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| 001 | 872836 | ||
| 005 | 20240625095125.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.jcim.9b00157 |2 doi |
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| 245 | _ | _ | |a Post-Translational Regulation of CYP450s Metabolism As Revealed by All-Atoms Simulations of the Aromatase Enzyme |
| 260 | _ | _ | |a Washington, DC |c 2019 |b American Chemical Society64160 |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a Phosphorylation by kinases enzymes is a widespread regulatory mechanism able of rapidly altering the function of target proteins. Among these are cytochrome P450s (CYP450), a superfamily of enzymes performing the oxidation of endogenous and exogenous substrates thanks to the electron supply of a redox partner. In spite of its pivotal role, the molecular mechanism by which phosphorylation modulates CYP450s metabolism remains elusive. Here by performing microsecond-long all-atom molecular dynamics simulations, we disclose how phosphorylation regulates estrogen biosynthesis, catalyzed by the Human Aromatase (HA) enzyme. Namely, we unprecedentedly propose that HA phosphorylation at Y361 markedly stabilizes its adduct with the flavin mononucleotide domain of CYP450s reductase (CPR), the redox partner of microsomal CYP450s, and a variety of other proteins. With CPR present at physiological conditions in a limiting ratio with respect to its multiple oxidative partners, the enhanced stability of the CPR/HA adduct may favor HA in the competition with the other proteins requiring CPR’s electron supply, ultimately facilitating the electron transfer and estrogen biosynthesis. As a result, our work elucidates at atomic-level the post-translational regulation of CYP450s catalysis. Given the potential for rational clinical management of diseases associated with steroid metabolism disorders, unraveling this mechanism is of utmost importance, and raises the intriguing perspective of exploiting this knowledge to devise novel therapies. |
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| 536 | _ | _ | |a Post-Transcriptional regulation mechanism of Human Aromatase investigated by molecular simulations (jias5a_20190501) |0 G:(DE-Juel1)jias5a_20190501 |c jias5a_20190501 |f Post-Transcriptional regulation mechanism of Human Aromatase investigated by molecular simulations |x 1 |
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| 700 | 1 | _ | |a Spinello, Angelo |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Ippoliti, Emiliano |0 P:(DE-Juel1)146009 |b 2 |
| 700 | 1 | _ | |a Magistrato, Alessandra |0 P:(DE-HGF)0 |b 3 |e Corresponding author |
| 773 | _ | _ | |a 10.1021/acs.jcim.9b00157 |g Vol. 59, no. 6, p. 2930 - 2940 |0 PERI:(DE-600)1491237-5 |n 6 |p 2930 - 2940 |t Journal of chemical information and modeling |v 59 |y 2019 |x 1549-960X |
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