Can molecular cell biology explain chromosome motions?

Daniel H. Shain, L. John Gagliardi

Research output: Contribution to journalReview articlepeer-review

1 Scopus citations

Abstract

Background: Mitotic chromosome motions have recently been correlated with electrostatic forces, but a lingering "molecular cell biology" paradigm persists, proposing binding and release proteins or molecular geometries for force generation. Results: Pole-facing kinetochore plates manifest positive charges and interact with negatively charged microtubule ends providing the motive force for poleward chromosome motions by classical electrostatics. This conceptual scheme explains dynamic tracking/coupling of kinetochores to microtubules and the simultaneous depolymerization of kinetochore microtubules as poleward force is generated. Conclusion: We question here why cells would prefer complex molecular mechanisms to move chromosomes when direct electrostatic interactions between known bound charge distributions can accomplish the same task much more simply.

Original languageEnglish (US)
Article number15
JournalTheoretical Biology and Medical Modelling
Volume8
Issue number1
DOIs
StatePublished - 2011

All Science Journal Classification (ASJC) codes

  • Health Informatics
  • Modeling and Simulation

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