1af5: Difference between revisions

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[[Image:1af5.gif|left|200px]]
{{Seed}}
[[Image:1af5.png|left|200px]]


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{{STRUCTURE_1af5|  PDB=1af5  |  SCENE=  }}  
{{STRUCTURE_1af5|  PDB=1af5  |  SCENE=  }}  


'''GROUP I MOBILE INTRON ENDONUCLEASE'''
===GROUP I MOBILE INTRON ENDONUCLEASE===




==Overview==
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The structure of I-Crel provides the first view of a protein encoded by a gene within an intron. This endonuclease recognizes a long DNA site approximately 20 base pairs in length and facilitates the lateral transfer of that intron. The protein exhibits a DNA-binding surface consisting of four antiparallel beta-strands that form a 20 A wide groove which is over 70 A long. The architecture of this fold is different from that of the TATA binding protein, TBP, which also contains an antiparallel beta-saddle. The conserved LAGLIDADG motif, which is found in many mobile intron endonucleases, maturases and inteins, forms a novel helical interface and contributes essential residues to the active site.
The line below this paragraph, {{ABSTRACT_PUBMED_9187655}}, adds the Publication Abstract to the page
(as it appears on PubMed at http://www.pubmed.gov), where 9187655 is the PubMed ID number.
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{{ABSTRACT_PUBMED_9187655}}


==About this Structure==
==About this Structure==
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[[Category: Intron homing]]
[[Category: Intron homing]]
[[Category: Laglidadg motif]]
[[Category: Laglidadg motif]]
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