Springer Online Journal Archives 1860-2000
Chemistry and Pharmacology
Abstract The blood catalase of a hypocatalasemic mouse mutant has been compared with that of the wild-type (normal) animal and with that of the heterozygote. Comparison is on the basis of stability to heat and to urea. Electrophoretic evidence is of no value, because all forms tested show the same mobility. Because the heterozygote heat and urea inactivation curves differ from those of the two parental forms, and because the curves are smoothly S-shaped, with no shoulders or other irregularities, it is suggested that this heterozygote produces only a single molecular form of the enzyme.
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