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Related Concept Videos

Nuclear Protein Sorting01:34

Nuclear Protein Sorting

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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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Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
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Nuclear protein sorting regulates nucleus composition and gene expression, crucial for determining the fate of a eukaryotic cell. Hence, the entry and exit of molecules across the nuclear envelope is a tightly controlled process. Nuclear protein sorting can be inhibited by one of the following ways: 1) masking cargo signal sequences, 2) modifying the nuclear receptor's affinity for cargo, 3) controlling the nuclear pore size, 4) retaining the cargo during its transit to the cytosol or the...
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Methods of Nuclear Reprogramming01:24

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Nuclear reprogramming is a process of transforming one cell type into an unrelated cell type by epigenetic changes that alter the cell’s original gene expression pattern. Such epigenetic changes force cells to express a different set of genes, which play a significant role in inducing transformation into other cell types. Nuclear reprogramming offers applications in reproductive cloning for livestock propagation and regenerative medicine — developing patient-specific cells for...
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Proteins targeted to the nucleus carry short stretches of amino acid sequences called the nuclear localization signal or NLS. Classical nuclear localization signals are of two types: monopartite and bipartite NLS. Monopartite classical NLS (cNLS) consists of a single cluster of 4-8 amino acids. Bipartite cNLS consists of two clusters of  2-3 amino acids and a 9-12 residue long proline-rich linker bridging the two clusters. Signal clusters are rich in positively charged amino acids such as...
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Nuclear reprogramming is the process of switching gene expression of one cell type to that of another cell type, usually from a differentiated cell state to an undifferentiated cell state. Differentiation occurs during processes such as development and morphogenesis, tissue regeneration, and malignancy. Cells can also be artificially induced to reprogram their gene expression by techniques such as nuclear transfer, induced pluripotency, and cell fusion. Such techniques have many applications in...
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Related Experiment Video

Updated: Jan 2, 2026

Author Spotlight: Comprehensive Epigenetic Analysis for Investigating Human Cellular Plasticity and Environmental Adaptation Using Immunofluorescence Assays
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Plant nuclear proteomics--inside the cell maestro.

Matthias Erhardt1, Iwona Adamska, Octavio Luiz Franco

  • 1Department of Plant Physiology and Biochemistry, University of Konstanz, Germany.

The FEBS Journal
|July 16, 2010
PubMed
Summary

This review highlights plant nuclear proteomics, focusing on protein interactions and functions. It compares plant and mammal nuclei, proposing new technologies to advance plant cell research.

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Area of Science:

  • Plant Biology
  • Molecular Biology
  • Proteomics

Background:

  • The eukaryotic nucleus is a dynamic and complex organelle with poorly understood regulatory systems.
  • Proteomics advancements have improved the understanding of nuclear protein content and interactions.
  • Plant nuclear proteomics is in its early stages, particularly for single organelle studies.

Purpose of the Study:

  • To review the current state of plant nuclear proteomics.
  • To present recent data on the nuclear subproteome in plants.
  • To compare plant and mammalian nuclei and identify key proteins for understanding plant nuclear function.

Main Methods:

  • Literature review of proteomics studies focused on the plant nucleus.
  • Analysis of recent data on nuclear subproteomes.
  • Comparative analysis of plant and mammalian nuclear proteomes.

Main Results:

  • Recent data on the plant nuclear subproteome has been presented.
  • Key proteins potentially involved in plant nuclear function have been identified.
  • A comparison between plant and mammalian nuclei highlights unique aspects of plant nuclear organization.

Conclusions:

  • Proteomics offers valuable insights into plant nuclear complexity and function.
  • Further technological advancements are needed to fully explore the plant nuclear proteome.
  • Understanding the plant nucleus is crucial for advancing plant biology research.