RT Journal Article SR Electronic T1 Presence of basic fibroblast growth factor in the early embryo JF Development JO Development FD The Company of Biologists Limited SP 147 OP 153 VO 105 IS 1 A1 Slack, J.M.W. A1 Isaacs, H.V. YR 1989 UL http://dev.biologists.org/content/105/1/147.abstract AB Mesoderm-inducing activity can be extracted from eggs or whole ovary. It binds to heparin and can be heparin or anti-bFGF but not by anti-TGFbeta. Two be identified by Western blotting and have molecular 19 and 14K. The content in embryos is about 7unitsg-1 7ngml-1) which would be sufficient for it to be acting inducer of ventral mesoderm. Attempts to detect