Evidence map›Paper›PMID 20147459›Full record

ArticleNucleic acids research2010

Structure of Smad1 MH1/DNA complex reveals distinctive rearrangements of BMP and TGF-beta effectors.

Nithya BabuRajendran, Paaventhan Palasingam, Kamesh Narasimhan, Wenjie Sun, Shyam Prabhakar, Ralf Jauch, Prasanna R Kolatkar

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

48 citing papers in PubMed, 69 citations in OpenAlex.

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  10. SOX9 and SOX10 control fluid homeostasis in the inner ear for hearing through independent and cooperative mechanisms.Proceedings of the National Academy of Sciences of the United States of America · 2022
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  15. HumanCardiogenetics · 2021
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  19. Unveiling the dimer/monomer propensities of Smad MH1-DNA complexes.Computational and structural biotechnology journal · 2021
    Article
  20. Article
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

7 authors at 1 institution in 1 country.

Nithya BabuRajendranLaboratory of Structural Biochemistry, Genome Institute of Singapore, 60 Biopolis Street, Singapore.
Paaventhan Palasingam
Kamesh Narasimhan
Wenjie Sun
Shyam Prabhakar
Ralf Jauch
Prasanna R Kolatkar
National University of Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Smad1 is a downstream effector of the BMP signaling pathway that binds regulatory DNA to execute gene expression programs leading to, for example, the maintenance of pluripotency in mice. On the contrary, the TGF-beta-activated Smad3 triggers strikingly different programs such as mesodermal differentiation in early development. Because Smad1 and Smad3 contain identical amino acids at the DNA contact interface it is unclear how they elicit distinctive bioactivities. Here, we report the crystal structure of the MH1 domain of Smad1 bound to a palindromic Smad binding element. Surprisingly, the DNA contact interface of Smad1 is drastically rearranged when compared to Smad3. The N-terminal helix 1 of Smad1 is dislodged from its intramolecular binding site and adopts a domain swapped arrangement with a symmetry-related molecule. As a consequence, helix 2 kinks away from the double helix disabling several key phosphate backbone interactions. Thermal melting analysis corroborates a decompacted conformation of Smad1 and DNA binding assays indicate a lower overall affinity of Smad1 to DNA but increased cooperativity when binding to palindromic DNA motifs. These findings suggest that Smad1 and Smad3 evolved differential qualities to assemble on composite DNA elements and to engage in co-factor interactions by remodeling their N-termini.

Indexed as

Amino Acid SequenceAnimalsBinding SitesBone Morphogenetic ProteinsCrystallography, X-RayDNAMiceModels, MolecularMolecular Sequence DataProtein BindingProtein Structure, TertiaryResponse ElementsSignal TransductionSmad1 ProteinSmad3 ProteinThermodynamicsBone Morphogenetic ProteinsDNASmad1 ProteinSmad1 protein, mouseSmad3 ProteinSmad3 protein, mouseTransforming Growth Factor beta

Identifiers

PMID20147459
PMCPMC2879523
OpenAlexW1971801835

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.