1w5a
From Proteopedia
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| - | [[Image:1w5a.jpg|left|200px]] | + | [[Image:1w5a.jpg|left|200px]] |
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| - | '''FTSZ DIMER, MGGTP SOAK (M. JANNASCHII)''' | + | {{Structure |
| + | |PDB= 1w5a |SIZE=350|CAPTION= <scene name='initialview01'>1w5a</scene>, resolution 2.4Å | ||
| + | |SITE= <scene name='pdbsite=AC1:Gtp+Binding+Site+For+Chain+B'>AC1</scene> | ||
| + | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=GTP:GUANOSINE-5'-TRIPHOSPHATE'>GTP</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''FTSZ DIMER, MGGTP SOAK (M. JANNASCHII)''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1W5A is a [ | + | 1W5A is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1W5A OCA]. |
==Reference== | ==Reference== | ||
| - | Structural insights into FtsZ protofilament formation., Oliva MA, Cordell SC, Lowe J, Nat Struct Mol Biol. 2004 Dec;11(12):1243-50. Epub 2004 Nov 21. PMID:[http:// | + | Structural insights into FtsZ protofilament formation., Oliva MA, Cordell SC, Lowe J, Nat Struct Mol Biol. 2004 Dec;11(12):1243-50. Epub 2004 Nov 21. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15558053 15558053] |
[[Category: Methanocaldococcus jannaschii]] | [[Category: Methanocaldococcus jannaschii]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: z-ring]] | [[Category: z-ring]] | ||
| - | ''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 14:52:23 2008'' |
Revision as of 12:52, 20 March 2008
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| , resolution 2.4Å | |||||||
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| Coordinates: | save as pdb, mmCIF, xml | ||||||
FTSZ DIMER, MGGTP SOAK (M. JANNASCHII)
Overview
The prokaryotic tubulin homolog FtsZ polymerizes into a ring structure essential for bacterial cell division. We have used refolded FtsZ to crystallize a tubulin-like protofilament. The N- and C-terminal domains of two consecutive subunits in the filament assemble to form the GTPase site, with the C-terminal domain providing water-polarizing residues. A domain-swapped structure of FtsZ and biochemical data on purified N- and C-terminal domains show that they are independent. This leads to a model of how FtsZ and tubulin polymerization evolved by fusing two domains. In polymerized tubulin, the nucleotide-binding pocket is occluded, which leads to nucleotide exchange being the rate-limiting step and to dynamic instability. In our FtsZ filament structure the nucleotide is exchangeable, explaining why, in this filament, nucleotide hydrolysis is the rate-limiting step during FtsZ polymerization. Furthermore, crystal structures of FtsZ in different nucleotide states reveal notably few differences.
About this Structure
1W5A is a Single protein structure of sequence from Methanocaldococcus jannaschii. Full crystallographic information is available from OCA.
Reference
Structural insights into FtsZ protofilament formation., Oliva MA, Cordell SC, Lowe J, Nat Struct Mol Biol. 2004 Dec;11(12):1243-50. Epub 2004 Nov 21. PMID:15558053
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