rhGH variants 95% Confidence Limit Potency  (IU/mg) Relative %*
Lower Upper
 Met-14 sulfoxide rhGH 94.6 122.9 3.2 108
 Met-125 sulfoxide rhGH 77.0 104.2 2.7 90
 Des-Phe-Pro rhGH 95.1 138.5 3.4 114
 Deamidated rhGH 80.5 120.9 3.0 100
Table 6: Biological activities of individual rhGH variants isolated from SR-rhGH stressed at 60ºC for 24 hours by cell proliferation assay.