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1jj2
From Proteopedia
Contents |
Fully Refined Crystal Structure of the Haloarcula marismortui Large Ribosomal Subunit at 2.4 Angstrom Resolution
Analysis of the Haloarcula marismortui large ribosomal subunit has revealed a common RNA structure that we call the kink-turn, or K-turn. The six K-turns in H.marismortui 23S rRNA superimpose with an r.m.s.d. of 1.7 A. There are two K-turns in the structure of Thermus thermophilus 16S rRNA, and the structures of U4 snRNA and L30e mRNA fragments form K-turns. The structure has a kink in the phosphodiester backbone that causes a sharp turn in the RNA helix. Its asymmetric internal loop is flanked by C-G base pairs on one side and sheared G-A base pairs on the other, with an A-minor interaction between these two helical stems. A derived consensus secondary structure for the K-turn includes 10 consensus nucleotides out of 15, and predicts its presence in the 5'-UTR of L10 mRNA, helix 78 in Escherichia coli 23S rRNA and human RNase MRP. Five K-turns in 23S rRNA interact with nine proteins. While the observed K-turns interact with proteins of unrelated structures in different ways, they interact with L7Ae and two homologous proteins in the same way.
The kink-turn: a new RNA secondary structure motif., Klein DJ, Schmeing TM, Moore PB, Steitz TA, EMBO J. 2001 Aug 1;20(15):4214-21. PMID:11483524
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
About this Structure
1jj2 is a 29 chain structure of Ribosomal protein L10, Ribosomal protein L2, Ribosomal protein L3, Ribosomal protein L4, Ribosomal protein L5, Ribosomal protein L6, Ribosomal protein L7 and Ribosome with sequence from Haloarcula marismortui. Full crystallographic information is available from OCA.
See Also
- Large Ribosomal Subunit of Haloarcula
- Ribosomal protein L10
- Ribosomal protein L2
- Ribosomal protein L3
- Ribosomal protein L4
- Ribosomal protein L5
- Ribosomal protein L6
- Ribosomal protein L7
- Ribosome
- User:Wayne Decatur/Haloarcula Large Ribosomal Subunit
Reference
- Klein DJ, Schmeing TM, Moore PB, Steitz TA. The kink-turn: a new RNA secondary structure motif. EMBO J. 2001 Aug 1;20(15):4214-21. PMID:11483524 doi:10.1093/emboj/20.15.4214
