ABSTRACT
Rabbit immunoglobulin G (IgG) heavy-chain allotypes, e allotypes are determined by an amino acid substitution at position 309 in C
2. The e14 allotype heavy chains possess threonine at position 309, whereas e15 allotype heavy chains possess alanine at that location. They are determined by alleles at the
de
locus
that encodes rabbit gamma chain constant regions.
