PreprintCited by 3Mitochondrial Function and PathologyATP Synthase and ATPases ResearchPlant Molecular Biology Research

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

PLANT UNCOUPLING MITOCHONDRIAL PROTEIN 2 localizes to the Golgi

Open access

Preprint — published as 10.1093/plphys/kiad540

Abstract

Mitochondria act as cellular hubs of energy transformation and metabolite conversion in most eukaryotes. Plant mitochondrial electron transport chains are particularly flexible, featuring alternative components, such as ALTERNATIVE NAD(P)H DEHYDROGENASES and ALTERNATIVE OXIDASES (AOXs), that can bypass proton translocation steps. PLANT UNCOUPLING MITOCHONDRIAL PROTEINS (named PUMPs or plant UCPs) have been identified in plants as homologues of mammalian Uncoupling Proteins (UCPs), and their biochemical and physiological roles have been investigated in the context of mitochondrial energy metabolism. To dissect UCP function in Arabidopsis, the two most conserved (UCP1 and UCP2) have been targeted in recent work by combining mutant lines to circumvent potential functional redundancy in vivo . Such approaches rely on the assumption that both proteins reside in the inner mitochondrial membrane as a prerequisite for functional redundancy. Yet, contradicting results have been reported on UCP2 localization in plants. Here we provide evidence that, conversely to UCP1, which is an abundant inner mitochondrial membrane protein, UCP2 localizes to the Golgi rather than to mitochondria. Based on multiple lines of new and prior evidence, we summarize the consensus view that we have reached and provide an example of how open, critical exchange within the research community is able to constructively address ambiguities. Our observations and considerations provide direction to the ongoing discussion about the functions of UCP proteins. They further offer new perspectives for the study of Golgi membrane transport and subcellular targeting principles of membrane proteins. Since 20 to 30 % of genes in plant genomes are predicted to encode transmembrane proteins and the function of most of those proteins has not been experimentally investigated, we highlight the importance of using independent evidence for localization as a prerequisite for understanding physiological function of membrane proteins.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1101/2023.05.06.539686

Cites

1 of 1 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Flagged first, then by citations

