"The secreted complement component 1 q subcomponent-like protein 4 (C1qL4) repress myoblast fusion by specifically interacting with G protein-coupled receptor BAI3 (BAI3). Stabilin-2 interacts with BAI3 and stimulates its fusion promoting activity. The resulting activated heterotrimeric G-proteins contribute to the initial recruitment of Elmo proteins to the membrane which are then stabilized on BAI3."xsd:string