Transcription factor binding to DNA requires both an appropriate binding element and suitably open chromatin, which together help to define regulatory elements within the genome.
Interestingly, Smad3 binding elements and vitamin D responsive elements are closely located in the osteocalcin promoter [ 77].
This region contains one methylated SRE element and one SP1 binding site, which are well-known transcription factors involved in the regulation of lipogenic genes such as ELOVL6 [ 1, 2, 14, 42].
The remaining five were from two hAT-like DNA transposons, one EnSpm element, one ERV/ERV2 element and one Gypsy element.
In B. microti, we identified 13 copies of IS711 elements, 2 IS2020 elements, 2 IS1953 elements, 2 ISBm1 elements, one of them disrupted by the insertion of an IS711 element, one ISBm2 element and one ISBm3 element.
To that end, we used the ConTra matrix (Hooghe et al, 2008) and found two GRE elements and one GR half binding site (Fig 5D).
To assess the binding contributions of each MIM and MIT element, we performed FP-binding experiments with fluorescently labeled peptides comprising either one or both of the IST1 MIM elements and one or both ULK3 MIT domains.
Identification of the SRF binding element, the CArG box, as one of the most highly enriched motifs in the promoters of zymosan induced genes suggests that SRF may play important roles in zymosan responses in macrophages.
The latter elements belong to a distinct cluster containing seven S288c elements and 14 elements belonging to other strains: eight SIGMA1278 elements, three YJM789 elements and one FL100, one CLIB324 and one YJM320 element.
Regulation, transcription, protein binding, and one transposable element accounted for the remaining 9% of the proteins.
