We have identified a novel fibroblast growth factor, FGF-19, the most dista
nt member of the FGF family described to date. FGF-19 is a high affinity, h
eparin dependent ligand for FGFR4 and is the first member of the FGF family
to show exclusive binding to FGFR4. Human FGF-19 maps to chromosome 11 q13
.1, a region associated with an osteoporosis-pseudoglioma syndrome of skele
tal and retinal defects. FGF-19 message is expressed in several tissues inc
luding fetal cartilage, skin, and retina, as well as adult gall bladder and
is overexpressed in a colon adenocarcinoma cell line. (C) 1999 Academic Pr
ess.