The processes of hemostasis and thrombolysis are elegantly regulated i
n order to ensure normal functions of vascular system. A search for ne
w plasminogen activators as thrombolytic agents has been carried out f
or the purpose of clinical applications to modulate thrombolytic proce
sses. In the current work, several strains and clinical isolates of St
aphylococcus aureus were screened for the fibrinolytic activity. The D
NA sequences of staphylokinase gene in the strains expressing 15 kDa p
rotein with staphylokinase activity were determined and subsequently c
ompared with three known staphylokinase gene sequences. From the seque
nce comparison a new variant of staphylokinase gene has been identifie
d in ATCC 29213 strain. The gene product needs to be further character
ized and tested for the therapeutic potential. (C) 1997 Elsevier Scien
ce Ltd.