Evidence map›Paper›PMID 11500536›Full record

ArticlePlant physiology2001

The complete set of genes encoding major intrinsic proteins in Arabidopsis provides a framework for a new nomenclature for major intrinsic proteins in plants.

U Johanson, M Karlsson, I Johansson, S Gustavsson, S Sjövall, L Fraysse, A R Weig, P Kjellbom

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Plant physiology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 278 papers.

0numbers the graph read from it
0cells of the map it votes in
278citing papers in PubMed
28.7field-weighted citation impact, top 1% 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

278 citing papers in PubMed, 770 citations in OpenAlex.

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  10. Genome-wide identification of aquaporin family inFrontiers in plant science · 2026
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  20. Article

218 more citing papers are in PubMed but not listed here.

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 2 institutions in 2 countries.

U JohansonDepartment of Plant Biochemistry, Lund University, P.O. Box 117, SE-221 00 Lund, Sweden. Urban.Johanson@plantbio.lu.se
M Karlsson
I Johansson
S Gustavsson
S Sjövall
L Fraysse
A R Weig
P Kjellbom
Lund University · SEUniversity of Bayreuth · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Major intrinsic proteins (MIPs) facilitate the passive transport of small polar molecules across membranes. MIPs constitute a very old family of proteins and different forms have been found in all kinds of living organisms, including bacteria, fungi, animals, and plants. In the genomic sequence of Arabidopsis, we have identified 35 different MIP-encoding genes. Based on sequence similarity, these 35 proteins are divided into four different subfamilies: plasma membrane intrinsic proteins, tonoplast intrinsic proteins, NOD26-like intrinsic proteins also called NOD26-like MIPs, and the recently discovered small basic intrinsic proteins. In Arabidopsis, there are 13 plasma membrane intrinsic proteins, 10 tonoplast intrinsic proteins, nine NOD26-like intrinsic proteins, and three small basic intrinsic proteins. The gene structure in general is conserved within each subfamily, although there is a tendency to lose introns. Based on phylogenetic comparisons of maize (Zea mays) and Arabidopsis MIPs (AtMIPs), it is argued that the general intron patterns in the subfamilies were formed before the split of monocotyledons and dicotyledons. Although the gene structure is unique for each subfamily, there is a common pattern in how transmembrane helices are encoded on the exons in three of the subfamilies. The nomenclature for plant MIPs varies widely between different species but also between subfamilies in the same species. Based on the phylogeny of all AtMIPs, a new and more consistent nomenclature is proposed. The complete set of AtMIPs, together with the new nomenclature, will facilitate the isolation, classification, and labeling of plant MIPs from other species.

Indexed as

AquaporinsArabidopsis ProteinsAlgorithmsArabidopsisBiological TransportCell MembraneExonsGenes, PlantIntronsIon ChannelsMembrane ProteinsPhylogenyPlant ProteinsSequence AlignmentSpecies SpecificitySubcellular FractionsAquaporinsArabidopsis ProteinsIon Channelsmajor intrinsic protein, plantMembrane ProteinsPlant Proteinsplasma membrane intrinsic protein 2 Arabidopsistonoplast intrinsic protein, plant

Identifiers

PMID11500536
PMCPMC117137
OpenAlexW2141207650

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.