Table 2.

Quantification of intact heavy chains in the in vitro degradation assay.

	Alpha chain		Mu chain		Gamma chain
	2 h	16 h	16 h	48 h	2 h	16 h
IgA/M	47.2 ± 9.2%	23.8 ± 11.9%	38.6 ± 18.1%	27.3 ± 11.1%	n.d.	n.d.
SCIgA/M	64.3 ± 24.8%	26.8 ± 9.8%	47.9 ± 10.7%	38.0 ± 10.5%	n.d.	n.d.
IgG	n.d.	n.d.	n.d.	n.d.	35.4 ± 0.5%	11.4 ± 1.5%

n.d., not done.