Evidence map›Paper›PMID 19482954›Full record

ArticleApplied and environmental microbiology2009

Organization, evolution, and expression analysis of the biosynthetic gene cluster for scytonemin, a cyanobacterial UV-absorbing pigment.

Carla M Sorrels, Philip J Proteau, William H Gerwick

Open access · greenAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
11.0field-weighted citation impact, top 2% 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

36 citing papers in PubMed, 89 citations in OpenAlex.

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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

3 authors at 3 institutions in 1 country.

Carla M SorrelsCenter for Marine Biomedicine and Biotechnology, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093-0212, USA.
Philip J Proteau
William H Gerwick
Oregon State University · USScripps Institution of Oceanography · USUniversity of California, San Diego · US

Funding

Training Program in Marine BiotechnologyT32GM067550 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GERWICK, WILLIAM HENRY · 2004 to 2019
$2.0M
NIGMS NIH HHS T32 GM067550NIGMS NIH HHS T32GM067550
6 · The paper itself

Abstract

Cyanobacteria are photosynthetic prokaryotes capable of protecting themselves from UV radiation through the biosynthesis of UV-absorbing secondary metabolites, such as the mycosporines and scytonemin. Scytonemin, a novel indolic-phenolic pigment, is found sequestered in the sheath, where it provides protection to the subtending cells during exposure to UV radiation. The biosynthesis of scytonemin is encoded by a previously identified gene cluster that is present in six cyanobacterial species whose genomes are available. A comparison of these clusters reveals that two major cluster architectures exist which appear to have evolved through rearrangements of large sections, such as those genes responsible for aromatic amino acid biosynthesis and through the insertion of genes that potentially confer additional biosynthetic capabilities. Differential transcriptional expression analysis demonstrated that the entire gene cluster is transcribed in higher abundance after exposure to UV radiation. This analysis helps delineate the cluster boundaries and indicates that regulation of this cluster is controlled by the presence or absence of UV radiation. The findings from an evolutionary phylogenetic analysis combined with the fact that the scytonemin gene cluster is distributed across several cyanobacterial lineages led to our proposal that the distribution of this gene cluster is best explained through an ancient evolutionary origin.

Indexed as

Gene Expression ProfilingGene OrderMultigene FamilyBiosynthetic PathwaysCyanobacteriaEvolution, MolecularIndolesPhenolsPhylogenySequence Analysis, DNASyntenyUltraviolet RaysIndolesPhenolsscytonemin

Identifiers

PMID19482954
PMCPMC2708446
OpenAlexW2096399102

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.