Two series of somatic cell hybrids were made by fusion of human cells with karyotypes 46,X,t(X;2;15)(q22;p12;p12) and 46,XX,t(5;7)(q13;p15) and rodent cells. Chromosome and isozyme analysis of human chromosomes and gene products in the hybrids localized GLA to Xpter----q22, HEXB to 5q13----qter, in both cases narrowing the regional assignments, and ARSB to 5pter----q13.
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Fox et al. (2008) studied this question.