... caseincontent [29,30], the M variant, like the goat as1-CasA and Bvariants, must be considered a ‘strong’ variant, given the intensity of the isoelectrofocusing bands and the surface of the relevant ... whilecomponents e and d seem to be in common with the Avariant. Therefore, band b represents the only componentspecific to t he M variant. The intensities of the bands in the MF pattern indicate ... (M/F and M/B).Interestingly, the mutation s pecific for the M allele affects the same nucleotide as that which is deleted in the F allele, and shown to be responsible for the internal deletion of...