1syy
From Proteopedia
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| - | [[Image:1syy.gif|left|200px]] | + | [[Image:1syy.gif|left|200px]] |
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| - | '''Crystal structure of the R2 subunit of ribonucleotide reductase from Chlamydia trachomatis''' | + | {{Structure |
| + | |PDB= 1syy |SIZE=350|CAPTION= <scene name='initialview01'>1syy</scene>, resolution 1.70Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=FE:FE+(III)+ION'>FE</scene> and <scene name='pdbligand=PB:LEAD (II) ION'>PB</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Ribonucleoside-diphosphate_reductase Ribonucleoside-diphosphate reductase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.17.4.1 1.17.4.1] | ||
| + | |GENE= NRDB, CT828 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=813 Chlamydia trachomatis]) | ||
| + | }} | ||
| + | |||
| + | '''Crystal structure of the R2 subunit of ribonucleotide reductase from Chlamydia trachomatis''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1SYY is a [ | + | 1SYY is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Chlamydia_trachomatis Chlamydia trachomatis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SYY OCA]. |
==Reference== | ==Reference== | ||
| - | The radical site in chlamydial ribonucleotide reductase defines a new R2 subclass., Hogbom M, Stenmark P, Voevodskaya N, McClarty G, Graslund A, Nordlund P, Science. 2004 Jul 9;305(5681):245-8. PMID:[http:// | + | The radical site in chlamydial ribonucleotide reductase defines a new R2 subclass., Hogbom M, Stenmark P, Voevodskaya N, McClarty G, Graslund A, Nordlund P, Science. 2004 Jul 9;305(5681):245-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15247479 15247479] |
[[Category: Chlamydia trachomatis]] | [[Category: Chlamydia trachomatis]] | ||
[[Category: Ribonucleoside-diphosphate reductase]] | [[Category: Ribonucleoside-diphosphate reductase]] | ||
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[[Category: diiron; oxygen activation; iron coupled radical; immune evasion]] | [[Category: diiron; oxygen activation; iron coupled radical; immune evasion]] | ||
| - | ''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 14:11:26 2008'' |
Revision as of 12:11, 20 March 2008
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| , resolution 1.70Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | and | ||||||
| Gene: | NRDB, CT828 (Chlamydia trachomatis) | ||||||
| Activity: | Ribonucleoside-diphosphate reductase, with EC number 1.17.4.1 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of the R2 subunit of ribonucleotide reductase from Chlamydia trachomatis
Overview
Ribonucleotide reductase (RNR) synthesizes the deoxyribonucleotides for DNA synthesis. The R2 protein of normal class I ribonucleotide reductases contains a diiron site that produces a stable tyrosyl free radical, essential for enzymatic activity. Structural and electron paramagnetic resonance studies of R2 from Chlamydia trachomatis reveal a protein lacking a tyrosyl radical site. Instead, the protein yields an iron-coupled radical upon reconstitution. The coordinating structure of the diiron site is similar to that of diiron oxidases/monoxygenases and supports a role for this radical in the RNR mechanism. The specific ligand pattern in the C. trachomatis R2 metal site characterizes a new group of R2 proteins that so far has been found in eight organisms, three of which are human pathogens.
About this Structure
1SYY is a Single protein structure of sequence from Chlamydia trachomatis. Full crystallographic information is available from OCA.
Reference
The radical site in chlamydial ribonucleotide reductase defines a new R2 subclass., Hogbom M, Stenmark P, Voevodskaya N, McClarty G, Graslund A, Nordlund P, Science. 2004 Jul 9;305(5681):245-8. PMID:15247479
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