Search Results - "Benabbas, Abdelkrim"

Investigations of heme distortion, low-frequency vibrational excitations, and electron transfer in cytochrome c by Sun, Yuhan, Benabbas, Abdelkrim, Zeng, Weiqiao, Kleingardner, Jesse G., Bren, Kara L., Champion, Paul M.

“…Cytochrome (cyt) c is an important electron transfer protein. The ruffling deformation of its heme cofactor has been suggested to relate to its electron…”
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Tunneling Kinetics and Nonadiabatic Proton-Coupled Electron Transfer in Proteins: The Effect of Electric Fields and Anharmonic Donor–Acceptor Interactions by Salna, Bridget, Benabbas, Abdelkrim, Russo, Douglas, Champion, Paul M

“…A proper description of proton donor–acceptor (D–A) distance fluctuations is crucial for understanding tunneling in proton-coupled electron transport (PCET)…”
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All‐Optical Helicity‐Dependent Switching in Hybrid Metal–Ferromagnet Thin Films by Cheng, Feng, Du, Zhidong, Wang, Xinjun, Cai, Ziqiang, Li, Lin, Wang, Chuangtang, Benabbas, Abdelkrim, Champion, Paul, Sun, Nianxiang, Pan, Liang, Liu, Yongmin

“…Over the past decades, optical manipulation of magnetization by ultrafast laser pulses has attracted extensive interest. It not only shows intriguing…”
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Deep proton tunneling in the electronically adiabatic and non-adiabatic limits: comparison of the quantum and classical treatment of donor-acceptor motion in a protein environment by Benabbas, Abdelkrim, Salna, Bridget, Sage, J Timothy, Champion, Paul M

“…Analytical models describing the temperature dependence of the deep tunneling rate, useful for proton, hydrogen, or hydride transfer in proteins, are developed…”
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Ultrafast Dynamics of Diatomic Ligand Binding to Nitrophorin 4 by Benabbas, Abdelkrim, Ye, Xiong, Kubo, Minoru, Zhang, Zhenyu, Maes, Estelle M, Montfort, William R, Champion, Paul M

“…Nitrophorin 4 (NP4) is a heme protein that stores and delivers nitric oxide (NO) through pH-sensitive conformational change. This protein uses the ferric state…”
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Low-Frequency Mode Activity of Heme: Femtosecond Coherence Spectroscopy of Iron Porphine Halides and Nitrophorin by Kubo, Minoru, Gruia, Flaviu, Benabbas, Abdelkrim, Barabanschikov, Alexander, Montfort, William R, Maes, Estelle M, Champion, Paul M

“…The low-frequency mode activity of metalloporphyrins has been studied for iron porphine-halides (Fe(P)(X), X = Cl, Br) and nitrophorin 4 (NP4) using…”
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Temperature-dependent heme kinetics with nonexponential binding and barrier relaxation in the absence of protein conformational substates by Ye, Xiong, Ionascu, Dan, Gruia, Florin, Yu, Anchi, Benabbas, Abdelkrim, Champion, Paul M

“…We present temperature-dependent kinetic measurements of ultrafast diatomic ligand binding to the "bare" protoheme (L₁-FePPIX-L₂, where L₁ = H₂O or 2-methyl…”
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Electrical unfolding of cytochrome c during translocation through a nanopore constriction by Tripathi, Prabhat, Benabbas, Abdelkrim, Mehrafrooz, Behzad, Yamazaki, Hirohito, Aksimentiev, Aleksei, Champion, Paul M., Wanunu, Meni

“…Many small proteins move across cellular compartments through narrow pores. In order to thread a protein through a constriction, free energy must be overcome…”
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Adiabatic Ligand Binding in Heme Proteins: Ultrafast Kinetics of Methionine Rebinding in Ferrous Cytochrome c by Benabbas, Abdelkrim, Champion, Paul M

