Abstract
This work deals with 3C (Chromosome Conformation Capture) analysis of the chicken α-globin gene domain in embryonic erythrocytes and lymphoid cells. Ligation products were quantitatively analyzed by real-time PCR with TaqMan probes. It was found that in lymphoid cells, where α-globin gene is not active, the domain has a relatively extended configuration. In embryonic erythrocytes that transcribe αD and αA genes, simultaneous interaction of several domain elements was revealed including the major regulatory element, the erythroid-specific DNase I hypersensitive site at a distance of 9 kb upstream from the α-globin gene cluster (-9 DHS), promoter of the housekeeping gene CGTHBA, the αD-globin gene promoter, and the erythroid-specific enhancer located after the α-globin gene cluster. We suppose that such interaction is necessary to provide for the active transcription status of the chicken α-globin gene domains in erythroid cells.
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Abbreviations
- BAC:
-
bacterial artificial chromosome
- 3C:
-
chromosome conformation capture
- DHS:
-
DNase I hypersensitive sites
- MRE:
-
major regulatory element
- YAC:
-
yeast artificial chromosome
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Original Russian Text © A. A. Gavrilov, S. V. Razin, 2008, published in Biokhimiya, 2008, Vol. 73, No. 11, pp. 1486–1494.
Originally published in Biochemistry (Moscow) On-Line Papers in Press, as Manuscript BM08-214, October 5, 2008.
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Gavrilov, A.A., Razin, S.V. Study of spatial organization of chicken α-globin gene domain by 3c technique. Biochemistry Moscow 73, 1192–1199 (2008). https://doi.org/10.1134/S0006297908110047
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DOI: https://doi.org/10.1134/S0006297908110047