mammals, preferably exemplified by a gene-targeted mouse lacking one normal copy (allele) of
SOD-1, thereby producing a reduced amount of Cu/Zn SOD. In a preferred aspect, the invention
relates to homozygous SOD-1 null non-human mammals exemplified by a gene-targeted mouse
lacking both normal copies (alleles) of SOD-1, thereby producing no measurable amount …
Although we disclose herein our most preferred strategy for the development of heterozygous …