AC45 VATPS1 protein coding gene Atp6ip1 MGI:109629 ATPase, H+ transporting, lysosomal accessory protein 1 Atp6s1 O 16A genetic mapping Gene Atp6ap1 VATPS1|Atp6s1|XAP-3|AC45|CF2|Atp6ip1|16A + CF2 http://identifiers.org/mgd/MGI:109629 XAP-3