Evidence map›Paper›PMID 26590639›Full record

ArticleChemistry & biology2015

Molecular Basis of Spectral Diversity in Near-Infrared Phytochrome-Based Fluorescent Proteins.

Daria M Shcherbakova, Mikhail Baloban, Sergei Pletnev, Vladimir N Malashkevich, Hui Xiao, Zbigniew Dauter, Vladislav V Verkhusha

Open access · greenAbstract read
In one paragraph

Article in Chemistry & biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
14.0field-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

36 citing papers in PubMed, 62 citations in OpenAlex.

  1. Article
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  3. The near-infrared bacteriophytochrome-derived fluorescent protein PENELOPE enables RESOLFT superresolution microscopy.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  19. The Pathways of the iRFP713 Unfolding Induced by Different Denaturants.International journal of molecular sciences · 2018
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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

7 authors at 2 institutions in 2 countries.

Daria M ShcherbakovaDepartment of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Mikhail BalobanDepartment of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Sergei PletnevMacromolecular Crystallography Laboratory, Basic Research Program, National Cancer Institute and Leidos Biomedical Research Inc., Argonne, IL 60439, USA.
Vladimir N MalashkevichDepartment of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Hui XiaoDepartment of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Zbigniew DauterMacromolecular Crystallography Laboratory, Basic Research Program, National Cancer Institute and Leidos Biomedical Research Inc., Argonne, IL 60439, USA.
Vladislav V VerkhushaDepartment of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; Department of Biochemistry and Developmental Biology, Faculty of Medicine, University of Helsinki, Helsinki 00029, Finland. Electronic address: vladislav.verkhusha@einstein.yu.edu.
Albert Einstein College of Medicine · USLeidos (United States) · US

Funding

WORD PROCESSORP30CA013330 · NCI · YESHIVA UNIVERSITY · PI THOMAS E ROHAN · 1985 to 2026
$111.2M
Macromolecular Crystallography Research with Synchrotron RadiationZIABC010378 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI DAUTER, ZBIGNIEW · 2009 to 2020
$18.8M
In Vivo Multiphoton Based Imaging of Complex Cancer Cell BehaviorR01CA164468 · NCI · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI VERKHUSHA, VLADISLAV · 2011 to 2015
$3.8M
Molecular Fluorescent ToolkitR01GM073913 · NIGMS · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI VERKHUSHA, VLADISLAV · 2006 to 2014
$2.4M
Engineering bacterial phytochromes for near-infrared imaging in mammalsR01GM108579 · NIGMS · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI VERKHUSHA, VLADISLAV · 2014 to 2017
$1.3M
Kindling Fluorescent Proteins for Tagging and BiosensorsR01GM070358 · NIGMS · UNIVERSITY OF COLORADO DENVER · PI VERKHUSHA, VLADISLAV · 2004 to 2007
$974k
CCR NIH HHS HHSN261200800001CNCI NIH HHS CA164468NCI NIH HHS HHSN261200800001ENCI NIH HHS P30 CA013330NCI NIH HHS R01 CA164468NIGMS NIH HHS GM073913NIGMS NIH HHS GM108579NIGMS NIH HHS R01 GM070358NIGMS NIH HHS R01 GM073913NIGMS NIH HHS R01 GM108579
6 · The paper itself

Abstract

Near-infrared fluorescent proteins (NIR FPs) engineered from bacterial phytochromes (BphPs) are the probes of choice for deep-tissue imaging. Detection of several processes requires spectrally distinct NIR FPs. We developed an NIR FP, BphP1-FP, which has the most blue-shifted spectra and the highest fluorescence quantum yield among BphP-derived FPs. We found that these properties result from the binding of the biliverdin chromophore to a cysteine residue in the GAF domain, unlike natural BphPs and other BphP-based FPs. To elucidate the molecular basis of the spectral shift, we applied biochemical, structural and mass spectrometry analyses and revealed the formation of unique chromophore species. Mutagenesis of NIR FPs of different origins indicated that the mechanism of the spectral shift is general and can be used to design multicolor NIR FPs from other BphPs. We applied pairs of spectrally distinct point cysteine mutants to multicolor cell labeling and demonstrated that they perform well in model deep-tissue imaging.

Indexed as

Amino Acid SequenceAnimalsBacteriaBacterial ProteinsCysteineHeLa CellsHumansLuminescent ProteinsMiceMicroscopy, ConfocalMolecular Sequence DataMutagenesisPhytochromeProtein Structure, TertiaryRecombinant ProteinsRhodopseudomonasBacterial ProteinsCysteineLuminescent ProteinsPhytochromeRecombinant Proteins

Identifiers

PMID26590639
PMCPMC4667795
OpenAlexW2179080532

What OpenQuestion holds

Textmetadata
LicenceTDM
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.