“…The dynamics of methionine geminate recombination following photodissociation in ferrous cytochrome c is investigated over a broad temperature range. The…”
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Highly-Stable Bio-Inspired Peptide/MoS2 Membranes for Efficient Water Desalination by Sapkota, Bedanga, Pandey, Laxmi, Benabbas, Abdelkrim, Wanunu, Meni

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Peptide-Decorated Tunable-Fluorescence Graphene Quantum Dots by Sapkota, Bedanga, Benabbas, Abdelkrim, Lin, Hao-Yu Greg, Liang, Wentao, Champion, Paul, Wanunu, Meni

“…We report here the synthesis of graphene quantum dots with tunable size, surface chemistry, and fluorescence properties. In the size regime 15–35 nm, these…”
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Electrical Unfolding of Cytochrome C During Translocation through a Nanopore Constriction by Tripathi, Prabhat, Benabbas, Abdelkrim, Mehrafrooz, Behzad, Yamazaki, Hirohito, Aksimentiev, Aleksei, Champion, Paul M., Wanunu, Meni

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Proton-Coupled Electron Transfer and the “Linear Approximation” for Coupling to the Donor–Acceptor Distance Fluctuations by Salna, Bridget, Benabbas, Abdelkrim, Champion, Paul M

“…The often-used “linear approximation” for treating the coupling of proton donor–acceptor (D–A) distance fluctuations to proton-coupled electron transfer…”
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Oxygen-Induced In Situ Manipulation of the Interlayer Coupling and Exciton Recombination in Bi 2 Se 3 /MoS 2 2D Heterostructures by Hennighausen, Zachariah, Lane, Christopher, Benabbas, Abdelkrim, Mendez, Kevin, Eggenberger, Monika, Champion, Paul M, Robinson, Jeremy T, Bansil, Arun, Kar, Swastik

“…Two-dimensional (2D) heterostructures are more than a sum of the parent 2D materials, but are also a product of the interlayer coupling, which can induce new…”
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Single Protein Trapping on Ultrathin Asymmetric Solid-State Nanopores by Yamazaki, Hirohito, Li, Fanjun, Benabbas, Abdelkrim, Cressiot, Benjamin, Champion, Paul M., Chen, Min, Wanunu, Meni

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Oxygen-Induced In Situ Manipulation of the Interlayer Coupling and Exciton Recombination in Bi2Se3/MoS2 2D Heterostructures by Hennighausen, Zachariah, Lane, Christopher, Benabbas, Abdelkrim, Mendez, Kevin, Eggenberger, Monika, Champion, Paul M, Robinson, Jeremy T, Bansil, Arun, Kar, Swastik

“…Two-dimensional (2D) heterostructures are more than a sum of the parent 2D materials, but are also a product of the interlayer coupling, which can induce new…”
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Ultrafast CO Kinetics in Heme Proteins: Adiabatic Ligand Binding and Heavy Atom Tunneling by Benabbas, Abdelkrim, Sun, Yuhan, Poulos, Thomas L, Champion, Paul M

“…The ultrafast kinetics of CO rebinding to carbon monoxide oxidation activator protein (ChCooA) are measured over a wide temperature range and compared with the…”
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Wide-dynamic-range kinetic investigations of deep proton tunnelling in proteins by Salna, Bridget, Benabbas, Abdelkrim, Sage, J. Timothy, van Thor, Jasper, Champion, Paul M.

“…Directional proton transport along ‘wires’ that feed biochemical reactions in proteins is poorly understood. Amino-acid residues with high p K a are seldom…”
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Kinetic Control of O 2 Reactivity in H-NOX Domains by Sun, Yuhan, Benabbas, Abdelkrim, Zeng, Weiqiao, Muralidharan, Sandhya, Boon, Elizabeth M., Champion, Paul M.

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Investigations of the Low Frequency Modes of Ferric Cytochrome c Using Vibrational Coherence Spectroscopy by Karunakaran, Venugopal, Sun, Yuhan, Benabbas, Abdelkrim, Champion, Paul M

“…Femtosecond vibrational coherence spectroscopy is used to investigate the low frequency vibrational dynamics of the electron transfer heme protein, cytochrome…”
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