Results 91 to 100 of about 1,094,944 (319)

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Spectroscopy of Supernova Remnants and Candidates in M31

The Astrophysical Journal
With a star formation rate of order 0.4 M _⊙ yr ^−1 , M31 should have a significant population of supernova remnants (SNRs) and, in fact, 156 SNRs and SNR candidates have been suggested by J. H. Lee & M. G.
Nelson Caldwell, John C. Raymond, Knox S. Long, Myung Gyoon Lee   +3 more
doaj   +1 more source

Far Outer Galaxy H II Regions

The Astrophysical Journal, 1996
We have made a multifrequency (6, 3.6, and 2 cm), high-resolution (3"-6"), radio continuum survey of IRAS selected sources from the catalogue of Wouterloot & Brand (1989) to search for and study H II regions in the far outer Galaxy. We identified 31 sources in this catalog with well determined galactocentric distances, and with R approx..
Alexander L. Rudolph, Jan Brand, Eugene J. de Geus, Jan G. A. Wouterloot   +3 more
openaire   +1 more source

New giant H ii regions in the southern sky [PDF]

, 2005
V. Firpo, G. Bosch, N. Morrell
openalex   +1 more source

Momentum feedback from marginally resolved H iiregions in isolated disc galaxies [PDF]

, 2021
Sarah Jeffreson, Mark R. Krumholz, Yusuke Fujimoto, Lucia Armillotta, Ben Keller, Mélanie Chevance, J. M. Diederik Kruijssen   +6 more
openalex   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Characterizing Stellar and Gas Properties in NGC 628: Spatial Distributions, Radial Gradients, and Resolved Scaling Relations

The Astrophysical Journal
Building on our previous research involving multiwavelength data from UV to IR, we employ spectroscopic observations of ionized gas, as well as neutral hydrogen gas obtained from the Five-hundred Meter Aperture Spherical Telescope (FAST), to explore the ...
Peng Wei, Hu Zou, Jing Wang, Xu Kong, Shuguo Ma, Ruilei Zhou, Xu Zhou, Ali Esamdin, Jiantao Sun, Tuhong Zhong, Fei Dang   +10 more
doaj   +1 more source

OH masers associated with compact H II regions in the G45.1+0.1 complex [PDF]

, 1985
E. E. Baart, R. J. Cohen
openalex   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

NGC 628 in SIGNALS: Explaining the Abundance-ionization Correlation in H ii Regions

The Astrophysical Journal
The variations of oxygen abundance and ionization parameter in H ii regions are usually thought to be the dominant factors that produced variations seen in observed emission-line spectra. However, if and how these two quantities are physically related is
Ray Garner III, Robert Kennicutt Jr., Laurie Rousseau-Nepton, Grace M. Olivier, David Fernández-Arenas, Carmelle Robert, René Pierre Martin, Philippe Amram   +7 more
doaj   +1 more source