Strongylocentrotus purpuratus Genes in Development:
Cell type-specific transcription factor
SpF1
Function
SpF1 is a Spec-DNA binding protein similar to the vertebrate transcription
factor USF
(upstream stimulatory factor) (Tomlinson et al., 1990).
USF binds the major late promoter of adenovirus, as well as variety of
other mammalian genes containing the core sequence of CACGTG.