Results 51 to 60 of about 16,066,439 (292)

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

Generation and manipulation of laser beams carrying orbital angular momentum for classical and quantum information applications [PDF]

, 2009
Light orbital angular momentum (OAM) has been recognized as a new promising resource for classical and quantum information applications. In contrast to the spin angular momentum, the OAM is an inherently multidimensional.
Karimi, Ebrahim
core   +1 more source

Unreported ICCD Speckle Interferometry Measures of Double Stars

The Astronomical Journal
We report here on 1057 speckle interferometric double star measures obtained between 1997 and 2018 by the Center for High Angular Resolution Astronomy group at Georgia State University and the Double Star Group at the U.S. Naval Observatory.
Brian D. Mason, William I. Hartkopf
doaj   +1 more source

Phase-Induced Amplitude Apodization Complex Mask Coronagraph (PIAACMC) on-sky demonstration with MagAO-X★

Astronomy & Astrophysics
Advancing the technological development of small inner working angle (IWA) coronagraphs is essential to enabling high-contrast imaging of temperate exoplanets with future extremely large telescopes (ELTs).
Tonucci E., Haffert S. Y., Foster W. B., Males J. R., Guyon O., Close L. M., Van Gorkom K., Hedglen A. D., Johnson P. T., Kautz M. Y., Kueny J. K., Li J., Liberman J., Long J. D., Lumbres J., Mars M., McEwen E. A., McLeod A., Pearce L. A., Schatz L., Twitchell K.   +20 more
doaj   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

FEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass, Dana Reichmann, Gábor Erdős   +2 more
wiley   +1 more source

The VLT/ERIS grating vector Apodizing Phase Plate coronagraph

Astronomy & Astrophysics
Aims. We describe the design, laboratory manufacture, and on-sky testing of the grating vector apodizing phase plate (gvAPP) coronagraph for the Enhanced Resolution Imager and Spectrograph (ERIS) on the Very Large Telescope. Methods.
Kenworthy M. A., Dannert F. A., Hayoz J., Doelman D., Sutlieff B. J., Liu P., Snik F., Bonse M. J., Quanz S. P., Keller C. U., Absil O., de Xivry G. Orban, De Rosa R. J., Ginski C., Chen X., Zurlo A., Biller B. A., Birkby J. L., Baruffolo A., Dalliliar Y., Davies R., Dolci M., Feuchtgruber H., Glauser A., Grani P., Kravchenko K., MacIntosh M., Puglisi A., Rau C., Riccardi A., Sturm E., Taylor W.   +31 more
doaj   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

Staggered-SAR for High-Resolution Wide-Swath Imaging [PDF]

, 2012
Synthetic aperture radar (SAR) is a remote sensing technique, capable of providing high resolution images independent of weather conditions and sunlight illumination.
Villano, Michelangelo, M. Villano, Moreira, Alberto, A. Moreira, G. Krieger, Krieger, Gerhard   +5 more
core   +1 more source

A Spectroscopic and Interferometric Study of W Serpentis Stars. I. Circumbinary Outflow in the Interacting Binary W Serpentis

The Astrophysical Journal
W Serpentis is an eclipsing binary system and the prototype of the Serpentid class of variable stars. These are interacting binaries experiencing intense mass transfer and mass loss.
Katherine Shepard, Douglas R. Gies, Gail H. Schaefer, Narsireddy Anugu, Fabien R. Baron, Cyprien Lanthermann, John D. Monnier, Stefan Kraus, Theo ten Brummelaar   +8 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source