Evidence map›Paper›PMID 34102054›Full record

ArticleACS sensors2021

Genetically Encoded, pH-Sensitive mTFP1 Biosensor for Probing Lysosomal pH.

Marcus Y Chin, Anand R Patwardhan, Kean-Hooi Ang, Austin L Wang, Carolina Alquezar, Mackenzie Welch, Phi T Nguyen, Michael Grabe, Anna V Molofsky, Michelle R Arkin and 1 more

Open access · greenAbstract read
In one paragraph

Article in ACS sensors, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
17.2field-weighted citation impact, top 1% 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

41 citing papers in PubMed, 86 citations in OpenAlex.

  1. Article
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  6. Vacuolar-type HNature communications · 2025
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  18. Human stem cell-specific epigenetic signatures control transgene expression.Biochimica et biophysica acta. Gene regulatory mechanisms · 2024
    Article
  19. Review
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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

11 authors at 1 institution in 1 country.

Marcus Y ChinMemory and Aging Center, Department of Neurology, University of California, San Francisco, California 94158, United States.ORCID 0000-0002-7037-1603
Anand R PatwardhanMemory and Aging Center, Department of Neurology, University of California, San Francisco, California 94158, United States.
Kean-Hooi AngSmall Molecule Discovery Center, Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94143, United States.
Austin L WangMemory and Aging Center, Department of Neurology, University of California, San Francisco, California 94158, United States.
Carolina AlquezarMemory and Aging Center, Department of Neurology, University of California, San Francisco, California 94158, United States.
Mackenzie WelchMemory and Aging Center, Department of Neurology, University of California, San Francisco, California 94158, United States.
Phi T NguyenWeill Institute for Neurosciences, Department of Psychiatry, University of California, San Francisco, California 94158, United States.
Michael GrabeCardiovascular Research Institute, Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94158, United States.
Anna V MolofskyWeill Institute for Neurosciences, Department of Psychiatry, University of California, San Francisco, California 94158, United States.
Michelle R ArkinSmall Molecule Discovery Center, Department of Pharmaceutical Chemistry, University of California, San Francisco, California 94143, United States.ORCID 0000-0002-9366-6770
Aimee W KaoMemory and Aging Center, Department of Neurology, University of California, San Francisco, California 94158, United States.ORCID 0000-0002-7686-7968
University of California, San Francisco · US

Funding

TDP-43 Loss-of-Function: Biology to BiomarkersP01AG019724 · NIA · UNIVERSITY OF PENNSYLVANIA · PI Jennifer Merrilees · 2002 to 2026
$67.2M
Systematic profiling of lysosomes with age to improve proteostasis in Alzheimer'sR01AG057342 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KAO, AIMEE · 2018 to 2022
$3.8M
Discovery of Novel Drugs that Increase Tau Clearance to Treat Alzheimer's DiseaseRF1AG058447 · NIA · J. DAVID GLADSTONE INSTITUTES · PI FINKBEINER, STEVEN M · 2018 to 2018
$1.8M
NIA NIH HHS P01 AG019724NIA NIH HHS R01 AG057342NIA NIH HHS RF1 AG058447
6 · The paper itself

Abstract

Lysosomes are important sites for macromolecular degradation, defined by an acidic lumenal pH of ∼4.5. To better understand lysosomal pH, we designed a novel, genetically encoded, fluorescent protein (FP)-based pH biosensor called Fluorescence Indicator REporting pH in Lysosomes (FIRE-pHLy). This biosensor was targeted to lysosomes with lysosomal-associated membrane protein 1 (LAMP1) and reported lumenal pH between 3.5 and 6.0 with monomeric teal fluorescent protein 1 (mTFP1), a bright cyan pH-sensitive FP variant with a p

Indexed as

Biosensing TechniquesLysosomesGreen Fluorescent ProteinsHydrogen-Ion ConcentrationCyan Fluorescent ProteinGreen Fluorescent Proteinshigh-content analysislysosomesneuronspH biosensorratiometric imaging

Identifiers

PMID34102054
PMCPMC8240087
OpenAlexW3167461271

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.