Evidence map›Paper›PMID 37155885›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2023

Polymer folding through active processes recreates features of genome organization.

Andriy Goychuk, Deepti Kannan, Arup K Chakraborty, Mehran Kardar

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
9.7field-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

27 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Behavior of Active Polymer Knots.Macromolecules · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Bridging spatial and temporal scales of developmental gene regulation.Current opinion in genetics & development · 2025
    Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Transcriptional machinery as an architect of genome structure.Current opinion in structural biology · 2024
    Review
  15. Review
  16. Review
  17. Article
  18. Motorized chain models of the ideal chromosome.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  19. Review
  20. Review
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 2 institutions in 1 country.

Andriy GoychukInstitute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139.ORCID 0000-0001-6776-9437
Deepti KannanDepartment of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139.ORCID 0000-0002-4416-8417
Arup K ChakrabortyInstitute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139.
Mehran KardarDepartment of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139.ORCID 0000-0002-1112-5912
Massachusetts Institute of Technology · USRagon Institute of MGH, MIT and Harvard · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

From proteins to chromosomes, polymers fold into specific conformations that control their biological function. Polymer folding has long been studied with equilibrium thermodynamics, yet intracellular organization and regulation involve energy-consuming, active processes. Signatures of activity have been measured in the context of chromatin motion, which shows spatial correlations and enhanced subdiffusion only in the presence of adenosine triphosphate. Moreover, chromatin motion varies with genomic coordinate, pointing toward a heterogeneous pattern of active processes along the sequence. How do such patterns of activity affect the conformation of a polymer such as chromatin? We address this question by combining analytical theory and simulations to study a polymer subjected to sequence-dependent correlated active forces. Our analysis shows that a local increase in activity (larger active forces) can cause the polymer backbone to bend and expand, while less active segments straighten out and condense. Our simulations further predict that modest activity differences can drive compartmentalization of the polymer consistent with the patterns observed in chromosome conformation capture experiments. Moreover, segments of the polymer that show correlated active (sub)diffusion attract each other through effective long-ranged harmonic interactions, whereas anticorrelations lead to effective repulsions. Thus, our theory offers nonequilibrium mechanisms for forming genomic compartments, which cannot be distinguished from affinity-based folding using structural data alone. As a first step toward exploring whether active mechanisms contribute to shaping genome conformations, we discuss a data-driven approach.

Indexed as

ChromatinPolymersChromosomesGenomeGenomicsChromatinPolymersactive processesgenome organizationpolymer mechanicsstochastic processes

Identifiers

PMID37155885
PMCPMC10194017
OpenAlexW4375954818

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.