Sandbox 45673: Difference between revisions

From Proteopedia
Jump to navigationJump to search
No edit summary
No edit summary
Line 17: Line 17:
{{Clear}}
{{Clear}}


<font size='.5'> Figure 1:Proposed mechanism of inhibition by Bull et. al. Image shows how the inhibition of 5alpha-reductase is achieved  as Finasteride is used as a substrate to create an enolate intermediate, similar to the one made  during the reduction of testosterone. However, the complex created does not allow for the proton transfer needed to complete the reduction of NADP-Dihydrofinasteride  to Finasteride, because of the change in the carbanion position<ref name="five">Bull, Herbert G.*Garcia-Calvo,Margarita Andersson,Stefan†, Baginsky, Walter F.,Chan,H. Karen,Ellsworth,‡ Dina E., Miller,§ Randall R., Stearns,Ralph A.,Bakshi,Raman K.,Rasmusson, Gary H.,Tolman,Richard L., Myers,Robert W.,Kozarich,John W.,Harris,Georgianna S. (1995, August 6) Mechanism-Based Inhibition of Human Steroid 5R-Reductase by Finasteride: Enzyme-Catalyzed Formation of NADP-Dihydrofinasteride, a Potent Bisubstrate Analog Inhibitor. http://pubs.acs.org/doi/pdf/10.1021/ja953069t</ref></font>
<font size='0.5'> Figure 1:Proposed mechanism of inhibition by Bull et. al. Image shows how the inhibition of 5alpha-reductase is achieved  as Finasteride is used as a substrate to create an enolate intermediate, similar to the one made  during the reduction of testosterone. However, the complex created does not allow for the proton transfer needed to complete the reduction of NADP-Dihydrofinasteride  to Finasteride, because of the change in the carbanion position<ref name="five">Bull, Herbert G.*Garcia-Calvo,Margarita Andersson,Stefan†, Baginsky, Walter F.,Chan,H. Karen,Ellsworth,‡ Dina E., Miller,§ Randall R., Stearns,Ralph A.,Bakshi,Raman K.,Rasmusson, Gary H.,Tolman,Richard L., Myers,Robert W.,Kozarich,John W.,Harris,Georgianna S. (1995, August 6) Mechanism-Based Inhibition of Human Steroid 5R-Reductase by Finasteride: Enzyme-Catalyzed Formation of NADP-Dihydrofinasteride, a Potent Bisubstrate Analog Inhibitor. http://pubs.acs.org/doi/pdf/10.1021/ja953069t</ref></font>