Constans J, Viau M, Gouaillard C
Hum Genet. 1980;55(1):119-21. doi: 10.1007/BF00329137.
The authors studied Pi polymorphism using the Separator isofocusing method with slight modification. A new Pi allele was observed. Family pedigrees confirmed co-dominant inheritance with other Pi alleles. According to the electrophoretic mobility of its isoprotein bands, and to its frequency (0.04) this new allele is considered as a fourth Pi M subtype: Pi M4.
作者采用稍加改良的等聚焦分离法研究了Pi多态性。观察到一个新的Pi等位基因。家系谱系证实其与其他Pi等位基因呈共显性遗传。根据其同工蛋白带的电泳迁移率及其频率(0.04),这个新等位基因被认为是第四个Pi M亚型:Pi M4。