1us4: Difference between revisions
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==Overview== | ==Overview== | ||
As part of a structural genomics project, the crystal structure of a | As part of a structural genomics project, the crystal structure of a 314-amino-acid protein encoded by Thermus thermophilus HB8 gene TT1099 was solved to 1.75 A using the multiple-wavelength anomalous dispersion (MAD) method and a selenomethionine-incorporated protein. The native protein structure was solved to 1.5 A using the molecular-replacement method. Both structures revealed a bound ligand, L-glutamate or L-glutamine, and a fold related to the periplasmic substrate-binding proteins (PSBP). Further comparative structural analysis with other PSBP-fold proteins revealed the conservation of the predicted membrane permease binding surface area and indicated that the T. thermophilus HB8 molecule is most likely to be an L-glutamate and/or an L-glutamine-binding protein related to the cluster 3 periplasmic receptors. However, the geometry of ligand binding is unique to the T. thermophilus HB8 molecule. | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: Thermus thermophilus]] | [[Category: Thermus thermophilus]] | ||
[[Category: Inagaki, E.]] | [[Category: Inagaki, E.]] | ||
[[Category: RSGI, RIKEN | [[Category: RSGI, RIKEN Structural Genomics/Proteomics Initiative.]] | ||
[[Category: Tahirov, T | [[Category: Tahirov, T H.]] | ||
[[Category: Takahashi, H.]] | [[Category: Takahashi, H.]] | ||
[[Category: EDO]] | [[Category: EDO]] | ||
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[[Category: structural genomics]] | [[Category: structural genomics]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:27:43 2008'' | ||
Revision as of 13:27, 21 February 2008
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PUTATIVE GLUR0 LIGAND BINDING CORE WITH L-GLUTAMATE
Overview
As part of a structural genomics project, the crystal structure of a 314-amino-acid protein encoded by Thermus thermophilus HB8 gene TT1099 was solved to 1.75 A using the multiple-wavelength anomalous dispersion (MAD) method and a selenomethionine-incorporated protein. The native protein structure was solved to 1.5 A using the molecular-replacement method. Both structures revealed a bound ligand, L-glutamate or L-glutamine, and a fold related to the periplasmic substrate-binding proteins (PSBP). Further comparative structural analysis with other PSBP-fold proteins revealed the conservation of the predicted membrane permease binding surface area and indicated that the T. thermophilus HB8 molecule is most likely to be an L-glutamate and/or an L-glutamine-binding protein related to the cluster 3 periplasmic receptors. However, the geometry of ligand binding is unique to the T. thermophilus HB8 molecule.
About this Structure
1US4 is a Single protein structure of sequence from Thermus thermophilus with GLU and EDO as ligands. Known structural/functional Site: EGL. Full crystallographic information is available from OCA.
Reference
Structure of the Thermus thermophilus putative periplasmic glutamate/glutamine-binding protein., Takahashi H, Inagaki E, Kuroishi C, Tahirov TH, Acta Crystallogr D Biol Crystallogr. 2004 Oct;60(Pt 10):1846-54. Epub 2004, Sep 23. PMID:15388932
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