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Transglutaminase activity of human ER-60
Hirokazu Okudo1, Makoto Kito, Tatsuya Moriyama
1Graduate School of Agriculture, Kyoto University, Uji, Japan.
Bioscience, Biotechnology, and Biochemistry
|August 7, 2002
Abstract:
Human recombinant ER-60 was confirmed to have transglutaminase activity by a microtiter plate assay. Transglutaminase activity of ER-60 did not require calcium and was inhibited by cystamine, a substrate analogue. In addition, the transglutaminase activity of ER-60 was not inhibited by SH-blocking reagents. These results suggest that the properties of the transglutaminase activity of ER-60 are different from those in the cases of known mammalian transglutaminases of which the active site includes a cysteine residue.