Evidence map›Paper›PMID 18667428›Full record

ArticleThe Journal of biological chemistry2008

Crystal structure of the Thermus thermophilus 16 S rRNA methyltransferase RsmC in complex with cofactor and substrate guanosine.

Hasan Demirci, Steven T Gregory, Albert E Dahlberg, Gerwald Jogl

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.0field-weighted citation impact, top 25% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 19 citations in OpenAlex.

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  11. Deconstructing ribosome construction.Trends in biochemical sciences · 2009
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Hasan DemirciDepartment of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, Rhode Island 02912, USA.
Steven T Gregory
Albert E Dahlberg
Gerwald Jogl
Brown University · US

Funding

POLYSOMES &SUBUNITS: STRUCTURE-FUNCTION RELATIONSHIPSR01GM019756 · NIGMS · BROWN UNIVERSITY · PI DAHLBERG, ALBERT E · 1985 to 2013
$8.5M
INDENTATION WITH ATOMIC FORCE MICROSCOPYF32GM019756 · NIGMS · BARNES-JEWISH HOSPITAL · PI COSTA, KEVIN D · 1998 to 1998
–
NIGMS NIH HHS F32 GM019756NIGMS NIH HHS GM19756NIGMS NIH HHS R01 GM019756
6 · The paper itself

Abstract

Post-transcriptional modification is a ubiquitous feature of ribosomal RNA in all kingdoms of life. Modified nucleotides are generally clustered in functionally important regions of the ribosome, but the functional contribution to protein synthesis is not well understood. Here we describe high resolution crystal structures for the N(2)-guanine methyltransferase RsmC that modifies residue G1207 in 16 S rRNA near the decoding site of the 30 S ribosomal subunit. RsmC is a class I S-adenosyl-L-methionine-dependent methyltransferase composed of two methyltransferase domains. However, only one S-adenosyl-L-methionine molecule and one substrate molecule, guanosine, bind in the ternary complex. The N-terminal domain does not bind any cofactor. Two structures with bound S-adenosyl-L-methionine and S-adenosyl-L-homocysteine confirm that the cofactor binding mode is highly similar to other class I methyltransferases. Secondary structure elements of the N-terminal domain contribute to cofactor-binding interactions and restrict access to the cofactor-binding site. The orientation of guanosine in the active site reveals that G1207 has to disengage from its Watson-Crick base pairing interaction with C1051 in the 16 S rRNA and flip out into the active site prior to its modification. Inspection of the 30 S crystal structure indicates that access to G1207 by RsmC is incompatible with the native subunit structure, consistent with previous suggestions that this enzyme recognizes a subunit assembly intermediate.

Indexed as

Bacterial ProteinsBase PairingBinding SitesCoenzymesCrystallography, X-RayMethyltransferasesProtein BindingProtein Structure, SecondaryProtein Structure, TertiaryRNA, Ribosomal, 16SS-AdenosylmethionineThermus thermophilusBacterial ProteinsCoenzymesMethyltransferasesRNA, Ribosomal, 16SS-Adenosylmethionine

Identifiers

PMID18667428
PMCPMC2546533
OpenAlexW2079931811

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.