrane space, related to deafness-dystonia peptide 1 (DDP1). They coassemble into a hexamer, TIM9.10, which captures and chaperones precursors of inner membrane metabolite carriers as they exit the TOM channel in the outer membrane. The crystal structure of TIM9.10 reveals a previously undescribed alpha-propeller topology in which helical "blades" radiate from a narrow central pore lined with polar residues. The propeller blades are reminiscent of "tentacles" in chaperones Skp and prefoldin. In each TIM9.10 subunit, a signature "twin CX3C" motif forms two intramolecular disulfides. There is no obvious binding pocket for precursors, which we suggest employ the chaperone-like tentacles of TIM9.10 as surrogate lipid contacts. The first reported crystal structure of a mitochondrial translocase assembly provides insights into selectivity and regulation of precursor import.
About this StructureAbout this Structure
2BSK is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
ReferenceReference
Crystal structure of the mitochondrial chaperone TIM9.10 reveals a six-bladed alpha-propeller., Webb CT, Gorman MA, Lazarou M, Ryan MT, Gulbis JM, Mol Cell. 2006 Jan 6;21(1):123-33. PMID:16387659
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