Evidence map›Paper›PMID 20562221›Full record

ArticleNucleic acids research2010

70% efficiency of bistate molecular machines explained by information theory, high dimensional geometry and evolutionary convergence.

Thomas D Schneider

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

12 citing papers in PubMed, 40 citations in OpenAlex.

  1. Solvent constraints for biopolymer folding and evolution in extraterrestrial environments.Proceedings of the National Academy of Sciences of the United States of America · 2024
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  9. Shapely DNA attracts the right partner.Proceedings of the National Academy of Sciences of the United States of America · 2015
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  12. A brief review of molecular information theory.Nano communication networks · 2010
    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

1 author at 1 institution in 1 country.

Thomas D SchneiderCenter for Cancer Research Nanobiology Program, National Cancer Institute, Frederick, MD 21702-1201, USA. toms@alum.mit.edu
National Cancer Institute · US

Funding

Molecular Information TheoryZIABC008396 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SCHNEIDER, THOMAS · 2009 to 2010
$906k
6 · The paper itself

Abstract

The relationship between information and energy is key to understanding biological systems. We can display the information in DNA sequences specifically bound by proteins by using sequence logos, and we can measure the corresponding binding energy. These can be compared by noting that one of the forms of the second law of thermodynamics defines the minimum energy dissipation required to gain one bit of information. Under the isothermal conditions that molecular machines function this is Emin = Kb T ln 2 joules per bit (kB is Boltzmann's constant and T is the absolute temperature). Then an efficiency of binding can be computed by dividing the information in a logo by the free energy of binding after it has been converted to bits. The isothermal efficiencies of not only genetic control systems, but also visual pigments are near 70%. From information and coding theory, the theoretical efficiency limit for bistate molecular machines is ln 2=0.6931. Evolutionary convergence to maximum efficiency is limited by the constraint that molecular states must be distinct from each other. The result indicates that natural molecular machines operate close to their information processing maximum (the channel capacity), and implies that nanotechnology can attain this goal.

Indexed as

Biological EvolutionInformation TheoryThermodynamicsRhodopsinSequence Analysis, DNARhodopsin

Identifiers

PMID20562221
PMCPMC2952855
OpenAlexW2144486838

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.