This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The ABC superfamily is one of the largest known families of proteins. Members of the ABCB and ABCC subfamilies play significant roles in physiology, toxicology, pharmacology, and disease; however, the mechanisms that regulate their expression are not well understood. This project uses comparative sequence analysis strategies to predict putative regulatory sequences in ABCB and ABCC genes. Initial studies focused on noncoding (5' upstream and intron) sequences for the cystic fibrosis transmembrane conductance regulator (CFTR; ABCC7). Examination of available genomic alignment programs suggested that this approach was ineffective for finding regulatory regions in CFTR due to divergence in noncoding regions.
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