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Artificial RNA Polymerase II Elongation Complexes for Dissecting Co-transcriptional RNA Processing Events

Artificial RNA Polymerase II Elongation Complexes for Dissecting Co-transcriptional RNA Processing Events

Published on: May 13, 2019

Poly(ADP-ribosyl)ating enzymes cooperate to coordinate development.

Guillaume Bordet¹, Iaroslava Karpova¹, Alexei V Tulin²

¹Department of Biomedical Sciences, School of Medicine and Health Sciences, University of North Dakota, 501 North Columbia Road, Stop 9061, Grand Forks, ND, 58202, USA.

Scientific Reports

|December 21, 2022

Summary

Poly(ADP-ribose) enzymes, PARP-1 and PARG, coordinate gene expression during developmental transitions. This collaboration prevents aberrant gene reactivation, maintaining developmental integrity and avoiding potential tumor formation.

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The Multifaceted Benefits of Protein Co-expression in Escherichia coli

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Published on: February 5, 2015

Area of Science:

Developmental Biology
Molecular Biology
Epigenetics

Background:

Transcriptome undergoes significant changes during developmental stage transitions.
Uncontrolled gene expression reactivation can lead to anarchic proliferation and malignancy.
Chromatin factors are crucial regulators of gene expression during development.

Purpose of the Study:

To investigate the role of Poly(ADP-ribose) enzymes in regulating gene expression during developmental transitions.
To elucidate the cooperative function of PARP-1 and PARG in maintaining transcriptional integrity.

Main Methods:

Analysis of gene expression profiles during larval/pupa transition.
Investigating the roles of PARP-1 and PARG in gene regulation.

Main Results:

PARP-1 and PARG cooperate to temporally regulate gene expression.
Both enzymes are essential for repressing digestive enzyme and larval cuticle protein genes.
PARG positively regulates defense response genes during this transition.

Conclusions:

PARP-1 and PARG exhibit a cooperative coordination to maintain expression profile integrity between developmental stages.
This regulation is critical for preventing the reactivation of stage-specific genes.
The findings highlight the importance of these enzymes in normal development and preventing oncogenesis.