Evidence map›Paper›PMID 30518560›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2018

VIPER is a genetically encoded peptide tag for fluorescence and electron microscopy.

Julia K Doh, Jonathan D White, Hannah K Zane, Young Hwan Chang, Claudia S López, Caroline A Enns, Kimberly E Beatty

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

20 citing papers in PubMed, 38 citations in OpenAlex.

  1. Structure-guided optimization of SLY1 expression and purification in Escherichia coli.Protein science : a publication of the Protein Society · 2026
    Article
  2. Cloneable contrast across all biological length scales.Journal of structural biology · 2026
    Article
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  9. Review
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  11. Perfluorocarbons in Chemical Biology.Chembiochem : a European journal of chemical biology · 2020
    Review
  12. EGFR Expression in HER2-Driven Breast Cancer Cells.International journal of molecular sciences · 2020
    Article
  13. Article
  14. Article
  15. Article
  16. Article
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  18. Article
  19. Article
  20. VIPERACS applied materials & interfaces · 2019
    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

7 authors at 1 institution in 1 country.

Julia K DohDepartment of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239.ORCID 0000-0001-9375-6947
Jonathan D WhiteDepartment of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239.
Hannah K ZaneDepartment of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239.
Young Hwan ChangDepartment of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239.
Claudia S LópezDepartment of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239.
Caroline A EnnsDepartment of Cell, Developmental, and Cancer Biology, Oregon Health & Science University, Portland, OR 97239.
Kimberly E BeattyDepartment of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97239; beattyk@ohsu.edu.ORCID 0000-0002-2303-8779
Oregon Health & Science University · US

Funding

Function of the hemochromatosis proteinR37DK054488 · NIDDK · OREGON HEALTH & SCIENCE UNIVERSITY · PI ENNS, CAROLINE · 2010 to 2019
$4.0M
New Technology for Tracking Proteins by Light and Electron MicroscopyR01GM122854 · NIGMS · OREGON HEALTH & SCIENCE UNIVERSITY · PI BEATTY, KIMBERLY ELIZABETH · 2017 to 2021
$2.1M
NIGMS NIH HHS R01 GM122854
6 · The paper itself

Abstract

Many discoveries in cell biology rely on making specific proteins visible within their native cellular environment. There are various genetically encoded tags, such as fluorescent proteins, developed for fluorescence microscopy (FM). However, there are almost no genetically encoded tags that enable cellular proteins to be observed by both FM and electron microscopy (EM). Herein, we describe a technology for labeling proteins with diverse chemical reporters, including bright organic fluorophores for FM and electron-dense nanoparticles for EM. Our technology uses versatile interacting peptide (VIP) tags, a class of genetically encoded tag. We present VIPER, which consists of a coiled-coil heterodimer formed between the genetic tag, CoilE, and a probe-labeled peptide, CoilR. Using confocal FM, we demonstrate that VIPER can be used to highlight subcellular structures or to image receptor-mediated iron uptake. Additionally, we used VIPER to image the iron uptake machinery by correlative light and EM (CLEM). VIPER compared favorably with immunolabeling for imaging proteins by CLEM, and is an enabling technology for protein targets that cannot be immunolabeled. VIPER is a versatile peptide tag that can be used to label and track proteins with diverse chemical reporters observable by both FM and EM instrumentation.

Indexed as

AnimalsCell LineCHO CellsCricetulusHumansMicroscopy, ElectronMicroscopy, FluorescenceNanoparticlesStaining and Labelingbiochemistrychemical biologycoiled coilelectron microscopyfluorescence microscopy

Identifiers

PMID30518560
PMCPMC6304991
OpenAlexW2903349248

What OpenQuestion holds

Textmetadata
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.