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Induction of NF-kappa B DNA-binding activity during the G0-to-G1 transition in mouse fibroblasts
Journal article   Open access   Peer reviewed

Induction of NF-kappa B DNA-binding activity during the G0-to-G1 transition in mouse fibroblasts

A S Baldwin, Jr, J C Azizkhan, D E Jensen, A A Beg and L R Coodly
Molecular and cellular biology, v 11(10), pp 4943-4951
01 Oct 1991
PMID: 1922027
url
https://doi.org/10.1128/mcb.11.10.4943View
Published, Version of Record (VoR)Open Access (License Unspecified) Open

Abstract

Animals Base Sequence Binding Sites - genetics Cell Line Fibroblasts G1 Phase Gene Expression Regulation - drug effects Genes, MHC Class I Genes, myc Growth Substances - pharmacology HIV Enhancer - genetics Mice Molecular Sequence Data NF-kappa B - metabolism Promoter Regions, Genetic - genetics Resting Phase, Cell Cycle
A DNA-binding factor with properties of NF-kappa B and another similar activity are rapidly induced when growth-arrested BALB/c 3T3 cells are stimulated with serum growth factors. Induction of these DNA-binding activities is not inhibited by pretreatment of quiescent cells with the protein synthesis inhibitor cycloheximide. Interestingly, the major NF-kappa B-like activity is not detected in nuclear extracts of proliferating cells, and thus its expression appears to be limited to the G0-to-G1 transition in 3T3 cells. These DNA-binding activities bind many of the expected NF-kappa B target sequences, including elements in the class I major histocompatibility complex and human immunodeficiency virus enhancers, as well as a recently identified NF-kappa B binding site upstream of the c-myc gene. Furthermore, both the class I major histocompatibility complex and c-myc NF-kappa B binding sites confer inducibility on a minimal promoter in 3T3 cells stimulated with serum growth factors. The results demonstrate that NF-kappa B-like activities are immediate-early response proteins in 3T3 cells and suggest a role for these factors in the G0-to-G1 transition.

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Web of Science research areas
Biochemistry & Molecular Biology
Cell Biology
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