1r3f
From Proteopedia
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|SITE= | |SITE= | ||
|LIGAND= | |LIGAND= | ||
| - | |ACTIVITY= [http://en.wikipedia.org/wiki/Pseudouridylate_synthase Pseudouridylate synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.70 4.2.1.70] | + | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Pseudouridylate_synthase Pseudouridylate synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.2.1.70 4.2.1.70] </span> |
|GENE= TRUB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]) | |GENE= TRUB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY=[[1r3e|1R3E]] | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1r3f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1r3f OCA], [http://www.ebi.ac.uk/pdbsum/1r3f PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1r3f RCSB]</span> | ||
}} | }} | ||
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[[Category: rna modification]] | [[Category: rna modification]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 23:22:41 2008'' |
Revision as of 20:22, 30 March 2008
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| , resolution 1.85Å | |||||||
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| Gene: | TRUB (Escherichia coli) | ||||||
| Activity: | Pseudouridylate synthase, with EC number 4.2.1.70 | ||||||
| Related: | 1R3E
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal Structure of tRNA Pseudouridine Synthase TruB and Its RNA Complex: RNA-protein Recognition Through a Combination of Rigid Docking and Induced Fit
Overview
RNA pseudouridine synthase, TruB, catalyzes pseudouridine formation at U55 in tRNA. This posttranscriptional modification is almost universally conserved and occurs in the T arm of most tRNAs. We determined the crystal structure of Escherichia coli TruB apo enzyme, as well as the structure of Thermotoga maritima TruB in complex with RNA. Comparison of the RNA-free and -bound forms of TruB reveals that this enzyme undergoes significant conformational changes on binding to its substrate. These conformational changes include the ordering of the "thumb loop," which binds right into the RNA hairpin loop, and a 10 degree hinge movement of the C-terminal domain. Along with the result of docking experiments performed on apo TruB, we conclude that TruB recognizes its RNA substrate through a combination of rigid docking and induced fit, with TruB first rigidly binding to its target and then maximizing the interaction by induced fit.
About this Structure
1R3F is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
Reference
Structure of tRNA pseudouridine synthase TruB and its RNA complex: RNA recognition through a combination of rigid docking and induced fit., Pan H, Agarwalla S, Moustakas DT, Finer-Moore J, Stroud RM, Proc Natl Acad Sci U S A. 2003 Oct 28;100(22):12648-53. Epub 2003 Oct 17. PMID:14566049
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