Abstract:
:We have cloned, sequenced and annotated segments of DNA spanning the mouse, chicken and pufferfish alpha globin gene clusters and compared them with the corresponding region in man. This has defined a small segment ( approximately 135-155 kb) of synteny and conserved gene order, which may contain all of the elements required to fully regulate alpha globin gene expression from its natural chromosomal environment. Comparing human and mouse sequences using previously described methods failed to identify the known regulatory elements. However, refining these methods by ranking identity scores of non-coding sequences, we found conserved sequences including the previously characterized alpha globin major regulatory element. In chicken and pufferfish, regions that may correspond to this element were found by analysing the distribution of transcription factor binding sites. Regions identified in this way act as strong enhancer elements in expression assays. In addition to delimiting the alpha globin chromosomal domain, this study has enabled us to develop a more sensitive and accurate routine for identifying regulatory elements in the human genome.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Flint J,Tufarelli C,Peden J,Clark K,Daniels RJ,Hardison R,Miller W,Philipsen S,Tan-Un KC,McMorrow T,Frampton J,Alter BP,Frischauf AM,Higgs DRdoi
10.1093/hmg/10.4.371subject
Has Abstractpub_date
2001-02-15 00:00:00pages
371-82issue
4eissn
0964-6906issn
1460-2083journal_volume
10pub_type
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