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2j69

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[[Image:2j69.jpg|left|200px]]
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{{STRUCTURE_2j69| PDB=2j69 | SCENE= }}
{{STRUCTURE_2j69| PDB=2j69 | SCENE= }}
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'''BACTERIAL DYNAMIN-LIKE PROTEIN BDLP'''
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===BACTERIAL DYNAMIN-LIKE PROTEIN BDLP===
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==Overview==
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Dynamins form a superfamily of large mechano-chemical GTPases that includes the classical dynamins and dynamin-like proteins (DLPs). They are found throughout the Eukarya, functioning in core cellular processes such as endocytosis and organelle division. Many bacteria are predicted by sequence to possess large GTPases with the same multidomain architecture that is found in DLPs. Mechanistic dissection of dynamin family members has been impeded by a lack of high-resolution structural data currently restricted to the GTPase and pleckstrin homology domains, and the dynamin-related human guanylate-binding protein. Here we present the crystal structure of a cyanobacterial DLP in both nucleotide-free and GDP-associated conformation. The bacterial DLP shows dynamin-like qualities, such as helical self-assembly and tubulation of a lipid bilayer. In vivo, it localizes to the membrane in a manner reminiscent of FZL, a chloroplast-specific dynamin-related protein with which it shares sequence similarity. Our results provide structural and mechanistic insight that may be relevant across the dynamin superfamily. Concurrently, we show compelling similarity between a cyanobacterial and chloroplast DLP that, given the endosymbiotic ancestry of chloroplasts, questions the evolutionary origins of dynamins.
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(as it appears on PubMed at http://www.pubmed.gov), where 17122778 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17122778}}
==About this Structure==
==About this Structure==
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[[Category: Gtpase]]
[[Category: Gtpase]]
[[Category: Hydrolase]]
[[Category: Hydrolase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 08:24:12 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 12:16:41 2008''

Revision as of 09:16, 29 July 2008

Image:2j69.png

Template:STRUCTURE 2j69

BACTERIAL DYNAMIN-LIKE PROTEIN BDLP

Template:ABSTRACT PUBMED 17122778

About this Structure

2J69 is a Single protein structure of sequence from Nostoc punctiforme. Full crystallographic information is available from OCA.

Reference

A bacterial dynamin-like protein., Low HH, Lowe J, Nature. 2006 Dec 7;444(7120):766-9. Epub 2006 Nov 22. PMID:17122778

Page seeded by OCA on Tue Jul 29 12:16:41 2008

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