Related Experiment Video

Updated: Aug 18, 2026

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development
09:32

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development

Published on: June 15, 2017

MRG15 regulates embryonic development and cell proliferation

Kaoru Tominaga1, Bhakti Kirtane, James G Jackson

  • 1Department of Cellular and Structural Biology, Sam and Ann Barshop Institute for Longevity and Aging Studies, The University of Texas Health Science Center at San Antonio, San Antonio, TX 78245-3207, USA. tominaga@uthscsa.edu

Molecular and Cellular Biology
|March 31, 2005
PubMed

Insights

The protein MRG15 is essential for embryonic development. Knockout mice lacking MRG15 showed developmental delays and reduced cell proliferation, highlighting its role in chromatin remodeling and gene regulation.

Area of Science:

  • Molecular Biology
  • Developmental Biology
  • Genetics

Background:

  • MRG15 is a conserved protein associated with chromatin remodeling complexes.
  • Its precise role in mammalian development was previously unclear.

Purpose of the Study:

  • To investigate the in vivo function of MRG15 during embryonic development.

Main Methods:

  • Generation of MRG15 knockout mice.
  • Immunohistochemistry and cell proliferation assays.
  • Microarray analysis and chromatin immunoprecipitation.

Main Results:

  • MRG15 knockout resulted in embryonic lethality with developmental delay.
  • Reduced cell proliferation was observed in multiple tissues and fibroblasts.
  • Decreased alpha-globin gene expression and impaired erythroid differentiation were noted.

Conclusions:

  • MRG15 plays a critical role in embryonic development.
  • It regulates cell proliferation and gene expression, likely through chromatin remodeling.
  • Defects in MRG15 function lead to developmental abnormalities.

More Related Videos

Grafting of Beads into Developing Chicken Embryo Limbs to Identify Signal Transduction Pathways Affecting Gene Expression11:48

Grafting of Beads into Developing Chicken Embryo Limbs to Identify Signal Transduction Pathways Affecting Gene Expression

Published on: January 17, 2016

Related Concept Videos

Master Transcription Regulators02:23

Master Transcription Regulators

Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a  complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
Negative Regulator Molecules01:23

Negative Regulator Molecules

Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria.
Maintenance of the ES Cell State01:14

Maintenance of the ES Cell State

The cells of the blastocyst inner cell mass only remain pluripotent for a short time. This state of pluripotency and self-renewal can be maintained in embryonic stem (ES) cell culture by adding specific chemicals or growth factors to ensure the cells can continue dividing and later differentiate into different cell types. In some cases, the cells are grown on a feeder layer of differentiated cells, which provides the growth factors and extracellular matrix components necessary for stem cell...
Somatic to iPS Cell Reprogramming01:29

Somatic to iPS Cell Reprogramming

Reprogramming alters the gene expression in somatic cells, transforming them into induced pluripotent stem (iPS) cells over several generations. Scientists can reprogram cells by introducing genes for four transcription factors—Oct4, Sox2, Klf4, and c-Myc (OSKM) by viral or non-viral methods. These factors are also known as Yamanaka factors after Shinya Yamanaka, who first generated iPS cells using mouse skin cells. Yamanaka was awarded the Nobel Prize in Physiology or Medicine in 2012 for this...
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...