Results 91 to 100 of about 766,908 (329)

Current-Driven Conformational Changes, Charging and Negative Differential Resistance in Molecular Wires

, 2001
We introduce a theoretical approach based on scattering theory and total energy methods that treats transport non-linearities, conformational changes and charging effects in molecular wires in a unified way.
A. I. Yanson, C. P. Collier, D. Sánchez-Portal, E. Emberly, E. Emberly, E. G. Emberly, Eldon G. Emberly, George Kirczenow, H. Ness, H. Ohnishi, J. Chen, J. Gaudioso, J. K. Gimzewski, L. E. Hall, M. A. Reed, M. Di Ventra, N. D. Lang, S. Datta, S. N. Yaliraki, S. P. McGlynn, W. Kohn, W. P. Su   +21 more
core   +1 more source

Structural snapshots of Xer recombination reveal activation by synaptic complex remodeling and DNA bending [PDF]

, 2016
Bacterial Xer site-specific recombinases play an essential genome maintenance role by unlinking chromosome multimers, but their mechanism of action has remained structurally uncharacterized. Here, we present two high-resolution structures of Helicobacter
Adams, Afonine, Aihara, Arnold, Aussel, Barre, Barre, Biswas, Blakely, Blakely, Blakely, Britton, Carnoy, Chen, Cortez, Das, Debowski, Debowski, Diagne, Dong, Emsley, Ennifar, Fischer, Gopaul, Gopaul, Grainge, Grindley, Guo, Guo, Hendricks, Holliday, Jayaram, Jo, Kabsch, Karaca, Keller, Kelley, Kim, Krissinel, Kuempel, Le Bourgeois, Lee, Leroux, Li, Luscombe, May, McCoy, Midonet, Nagy, Nolivos, Nunes-Düby, Page, Pargellis, Pettersen, Pérals, Rother, Serre, Steiner, Subramanya, Terwilliger, Turan, Val, Van Duyne, Van Duyne, van Zundert, Vonrhein, Yang, Yang, Yates, Yates, Zawadzki, Zheng   +71 more
core   +4 more sources

A Cre‐dependent lentiviral vector for neuron subtype‐specific expression of large proteins

FEBS Letters, EarlyView.
We designed a versatile and modular lentivector comprising a Cre‐dependent switch and self‐cleaving 2A peptide and tested it for co‐expression of GFP and a 2.8 kb gene of interest (GOI) in mouse cortical parvalbumin (PV+) interneurons and midbrain dopamine (TH+) neurons.
Weixuan Xue, Sandrine Picaud, Régine Hepp, Stéphanie Pons, Uwe Maskos, Bertrand Lambolez, Ludovic Tricoire   +6 more
wiley   +1 more source

Molecular determinants of drug-specific sensitivity for epidermal growth factor receptor (EGFR) exon 19 and 20 mutants in non-small cell lung cancer. [PDF]

, 2015
We hypothesized that aberrations activating epidermal growth factor receptor (EGFR) via dimerization would be more sensitive to anti-dimerization agents (e.g., cetuximab).
Bazhenova, Lyudmila, Greenberg, Jerry P, Kouznetsova, Valentina L, Kurzrock, Razelle, Stewart, David J, Tsigelny, Igor F, Wheler, Jennifer J   +6 more
core   +3 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Activation of tyrosine kinases by mutation of the gatekeeper threonine. [PDF]

, 2008
Protein kinases targeted by small-molecule inhibitors develop resistance through mutation of the gatekeeper threonine residue of the active site. Here we show that the gatekeeper mutation in the cellular forms of c-ABL, c-SRC, platelet-derived growth ...
Azam, Mohammad, Daley, George, Gray, Nathanael, KURIYAN, John, Seeliger, Markus   +4 more
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source

Conformations and charge transport characteristics of biphenyldithiol self-assembled-monolayer molecular electronic devices: A multiscale computational study [PDF]

, 2005
We report a computational study of conformations and charge transport characteristics of biphenyldithiol (BPDT) monolayers in the (sqrt(3)×sqrt(3))R30° packing ratio sandwiched between Au(111) electrodes. From force-field molecular-dynamics and annealing
Goddard, William A., III, Jang, Seung Soon, Kim, Yong-Hoon   +2 more
core   +2 more sources

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Molecular Properties of Water-Unextractable Proteoglycans from Hypsizygus marmoreus and Their in Vitro Immunomodulatory Activities

Molecules, 2011
Four proteoglycans were sequentially extracted from Hypsizygus marmoreus using 0.1 M NaOH (alkali-soluble proteoglycans [F1] and alkali-insoluble proteoglycans [F3]) and 0.1 M HCl (acid-soluble proteoglycans [F2] and acid-insoluble proteoglycans [F4 ...
Hee Mun Chae, Hong Hui Bao, Mehdi Tarbasa, Sang Guan You   +3 more
doaj   +1 more source