The present invention concerns s-ship promoter compositions and methods
using the promoter. It includes polynucleotides, vectors, host cells, and
transgenic animal including an s-ship promoter controlling the expression
of a heterologous nucleic acid. Methods of the invention concern methods
of expressing a heterologous nucleic acid is a tissue-specific,
developmental-specific, or temporally controlled manner. Other methods
includes screening methods and therapeutic methods.