1dvo

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{{STRUCTURE_1dvo| PDB=1dvo | SCENE= }}
{{STRUCTURE_1dvo| PDB=1dvo | SCENE= }}
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'''THE X-RAY CRYSTAL STRUCTURE OF FINO, A REPRESSOR OF BACTERIAL CONJUGATION'''
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===THE X-RAY CRYSTAL STRUCTURE OF FINO, A REPRESSOR OF BACTERIAL CONJUGATION===
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==Overview==
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The conjugative transfer of F-like plasmids is repressed by FinO, an RNA binding protein. FinO interacts with the F-plasmid encoded traJ mRNA and its antisense RNA, FinP, stabilizing FinP against endonucleolytic degradation and facilitating sense-antisense RNA recognition. Here we present the 2.0 A resolution X-ray crystal structure of FinO, lacking its flexible N-terminal extension. FinO adopts a novel, elongated, largely helical conformation. An N-terminal region, previously shown to contact RNA, forms a positively charged alpha-helix (helix 1) that protrudes 45 A from the central core of FinO. A C-terminal region of FinO that is implicated in RNA interactions also extends out from the central body of the protein, adopting a helical conformation and packing against the base of the N-terminal helix. A highly positively charged patch on the surface of the FinO core may present another RNA binding surface. The results of an in vitro RNA duplexing assay demonstrate that the flexible N-terminal region of FinO plays a key role in FinP-traJ RNA recognition, and supports our proposal that this region and the N-terminus of helix 1 interact with and stabilize paired, complementary RNA loops in a kissing complex.
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(as it appears on PubMed at http://www.pubmed.gov), where 10876242 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10876242}}
==About this Structure==
==About this Structure==
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[[Category: Repressor]]
[[Category: Repressor]]
[[Category: X-ray crystallography]]
[[Category: X-ray crystallography]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 14:20:11 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 23:41:22 2008''

Revision as of 20:41, 30 June 2008

Image:1dvo.png

Template:STRUCTURE 1dvo

THE X-RAY CRYSTAL STRUCTURE OF FINO, A REPRESSOR OF BACTERIAL CONJUGATION

Template:ABSTRACT PUBMED 10876242

About this Structure

1DVO is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.

Reference

Crystal structure of the bacterial conjugation repressor finO., Ghetu AF, Gubbins MJ, Frost LS, Glover JN, Nat Struct Biol. 2000 Jul;7(7):565-9. PMID:10876242

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