Evidence map›Paper›PMID 27501943›Full record

ArticleMolecular biology and evolution2016

Membrane Proteins Are Dramatically Less Conserved than Water-Soluble Proteins across the Tree of Life.

Victor Sojo, Christophe Dessimoz, Andrew Pomiankowski, Nick Lane

Open access · bronzeAbstract read
In one paragraph

Article in Molecular biology and evolution, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

39 citing papers in PubMed, 77 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. CoelacanthJournal of virology · 2021
    Article
  18. Article
  19. Review
  20. Article
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

4 authors at 3 institutions in 3 countries.

Victor SojoCoMPLEX, University College London, London, United Kingdom Department of Genetics, Evolution and Environment, University College London, London, United Kingdom Systems Biophysics, Faculty of Physics, Ludwig-Maximilian University of Munich, Munich, Germany v.sojo.11@ucl.ac.uk nick.lane@ucl.ac.uk.
Christophe DessimozDepartment of Genetics, Evolution and Environment, University College London, London, United Kingdom Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland.
Andrew PomiankowskiCoMPLEX, University College London, London, United Kingdom Department of Genetics, Evolution and Environment, University College London, London, United Kingdom.
Nick LaneCoMPLEX, University College London, London, United Kingdom Department of Genetics, Evolution and Environment, University College London, London, United Kingdom v.sojo.11@ucl.ac.uk nick.lane@ucl.ac.uk.
University College London · GBLudwig-Maximilians-Universität München · DEUniversity of Lausanne · CH

Funding

Biotechnology and Biological Sciences Research Council BB/L018241/1
6 · The paper itself

Abstract

Membrane proteins are crucial in transport, signaling, bioenergetics, catalysis, and as drug targets. Here, we show that membrane proteins have dramatically fewer detectable orthologs than water-soluble proteins, less than half in most species analyzed. This sparse distribution could reflect rapid divergence or gene loss. We find that both mechanisms operate. First, membrane proteins evolve faster than water-soluble proteins, particularly in their exterior-facing portions. Second, we demonstrate that predicted ancestral membrane proteins are preferentially lost compared with water-soluble proteins in closely related species of archaea and bacteria. These patterns are consistent across the whole tree of life, and in each of the three domains of archaea, bacteria, and eukaryotes. Our findings point to a fundamental evolutionary principle: membrane proteins evolve faster due to stronger adaptive selection in changing environments, whereas cytosolic proteins are under more stringent purifying selection in the homeostatic interior of the cell. This effect should be strongest in prokaryotes, weaker in unicellular eukaryotes (with intracellular membranes), and weakest in multicellular eukaryotes (with extracellular homeostasis). We demonstrate that this is indeed the case. Similarly, we show that extracellular water-soluble proteins exhibit an even stronger pattern of low homology than membrane proteins. These striking differences in conservation of membrane proteins versus water-soluble proteins have important implications for evolution and medicine.

Indexed as

Adaptation, BiologicalArchaeaBacteriaBiological EvolutionDatabases, ProteinEukaryotaEvolution, MolecularHomeostasisMembrane ProteinsPhylogenyProkaryotic CellsProteinsSequence Analysis, ProteinSolubilityWaterMembrane ProteinsProteinsWateradaptationevolutionhomeostasismembrane proteinsorthologs

Identifiers

PMID27501943
PMCPMC5062322
OpenAlexW2511608695

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.