Evidence map›Paper›PMID 38009629›Full record

ArticleThe journal of physical chemistry letters2023

A Marcus-Type Inverted Region in the Translocation Kinetics of a Knotted Protein.

Prabhat Tripathi, Behzad Mehrafrooz, Aleksei Aksimentiev, Sophie E Jackson, Martin Gruebele, Meni Wanunu

Abstract read
In one paragraph

Article in The journal of physical chemistry letters, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Threading of Single Protein Molecules Through a Solid-State Nanopore.Methods in molecular biology (Clifton, N.J.) · 2026
    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

6 authors.

Prabhat TripathiDepartment of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh 221005, India.ORCID 0000-0002-9013-2132
Behzad MehrafroozDepartment of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States.
Aleksei AksimentievDepartment of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States.ORCID 0000-0002-6042-8442
Sophie E JacksonYusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.ORCID 0000-0002-7470-9800
Martin GruebeleDepartment of Chemistry, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States.ORCID 0000-0001-9291-8123
Meni WanunuDepartment of Physics, Northeastern University, Boston, Massachusetts 02115, United States.ORCID 0000-0002-9837-0004

Funding

Asymmetric Single-Chain MspA nanopores for electroosmotic stretching and sequencing proteinsR01HG012553 · NHGRI · NORTHEASTERN UNIVERSITY · PI AKSIMENTIEV, ALEKSEI, CHEN, MIN · 2023 to 2023
$2.0M
Multiplexed electronic counting of scarce protein targets using nucleic acid nanoparticlesR21EB032640 · NIBIB · UNIVERSITY OF NORTH CAROLINA CHARLOTTE · PI AFONIN, KIRILL A, AKSIMENTIEV, ALEKSEI · 2022 to 2023
$423k
NHGRI NIH HHS R01 HG012553NIBIB NIH HHS R21 EB032640
6 · The paper itself

Abstract

Knotted proteins are rare but important species, yet how their complex topologies affect their physical properties is not fully understood. Here we combine single molecule nanopore experiments and all-atom MD simulations to study the electric-field-driven unfolding during the translocation through a model pore of individual protein knots important for methylating tRNA. One of these knots shows an unusual behavior that resembles the behavior of electrons hopping between two potential surfaces: as the electric potential driving the translocation reaction is increased, the rate eventually plateaus or slows back down in the "Marcus inverted regime". Our results shed light on the influence of topology in knotted proteins on their forced translocation through a pore connecting two electrostatic potential wells.

Indexed as

Protein ConformationProteinsProteins

Identifiers

PMID38009629
PMCPMC11176711

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.