Essential component of the mitochondrial outer membrane sorting assembly machinery (SAM or TOB) complex, which is required for the sorting of proteins with complicated topology, such as beta-barrel proteins, to the mitochondrial outer membrane after import by the TOM complex. Component of the mitochondrial outer membrane sorting assembly machinery (SAM or TOB) complex, which at least consists of SAM35, SAM37 and SAM50. Present with 1470 molecules/cell in log phase SD medium.