Evidence map›Paper›PMID 22238638›Full record

ArticlePloS one2012

Functional evolution of duplicated odorant-binding protein genes, Obp57d and Obp57e, in Drosophila.

Eriko Harada, Jun Nakagawa, Tsunaki Asano, Masato Taoka, Hiroyuki Sorimachi, Yoshihiro Ito, Toshiro Aigaki, Takashi Matsuo

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.5field-weighted citation impact, top 21% 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

18 citing papers in PubMed, 32 citations in OpenAlex.

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  7. Chemical Ecology ofFrontiers in physiology · 2019
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  18. Novel genes from formation to function.International journal of evolutionary biology · 2012
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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

8 authors at 5 institutions in 1 country.

Eriko HaradaDepartment of Biological Sciences, Tokyo Metropolitan University, Hachioji, Tokyo, Japan.
Jun Nakagawa
Tsunaki Asano
Masato Taoka
Hiroyuki Sorimachi
Yoshihiro Ito
Toshiro Aigaki
Takashi Matsuo
Tokyo Metropolitan University · JPRIKEN Advanced Science Institute · JPThe University of Tokyo · JPTokyo Institute of Psychiatry · JPTokyo Metropolitan Institute of Medical Science · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Odorant-binding proteins (OBPs) are extracellular proteins found in insect chemosensilla, where they participate in the sensing of odors, tastes, and pheromones. Although a large number of OBP genes have been identified in insect genomes, their molecular functions and biological roles have been clarified in limited cases. Two OBP genes, Obp57d and Obp57e, were involved in the evolution of host-plant preference in Drosophila sechellia. Comparative analyses of the Obp57d/e genomic sequences from 27 closely related species suggested that the two genes arose by tandem gene duplication and functionally diverged from each other. In this study, the functional evolution of Obp57d and Obp57e was examined by in vitro binding assays using recombinant proteins synthesized in a bacterial system. Compared to the ancestral Dpse\OBP57de, Dmel\OBP57d was more specialized to tridecanoic acid while Dmel\OBP57e was generalized regarding their binding affinity, suggesting that the two OBP genes underwent subfunctionalization and neofunctionalization. A behavioral analysis using knockout flies supported that the biological role is different between OBP57d and OBP57e in vivo. Site-directed mutagenesis of the evolutionarily conserved amino acids revealed that these residues play an important role in protein folding. These findings provide a clue to understanding how the repertoire of OBP genes is maintained in a genome under natural selection.

Indexed as

Evolution, MolecularAmino Acid SequenceAnimalsChemotaxisDrosophilaDrosophila ProteinsEscherichia coliFemaleGenes, DuplicateMolecular Sequence DataOvipositionProtein BindingReceptors, OdorantRecombinant ProteinsSequence HomologySpectrometry, FluorescenceDrosophila ProteinsObp57d protein, DrosophilaObp57e protein, DrosophilaReceptors, OdorantRecombinant Proteins

Identifiers

PMID22238638
PMCPMC3253112
OpenAlexW1964879350

What OpenQuestion holds

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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.