Abstract:
:The identity of cDNA encoding beta 1,4 galactosyltransferase (EC 2.4.1.38) has been controversial, since two independent and unrelated cDNAs have been cloned (GTcDNA-1 and -2), both of which are thought to encode beta 1,4 galactosyltransferase. We have resolved this issue by examining the expression of the corresponding mRNAs in tissues possessing varying levels of galactosyltransferase activity. The expression of GTcDNA-1 parallels the level of galactosyltransferase activity assayed enzymatically, while the expression of GTcDNA-2 is unrelated to the level of enzyme activity, being virtually undetectable in tissues with abundant galactosyltransferase activity. GTcDNA-2, therefore, does not likely encode beta 1,4 galactosyltransferase, but rather, encodes a product that indirectly influences enzyme activity following cellular transfection.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Lopez LC,Shur BDdoi
10.1016/s0006-291x(88)80763-0subject
Has Abstractpub_date
1988-11-15 00:00:00pages
1223-9issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(88)80763-0journal_volume
156pub_type
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