ArticleRNA (New York, N.Y.)2002
Solution structure of an RNA fragment with the P7/P9.0 region and the 3'-terminal guanosine of the tetrahymena group I intron.
Article in RNA (New York, N.Y.), 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 18 citations in OpenAlex.
- Scaffolds with optimized quaternary symmetry for de novo cryoEM structure determination of small RNAs.Nature methods · 2026Article
- QRNAS: software tool for refinement of nucleic acid structures.BMC structural biology · 2019Article
- De novo tertiary structure prediction using RNA123--benchmarking and application to Macugen.Journal of molecular modeling · 2014Article
- Structure-function analysis from the outside in: long-range tertiary contacts in RNA exhibit distinct catalytic roles.Biochemistry · 2011Article
- Analysis of intermolecular base pair formation of prohead RNA of the phage phi29 DNA packaging motor using NMR spectroscopy.Nucleic acids research · 2008Article
- Solution structure of an informationally complex high-affinity RNA aptamer to GTP.RNA (New York, N.Y.) · 2006Article
- Crystal structure of a group I intron splicing intermediate.RNA (New York, N.Y.) · 2004Article
- The ability to form full-length intron RNA circles is a general property of nuclear group I introns.RNA (New York, N.Y.) · 2003Article
- Quick two-step RNA ligation employing periodate oxidation.Nucleic acids research · 2003Article
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Authors and funding
16 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In the second step of the two consecutive transesterifications of the self-splicing reaction of the group I intron, the conserved guanosine at the 3' terminus of the intron (omegaG) binds to the guanosine-binding site (GBS) in the intron. In the present study, we designed a 22-nt model RNA (GBS/omegaG) including the GBS and omegaG from the Tetrahymena group I intron, and determined the solution structure by NMR methods. In this structure, omegaG is recognized by the formation of a base triple with the G264 x C311 base pair, and this recognition is stabilized by the stacking interaction between omegaG and C262. The bulged structure at A263 causes a large helical twist angle (40 +/- 80) between the G264 x C311 and C262 x G312 base pairs. We named this type of binding pocket with a bulge and a large twist, formed on the major groove, a "Bulge-and-Twist" (BT) pocket. With another twist angle between the C262 x G312 and G413 x C313 base pairs (45 +/- 100), the axis of GBS/omegaG is kinked at the GBS region. This kinked axis superimposes well on that of the corresponding region in the structure model built on a 5.0 A resolution electron density map (Golden et al., Science, 1998, 282:345-358). This compact structure of the GBS is also consistent with previous biochemical studies on group I introns. The BT pockets are also found in the arginine-binding site of the HIV-TAR RNA, and within the 16S rRNA and the 23S rRNA.
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