ArticleNature nanotechnology2014
Single-molecule spectroscopy of amino acids and peptides by recognition tunnelling.
Article in Nature nanotechnology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers.
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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.
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Who cites it
89 citing papers in PubMed.
- Chiral discrimination of amino acids in meteorite and desert soil extracts via single-molecule nanogap conductance.Nature communications · 2026Article
- Article
- Fingerprint Recognition Based on Molecular-Scale Conductance Response via Electrochemically Gated Quantum Tunnelling.Sensors (Basel, Switzerland) · 2026Article
- Single-Molecule Conductance of Non-Redox Proteins: Mechanisms, Measurements, and Applications.Biomolecules · 2026Review
- Decoding information stored in DNAs through single-molecule electrical detection platforms.Innovation (Cambridge (Mass.)) · 2025Review
- Single-Molecule Bioelectronic Sensors with AI-Aided Data Analysis: Convergence and Challenges.Precision chemistry · 2024Review
- Single-molecule detection of modified amino acid regulating transcriptional activity.RSC advances · 2024Article
- Label-free electronic detection of peptide post-translational modification with functional enzyme-driven assay at the physical limit.Cell reports. Physical science · 2024Article
- Electromigrated Gold Nanogap Tunnel Junction Arrays: Fabrication and Electrical Behavior in Liquid and Gaseous Media.ACS applied materials & interfaces · 2024Article
- Single-Molecule Electrical Profiling of Peptides and Proteins.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Review
- Amplifiable protein identification via residue-resolved barcoding and composition code counting.National science review · 2024Article
- Real-time detection of 20 amino acids and discrimination of pathologically relevant peptides with functionalized nanopore.Nature methods · 2024Article
- Nanopore DNA sequencing technologies and their applications towards single-molecule proteomics.Nature chemistry · 2024Review
- Peptide sequencing based on host-guest interaction-assisted nanopore sensing.Nature methods · 2024Article
- Unambiguous discrimination of all 20 proteinogenic amino acids and their modifications by nanopore.Nature methods · 2024Article
- Molecular sensitised probe for amino acid recognition within peptide sequences.Nature communications · 2023Article
- Reduction of Biosensor False Responses and Time Delay Using Dynamic Response and Theory-Guided Machine Learning.ACS sensors · 2023Article
- Review
- Unidirectional single-file transport of full-length proteins through a nanopore.Nature biotechnology · 2023Article
- Direct biomolecule discrimination in mixed samples using nanogap-based single-molecule electrical measurement.Scientific reports · 2023Article
29 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
Abstract
The human proteome has millions of protein variants due to alternative RNA splicing and post-translational modifications, and variants that are related to diseases are frequently present in minute concentrations. For DNA and RNA, low concentrations can be amplified using the polymerase chain reaction, but there is no such reaction for proteins. Therefore, the development of single-molecule protein sequencing is a critical step in the search for protein biomarkers. Here, we show that single amino acids can be identified by trapping the molecules between two electrodes that are coated with a layer of recognition molecules, then measuring the electron tunnelling current across the junction. A given molecule can bind in more than one way in the junction, and we therefore use a machine-learning algorithm to distinguish between the sets of electronic 'fingerprints' associated with each binding motif. With this recognition tunnelling technique, we are able to identify D and L enantiomers, a methylated amino acid, isobaric isomers and short peptides. The results suggest that direct electronic sequencing of single proteins could be possible by sequentially measuring the products of processive exopeptidase digestion, or by using a molecular motor to pull proteins through a tunnel junction integrated with a nanopore.
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