secreted polypeptide
Sive et al 1989. Progressive determination during formation of the anteroposterior axis in Xenopus laevis.  Cell 58:171.

plasmid source: Hazel Sive

plasmid name

relevant information for making probe, i.e. restriction sites, promoter

typical staining pattern
(jpeg 150 dpi, 60% compression

useful description including stage.

picture source: Chi Zhang