The effects of metal ions on esterase activities of urokinase.

Abstract:

:The esterase activity of highly purified human urokinase on Nalpha-acetylglycl-L-lysine methyl ester is strongly inhibited by 1 X 10(-5) to 1 X 10(-2)M Cu++, Hg++, Ni++, Co++, Fe+++, and Mn++ solutions, whereas Na+, K+, Ca++, and Mg++ are weakly effective. This inhibition is parallel with the inhibition of activation of plasminogenby urokinase. There is no simple linear relation between inhibiton and concentration. Addition of ethylenediaminetetraacetate or electrodialysis fully reactivates the inhibited enzyme. These results are discussed in relation to similar effects of ions on trypsin.

journal_name

Thromb Haemost

authors

Sumi H,Takada Y,Takada A

subject

Has Abstract

pub_date

1978-02-28 00:00:00

pages

46-52

issue

1

eissn

0340-6245

issn

2567-689X

journal_volume

39

pub_type

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