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Cell Mol Life Sci. 2009 Dec;66(23):3675-84. doi: 10.1007/s00018-009-0097-0. Epub 2009 Jul 25.

Role of SoxB1 transcription factors in development.

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Department of Cellular and Molecular Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan.


SoxB1 factors, which include Sox1, 2, and 3, share more than 90% amino acid identity in their DNA binding HMG box and participate in diverse developmental events. They are known to exert cell-type-specific functions in concert with other transcription factors on Sox factor-dependent regulatory enhancers. Due to the high degree of sequence similarity both within and outside the HMG box, SoxB1 members show almost identical biological activities. As a result, they exhibit strong functional redundancy in regions where SoxB1 members are coexpressed, such as neural stem/progenitor cells in the developing central nervous system.

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