CST6 GI:4503113 cystatin M precursor 1 marsnlplal glalvafcll alprdararp qermvgelrd lspddpqvqk 50 51 aaqaavasyn mgsnsiyyfr dthiikaqsq lvagikyflt memgstdcrk 100 101 trvtgdhvdl ttcplaagaq qeklrcdfev lvvpwqnssq llkhncvqm