Evidence map›Paper›PMID 39890728›Full record

ArticleMethods in molecular biology (Clifton, N.J.)2025

Advanced Freeze-Replica Methods for Virus Cell Biology.

Jiro Usukura

Abstract read
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In one paragraph

Article in Methods in molecular biology (Clifton, N.J.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

1 author.

Jiro UsukuraInstitute of Materials and Systems for Sustainability, Nagoya University, Nagoya, Japan. usukura.jiro.w9@a.mail.nagoya-u.ac.jp.ORCID 0000-0003-2286-5403

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Freeze-replica methods were developed in the early 1950s and have advanced through various improvements and in combination with other specimen preparation methods up to the present day. In particular, the latest immuno-freeze-etching replica of unroofed specimens is the unique method enabling three-dimensional observation of the cytoplasmic side surface structure of the plasma membrane and the membrane cytoskeleton attached to it under an electron microscope. The experimental procedures are described in detail here, listing the essential materials required for each research experiment, ranging from the classical freeze-fracture replica method to the latest unroofing immuno-freeze-etching replica method. These methods are also considered crucial for morphological approaches in the viral infection process. Indeed, in cells infected with influenza A viruses, the present methods have shown that progeny viral ribonucleoproteins (vRNPs), including the genome, are bundled by actin filaments on the cytoplasmic surface of the host cell plasma membrane.

Indexed as

Freeze FracturingInfluenza A virusAnimalsCell MembraneHumansRibonucleoproteinsRibonucleoproteinsElectron microscopyFreeze-replicaMembraneQuick freezingUnroofingVirus cell biology

Identifiers

PMID39890728

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.