1tx0
From Proteopedia
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| - | [[Image:1tx0.jpg|left|200px]] | + | [[Image:1tx0.jpg|left|200px]] |
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| - | '''Dihydropteroate Synthetase, With Bound Product Analogue Pteroic Acid, From Bacillus anthracis''' | + | {{Structure |
| + | |PDB= 1tx0 |SIZE=350|CAPTION= <scene name='initialview01'>1tx0</scene>, resolution 2.15Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene> and <scene name='pdbligand=PT1:PTEROIC ACID'>PT1</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Dihydropteroate_synthase Dihydropteroate synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.5.1.15 2.5.1.15] | ||
| + | |GENE= folp ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=191218 Bacillus anthracis str. A2012]) | ||
| + | }} | ||
| + | |||
| + | '''Dihydropteroate Synthetase, With Bound Product Analogue Pteroic Acid, From Bacillus anthracis''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1TX0 is a [ | + | 1TX0 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_anthracis_str._a2012 Bacillus anthracis str. a2012]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TX0 OCA]. |
==Reference== | ==Reference== | ||
| - | Crystal structure of 7,8-dihydropteroate synthase from Bacillus anthracis: mechanism and novel inhibitor design., Babaoglu K, Qi J, Lee RE, White SW, Structure. 2004 Sep;12(9):1705-17. PMID:[http:// | + | Crystal structure of 7,8-dihydropteroate synthase from Bacillus anthracis: mechanism and novel inhibitor design., Babaoglu K, Qi J, Lee RE, White SW, Structure. 2004 Sep;12(9):1705-17. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15341734 15341734] |
[[Category: Bacillus anthracis str. a2012]] | [[Category: Bacillus anthracis str. a2012]] | ||
[[Category: Dihydropteroate synthase]] | [[Category: Dihydropteroate synthase]] | ||
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[[Category: pterine]] | [[Category: pterine]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:24:18 2008'' |
Revision as of 12:24, 20 March 2008
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| , resolution 2.15Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | and | ||||||
| Gene: | folp (Bacillus anthracis str. A2012) | ||||||
| Activity: | Dihydropteroate synthase, with EC number 2.5.1.15 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Dihydropteroate Synthetase, With Bound Product Analogue Pteroic Acid, From Bacillus anthracis
Overview
Dihydropterate synthase (DHPS) is the target for the sulfonamide class of antibiotics, but increasing resistance has encouraged the development of new therapeutic agents against this enzyme. One approach is to identify molecules that occupy the pterin binding pocket which is distinct from the pABA binding pocket that binds sulfonamides. Toward this goal, we present five crystal structures of DHPS from Bacillus anthracis, a well-documented bioterrorism agent. Three DHPS structures are already known, but our B. anthracis structures provide new insights into the enzyme mechanism. We show how an arginine side chain mimics the pterin ring in binding within the pterin binding pocket. The structures of two substrate analog complexes and the first structure of a DHPS-product complex offer new insights into the catalytic mechanism and the architecture of the pABA binding pocket. Finally, as an initial step in the development of pterin-based inhibitors, we present the structure of DHPS complexed with 5-nitro-6-methylamino-isocytosine.
About this Structure
1TX0 is a Single protein structure of sequence from Bacillus anthracis str. a2012. Full crystallographic information is available from OCA.
Reference
Crystal structure of 7,8-dihydropteroate synthase from Bacillus anthracis: mechanism and novel inhibitor design., Babaoglu K, Qi J, Lee RE, White SW, Structure. 2004 Sep;12(9):1705-17. PMID:15341734
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