Expansion of the functional domain of chicken alpha-globin genes

Expansion of the functional domain of chicken alpha-globin genes The transcriptional domain of chicken alpha-globin genes was shown to contain the non-globin coding erythroid-specific TMEM8 gene inducible upon terminal differentiation of erythroblasts. Acquirement by the chicken TMEM8 gene of the erythroid-specific expression correlates with its approachment to the cluster of alpha-globin genes as a result of inversion of a 170-kb chromosomal segment. The human TMEM8 gene is located far from the globin genes and is not expressed in erythroblasts. Transcription of the TMEM8 gene and adult globins in differentiated chicken erythroid cells is controlled by alternative activatory hubs sharing two regulatory elements (including the erythroid enhancer). A conclusion is made that in mature erythroblasts these regulatory elements shuttle between two different activatory hubs. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Expansion of the functional domain of chicken alpha-globin genes

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2010 by Pleiades Publishing, Ltd.
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795410090036
Publisher site
See Article on Publisher Site

Abstract

The transcriptional domain of chicken alpha-globin genes was shown to contain the non-globin coding erythroid-specific TMEM8 gene inducible upon terminal differentiation of erythroblasts. Acquirement by the chicken TMEM8 gene of the erythroid-specific expression correlates with its approachment to the cluster of alpha-globin genes as a result of inversion of a 170-kb chromosomal segment. The human TMEM8 gene is located far from the globin genes and is not expressed in erythroblasts. Transcription of the TMEM8 gene and adult globins in differentiated chicken erythroid cells is controlled by alternative activatory hubs sharing two regulatory elements (including the erythroid enhancer). A conclusion is made that in mature erythroblasts these regulatory elements shuttle between two different activatory hubs.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Sep 30, 2010

References

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