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Related Concept Videos

Nucleosome Remodeling02:54

Nucleosome Remodeling

Nucleosomes are the basic units of chromatin compaction. Each nucleosome consists of the DNA bound tightly around a histone core, which makes the DNA inaccessible to DNA binding proteins such as DNA polymerase and RNA polymerase. Hence, the fundamental problem is to ensure access to DNA when appropriate, despite the compact and protective chromatin structure.
Nucleosome remodeling complex
Eukaryotic cells have specialized enzymes called ATP-dependent nucleosome remodeling enzymes. These enzymes...
Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
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Embryonic Connective Tissues

During early development, the embryo forms two types of connective tissues— the mesenchyme and mucoid connective tissue.
The mesenchyme is the first connective tissue that emerges in the developing embryo. It consists of loosely arranged multipotent mesenchymal cells and reticular fibers in the extracellular matrix. This loose arrangement allows easy migration of cells, which is essential for germ layer positioning, patterning, and organ morphogenesis during embryonic development. Mesenchyme is...
Structural Protein Function01:56

Structural Protein Function

Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
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Neurulation01:30

Neurulation

Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the anterior...
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Cytoskeletal Accessory Proteins

The cytoskeleton is an essential cell component that plays several structural and functional roles. However, the filaments that make up the cytoskeleton cannot function independently and depend on the accessory or ancillary proteins to effectively carry out their function. Accessory proteins associate with cytoskeletal filaments and their monomers, aiding filament formation and function. They also help in the cross-communication among cytoskeletal filaments. Cytoskeletal accessory proteins are...

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Related Experiment Video

Updated: Jul 16, 2026

Chromatin Immunoprecipitation Assay for Tissue-specific Genes using Early-stage Mouse Embryos
11:02

Chromatin Immunoprecipitation Assay for Tissue-specific Genes using Early-stage Mouse Embryos

Published on: April 29, 2011

Nucleoskeletal Proteins in Early Embryogenesis.

Yasuki Miyagawa1, Kei Miyamoto2,3

  • 1Laboratory of Animal Reproductive Physiology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.

Advances in Experimental Medicine and Biology
|July 15, 2026
PubMed
Summary

The nucleoskeleton, composed of proteins like lamins and nuclear actin, plays a vital role in early vertebrate embryogenesis. Its dynamics influence nuclear structure, genome organization, and gene expression during development.

Keywords:
Early embryogenesisLaminNuclear actinNuclear structureNucleoskeleton

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Last Updated: Jul 16, 2026

Chromatin Immunoprecipitation Assay for Tissue-specific Genes using Early-stage Mouse Embryos
11:02

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Published on: April 29, 2011

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Published on: January 20, 2013

Double Whole Mount in situ Hybridization of Early Chick Embryos
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Published on: October 27, 2008

Area of Science:

  • Developmental Biology
  • Cell Biology
  • Genetics

Background:

  • Embryogenesis involves complex cellular events, including zygotic genome activation and cell fate specification.
  • Gene expression regulation is primarily attributed to chromatin-based mechanisms within the nucleus.
  • Non-chromatin nuclear proteins, termed nucleoskeletal proteins, are increasingly recognized for their role in nuclear and chromatin structure.

Purpose of the Study:

  • To review the dynamics and functions of nucleoskeletal proteins during early vertebrate embryogenesis.
  • To explore the influence of nuclear architecture on gene expression and developmental programs.
  • To highlight the significance of the nucleoskeleton in shaping nuclear structure and genome organization.

Main Methods:

  • Literature review focusing on nucleoskeletal proteins in early embryogenesis.
  • Synthesis of current findings on nuclear structure and gene expression.
  • Analysis of the roles of lamins and nuclear actin in developmental processes.

Main Results:

  • Nucleoskeletal proteins, including lamins and nuclear actin, are critical for early embryogenesis.
  • Nucleoskeleton dynamics are essential for establishing cell-type-specific nuclear structure and genome organization.
  • Nuclear architecture actively influences gene expression patterns and developmental trajectories.

Conclusions:

  • The nucleoskeleton is a key determinant of nuclear structure and function during embryonic development.
  • Understanding nucleoskeletal protein dynamics provides insights into gene regulation and cell fate specification.
  • Nuclear architecture plays an active, rather than passive, role in orchestrating embryogenesis.