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1dhp
From Proteopedia
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[[Image:1dhp.gif|left|200px]] | [[Image:1dhp.gif|left|200px]] | ||
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'''DIHYDRODIPICOLINATE SYNTHASE''' | '''DIHYDRODIPICOLINATE SYNTHASE''' | ||
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[[Category: Korndoerfer, I.]] | [[Category: Korndoerfer, I.]] | ||
[[Category: Mirwaldt, C.]] | [[Category: Mirwaldt, C.]] | ||
| - | [[Category: | + | [[Category: Dihydrodipicolinate]] |
| - | [[Category: | + | [[Category: Synthase]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 13:51:31 2008'' | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 10:51, 2 May 2008
DIHYDRODIPICOLINATE SYNTHASE
Overview
The crystal structure of dihydrodipicolinate synthase from E. coli was determined by multiple isomorphous replacement methods. The structure was refined at a resolution of 2.5 A and the final R-factor is 19.6% for 32,190 reflections between 10.0 A and 2.5 A and F > 2 sigma (F). The crystallographic asymmetric unit contains two monomers related by approximate 2-fold symmetry. A tetramer with approximate 222 symmetry is built up by crystallographic symmetry. The tetramer is almost planar with no contacts between the subunits related by the non-crystallographic dyad. The active sites are accessible from a wide water-filled channel in the center of the tetramer. The dihydrodipicolinate synthase monomer is composed of two domains. Each polypeptide chain is folded into an 8-fold alpha/beta barrel and a C-terminal alpha-helical domain comprising residues 224 to 292. The fold is similar to that of N-acetylneuraminate lyase. The active site lysine 161 is located in the alpha/beta barrel and has access via two entrances from the C-terminal side of the barrel.
About this Structure
1DHP is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
Reference
The crystal structure of dihydrodipicolinate synthase from Escherichia coli at 2.5 A resolution., Mirwaldt C, Korndorfer I, Huber R, J Mol Biol. 1995 Feb 10;246(1):227-39. PMID:7853400 Page seeded by OCA on Fri May 2 13:51:31 2008
