Evidence map›Paper›PMID 21715374›Full record

ArticleNucleic acids research2011

Thrombin-aptamer recognition: a revealed ambiguity.

Irene Russo Krauss, Antonello Merlino, Concetta Giancola, Antonio Randazzo, Lelio Mazzarella, Filomena Sica

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
6.4field-weighted citation impact, top 2% 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

59 citing papers in PubMed, 151 citations in OpenAlex.

  1. Aptamer-based DNA nanoswitches for multiplexed protein detection.Chemical communications (Cambridge, England) · 2026
    Article
  2. Aptamer-based DNA nanoswitches for multiplexed protein detection.bioRxiv : the preprint server for biology · 2026
    Article
  3. Article
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  5. Fluorescence Anisotropy Applied to Measure Aptamer-Protein Interactions.Methods in molecular biology (Clifton, N.J.) · 2026
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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

6 authors at 2 institutions in 1 country.

Irene Russo KraussUniversità di Napoli Federico II, Via Cintia, Napoli, Italia.
Antonello Merlino
Concetta Giancola
Antonio Randazzo
Lelio Mazzarella
Filomena Sica
University of Naples Federico II · ITIstituto Nazionale di Fisica Nucleare, Sezione di Napoli · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aptamers are structured oligonucleotides that recognize molecular targets and can function as direct protein inhibitors. The best-known example is the thrombin-binding aptamer, TBA, a single-stranded 15-mer DNA that inhibits the activity of thrombin, the key enzyme of coagulation cascade. TBA folds as a G-quadruplex structure, as proved by its NMR structure. The X-ray structure of the complex between TBA and human α-thrombin was solved at 2.9-Å resolution, but did not provide details of the aptamer conformation and the interactions with the protein molecule. TBA is rapidly processed by nucleases. To improve the properties of TBA, a number of modified analogs have been produced. In particular, a modified TBA containing a 5'-5' polarity inversion site, mTBA, has higher stability and higher affinity toward thrombin with respect to TBA, although it has a lower inhibitory activity. We present the crystal structure of the thrombin-mTBA complex at 2.15-Å resolution; the resulting model eventually provides a clear picture of thrombin-aptamers interaction, and also highlights the structural bases of the different properties of TBA and mTBA. Our findings open the way for a rational design of modified aptamers with improved potency as anticoagulant drugs.

Indexed as

Aptamers, NucleotideCrystallography, X-RayDNA-Binding ProteinsHumansModels, MolecularThrombinAptamers, NucleotideDNA-Binding ProteinsThrombinthrombin aptamer

Identifiers

PMID21715374
PMCPMC3177225
OpenAlexW2065246657

What OpenQuestion holds

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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.