PMID: 8602367Feb 1, 1996Paper

Identification of a second conserved element within the coding sequence of a mouse H3 histone gene that interacts with nuclear factors and is necessary for normal expression

Nucleic Acids Research
N K KaludovM M Hurt

Abstract

Replication-dependent histone genes of all four nucleosomal classes are coordinately up-regulated at the beginning of S phase of the eukaryotic cell cycle. The universality and importance of this process in eukaryotic cells suggest that common regulatory mechanisms are involved in controlling the high level of expression of these histone genes. We have previously identified the alpha element within mouse H2a.2 and H3.2 coding region activating sequences (CRAS), which is involved in regulation of these two replication-dependent genes. Here we report the identification of a second element within the mouse histone CRAS, the omega element. This element interacts with nuclear proteins and we present in vivo evidence that this sequence is required for normal expression. Omega nucleotides involved in interaction with nuclear proteins have been precisely mapped by menas of DNase I footprinting and methylation interference assays. A naturally occurring mutation in the omega sequence is found in a replication-independent H3.3 gene. Mutation of the H3.2 omega element to that of the H3.3 sequence (3 nt changes) caused a 4-fold drop in in vivo expression of the H3.2 gene in stably transfected CHO cells, equally the effect of mutation of all...Continue Reading

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Citations

Mar 2, 2005·Seminars in Immunology·Christopher B WilsonDavid R Fitzpatrick
Jan 18, 2003·Biochimica Et Biophysica Acta·Gary C HorvathW Stephen Kistler
Apr 30, 1996·Proceedings of the National Academy of Sciences of the United States of America·N K KaludovM M Hurt
Sep 18, 1997·Proceedings of the National Academy of Sciences of the United States of America·Y Huang, G G Carmichael
Sep 17, 2005·Biochimie·Sophie JaegerFranck Martin
Nov 20, 1998·Molecular and Cellular Biology·K A EliassenM M Hurt

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