Repression of histone H5 gene expression in chicken mature erythrocytes is correlated with reduced DNA‐binding activities of transcription factors SP1 and GATA‐1
- 27 September 1993
- journal article
- Published by Wiley in FEBS Letters
- Vol. 331 (1-2), 141-144
- https://doi.org/10.1016/0014-5793(93)80313-j
Abstract
During the final stages of erythroid maturation, the expression of the chicken histone H5 gene ceases. The histone H5 promoter has binding sites for Sp1 and UPE-binding protein. The 3' histone H5 enhancer has binding sites for Sp1, GATA-1 and NF1. Here, we show that the DNA-binding activities of transcription factors Sp1 and GATA-1 is reduced 5- to 10-fold in mature cells, while the activities of UPE-binding protein and NF1 remain the same in mature and immature erythrocytes. The reduced activities of Sp1 and GATA-1 may contribute to the inactivation of the histone H5 gene in mature erythrocytes.Keywords
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