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'''Crystal structure of Escherichia coli MobB.''' | '''Crystal structure of Escherichia coli MobB.''' | ||
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[[Category: Rangarajan, S E.]] | [[Category: Rangarajan, S E.]] | ||
[[Category: Tocilj, A.]] | [[Category: Tocilj, A.]] | ||
[[Category: | [[Category: Bsgi]] | ||
[[Category: | [[Category: Crystal structure]] | ||
[[Category: | [[Category: Mobb]] | ||
[[Category: | [[Category: Molybdopterin cofactor biosynthesis]] | ||
[[Category: | [[Category: Montreal-kingston bacterial structural genomics initiative]] | ||
[[Category: | [[Category: Structural genomic]] | ||
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Revision as of 01:51, 3 May 2008
Crystal structure of Escherichia coli MobB.
Overview
The crystal structure of Escherichia coli MobB, an enzyme involved in the final step of molybdenum-cofactor biosynthesis, forms intertwined dimers. Each molecule consists of two segments and requires the second monomer for stable folding. Dimerization buries a quarter of the solvent-accessible area of the monomer. These dimers assemble into a hexagonal lattice with P6(4)22 symmetry and occupy only approximately 25% of the unit-cell volume. The symmetry-related dimers associate tightly into a helical structure with a diameter of 250 A and a pitch of 98 A. Two such helices are intertwined, shifted by 49 A along the sixfold axis. Within the crystal, these helices form thin-walled cylinders with an external diameter of 250 A and an internal diameter of 190 A. Their center is filled with solvent. These cylinders pack closely together, forming a hexagonal lattice with the highest possible packing density. This arrangement of dimers allows extensive intermolecular contacts with 75% solvent content in the crystal.
About this Structure
1P9N is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
Reference
Molecules of Escherichia coli MobB assemble into densely packed hollow cylinders in a crystal lattice with 75% solvent content., Rangarajan SE, Tocilj A, Li Y, Iannuzzi P, Matte A, Cygler M, Acta Crystallogr D Biol Crystallogr. 2003 Dec;59(Pt 12):2348-52. Epub 2003, Nov 27. PMID:14646116 Page seeded by OCA on Sat May 3 04:51:20 2008
Proteopedia Page Contributors and Editors (what is this?)
- Pages with broken file links
- Escherichia coli
- Single protein
- BSGI, Montreal-Kingston Bacterial Structural Genomics Initiative.
- Cygler, M.
- Iannuzzi, P.
- Li, Y.
- Matte, A.
- Rangarajan, S E.
- Tocilj, A.
- Bsgi
- Crystal structure
- Mobb
- Molybdopterin cofactor biosynthesis
- Montreal-kingston bacterial structural genomics initiative
- Structural genomic