1jf9

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|GENE= NIFS/CSDB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])
|GENE= NIFS/CSDB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli])
|DOMAIN=<span class='plainlinks'>[http://www.ncbi.nlm.nih.gov/Structure/cdd/cddsrv.cgi?uid=COG0520 csdA], [http://www.ncbi.nlm.nih.gov/Structure/cdd/cddsrv.cgi?uid=PRK09295 PRK09295]</span>
|DOMAIN=<span class='plainlinks'>[http://www.ncbi.nlm.nih.gov/Structure/cdd/cddsrv.cgi?uid=COG0520 csdA], [http://www.ncbi.nlm.nih.gov/Structure/cdd/cddsrv.cgi?uid=PRK09295 PRK09295]</span>
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1jf9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jf9 OCA], [http://www.ebi.ac.uk/pdbsum/1jf9 PDBsum], [http://www.fli-leibniz.de/cgi-bin/ImgLib.pl?CODE=1kfv JenaLib], [http://www.rcsb.org/pdb/explore.do?structureId=1jf9 RCSB]</span>
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|RELATEDENTRY=
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1jf9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jf9 OCA], [http://www.ebi.ac.uk/pdbsum/1jf9 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1jf9 RCSB]</span>
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[[Category: structural genomic]]
[[Category: structural genomic]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Mar 26 05:54:00 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 21:32:48 2008''

Revision as of 18:32, 30 March 2008

Image:1jf9.gif


PDB ID 1jf9

Drag the structure with the mouse to rotate
, resolution 2.Å
Ligands:
Gene: NIFS/CSDB (Escherichia coli)
Activity: Selenocysteine lyase, with EC number 4.4.1.16
Domains: csdA, PRK09295
Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



Crystal Structure of selenocysteine lyase


Overview

The Escherichia coli NifS CsdB protein is a member of the homodimeric pyridoxal 5'-phosphate (PLP)-dependent family of enzymes. These enzymes are capable of decomposing cysteine or selenocysteine into L-alanine and sulfur or selenium, respectively. E. coli NifS CsdB has a high specificity for L-selenocysteine in comparison to l-cysteine, suggesting a role for this enzyme is selenium metabolism. The 2.0 A crystal structure of E. coli NifS CsdB reveals a high-resolution view of the active site of this enzyme in apo-, persulfide, perselenide, and selenocysteine-bound intermediates, suggesting a mechanism for the stabilization of the enzyme persulfide and perselenide intermediates during catalysis, a necessary intermediate in the formation of sulfur and selenium containing metabolites.

About this Structure

1JF9 is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.

Reference

Analysis of the E. coli NifS CsdB protein at 2.0 A reveals the structural basis for perselenide and persulfide intermediate formation., Lima CD, J Mol Biol. 2002 Feb 1;315(5):1199-208. PMID:11827487

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