Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

The right dose for every sex.

Sascha Mendjan1, Asifa Akhtar

  • 1European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany.

Chromosoma
|November 25, 2006
PubMed
Summary

The male X chromosome in Drosophila is transcriptionally upregulated twofold for dosage compensation, unlike in mammals. Male-specific lethal (MSL) factors are key to this process, influencing gene regulation and RNA processing.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

H4K16ac contributes to chromatin compartment reorganization during mitotic and meiotic transitions.

Cell reports·2026
Same author

Histone acetylation-dependent clustering of BRD2 instructs transcription dynamics.

Nature genetics·2026
Same author

Stage-specific epigenetic priming amplifies gene activation during lineage commitment.

Science advances·2026
Same author

Nucleoli-localized KANSL2 as an epigenetic regulator of ribosome biogenesis in glioblastoma cells.

Communications biology·2026
Same author

KANSL3 directs transcriptional programs essential for hepatic metabolism and differentiation.

Life science alliance·2025
Same author

Hbo1 and Msl complexes preserve differential compaction and H3K27me3 marking of active and inactive X chromosomes during mitosis.

Nature cell biology·2025

Area of Science:

  • Epigenetics and molecular biology
  • Chromatin regulation and gene expression
  • Comparative genomics of sex chromosomes

Background:

  • Sex chromosomes serve as models for studying chromatin regulation and epigenetics.
  • Drosophila's male X chromosome undergoes dosage compensation, upregulating transcription twofold, unlike mammalian X chromosome inactivation.
  • Dosage compensation in Drosophila offers insights into epigenetic regulation, histone modifications, and noncoding RNAs.

Purpose of the Study:

  • To investigate the role of Male-specific lethal (MSL) factors in Drosophila dosage compensation.
  • To explore the association of MSL complex with other cellular components like nuclear pore complexes and exosome subunits.
  • To understand the regulatory mechanisms of transcription, RNA processing, and nuclear organization involving the MSL complex.

Main Methods:

  • Biochemical studies to identify factors associating with the MSL complex.
  • Global analysis of MSL complex binding sites on the X chromosome.
  • Investigating the functional implications of MSL complex interactions with nuclear pore and exosome components.

Main Results:

  • MSL factors form the dosage compensation complex crucial for X-linked gene regulation.
  • MSL complex associates with nuclear pore complex components and exosome subunits.
  • MSL complexes preferentially bind to the 3' ends of genes on the X chromosome.

Conclusions:

  • The MSL complex plays a significant role in the transcriptional upregulation of the male X chromosome in Drosophila.
  • Findings suggest MSL complex involvement in transcription elongation and RNA processing.
  • The study highlights the MSL complex's potential role in nuclear organization and chromatin remodeling.

Related Experiment Videos