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lüll The bone morphogenetic protein 1/Tolloid-like metalloproteinases Hopkins DR; Keles S; Greenspan DSMatrix Biol 2007[Sep]; 26 (7): 508-23A decade ago, bone morphogenetic protein 1 (BMP1) was shown to provide the activity necessary for proteolytic removal of the C-propeptides of procollagens I-III: precursors of the major fibrillar collagens. Subsequent studies have shown BMP1 to be the prototype of a small group of extracellular metalloproteinases that play manifold roles in regulating formation of the extracellular matrix (ECM). Soon after initial cloning of BMP1, genetic studies showed the related Drosophila proteinase Tolloid (TLD) to be necessary for the formation of the dorsal-ventral axis in early embryogenesis. It is now clear that the BMP1/TLD-like proteinases, conserved in species ranging from Drosophila to humans, act in dorsal-ventral patterning via activation of transforming growth factor beta (TGFbeta)-like proteins BMP2, BMP4 (vertebrates) and decapentaplegic (arthropods). More recently, it has become apparent that the BMP1/TLD-like proteinases are activators of a broader subset of the TGFbeta superfamily of proteins, with implications that these proteinases may be key in orchestrating the formation of ECM with growth factor activation and BMP signaling in morphogenetic processes.|Animals[MESH]|Bone Morphogenetic Protein 1[MESH]|Bone Morphogenetic Proteins/*physiology[MESH]|Collagen/physiology[MESH]|Extracellular Matrix/physiology[MESH]|Humans[MESH]|Metalloendopeptidases/*physiology[MESH]|Metalloproteases/*physiology[MESH]|Models, Biological[MESH] |