thus mammalian serum ig ( rabbit gamma globulin ( rgg ) ) had a shorter t1/2 ( 6.3 days ) in snake than did homologous snake igg ( 38 days ) , whereas in mice , rgg had a longer t1/2 ( 3.8 days ) than snake ig ( 0.9 days ) .
C0017007
rgg
C0021027
ig