1af5

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{{STRUCTURE_1af5| PDB=1af5 | SCENE= }}
{{STRUCTURE_1af5| PDB=1af5 | SCENE= }}
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'''GROUP I MOBILE INTRON ENDONUCLEASE'''
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===GROUP I MOBILE INTRON ENDONUCLEASE===
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==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.
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(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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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 16:43:10 2008''

Revision as of 13:43, 30 June 2008

Image:1af5.png

Template:STRUCTURE 1af5

GROUP I MOBILE INTRON ENDONUCLEASE

Template:ABSTRACT PUBMED 9187655

About this Structure

1AF5 is a Single protein structure of sequence from Chlamydomonas reinhardtii. Full crystallographic information is available from OCA.

Reference

The structure of I-Crel, a group I intron-encoded homing endonuclease., Heath PJ, Stephens KM, Monnat RJ Jr, Stoddard BL, Nat Struct Biol. 1997 Jun;4(6):468-76. PMID:9187655

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