Evidence map›Paper›PMID 19176719›Full record

ArticlePlant physiology2009

Alternative splicing studies of the reactive oxygen species gene network in Populus reveal two isoforms of high-isoelectric-point superoxide dismutase.

Vaibhav Srivastava, Manoj Kumar Srivastava, Kamel Chibani, Robert Nilsson, Nicolas Rouhier, Michael Melzer, Gunnar Wingsle

Abstract read
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Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

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16citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Vaibhav SrivastavaUmeå Plant Science Center, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 901 83 Umeå, Sweden.
Manoj Kumar Srivastava
Kamel Chibani
Robert Nilsson
Nicolas Rouhier
Michael Melzer
Gunnar Wingsle

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent evidence has shown that alternative splicing (AS) is widely involved in the regulation of gene expression, substantially extending the diversity of numerous proteins. In this study, a subset of expressed sequence tags representing members of the reactive oxygen species gene network was selected from the PopulusDB database to investigate AS mechanisms in Populus. Examples of all known types of AS were detected, but intron retention was the most common. Interestingly, the closest Arabidopsis (Arabidopsis thaliana) homologs of half of the AS genes identified in Populus are not reportedly alternatively spliced. Two genes encoding the protein of most interest in our study (high-isoelectric-point superoxide dismutase [hipI-SOD]) have been found in black cottonwood (Populus trichocarpa), designated PthipI-SODC1 and PthipI-SODC2. Analysis of the expressed sequence tag libraries has indicated the presence of two transcripts of PthipI-SODC1 (hipI-SODC1b and hipI-SODC1s). Alignment of these sequences with the PthipI-SODC1 gene showed that hipI-SODC1b was 69 bp longer than hipI-SODC1s due to an AS event involving the use of an alternative donor splice site in the sixth intron. Transcript analysis showed that the splice variant hipI-SODC1b was differentially expressed, being clearly expressed in cambial and xylem, but not phloem, regions. In addition, immunolocalization and mass spectrometric data confirmed the presence of hipI-SOD proteins in vascular tissue. The functionalities of the spliced gene products were assessed by expressing recombinant hipI-SOD proteins and in vitro SOD activity assays.

Indexed as

Gene Regulatory NetworksAlternative SplicingAmino Acid SequenceChromatography, GelEscherichia coliGene Expression Regulation, PlantGenes, PlantIntronsIsoelectric PointMolecular Sequence DataPlant StemsPopulusProtein IsoformsProtein Structure, SecondaryProtein TransportReactive Oxygen SpeciesProtein IsoformsReactive Oxygen SpeciesRNA Splice SitesSuperoxide Dismutase

Identifiers

PMID19176719
PMCPMC2663752

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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.