2qh2: Difference between revisions

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[[Image:2qh2.gif|left|200px]]
{{Seed}}
[[Image:2qh2.png|left|200px]]


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{{STRUCTURE_2qh2|  PDB=2qh2  |  SCENE=  }}  
{{STRUCTURE_2qh2|  PDB=2qh2  |  SCENE=  }}  


'''Solution structure of the CR7 terminal hairpin loop from human telomerase RNA'''
===Solution structure of the CR7 terminal hairpin loop from human telomerase RNA===




==Overview==
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The RNA component of human telomerase (hTR) includes H/ACA and CR7 domains required for 3' end processing, localization, and accumulation. The terminal loop of the CR7 domain contains the CAB box (ugAG) required for targeting of scaRNAs to Cajal bodies (CB) and an uncharacterized sequence required for accumulation and processing. To dissect out the contributions of the CR7 stem loop to hTR processing and localization, we solved the solution structures of the 3' terminal stem loops of hTR CR7 and U64 H/ACA snoRNA, and the 5' terminal stem loop of U85 C/D-H/ACA scaRNA. These structures, together with analysis of localization, processing, and accumulation of hTRs containing nucleotide substitutions in the CR7 domain, identified the sequence and structural requirements of the hTR processing and CB localization signals and showed that these signals are functionally independent. Further, 3' end processing was found to be a prerequisite for translocation of hTR to CBs.
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(as it appears on PubMed at http://www.pubmed.gov), where 17889661 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17889661}}


==About this Structure==
==About this Structure==
Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QH2 OCA].  
Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2QH2 OCA].  


==Reference==
==Reference==
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[[Category: Syn g]]
[[Category: Syn g]]
[[Category: Wobble base pair]]
[[Category: Wobble base pair]]
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