Fig. 1From: Quantitation of circulating wild-type alpha-1-antitrypsin in heterozygous carriers of the S and Z deficiency allelesStandard curves generated using purified human A1AT protein. Standard curves for the proteotypic, non-Z and non-S peptides are shown. The standard curves cover concentrations ranging from 10 mg/dL to 416 mg/dLBack to article page