Koshland, Daniel E. <br/><br/>
The properties of enzymes II ( motion picture) :  cooperativity / 
Daniel Koshland. 
 - Milton Keynes :  The Open University Press,  1978. 
 - 1 film reel (24 min.) :  sd., col. ;  16 mm. + notes 
<br/><br/> Prof. Koshland explained cooperativity and the sigmoid curve in terms of the  models illustrated in Fig.1.  These two theories rest on quite different assumptions.  The sequential model proposed by Prof. Koshland & his co-workers depends upon the property of flexibility.  The symmetry model of Monod, Wyman  & Changenx requires that all subunits in the molucle are in the same confirmational form.  Backup available in VHS 1/2 in. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Enzymes.