The insertion of Velocigene cassette ZEN-Ub1 (containing the lacZ reporter gene and a loxP site flanked neomycin resistance gene cassette) created a deletion of size 9360bp between positions 130830034-130839393 of Chromosome X (Genome Build37). This deletes most of the two-exon coding region. The neo cassette was removed through subsequent cre-mediated recombination.