6.3.4.10	Mg2+	-	702499, 703738, 704561, 705752, 706629	
6.3.4.10	Mg2+	Mg2+ is probably required primarily for the synthesis of biotinyl-AMP from ATP and biotin, but not for the transfer of the biotin moiety from this intermediate to the apocarboxylase	1394	
6.3.4.10	Mg2+	required	1394