Evidence map›Paper›PMID 32873706›Full record

ArticleThe Journal of biological chemistry2020

The human mitochondrial enzyme BCO2 exhibits catalytic activity toward carotenoids and apocarotenoids.

Linda D Thomas, Sepalika Bandara, Vipulkumar M Parmar, Ramkumar Srinivasagan, Nimesh Khadka, Marcin Golczak, Philip D Kiser, Johannes von Lintig

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

28 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
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  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Effects of carotenoids on mitochondrial dysfunction.Biochemical Society transactions · 2024
    Review
  12. Review
  13. Article
  14. Article
  15. Aster la vista: Unraveling the biochemical basis of carotenoid homeostasis in the human retina.BioEssays : news and reviews in molecular, cellular and developmental biology · 2022
    Article
  16. Aster proteins mediate carotenoid transport in mammalian cells.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  17. Review
  18. Article
  19. Carotenoid modifying enzymes in metazoans.Methods in enzymology · 2022
    Article
  20. 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

8 authors at 2 institutions in 1 country.

Linda D ThomasDepartment of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
Sepalika BandaraDepartment of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
Vipulkumar M ParmarDepartment of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
Ramkumar SrinivasaganDepartment of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
Nimesh KhadkaDepartment of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
Marcin GolczakDepartment of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA; Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
Philip D KiserDepartment of Physiology and Biophysics, University of California, Irvine, California, USA; Research Service, Veterans Affairs Long Beach Healthcare System, Long Beach, California, USA.
Johannes von LintigDepartment of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA. Electronic address: johannes.vonlintig@case.edu.
Case Western Reserve University · USUniversity of California, Irvine · US

Funding

TISSUE CULTURE AND HYBRIDOMA MODULEP30EY011373 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI Irina A Pikuleva · 1997 to 2026
$17.7M
VISUAL SCIENCES TRAINING PROGRAMT32EY007157 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI Johannes Friedrich von Lintig · 2000 to 2026
$5.5M
Carotinoids in VisionR01EY020551 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI VON LINTIG, JOHANNES FRIEDRICH · 2011 to 2024
$4.8M
STRA6 and Ocular Vitamin A HomeostasisR01EY028121 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI Johannes Friedrich von Lintig · 2018 to 2026
$4.3M
Regulation of vitamin A metabolism in the eyeR01EY023948 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI GOLCZAK, MARCIN BERNARD · 2014 to 2023
$3.8M
Leica SP8 Confocal with Hyvolution2 DeconvolutionS10OD024996 · OD · CASE WESTERN RESERVE UNIVERSITY · PI IMANISHI, YOSHIKAZU · 2018 to 2018
$594k
Retinoid cycles and retinal disease treatmentI01BX004939 · VA · VETERANS HEALTH ADMINISTRATION · PI KISER, PHILIP DAVID · 2020 to 2025
–
BLRD VA I01 BX004939NEI NIH HHS P30 EY011373NEI NIH HHS R01 EY020551NEI NIH HHS R01 EY023948NEI NIH HHS R01 EY028121NEI NIH HHS T32 EY007157NIH HHS S10 OD024996
6 · The paper itself

Abstract

The enzyme β-carotene oxygenase 2 (BCO2) converts carotenoids into more polar metabolites. Studies in mammals, fish, and birds revealed that BCO2 controls carotenoid homeostasis and is involved in the pathway for vitamin A production. However, it is controversial whether BCO2 function is conserved in humans, because of a 4-amino acid long insertion caused by a splice acceptor site polymorphism. We here show that human BCO2 splice variants, BCO2a and BCO2b, are expressed as pre-proteins with mitochondrial targeting sequence (MTS). The MTS of BCO2a directed a green fluorescent reporter protein to the mitochondria when expressed in ARPE-19 cells. Removal of the MTS increased solubility of BCO2a when expressed in

Indexed as

AnimalsBinding SitesBiocatalysisCarotenoidsDioxygenasesHumansMiceMitochondriaMolecular Dynamics SimulationProtein IsoformsProtein Structure, TertiaryRecombinant ProteinsRetinaRNA SplicingSolubilityStereoisomerismBCO2 protein, humanBco2 protein, mouseCarotenoidsDioxygenasesProtein IsoformsRecombinant ProteinsZeaxanthinsapocarotenoidsBCO2carotenoid apocarotenoidcarotenoidsdioxygenasemacular pigmentsmetabolismretinavisionVisionβ-carotene-oxygenase 2 (BCO2)

Identifiers

PMID32873706
PMCPMC7667965
OpenAlexW3082103924

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.