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Related Concept Videos

The Nucleus01:32

The Nucleus

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The nucleus is a membrane-bound organelle that acts as a control center in a eukaryotic cell. It contains chromosomal DNA, which controls gene expression and precisely regulates the production of proteins within the cell. In contrast, the DNA inside the mitochondria and chloroplast only carries out functions that are specific to those organelles.
Arrangement of DNA within Nucleus
The regulation of gene expression inside the nucleus is dependent on many factors, including the DNA structure. The...
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The Nucleus01:25

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The nucleus is a membrane-bound organelle that acts as a control center in a eukaryotic cell. It contains chromosomal DNA, which controls gene expression and precisely regulates the production of proteins within the cell. In contrast, the DNA inside the mitochondria and chloroplast only carries out functions that are specific to those organelles.
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Within the human body, a complex and detailed system of trillions of cells works in unison to sustain life. Each cell houses a nucleus, which contains 46 chromosomes divided into 23 pairs. Chromosomes are highly coiled structures made of the genetic material DNA. These chromosomes are essential carriers of genetic information, with half inherited from the mother through her egg and the other half from the father's sperm, combining to create the unique genetic makeup of an individual.
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Nuclear Protein Sorting01:34

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Nuclear protein sorting is the selective trafficking of histones, polymerases, gene regulatory proteins into the nucleus and exporting RNAs and ribosomes to the cytosol. It is a tightly controlled process that regulates gene expression within a cell.
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The cell is chemically composed of water, organic molecules and inorganic ions.
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In Vivo Proximity Biotinylation for Protein Interaction Studies in Paramecium tetraurelia
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The Matter/Life Nexus in Biological Cells.

Vishal S Sivasankar1, Roseanna N Zia1

  • 1Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, Missouri, USA;

Annual Review of Chemical and Biomolecular Engineering
|June 9, 2025
PubMed
Summary

Scientists explore the physics and biochemistry of life's origins, investigating how spatial organization and compartmentalization in cells may explain the transition from nonliving matter to living organisms. Whole-cell modeling offers new insights into this complex matter/life nexus.

Keywords:
cell crowdingliving physicsmatter/life nexusphysics of lifesynthetic biologywhole-cell modeling

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Area of Science:

  • Biophysics
  • Systems Biology
  • Synthetic Biology

Background:

  • The historical quest to define life has evolved from seeking a vital force to understanding unique functional gains like reproduction and adaptation.
  • Early concepts of a life force persisted until the 19th century, later replaced by an atomic understanding of life's unique properties.
  • Technological advancements spurred fields like structural, systems, and synthetic biology, aiming to replicate life's functions.

Purpose of the Study:

  • To investigate how experimental and computational advances illuminate the connection between physics and cellular biochemistry.
  • To explore how renewed focus on spatial organization and compartmentalization aids in understanding the matter/life nexus.
  • To examine the role of whole-cell modeling and synthesis in understanding the transition from nonliving matter to life.

Main Methods:

  • Review of experimental and computational advances in the last decade.
  • Analysis of the coupling between physics and cellular biochemistry.
  • Exploration of whole-cell modeling and synthesis approaches.

Main Results:

  • Recent advances highlight the critical interplay between physics and cellular biochemistry in understanding life.
  • Spatial organization and compartmentalization are recognized as key factors in the matter/life transition.
  • Whole-cell modeling and synthesis are providing novel perspectives on cellular complexity.

Conclusions:

  • Understanding the matter/life nexus requires integrating physical principles with cellular biochemistry.
  • Spatial organization and compartmentalization are crucial for emergent life properties.
  • Future research leveraging whole-cell modeling and synthesis holds promise for synthesizing and understanding living cells.