[NMR paper] Tracking protein-protein interactions by NMR: conformational selection in human steroidogenic cytochrome P450 CYP17A1 induced by cytochrome b(5)
The human steroidogenic cytochrome P450 CYP17A1 catalyzes two types of reactions in the biosynthetic pathway leading from pregnenolone to testosterone and several other steroid hormones. The first is the hydroxylation of pregnenolone or progesterone to the corresponding 17?-hydroxy steroid, followed by a lyase reaction that converts these 17?-hydroxy intermediates to the androgens dehydroepiandrosterone and androstenedione, respectively. cytochrome b(5) (cytb(5)) is known to act as both an...
[NMR paper] Interactions of human mitochondrial Ferredoxin 1 (Adrenodoxin) by NMR; modulation by cytochrome P450 substrate and by truncation of the C-terminal tail
Interactions of human mitochondrial Ferredoxin 1 (Adrenodoxin) by NMR; modulation by cytochrome P450 substrate and by truncation of the C-terminal tail
Human Ferredoxin 1, also referred to as Adrenodoxin (Adx), is the sole electron carrier supporting the function of all seven mitochondrial cytochrome P450 (CYP) enzymes. Adx utilizes conserved negatively charged residues along its ?-helix3 to interact with either the proximal surface of CYP enzymes or the binding surface of Adrendodoxin Reductase (AdR). However, in the oxidized state, Adx assumes a monomer-homodimer equilibrium that...
[NMR paper] Effects of Membrane Mimetics on Cytochrome P450-Cytochrome b5 Interactions Characterized by NMR Spectroscopy.
Effects of Membrane Mimetics on Cytochrome P450-Cytochrome b5 Interactions Characterized by NMR Spectroscopy.
Effects of Membrane Mimetics on Cytochrome P450-Cytochrome b5 Interactions Characterized by NMR Spectroscopy.
J Biol Chem. 2015 Mar 20;
Authors: Zhang M, Huang R, Im SC, Waskell L, Ramamoorthy A
Abstract
Mammalian cytochrome P450 (P450) is a membrane-bound monooxygenase whose catalytic activities require two electrons to be sequentially delivered from its redox partners: cytochrome b5 (cytb5) and cytochrome P450...
nmrlearner
Journal club
0
03-22-2015 06:36 PM
[NMR paper] Insights into the Role of Substrates on the Interaction between Cytochrome b5 and Cytochrome P450 2B4 by NMR.
Insights into the Role of Substrates on the Interaction between Cytochrome b5 and Cytochrome P450 2B4 by NMR.
Related Articles Insights into the Role of Substrates on the Interaction between Cytochrome b5 and Cytochrome P450 2B4 by NMR.
Sci Rep. 2015;5:8392
Authors: Zhang M, Le Clair SV, Huang R, Ahuja S, Im SC, Waskell L, Ramamoorthy A
Abstract
Mammalian cytochrome b5 (cyt b5) is a membrane-bound protein capable of donating an electron to cytochrome P450 (P450) in the P450 catalytic cycle. The interaction between cyt b5 and...
nmrlearner
Journal club
0
02-18-2015 06:15 PM
[NMR paper] Dynamic Interaction Between Membrane-Bound Full-Length Cytochrome P450 and Cytochrome b5 Observed by Solid-State NMR Spectroscopy.
Dynamic Interaction Between Membrane-Bound Full-Length Cytochrome P450 and Cytochrome b5 Observed by Solid-State NMR Spectroscopy.
Dynamic Interaction Between Membrane-Bound Full-Length Cytochrome P450 and Cytochrome b5 Observed by Solid-State NMR Spectroscopy.
Sci Rep. 2013 Aug 29;3:2538
Authors: Yamamoto K, Dürr UH, Xu J, Im SC, Waskell L, Ramamoorthy A
Abstract
Microsomal monoxygenase enzymes of the cytochrome-P450 family are found in all biological kingdoms, and play a central role in the breakdown of metabolic as well as...
nmrlearner
Journal club
0
08-30-2013 04:35 PM
[NMR paper] A model of the membrane-bound cytochrome b5-cytochrome p450 complex from NMR and mutagenesis data.
A model of the membrane-bound cytochrome b5-cytochrome p450 complex from NMR and mutagenesis data.
A model of the membrane-bound cytochrome b5-cytochrome p450 complex from NMR and mutagenesis data.
J Biol Chem. 2013 May 24;
Authors: Ahuja S, Jahr N, Im SC, Vivekanandan S, Popovych N, Le Clair SV, Huang R, Soong R, Xu J, Yamamoto K, Nanga RP, Bridges A, Waskell L, Ramamoorthy A
Abstract
Microsomal cytochrome b5 (cytb5) is a membrane-bound protein that modulates the catalytic activity of its redox partner, cytochrome P4502B4 (cytP450)....
nmrlearner
Journal club
0
05-28-2013 06:36 PM
[NMR paper] Substrate-Modulated Cytochrome P450 17A1 and Cytochrome b5 Interactions Revealed by NMR.
Substrate-Modulated Cytochrome P450 17A1 and Cytochrome b5 Interactions Revealed by NMR.
Related Articles Substrate-Modulated Cytochrome P450 17A1 and Cytochrome b5 Interactions Revealed by NMR.
J Biol Chem. 2013 Apr 25;
Authors: Estrada DF, Laurence JS, Scott EE
Abstract
The membrane heme protein cytochrome b5 (b5) can enhance, inhibit, or have no effect on cytochrome P450 (P450) catalysis, depending on the specific P450, substrate, and reaction conditions, but the structural basis remains unclear. Herein the interactions between the...