An immunoglobulin in Newfoundland with the genetic marker Glm/z) without Glm(a) in five siblings: a possible hybrid molecule.

Inheritance of Glm(z) without Glm(a) was found in five members of a Newfoundland family. The investigations were suggestive for the transmission of a Gm haplotype (z;n-;g) coding for Glm(z) and nGlm(a) at the Fd and Fc parts, respectively, of the IgGl heavy chain.