Abstract
The expression of each locus in our genome is regulated by a gene-potentiative mechanism, whereby the gene first assumes the necessary structural conformation to enable transcription. This serves as the cornerstone for the three-tiered regulatory mechanism of potentiation, i.e., the opening of a chromatin domain, initiation of transcription, and transcript elongation. Although this is now generally accepted as the pathway that mediates gene expression, it has never been shown directly to control the expression of any heart-related gene. Lysyl oxidase enzymatically crosslinks members of the extracellular matrix, including elastin and collagen. Formation of these structures is essential to development and tissue repair. This system has enabled us to begin to address the underlying mechanism governing the selection of connective tissue genes for expression. However, before one can dissect this mechanism, it is necessary to define and characterize the locus, i.e., the corresponding genic domain. Our progress toward creating the resources necessary to unravel this mechanism is summarized in this review.
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Martins, R.P., Krawetz, S.A. Characterizing a human lysyl oxidase chromosomal domain. Mol Biotechnol 15, 225–235 (2000). https://doi.org/10.1385/MB:15:3:225
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DOI: https://doi.org/10.1385/MB:15:3:225