Cytochromeâ P450â Induced Ordering of Microsomal Membranes Modulates Affinity for Drugs
dc.contributor.author | Barnaba, Carlo | |
dc.contributor.author | Sahoo, Bikash Ranjan | |
dc.contributor.author | Ravula, Thirupathi | |
dc.contributor.author | Medina‐meza, Ilce G. | |
dc.contributor.author | Im, Sang‐choul | |
dc.contributor.author | Anantharamaiah, G. M. | |
dc.contributor.author | Waskell, Lucy | |
dc.contributor.author | Ramamoorthy, Ayyalusamy | |
dc.date.accessioned | 2018-04-04T18:55:16Z | |
dc.date.available | 2019-05-13T14:45:27Z | en |
dc.date.issued | 2018-03-19 | |
dc.identifier.citation | Barnaba, Carlo; Sahoo, Bikash Ranjan; Ravula, Thirupathi; Medina‐meza, Ilce G. ; Im, Sang‐choul ; Anantharamaiah, G. M.; Waskell, Lucy; Ramamoorthy, Ayyalusamy (2018). "Cytochromeâ P450â Induced Ordering of Microsomal Membranes Modulates Affinity for Drugs." Angewandte Chemie International Edition 57(13): 3391-3395. | |
dc.identifier.issn | 1433-7851 | |
dc.identifier.issn | 1521-3773 | |
dc.identifier.uri | https://hdl.handle.net/2027.42/142960 | |
dc.description.abstract | Although membrane environment is known to boost drug metabolism by mammalian cytochromeâ P450s, the factors that stabilize the structural folding and enhance protein function are unclear. In this study, we use peptideâ based lipid nanodiscs to â trapâ the lipid boundaries of microsomal cytochromeâ P450 2B4. We report the first evidence that CYP2B4 is able to induce the formation of raft domains in a biomimetic compound of the endoplasmic reticulum. NMR experiments were used to identify and quantitatively determine the lipids present in nanodiscs. A combination of biophysical experiments and molecular dynamics simulations revealed a sphingomyelin binding region in CYP2B4. The proteinâ induced lipid raft formation increased the thermal stability of P450 and dramatically altered ligand binding kinetics of the hydrophilic ligand BHT. These results unveil membrane/protein dynamics that contribute to the delicate mechanism of redox catalysis in lipid membrane.Redox catalysis in the lipid membrane: A novel application of peptide nanodiscs shows that cytochromeâ P450 2B4 is able to induce the formation of lipid raft domains in a biomimetic compound of the endoplasmic reticulum (ER). The proteinâ induced lipid rafts increase the thermal stability cytochromeâ P450 and dramatically alter the ligandâ binding kinetics of the hydrophilic ligand BHT. | |
dc.publisher | Springer | |
dc.publisher | Wiley Periodicals, Inc. | |
dc.subject.other | nanodiscs | |
dc.subject.other | lipids | |
dc.subject.other | biophysics | |
dc.subject.other | hemeproteins | |
dc.subject.other | membranes | |
dc.title | Cytochromeâ P450â Induced Ordering of Microsomal Membranes Modulates Affinity for Drugs | |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | |
dc.subject.hlbsecondlevel | Chemistry | |
dc.subject.hlbtoplevel | Science | |
dc.description.peerreviewed | Peer Reviewed | |
dc.description.bitstreamurl | https://deepblue.lib.umich.edu/bitstream/2027.42/142960/1/anie201713167.pdf | |
dc.description.bitstreamurl | https://deepblue.lib.umich.edu/bitstream/2027.42/142960/2/anie201713167_am.pdf | |
dc.description.bitstreamurl | https://deepblue.lib.umich.edu/bitstream/2027.42/142960/3/anie201713167-sup-0001-misc_information.pdf | |
dc.identifier.doi | 10.1002/anie.201713167 | |
dc.identifier.source | Angewandte Chemie International Edition | |
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