Ad4BP (or steroidogenic factor 1, SF-1) has been implicated to be an e
ssential transcriptional factor for steroidogenesis as well as for the
development of the reproductive axis. We elucidated the structure of
the human Ad4BP gene. The gene is about 30 kb long and is split into 7
exons including a non-coding exon 1. The deduced amino acid sequence
of the human Ad4BP consists of 461 amino acid residues and was highly
homologous to those of other mammalian species. (C) 1996 Academic Pres
s, Inc.