Macromolecule Content

• Total Structure Weight: 7332.37 
• Atom Count: 484 
• Residue Count: 23 
• Unique nucleic acid chains: 1

2QH3

Solution structure of the U64 H/ACA snoRNA 3' terminal hairpin loop

• DOI: 10.2210/pdb2QH3/pdb
• BMRB: 7404
• NDB: 2QH3

• Classification: RNA


• Deposited: 2007-06-29 Released: 2007-09-25 
• Deposition Author(s): Feigon, J., Theimer, C.A., Chim, N., Breece, K.E.

---

Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy, no restraint violation, consistent with residual dipolar couplings 

Literature

Structural and functional characterization of human telomerase RNA processing and cajal body localization signals.

Theimer, C.A., Jady, B.E., Chim, N., Richard, P., Breece, K.E., Kiss, T., Feigon, J.

(2007) Mol.Cell 27: 869-881

• PubMed: 17889661 
• DOI: 10.1016/j.molcel.2007.07.017
• Primary Citation of Related Structures:  
  2QH2, 2QH4


• PubMed Abstract: 
  

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.

---

Organizational Affiliation: 

Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095-1569, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Length	Organism
Human U64 H/ACA snoRNA	A	23	N/A

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy, no restraint violation, consistent with residual dipolar couplings 

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2007-06-29 
• Released Date: 2007-09-25 
• Deposition Author(s): Feigon, J., Theimer, C.A., Chim, N., Breece, K.E.

Revision History 

• Version 1.0: 2007-09-25
  Type: Initial release
• Version 1.1: 2011-07-13
  Type: Version format compliance