Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 454

The DOI matches its Crossref record.

Chlorophyll a oxygenase ( CAO ) is involved in chlorophyll b formation from chlorophyll a

Open access
Tanaka, Ayumi, Ito, Hisashi, Tanaka, Ryouichi, Tanaka, Nobuaki K., Yoshida, Kazuichi, Okada, Kiyotaka·1998·Proceedings of the National Academy of Sciences

Abstract

Chlorophyll b is an ubiquitous accessory pigment in land plants, green algae, and prochlorophytes. Its biosynthesis plays a key role in the adaptation to various light environments. We isolated six chlorophyll b -less mutants by insertional mutagenesis by using the nitrate reductase or argininosuccinate lyase genes as tags and examined the rearrangement of mutant genomes. We found that an overlapping region of a nuclear genome was deleted in all mutants and that this encodes a protein whose sequence is similar to those of methyl monooxygenases. This coding sequence also contains putative binding domains for a [2Fe-2S] Rieske center and for a mononuclear iron. The results demonstrate that a chlorophyll a oxygenase is involved in chlorophyll b formation. The reaction mechanism of chlorophyll b formation is discussed.

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 · 10.1073/pnas.95.21.12719

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.

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

Cited by

See all 454

Metadata

Authors
Tanaka, A., Ito, H., Tanaka, R., Tanaka, N. K., Yoshida, K., & Okada, K.
Venue
Proceedings of the National Academy of Sciences
Published
1998-10-13
Volume
95
Issue
21
Pages
12719-12723
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2139093556
Cited by
454
References
0
FWCI
2.81
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: Chlorophyll a oxygenase ( CAO ) is involved in chlorophyll b formation from chlorophyll a. https://app.cochat.ai/papers/10.1073/pnas.95.21.12719
The paper
Tanaka, A., Ito, H., Tanaka, R., Tanaka, N. K., Yoshida, K., & Okada, K. (1998). Chlorophyll a oxygenase ( CAO ) is involved in chlorophyll b formation from chlorophyll a. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.95.21.12719

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.