Research works printed but not linked: 75

  1. 10.1105/tpc.108.062877 · DOI
  2. 2021, Knockdown of Mitochondrial Uncoupling Proteins 1 and 2 (AtUCP1 and 2) in Arabidopsis thaliana Impacts Vegetative Development and Fertility, Plant Cell Physiol, 62, 1630, 10.1093/pcp/pcab117 · DOI
  3. 10.1093/pcp/pcr019 · DOI
  4. 2020, Mitochondrial uncoupling proteindependent signaling in plant bioenergetics and stress response, Mitochondrion, 53, 109, 10.1016/j.mito.2020.05.001 · DOI
  5. 2022, Mitochondrial retrograde signaling through UCP1-mediated inhibition of the plant oxygen-sensing pathway, Current Biol, 32, 1403, 10.1016/j.cub.2022.01.037 · DOI
  6. 2022, Metabolism and Signaling of Plant Mitochondria in Adaptation to Environmental Stresses, Int. J. Mol. Sci, 23, 11176, 10.3390/ijms231911176 · DOI
  7. 2017, Mitochondrial uncoupling protein 1 overexpression increases yield in nicotiana tabacum under drought stress by improving source and sink metabolism, Front. Plant Sci, 8, 1836, 10.3389/fpls.2017.01836 · DOI
  8. 10.1371/journal.pone.0016163 · DOI
  9. 10.1016/j.cmet.2014.07.004 · DOI · Paper page
  10. 10.1007/978-1-62703-580-4_26 · DOI
  11. 10.1093/jxb/erj070 · DOI
  12. 2020, Tissue-specific isolation of Arabidopsis/plant mitochondria - IMTACT (isolation of mitochondria tagged in specific cell types), Plant J, 103, 459, 10.1111/tpj.14723 · DOI
  13. 10.1105/tpc.105.040741 · DOI
  14. 10.1111/j.1365-313X.2008.03704.x · DOI
  15. 10.1016/j.plaphy.2013.10.002 · DOI
  16. 2017, Shuttling of (deoxy-) purine nucleotides between compartments of the diatom Phaeodactylum tricornutum, New Phytol, 213, 193, 10.1111/nph.14126 · DOI
  17. 10.1007/s11103-005-5514-7 · DOI
  18. 10.1074/jbc.M301075200 · DOI
  19. 10.1093/nar/16.22.10881 · DOI
  20. 10.1016/j.biochi.2016.12.016 · DOI
  21. 10.1093/nar/gkh340 · DOI · Paper page
  22. 10.1104/pp.114.243824 · DOI
  23. 2019, Single organelle function and organization as estimated from Arabidopsis mitochondrial proteomics, Plant J, 101, 1
  24. 2022, Reductive stress triggers ANAC017-mediated retrograde signaling to safeguard the endoplasmic reticulum by boosting mitochondrial respiratory capacity, Plant Cell, 34, 1375, 10.1093/plcell/koac017 · DOI
  25. 10.1093/pcp/pce108 · DOI
  26. 10.1105/tpc.112.101964 · DOI
  27. Haferkamp, I. , & Schmitz-Esser, S. (2012). The plant mitochondrial carrier family: Functional and evolutionary aspects. Front. Plant Sci. 3. · DOI
  28. 10.1104/pp.15.00499 · DOI
  29. 10.1093/nar/gkw1041 · DOI
  30. Hruz, T. , Laule, O. , Szabo, G. , Wessendorp, F. , Bleuler, S. , Oertle, L. , Widmayer, P. , Gruissem, W. , & Zimmermann, P. (2008). Genevestigator V3 : A Reference Expression Database for the Meta-Analysis of Transcriptomes. Adv. Bioinformatics 2008: 42047. · DOI
  31. 10.1093/bioinformatics/17.8.754 · DOI · Paper page
  32. 10.1093/jxb/ern024 · DOI
  33. 10.1074/jbc.273.52.34882 · DOI
  34. 10.1074/jbc.271.51.32743 · DOI
  35. 10.1016/j.cell.2016.06.044 · DOI
  36. 10.1104/pp.111.182352 · DOI
  37. 10.1104/pp.19.00732 · DOI
  38. 2020, Tagging and catching: rapid isolation and efficient labelling of organelles using the covalent Spy-System in planta, Plant Methods, 16, 122, 10.1186/s13007-020-00663-9 · DOI
  39. 2021, The versatility of plant organic acid metabolism in leaves is underpinned by mitochondrial malate-citrate exchange, Plant Cell, 33, 3700, 10.1093/plcell/koab223 · DOI
  40. 10.1105/tpc.107.057554 · DOI
  41. 2022, The Double Knockdown of the Mitochondrial Uncoupling Protein Isoforms Reveals Partial Redundant Roles During Arabidopsis thaliana Vegetative and Reproductive Development, Plant Sci, 322, 111365, 10.1016/j.plantsci.2022.111365 · DOI
  42. 10.1105/tpc.108.062042 · DOI
  43. 10.1007/s11738-014-1746-y · DOI
  44. 10.1016/S0014-5793(98)00634-6 · DOI
  45. 10.1105/tpc.113.116897 · DOI
  46. 2022, Plant Trans-Golgi Network/Early Endosome pH regulation requires Cation Chloride Cotransporter (CCC1), ELife, 11, e70701, 10.7554/eLife.70701 · DOI
  47. 10.1105/tpc.109.066019 · DOI
  48. 2020, Proteomic and Bioinformatic Profiling of Transporters in Higher Plant Mitochondria, Biomolecules, 10, 1190, 10.3390/biom10081190 · DOI
  49. 10.1074/jbc.RA117.000771 · DOI
  50. 10.1271/bbb.70216 · DOI
  51. 10.1104/pp.121.4.1127 · DOI
  52. 10.1111/j.1365-313X.2007.03212.x · DOI
  53. 10.1104/pp.19.00736 · DOI
  54. 2012, Putative glycosyltransferases and other plant Golgi apparatus proteins are revealed by LOPIT proteomics, Plant Physiol, 60, 1037
  55. 10.1007/s10863-011-9336-9 · DOI
  56. 2018, ATTED-II in 2018: A Plant Coexpression Database Based on Investigation of the Statistical Property of the Mutual Rank Index Special Issue - Databases, Plant Cell Physiol, 59, 1
  57. 10.1111/j.1365-313X.2011.04516.x · DOI
  58. 10.1042/BJ20070867 · DOI
  59. 10.1104/pp.111.193151 · DOI
  60. 10.1105/tpc.111.084574 · DOI
  61. 10.1093/nar/gku316 · DOI · Paper page
  62. 2021, ClCd and ClCf act redundantly at the trans-Golgi network/early endosome and prevent acidification of the Golgi stack, J. Cell Sci, 134, jcs258807, 10.1242/jcs.258807 · DOI
  63. 10.1104/pp.011577 · DOI
  64. 10.1111/tpj.13448 · DOI
  65. 10.1093/mp/sst079 · DOI
  66. 10.1074/jbc.M408920200 · DOI
  67. 10.1093/MOLBEV/MSZ312 · DOI
  68. 10.1242/jcs.139907 · DOI
  69. 10.1105/tpc.20.00241 · DOI
  70. 10.1073/pnas.0607751103 · DOI
  71. 10.1146/annurev.arplant.57.032905.105335 · DOI
  72. 10.1105/tpc.15.00509 · DOI
  73. Wagner, S. , Nietzel, T. , Aller, I. , Costa, A. , Fricker, M. D. , Meyer, A. J. , & Schwarzländer, M. (2015b). Analysis of plant mitochondrial function using fluorescent protein sensors. In Plant Mitochondria: Methods and Protocols 241–252. · DOI
  74. 10.1093/oxfordjournals.pcp.a029501 · DOI
  75. 10.1371/journal.pone.0026477 · DOI

