Table 3.

Content of thiol-containing amino acids and peptides released from specific protein preparations by reduction.

FractionProtein, g/LCys, μmol/LHcy, μmol/LCysGly, μmol/LGlutathione, μmol/L
Transferrin101.0ND0.14ND
HDL1038.90.433.161.80
IgG103.00.140.36ND
α1-Acid glycoprotein1092.42.589.5913.0
Corrected to usual serum concentrations
 Transferrin∼30.3ND0.04ND
 HDL∼27.80.080.630.36
 IgG∼123.60.170.43ND
 α1-Acid glycoprotein∼0.87.40.20.771.0
After loading with CysGly
 Transferrin100.8ND0.9ND
 HDL101.60.0530.0ND
 IgG100.6ND4.6ND
 α1-Acid glycoprotein1012.41.7876.9ND