An Erythroid Enhancer of BCL11A Subject to Genetic Variation Determines Fetal Hemoglobin Level

Author:

Bauer Daniel E.123,Kamran Sophia C.34,Lessard Samuel5,Xu Jian13,Fujiwara Yuko1,Lin Carrie1,Shao Zhen1,Canver Matthew C.3,Smith Elenoe C.1,Pinello Luca6,Sabo Peter J.78,Vierstra Jeff78,Voit Richard A.9,Yuan Guo-Cheng610,Porteus Matthew H.9,Stamatoyannopoulos John A.78,Lettre Guillaume5,Orkin Stuart H.1234

Affiliation:

1. Division of Hematology/Oncology, Boston Children’s Hospital, Boston, MA 02115, USA.

2. Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA.

3. Harvard Medical School, Boston, MA 02115, USA.

4. Howard Hughes Medical Institute, Boston, MA 02115, USA.

5. Montreal Heart Institute and Université Montréal, Montreal, Quebec H1T 1C8, Canada.

6. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA 02115, USA.

7. Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA.

8. Department of Medicine, University of Washington, Seattle, WA 98195, USA.

9. Department of Pediatrics, Stanford University, Palo Alto, CA 94304, USA.

10. Harvard School of Public Health, Boston, MA 02115, USA.

Abstract

BCL11A Variants Recent chromatin mapping data have suggested that trait-associated variants often mark regulatory DNA. However, there has been little rigorous experimental investigation of regulatory variation. Bauer et al. (p. 253 ; see the Perspective by Hardison and Blobel ) performed an in-depth study of the BCL11A fetal hemoglobin-associated locus. The trait-associated variants revealed a chromatin signature that enhanced erythroid development. The enhancer was required for erythroid expression of BCL11A and thus for globin gene expression.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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