2cfa
From Proteopedia
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==About this Structure== | ==About this Structure== | ||
| - | 2CFA is a [[http://en.wikipedia.org/wiki/Protein_complex Protein complex]] structure of sequences from [[http://en.wikipedia.org/wiki/Paramecium_bursaria_chlorella_virus_1 Paramecium bursaria chlorella virus 1]] with CME and FAD as [[http://en.wikipedia.org/wiki/ligands ligands]]. Active as [[http://en.wikipedia.org/wiki/ | + | 2CFA is a [[http://en.wikipedia.org/wiki/Protein_complex Protein complex]] structure of sequences from [[http://en.wikipedia.org/wiki/Paramecium_bursaria_chlorella_virus_1 Paramecium bursaria chlorella virus 1]] with CME and FAD as [[http://en.wikipedia.org/wiki/ligands ligands]]. Active as [[http://en.wikipedia.org/wiki/Thymidylate_synthase_(FAD) Thymidylate synthase (FAD)]], with EC number [[http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.1.1.148 2.1.1.148]]. Structure known Active Site: AC1. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2CFA OCA]]. |
==Reference== | ==Reference== | ||
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[[Category: Paramecium bursaria chlorella virus 1]] | [[Category: Paramecium bursaria chlorella virus 1]] | ||
[[Category: Protein complex]] | [[Category: Protein complex]] | ||
| + | [[Category: Thymidylate synthase (FAD)]] | ||
[[Category: Bernauer, J.]] | [[Category: Bernauer, J.]] | ||
[[Category: Decottignies, P.]] | [[Category: Decottignies, P.]] | ||
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[[Category: tscp]] | [[Category: tscp]] | ||
| - | ''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Oct 30 | + | ''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Oct 30 10:35:36 2007'' |
Revision as of 08:30, 30 October 2007
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STRUCTURE OF VIRAL FLAVIN-DEPENDANT THYMIDYLATE SYNTHASE THYX
Overview
By using biochemical and structural analyses, we have investigated the, catalytic mechanism of the recently discovered flavin-dependent, thymidylate synthase ThyX from Paramecium bursaria chlorella virus-1, (PBCV-1). Site-directed mutagenesis experiments have identified several, residues implicated in either NADPH oxidation or deprotonation activity of, PBCV-1 ThyX. Chemical modification by diethyl pyrocarbonate and mass, spectroscopic analyses identified a histidine residue (His53) crucial for, NADPH oxidation and located in the vicinity of the redox active N-5 atom, of the FAD ring system. Moreover, we observed that the conformation of, active site key residues of PBCV-1 ThyX differs from earlier reported ThyX, structures, suggesting structural changes during catalysis. Steady-state, ... [(full description)]
About this Structure
2CFA is a [Protein complex] structure of sequences from [Paramecium bursaria chlorella virus 1] with CME and FAD as [ligands]. Active as [Thymidylate synthase (FAD)], with EC number [2.1.1.148]. Structure known Active Site: AC1. Full crystallographic information is available from [OCA].
Reference
Catalytic mechanism and structure of viral flavin-dependent thymidylate synthase ThyX., Graziani S, Bernauer J, Skouloubris S, Graille M, Zhou CZ, Marchand C, Decottignies P, van Tilbeurgh H, Myllykallio H, Liebl U, J Biol Chem. 2006 Aug 18;281(33):24048-57. Epub 2006 May 17. PMID:16707489
Page seeded by OCA on Tue Oct 30 10:35:36 2007
Categories: Paramecium bursaria chlorella virus 1 | Protein complex | Thymidylate synthase (FAD) | Bernauer, J. | Decottignies, P. | Graille, M. | Graziani, S. | Liebl, U. | Marchand, C. | Myllykallio, H. | Skouloubris, S. | Tilbeurgh, H.Van. | Zhou, C.Z. | CME | FAD | Fdts | Flavin dependent thymidylate synthase fad | Flavoprotein | Methyltransferase | Nucleotide biosynthesis | Paramecium bursaria chlorella virus-1 | Thyx | Transferase | Tscp
