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  • Title: Isoelectric focusing studies of aldehyde dehydrogenases from mouse tissues: variant phenotypes of liver, stomach and testis isozymes.
    Author: Rout UK, Holmes RS.
    Journal: Comp Biochem Physiol B; 1985; 81(3):647-51. PubMed ID: 4040841.
    Abstract:
    Isoelectric focusing techniques (IEF) were used to examine the tissue distribution and genetic variability of aldehyde dehydrogenases (AHDs) from inbred strains of mice. Twelve zones of AHD activity were resolved which were differentially distributed between tissues. Liver extracts exhibited highest activity for most enzymes, with the exception of isozymes found in stomach (AHD-4) and testis (AHD-4 and AHD-6). Genetic variants for AHD-1 (liver mitochondrial isozyme) and AHD-4 (stomach isozyme) were examined from inbred strains and F1 hybrid animals. The results were consistent with dimeric subunit structures (designated as A2 and D2 isozymes respectively). IEF patterns for activity variants of testis-specific AHD-6 were identical, with 3-banded phenotypes being observed. pI values for the AHD forms as well as for aldehyde oxidase and xanthine oxidase isozymes, which stain in the absence of coenzyme, were reported.
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