ISDA

Deposition Date 2001-07-31

Release Date 2002-05-01

Last Version Date 2024-05-22

Entry Detail

PDB ID:

1JP0

Keywords:

RNA

Title:

NMR Structure of the LP5.1 Hairpin from Bacillus RNase P RNA Refined WITHOUT Residual Dipolar Couplings

Biological Source:

Source Organism:

(Taxon ID: )

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Calculated:

100

Conformers Submitted:

Selection Criteria:

structures with the lowest energy

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Macromolecular Entities

Polymer Type:polyribonucleotide
Molecule:5'-R(*GP*GP*CP*GP*GP*UP*GP*CP*UP*GP*AP*GP*AP*UP*GP*CP*CP*CP*GP*UP*C)-3'
Chain IDs:A
Chain Length:21
Number of Molecules:1
Biological Source:

Ligand Molecules

Primary Citation

Structure of the UGAGAU hexaloop that braces Bacillus RNase P for action.

Leeper, T.C, Martin, M.B, Kim, H, Cox, S, Semenchenko, V, Schmidt, F.J, Van Doren, S.R.Show

Nat.Struct.Biol. 9 397 403 (2002)

PMID: 11927952

Abstact

Long-range interactions involving the P5.1 hairpin of Bacillus RNase P RNA are thought to form a structural truss to support RNA folding and activity. We determined the structure of this element by NMR and refined the structure using residual dipolar couplings from a sample weakly oriented in a dilute liquid crystalline mixture of polyethylene glycol and hexanol. Dipolar coupling refinement improved the global precision of the structure from 1.5 to 1.2 A (to the mean), revised the bend angle between segments of the P5.1 stem and corroborated the structure of the loop region. The UGAGAU hexaloop of P5.1 contains two stacks of bases on opposite sides of the loop, distinguishing it from GNRA tetraloops. The unusual conformation of the juxtaposed uracil residues within the hexaloop may explain their requirement in transactivation assays.

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Primary Citation of related structures