1gmx
From Proteopedia
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| - | [[Image:1gmx.jpg|left|200px]] | + | [[Image:1gmx.jpg|left|200px]] |
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| - | '''ESCHERICHIA COLI GLPE SULFURTRANSFERASE''' | + | {{Structure |
| + | |PDB= 1gmx |SIZE=350|CAPTION= <scene name='initialview01'>1gmx</scene>, resolution 1.1Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene> and <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''ESCHERICHIA COLI GLPE SULFURTRANSFERASE''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1GMX is a [ | + | 1GMX is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GMX OCA]. |
==Reference== | ==Reference== | ||
| - | Escherichia coli GlpE is a prototype sulfurtransferase for the single-domain rhodanese homology superfamily., Spallarossa A, Donahue JL, Larson TJ, Bolognesi M, Bordo D, Structure. 2001 Nov;9(11):1117-25. PMID:[http:// | + | Escherichia coli GlpE is a prototype sulfurtransferase for the single-domain rhodanese homology superfamily., Spallarossa A, Donahue JL, Larson TJ, Bolognesi M, Bordo D, Structure. 2001 Nov;9(11):1117-25. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11709175 11709175] |
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: sulfurtransferase]] | [[Category: sulfurtransferase]] | ||
| - | ''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 11:25:12 2008'' |
Revision as of 09:25, 20 March 2008
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| , resolution 1.1Å | |||||||
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| Ligands: | and | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
ESCHERICHIA COLI GLPE SULFURTRANSFERASE
Overview
BACKGROUND: Rhodanese domains are structural modules occurring in the three major evolutionary phyla. They are found as single-domain proteins, as tandemly repeated modules in which the C-terminal domain only bears the properly structured active site, or as members of multidomain proteins. Although in vitro assays show sulfurtransferase or phosphatase activity associated with rhodanese or rhodanese-like domains, specific biological roles for most members of this homology superfamily have not been established. RESULTS: Eight ORFs coding for proteins consisting of (or containing) a rhodanese domain bearing the potentially catalytic Cys have been identified in the Escherichia coli K-12 genome. One of these codes for the 12-kDa protein GlpE, a member of the sn-glycerol 3-phosphate (glp) regulon. The crystal structure of GlpE, reported here at 1.06 A resolution, displays alpha/beta topology based on five beta strands and five alpha helices. The GlpE catalytic Cys residue is persulfurated and enclosed in a structurally conserved 5-residue loop in a region of positive electrostatic field. CONCLUSIONS: Relative to the two-domain rhodanese enzymes of known three-dimensional structure, GlpE displays substantial shortening of loops connecting alpha helices and beta sheets, resulting in radical conformational changes surrounding the active site. As a consequence, GlpE is structurally more similar to Cdc25 phosphatases than to bovine or Azotobacter vinelandii rhodaneses. Sequence searches through completed genomes indicate that GlpE can be considered to be the prototype structure for the ubiquitous single-domain rhodanese module.
About this Structure
1GMX is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
Reference
Escherichia coli GlpE is a prototype sulfurtransferase for the single-domain rhodanese homology superfamily., Spallarossa A, Donahue JL, Larson TJ, Bolognesi M, Bordo D, Structure. 2001 Nov;9(11):1117-25. PMID:11709175
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