Metadata

Authors
Fuchs, P., Feixes-Prats, E., Arruda, P., Feitosa-Araújo, E., Fernie, A. R., Grefen, C., Lichtenauer, S., Linka, N., de Godoy Maia, I., Meyer, A. J., Schilasky, S., Sweetlove, L. J., Wege, S., Weber, A. P., Millar, A. H., Keech, O., Florez Sarasa, I., Barreto, P., & Schwarzländer, M.
Affiliations
  • University of Bonn (DE)
  • Universitat Autònoma de Barcelona (ES)
  • Universidade Estadual de Campinas (UNICAMP) (BR)
  • Max Planck Society (DE)
  • Ruhr University Bochum (DE)
  • University of Münster (DE)
  • Cluster of Excellence on Plant Sciences (DE)
  • University of Oxford (GB)
  • The University of Western Australia (AU)
  • Umeå Plant Science Centre (SE)
Corresponding author
  • Barreto, Pedro
  • Schwarzländer, Markus
Venue
PLANT PHYSIOLOGY
Publisher
openRxiv
Published
2023-05-08
Volume
194
Issue
2
Pages
623-628
ISSN
0032-0889 (ISSN-L)
OpenAlex
W4387520759
Cited by
3
References
1
Citations by year
2025: 1 · 2024: 2
FWCI
0.27
Type
journal article
Language
en
Open access
Locations
  • PLANT PHYSIOLOGY (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
  • UWA Profiles and Research Repository (UWA) (submittedVersion, other-oa)
  • HAL (submittedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
  • IRTA (Institut de Recerca i Tecnologia Agroalimentaries) (submittedVersion)
Funders
  • Deutsche Forschungsgemeinschaft (SCHW 1719/9-1, MCIN /AEI/10.13039/501100011033, GRK2064)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (MCIN/AEI/10.13039/501100011033, AEI/10.13039/501100011033)
  • Westfälische Wilhelms-Universität Münster (RI_00497)
  • Agencia Estatal de Investigación (AEI//10.13039/501100011033/, 501100011033, 10.13039/501100011033, MCIN/AEI/10.13039/501 100 011 033, 13039, .13039/501100011033, 10.13039, AEI/10)
  • European Social Fund (MCIN/AEI/10.13039/ 501100011033, 501100011033, AEI/10.13039/501100011033)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › ATP Synthase and ATPases Research
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Molecular Biology Research
Keywords
UCP2, Golgi apparatus, protein localization, UCP1, mitochondrial carrier protein, plant mitochondria
MeSH terms
Golgi Apparatus, Humans, Membrane Proteins, Mitochondrial Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review