ADAMTS9, a novel member of the ADAM-TS/metallospondin gene family

ADAM-TS/metallospondin genes encode a new family of proteins with structura l homology to the ADAM metalloprotease-disintegrin family. However, unlike other ADAMs, these proteins contain thrombospondin type 1 (TSP1) repeats at the carboxy-terminal end and are secreted proteins instead of being membra ne bound. Members of the ADAM-TS family have been implicated in the cleavag e of proteoglycans, the control of organ shape during development, and the inhibition of angiogenesis, We have cloned a new member of the ADAM-TS/meta llospondin family designated here as ADAMTS9, This protein has a metallopro tease domain, a disintegrin-like domain, one internal TSP1 motif, and three carboxy-terminal TSP1-like submotifs, Tn contrast; to other ADAM-TS family members, ADAMTS9 is expressed in all fetal tissues examined as well as som e adult tissues. Using FISH and radiation hybrid analysis, we have localize d ADAMTS9 to chromosome 3p14.2-p14.3, an area known to be lost in hereditar y renal tumors. (C) 2000 Academic Press.