Table 1. Homeostatic antibody serum concentration ranges and broad sense heritability estimates.

Antibody isotype	Phenotypic range (μg/mL)	Median phenotype value (μg/mL)	Broad sense heritability estimate
Total IgG	78.09–280910.17	1834.49	0.488
IgG1	58.76–173895.19	1498.06	0.518
IgG2a	10.71–2378.67	187.10	0.462
IgG2b	3.07–5448.50	149.16	0.641
IgG2c	0.29–536.33	79.45	0.661
IgG3	5.61–2906.31	101.02	0.249
IgM	7.87–271.39	44.22	0.561
IgA	4.39–257.93	41.63	0.375