Peer-reviewed veterinary case report
Rabbit small intestinal β-galactosidases
- Journal:
- American Journal of Veterinary Research
- Year:
- 1984
- Authors:
- Toofanian, F.
- Affiliation:
- From the Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210. · United States
- Species:
- rabbit
Abstract
SUMMARY The β-galactosidase activities of the rabbit small intestinal mucosa were studied over the pH range of 2.6 to 8.4, using different substrates, and in the presence or absence of the enzyme inhibitor p-chloromercuribenzoic acid. The results indicated the presence of 4 β-galactosidases: (i) a neutral β-galactosidase (lactase) with optimum pH of 5.8, (ii) an acid β-galactosidase I with optimum pH of 3.4, (iii) an acid β-galactosidase II with optimum pH of 4.6, and (iv) a hetero β-galactosidase with pH optimum of 7.6. Seemingly, 3 of these β-galactosidases were comparable with those in other mammals, and the 4th has not been reported in other species.
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Search related cases →Original publication: https://doi.org/10.2460/ajvr.1984.45.03.535