1di0

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[[Image:1di0.gif|left|200px]]
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{{Structure
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1di0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1di0 OCA], [http://www.ebi.ac.uk/pdbsum/1di0 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1di0 RCSB]</span>
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'''CRYSTAL STRUCTURE OF LUMAZINE SYNTHASE FROM BRUCELLA ABORTUS'''
'''CRYSTAL STRUCTURE OF LUMAZINE SYNTHASE FROM BRUCELLA ABORTUS'''
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[[Category: Polikarpov, I.]]
[[Category: Polikarpov, I.]]
[[Category: Velikovsky, C A.]]
[[Category: Velikovsky, C A.]]
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[[Category: transferase]]
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[[Category: Transferase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 13:51:52 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 19:41:45 2008''
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Revision as of 10:51, 2 May 2008

Template:STRUCTURE 1di0

CRYSTAL STRUCTURE OF LUMAZINE SYNTHASE FROM BRUCELLA ABORTUS


Overview

We have determined the three-dimensional structure of 6, 7-dimethyl-8-ribityllumazine synthase (lumazine synthase) from Brucella abortus, the infectious organism of the disease brucellosis in animals. This enzyme catalyses the formation of 6, 7-dimethyl-8-ribityllumazine, the penultimate product in the synthesis of riboflavin. The three-dimensional X-ray crystal structure of the enzyme from B. abortus has been solved and refined at 2.7 A resolution to a final R-value of 0.18 (R(free)=0.23). The macromolecular assembly of the enzyme differs from that of the enzyme from Bacillus subtilis, the only other lumazine synthase structure known. While the protein from B. subtilis assembles into a 60 subunit icosahedral capsid built from 12 pentameric units, the enzyme from B. abortus is pentameric in its crystalline form. Nonetheless, the active sites of the two enzymes are virtually identical indicating inhibitors to theses enzymes could be effective pharmaceuticals across a broad species range. Furthermore, we compare the structures of the enzyme from B. subtilis and B. abortus and describe the C teminus structure which accounts for the differences in quaternary structure.

About this Structure

1DI0 is a Single protein structure of sequence from Brucella abortus. Full crystallographic information is available from OCA.

Reference

Divergence in macromolecular assembly: X-ray crystallographic structure analysis of lumazine synthase from Brucella abortus., Braden BC, Velikovsky CA, Cauerhff AA, Polikarpov I, Goldbaum FA, J Mol Biol. 2000 Apr 14;297(5):1031-6. PMID:10764570 Page seeded by OCA on Fri May 2 13:51:52 2008

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