Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1965 Aug;96(2):492-4.
doi: 10.1042/bj0960492.

Activity of beta-galactosidase in homogenates and isolated microvilli fraction of jejunal mucosa from suckling rats

O Koldovský, R Noack, G Schenk, V Jirsová, A Heringová, H Braná

Activity of beta-galactosidase in homogenates and isolated microvilli fraction of jejunal mucosa from suckling rats

O Koldovský et al. Biochem J. 1965 Aug.

Abstract

1. beta-Galactosidase activity was studied in homogenates and isolated microvilli fraction of jejunal mucosa from 14-day-old suckling rats. o-Nitrophenyl beta-d-galactoside served as the substrate. 2. The microvilli fraction contains about one-third of the total activity of the original homogenate. 3. The pH optimum of the beta-galactosidase was 3.5 in the total homogenate and supernatant fraction, whereas in the microvilli fraction the maximum activity was at pH5.5. 4. This work gives further support to the view that two beta-galactosidases exist in the jejunal mucosa.

PubMed Disclaimer

References

    1. Nutr Rev. 1959 Mar;17(3):65-7 - PubMed
    1. Biochim Biophys Acta. 1963 Oct 1;77:318-28 - PubMed
    1. Biochim Biophys Acta. 1963 Mar 12;67:516-9 - PubMed
    1. Biochem J. 1965 Jan;94:266-70 - PubMed