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Gene. 2005 Oct 10;359:1-17.

The SCAN domain family of zinc finger transcription factors.

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Department of Pathology, Children's Hospital Boston and Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA.


Zinc finger transcription factor genes represent a significant portion of the genes in the vertebrate genome. Some Cys2His2 type zinc fingers are associated with conserved protein domains that help to define these regulators. A novel domain of this type, the SCAN domain, is a highly conserved 84-residue motif that is found near the N-terminus of a subfamily of C2H2 zinc finger proteins. The SCAN domain, which is also known as the leucine rich region, functions as a protein interaction domain, mediating self-association or selective association with other proteins. Here we define the mouse SCAN domain and annotate the mouse SCAN family members. In addition to a single SCAN domain, some of the members of the mouse SCAN family members have a conserved N-terminal motif, a KRAB domain, SANT domains and a variable number of C2H2 type zinc fingers (3-14). The genes encoding mouse SCAN domains are clustered, often in tandem arrays, and are capable of generating isoforms that may affect the function of family members. Although the function of most of the family members is not known, an overview of selected members of this group of transcription factors suggests that some of the mouse SCAN domain family members play roles in cell survival and differentiation.

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