Evidence map›Paper›PMID 23139410›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Unique motifs and hydrophobic interactions shape the binding of modified DNA ligands to protein targets.

Douglas R Davies, Amy D Gelinas, Chi Zhang, John C Rohloff, Jeffrey D Carter, Daniel O'Connell, Sheela M Waugh, Steven K Wolk, Wesley S Mayfield, Alex B Burgin and 5 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 134 papers.

0numbers the graph read from it
0cells of the map it votes in
134citing papers in PubMed
–field-weighted citation impact
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

134 citing papers in PubMed.

  1. Trial
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  3. Trial
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. In Silico Study of Anti-CD40 DNA Aptamers as Vaccine Adjuvants for Chickens.International journal of molecular sciences · 2026
    Article
  10. Placental Protein Release and Uptake From the Fetal Circulation in Healthy Term Pregnancies-A Human In Vivo Exploratory Study.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Using aptamers for targeted delivery of RNA therapies.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review

74 more citing papers are in PubMed but not listed here.

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

15 authors.

Douglas R DaviesEmerald BioStructures, Inc, Bainbridge Island, WA 98110, USA.
Amy D Gelinas
Chi Zhang
John C Rohloff
Jeffrey D Carter
Daniel O'Connell
Sheela M Waugh
Steven K Wolk
Wesley S Mayfield
Alex B Burgin
Thomas E Edwards
Lance J Stewart
Larry Gold
Nebojsa Janjic
Thale C Jarvis

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Selection of aptamers from nucleic acid libraries by in vitro evolution represents a powerful method of identifying high-affinity ligands for a broad range of molecular targets. Nevertheless, a sizeable fraction of proteins remain difficult targets due to inherently limited chemical diversity of nucleic acids. We have exploited synthetic nucleotide modifications that confer protein-like diversity on a nucleic acid scaffold, resulting in a new generation of binding reagents called SOMAmers (Slow Off-rate Modified Aptamers). Here we report a unique crystal structure of a SOMAmer bound to its target, platelet-derived growth factor B (PDGF-BB). The SOMAmer folds into a compact structure and exhibits a hydrophobic binding surface that mimics the interface between PDGF-BB and its receptor, contrasting sharply with mainly polar interactions seen in traditional protein-binding aptamers. The modified nucleotides circumvent the intrinsic diversity constraints of natural nucleic acids, thereby greatly expanding the structural vocabulary of nucleic acid ligands and considerably broadening the range of accessible protein targets.

Indexed as

Hydrophobic and Hydrophilic InteractionsModels, MolecularAmino Acid MotifsAptamers, NucleotideBecaplerminCrystallography, X-RayDNA PrimersMolecular Sequence DataMolecular StructurePhosphorylationProtein BindingProto-Oncogene Proteins c-sisSELEX Aptamer TechniqueSequence Analysis, DNATransition TemperatureAptamers, NucleotideBecaplerminDNA PrimersProto-Oncogene Proteins c-sis

Identifiers

PMID23139410
PMCPMC3523867

What OpenQuestion holds

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Registered trials

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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.