Plzf mediates transcriptional repression of HoxD gene expression through chromatin remodeling. Academic Article uri icon

Overview

abstract

  • The molecular mechanisms that regulate coordinated and colinear activation of Hox gene expression in space and time remain poorly understood. Here we demonstrate that Plzf regulates the spatial expression of the AbdB HoxD gene complex by binding to regulatory elements required for restricted Hox gene expression and can recruit histone deacetylases to these sites. We show by scanning forced microscopy that Plzf, via homodimerization, can form DNA loops and bridge distant Plzf binding sites located within HoxD gene regulatory elements. Furthermore, we demonstrate that Plzf physically interacts with Polycomb proteins on DNA. We propose a model by which the balance between activating morphogenic signals and transcriptional repressors such as Plzf establishes proper Hox gene expression boundaries in the limb bud.

publication date

  • October 1, 2002

Research

keywords

  • Chromatin
  • DNA-Binding Proteins
  • Homeodomain Proteins
  • Transcription Factors

Identity

Scopus Document Identifier

  • 0036775103

Digital Object Identifier (DOI)

  • 10.1016/s1534-5807(02)00289-7

PubMed ID

  • 12408802

Additional Document Info

volume

  • 3

issue

  • 4