>From jr32@XXXX Mon Jun 02 14:03:26 1997 Envelope-to: ma11@XXXX Delivery-date: Mon, 2 Jun 1997 14:03:26 +0100 John, >Is shof (shut off) = esg ? Michael Yes. Gary Hime says '...I am now convinced that shof is a specific allele of esg. Most of the P alleles cluster just 5' of the esg message, in the region that Shigeo Hayashi has found a testis specific esg enhancer. Also esg is expressed in precisely the cell types that I see affected.......the ammunition P was esg[P2]' (P2 is the name that Hayashi et al. 1993 Dev 118:105-115 gave to an insertion from Bier et al. 1989 Genes Dev. 3 1273-1287) John