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<DIV><FONT size=2>Hello everyone:</FONT></DIV>
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<DIV><FONT size=2>I stretched a DNA molecule, and get a graph of extension vs.
force. My result is very like the graph in several articles in shape. But
the number of my force is about five times larger than the
number in the articles.</FONT></DIV>
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<DIV><FONT size=2>Where will the problem be?</FONT></DIV>
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<DIV><FONT size=2>There is something wrong in the pdb file? my mdp file isn't
right? my protocl isn't suitable? or there is something
else? </FONT></DIV></BODY></HTML>