Evidence mapPaperPMID 40878865Full record

ArticleFEBS letters2025

Redox-dependent binding and conformational equilibria govern the fluorescence decay of NAD(P)H in living cells.

Thomas S Blacker, Nimit Mistry, Nicoletta Plotegher, Elizabeth R Westbrook, Michael D E Sewell, John Carroll, Gyorgy Szabadkai, Angus J Bain, Michael R Duchen

Abstract read
In one paragraph

Article in FEBS letters, 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

9 authors.

Thomas S BlackerResearch Department of Structural & Molecular Biology, University College London, UK.ORCID https://orcid.org/0000-0002-8949-6238
Nimit MistryResearch Department of Structural & Molecular Biology, University College London, UK.
Nicoletta PlotegherResearch Department of Cell & Developmental Biology, University College London, UK.
Elizabeth R WestbrookResearch Department of Cell & Developmental Biology, University College London, UK.
Michael D E SewellResearch Department of Cell & Developmental Biology, University College London, UK.
John CarrollResearch Department of Cell & Developmental Biology, University College London, UK.
Gyorgy SzabadkaiResearch Department of Cell & Developmental Biology, University College London, UK.
Angus J BainDepartment of Physics & Astronomy, University College London, UK.
Michael R DuchenResearch Department of Cell & Developmental Biology, University College London, UK.

Funding

Biotechnology and Biological Sciences Research Council BB/L020874/1Biotechnology and Biological Sciences Research Council BB/P018726/1Biotechnology and Biological Sciences Research Council BB/W009242/1
6 · The paper itself

Abstract

When probed in living systems using fluorescence lifetime imaging microscopy (FLIM), the emission from reduced nicotinamide adenine dinucleotide (NADH) and its phosphorylated form NADPH have shown promise as sensitive intrinsic reporters of metabolism. However, an incomplete understanding of the biochemical processes controlling their fluorescence decay makes it difficult to draw unambiguous conclusions. Here, we utilised time-resolved fluorescence anisotropy imaging to identify multiple enzyme binding configurations associated with lifetimes both longer and shorter than unbound NAD(P)H. FLIM, combined with mathematical and computational modelling, revealed that the redox states of the NAD and NADP pools control the steady-state equilibrium of binding configurations, which in turn determines the observed fluorescence decay. This knowledge will be foundational to developing the accurate interpretation of NAD(P)H FLIM.

Indexed as

NADPFluorescenceFluorescence PolarizationHumansMicroscopy, FluorescenceNADOxidation-ReductionProtein BindingProtein ConformationNADNADPFLIMfluorescencefluorescence anisotropyfluorescence lifetimemetabolismmicroscopyNADHNAD(P)HNADPH

Identifiers

PMID40878865
PMCPMC12519055

What Socratic holds

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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 Socratic graph.