Kinetics of histone hyperacetylation and deacetylation in human diploid fibroblasts.
Biochim Biophys Acta
; 762(2): 221-6, 1983 Apr 05.
Article
em En
| MEDLINE
| ID: mdl-6830873
ABSTRACT
We have utilized sodium butyrate-treated normal human diploid fibroblasts to study core histone hyperacetylation kinetics. We report a small, distinct population of core histone characterized by a very rapid rate of hyperacetylation (t1/2 approximately equal to 10-15 min for monoacetylated histone H4) compared to the slower rate (t1/2 approximately equal to 140-200 min for monoacetylated H4) observed for bulk histone. Two rates of core histone deacetylation were also detected and we demonstrated that the rapidly hypermodified histone H4 population was also rapidly deacetylated. The kinetics of histone H4 hyperacetylation and deacetylation in these cells were not significantly altered, regardless of whether cultures were exponentially growing, confluent or arrested in an essentially non-mitotic state.
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Base de dados:
MEDLINE
Assunto principal:
Histonas
/
Fibroblastos
Limite:
Humans
/
Male
/
Newborn
Idioma:
En
Revista:
Biochim Biophys Acta
Ano de publicação:
1983
Tipo de documento:
Article