Evidence map›Paper›PMID 23386973›Full record

ArticleScientific reports2013

An unexpectedly branched biosynthetic pathway for bacteriochlorophyll b capable of absorbing near-infrared light.

Yusuke Tsukatani, Haruki Yamamoto, Jiro Harada, Taichi Yoshitomi, Jiro Nomata, Masahiro Kasahara, Tadashi Mizoguchi, Yuichi Fujita, Hitoshi Tamiaki

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

24 citing papers in PubMed, 63 citations in OpenAlex.

  1. Review
  2. Illuminating the coevolution of photosynthesis and Bacteria.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Biosynthesis of the modified tetrapyrroles-the pigments of life.The Journal of biological chemistry · 2020
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Elucidation of Genetic Backgrounds Necessary for Chlorophyll a Biosynthesis Toward Artificial Creation of Oxygenic Photosynthesis.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2015
    Article
  18. Article
  19. Review
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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

9 authors at 3 institutions in 1 country.

Yusuke TsukataniGraduate School of Life Sciences, Ritsumeikan University, Shiga 525-8577, Japan. yusuke-t@fc.ritsumei.ac.jp
Haruki Yamamoto
Jiro Harada
Taichi Yoshitomi
Jiro Nomata
Masahiro Kasahara
Tadashi Mizoguchi
Yuichi Fujita
Hitoshi Tamiaki
Ritsumeikan University · JPNagoya University · JPKurume University Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chlorophyllous pigments are essential for photosynthesis. Bacteriochlorophyll (BChl) b has the characteristic C8-ethylidene group and therefore is the sole naturally occurring pigment having an absorption maximum at near-infrared light wavelength. Here we report that chlorophyllide a oxidoreductase (COR), a nitrogenase-like enzyme, showed distinct substrate recognition and catalytic reaction between BChl a- and b-producing proteobacteria. COR from BChl b-producing Blastochloris viridis synthesized the C8-ethylidene group from 8-vinyl-chlorophyllide a. In contrast, despite the highly conserved primary structures, COR from BChl a-producing Rhodobacter capsulatus catalyzes the C8-vinyl reduction as well as the previously known reaction of the C7 = C8 double bond reduction on 8-vinyl-chlorophyllide a. The present data indicate that the plasticity of the nitrogenase-like enzyme caused the branched pathways of BChls a and b biosynthesis, ultimately leading to ecologically different niches of BChl a- and b-based photosynthesis differentiated by more than 150 nm wavelength.

Indexed as

Biosynthetic PathwaysAlphaproteobacteriaBacteriochlorophyll ABacteriochlorophyllsOxidoreductases Acting on CH-CH Group DonorsRecombinant ProteinsRhodobacter capsulatusSpectroscopy, Near-InfraredSubstrate SpecificityBacteriochlorophyll Abacteriochlorophyll bBacteriochlorophyllschlorophyllide a reductase, Rhodobacter capsulatusOxidoreductases Acting on CH-CH Group DonorsRecombinant Proteins

Identifiers

PMID23386973
PMCPMC3564038
OpenAlexW2043913735

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.