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1ww1

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{{STRUCTURE_1ww1| PDB=1ww1 | SCENE= }}
{{STRUCTURE_1ww1| PDB=1ww1 | SCENE= }}
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'''Crystal structure of tRNase Z from Thermotoga maritima'''
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===Crystal structure of tRNase Z from Thermotoga maritima===
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==Overview==
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The maturation of the tRNA 3' end is catalyzed by a tRNA 3' processing endoribonuclease named tRNase Z (RNase Z or 3'-tRNase) in eukaryotes, Archaea, and some bacteria. The tRNase Z generally cuts the 3' extra sequence from the precursor tRNA after the discriminator nucleotide. In contrast, Thermotoga maritima tRNase Z cleaves the precursor tRNA precisely after the CCA sequence. In this study, we determined the crystal structure of T. maritima tRNase Z at 2.6-A resolution. The tRNase Z has a four-layer alphabeta/betaalpha sandwich fold, which is classified as a metallo-beta-lactamase fold, and forms a dimer. The active site is located at one edge of the beta-sandwich and is composed of conserved motifs. Based on the structure, we constructed a docking model with the tRNAs that suggests how tRNase Z may recognize the substrate tRNAs.
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(as it appears on PubMed at http://www.pubmed.gov), where 15701599 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15701599}}
==About this Structure==
==About this Structure==
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[[Category: Rsgi]]
[[Category: Rsgi]]
[[Category: Structural genomic]]
[[Category: Structural genomic]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 14:12:42 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 14:28:37 2008''

Revision as of 11:28, 28 July 2008

Image:1ww1.png

Template:STRUCTURE 1ww1

Crystal structure of tRNase Z from Thermotoga maritima

Template:ABSTRACT PUBMED 15701599

About this Structure

1WW1 is a Single protein structure of sequence from Thermotoga maritima. Full crystallographic information is available from OCA.

Reference

Crystal structure of the tRNA 3' processing endoribonuclease tRNase Z from Thermotoga maritima., Ishii R, Minagawa A, Takaku H, Takagi M, Nashimoto M, Yokoyama S, J Biol Chem. 2005 Apr 8;280(14):14138-44. Epub 2005 Jan 27. PMID:15701599

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