Abstract:
:A sulfotransferase activity present in the cytosol fraction of rat submandibular and parotid salivary glands catalyzes the transfer of sulfate group from 3'-phosphoadenosine-5'-phosphosulfate to C-6 of the terminal glucose residue of Glc alpha 1 leads to 6Glc alpha 1 leads to 6Glc alpha 1 leads to 3-1, (3)-0-alkyl-2-0-acylglycerol to form sulfated triglucosyl glyceroglucolipid. The reaction proceeds at its optimum at pH 7.8, and requires the detergent Triton X-100, F1- and Mg2+. The enzyme does not catalyze the sulfation of glycosphingolipids. The apparent Km of the submandibular enzyme for triglucosyl glyceroglucolipid is 78.4 microM, and that of parotid, 58.8 microM. Analysis of the permethylated 35S-labeled enzymatic product demonstrated that the sulfate group is located at C-6 of the terminal glucose residue.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Slomiany BL,Liau YH,Zdebska E,Murty VL,Slomiany Adoi
10.1016/0006-291x(83)91072-0subject
Has Abstractpub_date
1983-06-29 00:00:00pages
817-24issue
3eissn
0006-291Xissn
1090-2104pii
0006-291X(83)91072-0journal_volume
113pub_type
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