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  • Title: ADAM 13: a novel ADAM expressed in somitic mesoderm and neural crest cells during Xenopus laevis development.
    Author: Alfandari D, Wolfsberg TG, White JM, DeSimone DW.
    Journal: Dev Biol; 1997 Feb 15; 182(2):314-30. PubMed ID: 9070330.
    Abstract:
    Embryonic development involves a series of cell adhesive interactions that provide mechanical and instructive information required for morphogenesis. The ADAMs family of membrane-anchored proteins, containing a disintegrin and metalloprotease domain, is well suited for participating in such developmental events. They encode not only a potential adhesive function, through an integrin-binding disintegrin domain, but also a potential antiadhesive function, through a zinc-dependent metalloprotease domain. In order to investigate the role of ADAMs in early development we cloned a cDNA encoding a novel member of the ADAM family from a Xenopus laevis neurula stage library. We call this cDNA, and the 915-amino-acid protein it encodes, ADAM 13, X-ADAM 13 RNA is expressed during embryogenesis from the midblastula stage through tadpole stage 45. X-ADAM 13 is localized to somitic mesoderm and cranial neural crest cells during gastrulation, neurulation, and in tail bud stages. Sequence analyses of the X-ADAM 13 metalloprotease and disintegrin domains indicate that the protein is likely to be involved in both proteolytic and cell-adhesive functions. The X-ADAM 13 sequence is most closely related to that of mouse meltrin alpha, which is implicated in myoblast fusion. Our data suggest that X-ADAM 13 may be involved in neural crest cell adhesion and migration as well as myoblast differentiation.
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