Abstract:
:Disruption of gene regulation by sequence variation in non-coding regions of the genome is now recognised as a significant cause of human disease and disease susceptibility. Sequence variants in cis-regulatory elements (CREs), the primary determinants of spatio-temporal gene regulation, can alter transcription factor binding sites. While technological advances have led to easy identification of disease-associated CRE variants, robust methods for discerning functional CRE variants from background variation are lacking. Here we describe an efficient dual-colour reporter transgenesis approach in zebrafish, simultaneously allowing detailed in vivo comparison of spatio-temporal differences in regulatory activity between putative CRE variants and assessment of altered transcription factor binding potential of the variant. We validate the method on known disease-associated elements regulating SHH, PAX6 and IRF6 and subsequently characterise novel, ultra-long-range SOX9 enhancers implicated in the craniofacial abnormality Pierre Robin Sequence. The method provides a highly cost-effective, fast and robust approach for simultaneously unravelling in a single assay whether, where and when in embryonic development a disease-associated CRE-variant is affecting its regulatory function.
journal_name
PLoS Genetjournal_title
PLoS geneticsauthors
Bhatia S,Gordon CT,Foster RG,Melin L,Abadie V,Baujat G,Vazquez MP,Amiel J,Lyonnet S,van Heyningen V,Kleinjan DAdoi
10.1371/journal.pgen.1005193subject
Has Abstractpub_date
2015-06-01 00:00:00pages
e1005193issue
6eissn
1553-7390issn
1553-7404pii
PGENETICS-D-14-02968journal_volume
11pub_type
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