2bm7: Difference between revisions

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[[Image:2bm7.gif|left|200px]]
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{{STRUCTURE_2bm7|  PDB=2bm7  |  SCENE=  }}  
{{STRUCTURE_2bm7|  PDB=2bm7  |  SCENE=  }}  


'''THE STRUCTURE OF MFPA (RV3361C, P3221 CRYSTAL FORM). THE PENTAPEPTIDE REPEAT PROTEIN FROM MYCOBACTERIUM TUBERCULOSIS FOLDS AS A RIGHT-HANDED QUADRILATERAL BETA-HELIX.'''
===THE STRUCTURE OF MFPA (RV3361C, P3221 CRYSTAL FORM). THE PENTAPEPTIDE REPEAT PROTEIN FROM MYCOBACTERIUM TUBERCULOSIS FOLDS AS A RIGHT-HANDED QUADRILATERAL BETA-HELIX.===




==Overview==
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Fluoroquinolones are gaining increasing importance in the treatment of tuberculosis. The expression of MfpA, a member of the pentapeptide repeat family of proteins from Mycobacterium tuberculosis, causes resistance to ciprofloxacin and sparfloxacin. This protein binds to DNA gyrase and inhibits its activity. Its three-dimensional structure reveals a fold, which we have named the right-handed quadrilateral beta helix, that exhibits size, shape, and electrostatic similarity to B-form DNA. This represents a form of DNA mimicry and explains both its inhibitory effect on DNA gyrase and fluoroquinolone resistance resulting from the protein's expression in vivo.
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{{ABSTRACT_PUBMED_15933203}}


==About this Structure==
==About this Structure==
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[[Category: Pentapeptide repeat protein,fluroquinolone resistance]]
[[Category: Pentapeptide repeat protein,fluroquinolone resistance]]
[[Category: Right-handed quadrilateral beta-helix]]
[[Category: Right-handed quadrilateral beta-helix]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 20:29:03 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 15:09:22 2008''

Revision as of 15:09, 29 July 2008

File:2bm7.png

Template:STRUCTURE 2bm7

THE STRUCTURE OF MFPA (RV3361C, P3221 CRYSTAL FORM). THE PENTAPEPTIDE REPEAT PROTEIN FROM MYCOBACTERIUM TUBERCULOSIS FOLDS AS A RIGHT-HANDED QUADRILATERAL BETA-HELIX.THE STRUCTURE OF MFPA (RV3361C, P3221 CRYSTAL FORM). THE PENTAPEPTIDE REPEAT PROTEIN FROM MYCOBACTERIUM TUBERCULOSIS FOLDS AS A RIGHT-HANDED QUADRILATERAL BETA-HELIX.

Template:ABSTRACT PUBMED 15933203

About this StructureAbout this Structure

2BM7 is a Single protein structure of sequence from Mycobacterium tuberculosis. Full crystallographic information is available from OCA.

ReferenceReference

A fluoroquinolone resistance protein from Mycobacterium tuberculosis that mimics DNA., Hegde SS, Vetting MW, Roderick SL, Mitchenall LA, Maxwell A, Takiff HE, Blanchard JS, Science. 2005 Jun 3;308(5727):1480-3. PMID:15933203

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