Azen E A
Biochem Genet. 1976 Apr;14(3-4):225-35. doi: 10.1007/BF00484762.
Electrophoresis of human tears on slab polyacrylamide gels showed five phenotypes among anodal tear proteins. These phenotypes are the expression of autosomal codominant alleles. Gene frequencies are as follows: for Caucasians, At1 = 0.99, At3 = 0.01; for Negroes, At1 = 0.97, At2 = 0.03; for Chinese, At1 = 0.98, and At4 and At5 are both approximately 0.008.
