Maeda N, Yang F, Barnett D R, Bowman B H, Smithies O
Nature. 1984;309(5964):131-5. doi: 10.1038/309131a0.
DNA sequencing shows that the intragenic duplication within the human haptoglobin Hp2 allele was formed by a non-homologous, probably random, crossing-over within different introns of two Hp1 genes, probably in an Hp1F / Hp1S heterozygote.
DNA测序显示，人类触珠蛋白Hp2等位基因内的基因内重复是由两个Hp1基因不同内含子内的非同源（可能是随机）交叉形成的，可能发生在Hp1F / Hp1S杂合子中。
