1a79

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[[Image:1a79.jpg|left|200px]]
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{{Structure
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1a79 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1a79 OCA], [http://www.ebi.ac.uk/pdbsum/1a79 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1a79 RCSB]</span>
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'''CRYSTAL STRUCTURE OF THE TRNA SPLICING ENDONUCLEASE FROM METHANOCOCCUS JANNASCHII'''
'''CRYSTAL STRUCTURE OF THE TRNA SPLICING ENDONUCLEASE FROM METHANOCOCCUS JANNASCHII'''
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[[Category: Li, H.]]
[[Category: Li, H.]]
[[Category: Trotta, C R.]]
[[Category: Trotta, C R.]]
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[[Category: endonuclease]]
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[[Category: Endonuclease]]
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[[Category: trna endonuclease]]
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[[Category: Trna endonuclease]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 09:55:16 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 18:34:46 2008''
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Revision as of 06:55, 2 May 2008

Image:1a79.jpg

Template:STRUCTURE 1a79

CRYSTAL STRUCTURE OF THE TRNA SPLICING ENDONUCLEASE FROM METHANOCOCCUS JANNASCHII


Overview

The splicing of transfer RNA precursors is similar in Eucarya and Archaea. In both kingdoms an endonuclease recognizes the splice sites and releases the intron, but the mechanism of splice site recognition is different in each kingdom. The crystal structure of the endonuclease from the archaeon Methanococcus jannaschii was determined to a resolution of 2.3 angstroms. The structure indicates that the cleavage reaction is similar to that of ribonuclease A and the arrangement of the active sites is conserved between the archaeal and eucaryal enzymes. These results suggest an evolutionary pathway for splice site recognition.

About this Structure

1A79 is a Single protein structure of sequence from Methanocaldococcus jannaschii. Full crystallographic information is available from OCA.

Reference

Crystal structure and evolution of a transfer RNA splicing enzyme., Li H, Trotta CR, Abelson J, Science. 1998 Apr 10;280(5361):279-84. PMID:9535656 Page seeded by OCA on Fri May 2 09:55:16 2008

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