1kog: Difference between revisions
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|PDB= 1kog |SIZE=350|CAPTION= <scene name='initialview01'>1kog</scene>, resolution 3.50Å | |PDB= 1kog |SIZE=350|CAPTION= <scene name='initialview01'>1kog</scene>, resolution 3.50Å | ||
|SITE= | |SITE= | ||
|LIGAND= <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene> and <scene name='pdbligand=TSB:5 | |LIGAND= <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene> and <scene name='pdbligand=TSB:5'-O-(N-(L-THREONYL)-SULFAMOYL)ADENOSINE'>TSB</scene> | ||
|ACTIVITY= [http://en.wikipedia.org/wiki/Threonine--tRNA_ligase Threonine--tRNA ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.1.1.3 6.1.1.3] | |ACTIVITY= [http://en.wikipedia.org/wiki/Threonine--tRNA_ligase Threonine--tRNA ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.1.1.3 6.1.1.3] | ||
|GENE= | |GENE= | ||
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[[Category: rna stem-loop]] | [[Category: rna stem-loop]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 23 12:30:58 2008'' | ||
Revision as of 13:30, 23 March 2008
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| , resolution 3.50Å | |||||||
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| Ligands: | and | ||||||
| Activity: | Threonine--tRNA ligase, with EC number 6.1.1.3 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of E. coli threonyl-tRNA synthetase interacting with the essential domain of its mRNA operator
OverviewOverview
Escherichia coli threonyl-tRNA synthetase (ThrRS) represses the translation of its own messenger RNA by binding to an operator located upstream of the initiation codon. The crystal structure of the complex between the core of ThrRS and the essential domain of the operator shows that the mRNA uses the recognition mode of the tRNA anticodon loop to initiate binding. The final positioning of the operator, upon which the control mechanism is based, relies on a characteristic RNA motif adapted to the enzyme surface. The finding of other thrS operators that have this conserved motif leads to a generalization of this regulatory mechanism to a subset of Gram-negative bacteria.
About this StructureAbout this Structure
1KOG is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
ReferenceReference
Structural basis of translational control by Escherichia coli threonyl tRNA synthetase., Torres-Larios A, Dock-Bregeon AC, Romby P, Rees B, Sankaranarayanan R, Caillet J, Springer M, Ehresmann C, Ehresmann B, Moras D, Nat Struct Biol. 2002 May;9(5):343-7. PMID:11953757
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