The DOI matches its Crossref record; 32 of the 32 references it cites were found in a registry or an index.
A photoactive carotenoid protein acting as light intensity sensor
Open accessAbstract
Intense sunlight is dangerous for photosynthetic organisms. Cyanobacteria, like plants, protect themselves from light-induced stress by dissipating excess absorbed energy as heat. Recently, it was discovered that a soluble orange carotenoid protein, the OCP, is essential for this photoprotective mechanism. Here we show that the OCP is also a member of the family of photoactive proteins; it is a unique example of a photoactive protein containing a carotenoid as the photoresponsive chromophore. Upon illumination with blue-green light, the OCP undergoes a reversible transformation from its dark stable orange form to a red “active” form. The red form is essential for the induction of the photoprotective mechanism. The illumination induces structural changes affecting both the carotenoid and the protein. Thus, the OCP is a photoactive protein that senses light intensity and triggers photoprotection.
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.
Integrity signals
Registry
Cites
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.
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
Vibrational Spectroscopy and Conformation of Peptides, Polypeptides, and Proteins
Krimm, S., & Bandekar, J. (1986) · Advances in Protein Chemistry · doi:10.1016/s0065-3233(08)60528-8 · Cited by 2,857
PHOTOPROTECTION REVISITED:Genetic and Molecular Approaches
Niyogi, K. K. (1999) · Annual Review of Plant Physiology and Plant Molecular Biology · doi:10.1146/annurev.arplant.50.1.333 · Cited by 1,933
REGULATION OF LIGHT HARVESTING IN GREEN PLANTS
Horton, P., Ruban, A. V., & Walters, R. G. (1996) · Annual Review of Plant Physiology and Plant Molecular Biology · doi:10.1146/annurev.arplant.47.1.655 · Cited by 1,768
Global and target analysis of time-resolved spectra
van Stokkum, I. H. M., Larsen, D. S., & van Grondelle, R. (2004) · Biochimica et Biophysica Acta (BBA) - Bioenergetics · doi:10.1016/j.bbabio.2004.04.011 · Cited by 1,752
Self-citationObservation of a Strongly Interacting Degenerate Fermi Gas of Atoms
O'Hara, K. M., Hemmer, S. L., Gehm, M. E., Granade, S. R., & Thomas, J. E. (2002) · Science · doi:10.1126/science.1079107 · Cited by 1,040
Identification of a mechanism of photoprotective energy dissipation in higher plants
Ruban, A. V., Berera, R., Ilioaia, C., van Stokkum, I. H. M., Kennis, J. T. M., Pascal, A. A., van Amerongen, H., Robert, B., Horton, P., & van Grondelle, R. (2007) · Nature · doi:10.1038/nature06262 · Cited by 919
Self-citationStandfuss, J., Terwisscha van Scheltinga, A. C., Lamborghini, M., & Kühlbrandt, W. (2005) · The EMBO Journal · doi:10.1038/sj.emboj.7600585 · Cited by 793
Carotenoid Cation Formation and the Regulation of Photosynthetic Light Harvesting
Holt, N. E., Zigmantas, D., Valkunas, L., Li, X.-P., Niyogi, K. K., & Fleming, G. R. (2005) · Science · doi:10.1126/science.1105833 · Cited by 792
Structural Basis of a Phototropin Light Switch
Harper, S. M., Neil, L. C., & Gardner, K. H. (2003) · Science · doi:10.1126/science.1086810 · Cited by 767
Antioxidants in Photosynthesis and Human Nutrition
Demmig-Adams, B., & Adams, W. W. (2002) · Science · doi:10.1126/science.1078002 · Cited by 677
Cited by
The role of the xanthophyll cycle and of lutein in photoprotection of photosystem II
Jahns, P., & Holzwarth, A. R. (2012) · Biochimica et Biophysica Acta (BBA) - Bioenergetics · doi:10.1016/j.bbabio.2011.04.012 · Cited by 1,084
Ultrafast transient absorption spectroscopy: principles and application to photosynthetic systems
Berera, R., van Grondelle, R., & Kennis, J. T. M. (2009) · Photosynthesis Research · doi:10.1007/s11120-009-9454-y · Cited by 894
Self-citationControlling Light Harvesting with Light
Gwizdala, M., Berera, R., Kirilovsky, D., van Grondelle, R., & Krüger, T. P. J. (2016) · Journal of the American Chemical Society · doi:10.1021/jacs.6b04811 · Cited by 60
Self-citationSluchanko, N. N., Maksimov, E. G., Slonimskiy, Y. B., Varfolomeeva, L. A., Bukhanko, A. Y., Egorkin, N. A., Tsoraev, G. V., Khrenova, M. G., Ge, B., Qin, S., et al. (2024) · International Journal of Biological Macromolecules · doi:10.1016/j.ijbiomac.2023.127874 · Cited by 18
Metadata
- Authors
- Wilson, A., Punginelli, C., Gall, A., Bonetti, C., Alexandre, M., Routaboul, J.-M., Kerfeld, C. A., van Grondelle, R., Robert, B., Kennis, J. T. M., & Kirilovsky, D.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2008-08-19
- Volume
- 105
- Issue
- 33
- Pages
- 12075-12080
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W1974537535
- Cited by
- 342
- References
- 32
- FWCI
- 5.34
- Type
- journal article
- Language
- en
- Open access
- green
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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: A photoactive carotenoid protein acting as light intensity sensor. https://app.cochat.ai/papers/10.1073/pnas.0804636105
- The paper
- Wilson, A., Punginelli, C., Gall, A., Bonetti, C., Alexandre, M., Routaboul, J.-M., Kerfeld, C. A., van Grondelle, R., Robert, B., Kennis, J. T. M., & Kirilovsky, D. (2008). A photoactive carotenoid protein acting as light intensity sensor. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0804636105
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
