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1ypv
From Proteopedia
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| - | [[Image:1ypv.gif|left|200px]] | + | [[Image:1ypv.gif|left|200px]] |
| - | + | ||
| - | '''Structure of human thymidylate synthase at low salt conditions''' | + | {{Structure |
| + | |PDB= 1ypv |SIZE=350|CAPTION= <scene name='initialview01'>1ypv</scene>, resolution 1.80Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=PO4:PHOSPHATE ION'>PO4</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Thymidylate_synthase Thymidylate synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.1.45 2.1.1.45] | ||
| + | |GENE= TYMS, TS ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
| + | }} | ||
| + | |||
| + | '''Structure of human thymidylate synthase at low salt conditions''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==Disease== | ==Disease== | ||
| - | Known | + | Known diseases associated with this structure: Brugada syndrome 3 OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=114205 114205]], Timothy syndrome OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=114205 114205]] |
==About this Structure== | ==About this Structure== | ||
| - | 1YPV is a [ | + | 1YPV is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YPV OCA]. |
==Reference== | ==Reference== | ||
| - | Structure of human thymidylate synthase under low-salt conditions., Lovelace LL, Minor W, Lebioda L, Acta Crystallogr D Biol Crystallogr. 2005 May;61(Pt 5):622-7. Epub 2005, Apr 20. PMID:[http:// | + | Structure of human thymidylate synthase under low-salt conditions., Lovelace LL, Minor W, Lebioda L, Acta Crystallogr D Biol Crystallogr. 2005 May;61(Pt 5):622-7. Epub 2005, Apr 20. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15858273 15858273] |
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: thymidylate synthase]] | [[Category: thymidylate synthase]] | ||
| - | ''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 15:25:57 2008'' |
Revision as of 13:25, 20 March 2008
| |||||||
| , resolution 1.80Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Gene: | TYMS, TS (Homo sapiens) | ||||||
| Activity: | Thymidylate synthase, with EC number 2.1.1.45 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Structure of human thymidylate synthase at low salt conditions
Contents |
Overview
Human thymidylate synthase, a target in cancer chemotherapy, was crystallized from PEG 3350 with 30 mM ammonium sulfate (AS) in the crystallization medium. The crystals are isomorphous with the high-salt crystals ( approximately 2.0 M AS) and the structure has been solved and refined (R = 22.6%, R(free) = 24.3%) at 1.8 A resolution. The high- and low-AS-concentration structures are quite similar, with loop 181-197 is in the inactive conformation. Also, residues 95-106 and 129-135 (eukaryotic inserts region) show high mobility as assessed by poor electron density and high values of crystallographic temperature factors (residues 1-25 and 108-129 are disordered in both structures). The high mobility of this region may reflect the situation at physiological ionic strength. Of the four sulfate ions observed bound at 2.0 M AS, only two are present at 30 mM AS. The inactive conformation appears to be stabilized by the side chain of Val3 or a leucine residue from the disordered regions. The low-salt conditions of these crystals should be much more suitable for the study of thymidylate synthase inhibitors, especially those that utilize sulfate-binding sites to stabilize the inactive conformation of loop 181-197.
Disease
Known diseases associated with this structure: Brugada syndrome 3 OMIM:[114205], Timothy syndrome OMIM:[114205]
About this Structure
1YPV is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structure of human thymidylate synthase under low-salt conditions., Lovelace LL, Minor W, Lebioda L, Acta Crystallogr D Biol Crystallogr. 2005 May;61(Pt 5):622-7. Epub 2005, Apr 20. PMID:15858273
Page seeded by OCA on Thu Mar 20 15:25:57 2008
