Evidence map›Paper›PMID 20523933›Full record

ArticleMolecular bioSystems2010

Robust properties of membrane-embedded connector channel of bacterial virus phi29 DNA packaging motor.

Peng Jing, Farzin Haque, Anne P Vonderheide, Carlo Montemagno, Peixuan Guo

Abstract read
In one paragraph

Article in Molecular bioSystems, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
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  3. Construction of RNA nanotubes.Nano research · 2019
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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

5 authors.

Peng JingDepartment of Biomedical Engineering, College of Engineering and College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA.
Farzin Haque
Anne P Vonderheide
Carlo Montemagno
Peixuan Guo

Funding

Phi29 DNA-Packaging Motor for NanomedicinePN2EY018230 · NEI · UNIVERSITY OF CINCINNATI · PI GUO, PEIXUAN · 2006 to 2009
$4.6M
STRUCTURE/FUNCTION OF PHI29 HEXAMERIC PRNAR01GM059944 · NIGMS · UNIVERSITY OF CINCINNATI · PI GUO, PEIXUAN · 1999 to 2009
$1.9M
NEI NIH HHS PN2 EY 018230NEI NIH HHS PN2 EY018230NIGMS NIH HHS GM59944NIGMS NIH HHS R01 GM059944
6 · The paper itself

Abstract

Biological systems contain highly-ordered macromolecular structures with diverse functions, inspiring their utilization in nanotechnology. A motor allows linear dsDNA viruses to package their genome into a preformed procapsid. The central component of the motor is the portal connector that acts as a pathway for the translocation of dsDNA. The elegant design of the connector and its channel motivates its application as an artificial nanopore (Nature Nanotechnology, 4, 765-772). Herein, we demonstrate the robust characteristics of the connector of the bacteriophage phi29 DNA packaging motor by single pore electrophysiological assays. The conductance of each pore is almost identical and is perfectly linear with respect to the applied voltage. Numerous transient current blockade events induced by dsDNA are consistent with the dimensions of the channel and dsDNA. Furthermore, the connector channel is stable under a wide range of experimental conditions including high salt and pH 2-12. The robust properties of the connector nanopore made it possible to develop a simple reproducible approach for connector quantification. The precise number of connectors in each sheet of the membrane was simply derived from the slopes of the plot of voltage against current. Such quantifications led to a reliable real time counting of DNA passing through the channel. The fingerprint of DNA translocation in this system has provided a new tool for future biophysical and physicochemical characterizations of DNA transportation, motion, and packaging.

Indexed as

DNA PackagingBacillus PhagesBase SequenceDNA PrimersDNA, ViralHydrogen-Ion ConcentrationLipid BilayersPolymerase Chain ReactionDNA PrimersDNA, ViralLipid Bilayers

Identifiers

PMID20523933
PMCPMC3153913

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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.