Results 41 to 50 of about 899,728 (285)

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

On the eigenvalues and eigenvectors of nonsymmetric saddle point matrices preconditioned by block triangular matrices [PDF]

, 2013
Block lower triangular and block upper triangular matrices are popular preconditioners for nonsymmetric saddle point matrices. In this note we show that a block lower triangular preconditioner gives the same spectrum as a block upper triangular ...
Pestana, J.
core   +1 more source

Photonic-crystal slabs with a triangular lattice of triangular holes investigated using a guided-mode expansion method

, 2006
According to a recent proposal [S. Takayama et al., Appl. Phys. Lett. 87, 061107 (2005)], the triangular lattice of triangular air holes may allow to achieve a complete photonic band gap in two-dimensional photonic crystal slabs.
A. Yariv, Dario Gerace, J. D. Joannopoulos, J.-M. Lourtioz, K. Inoue, K. Sakoda, Lucio Claudio Andreani, M. Galli, P. St. J. Russell, S. G. Johnson   +9 more
core   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

FEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

Triangular fuzzy quadripartitioned neutrosophic set and its properties [PDF]

Neutrosophic Sets and Systems
The main objective of the paper is to hybridize the triangular fuzzy number and the quadripartitioned neutrosophic set and develop the triangular fuzzy quadripartitioned neutrosophic set.
Tanmoy Chatterjee, Surapati Pramanik
doaj   +1 more source

The Effect of Combination of Footing and Triangular Weirs on Bed Topography in a 90º Mild Bend [PDF]

علوم و مهندسی آبیاری, 2015
Triangular weirs (Triangular vanes) and footing are measures which causes to control the scour in outer bend and keep out scouring hole from the outer bend.
Mohammad Bahrami Yarahmadi, Mahmood Shafai Bejestan, Seyed Habib Mousavi Jahromi   +2 more
doaj   +1 more source

Invariants of Triangular Lie Algebras

, 2007
Triangular Lie algebras are the Lie algebras which can be faithfully represented by triangular matrices of any finite size over the real/complex number field.
Ancochea J M, Barannyk L F Fushchych W I, Boyko V, Boyko V, Campoamor-Stursberg R, Campoamor-Stursberg R, Jiri Patera, Kaneta H, Kaneta H, Ndogmo J C, Ndogmo J C, Ndogmo J C, Olver P J, Roman Popovych, Rubin J L, Snobl L, Tremblay S, Tremblay S, Vyacheslav Boyko   +18 more
core   +1 more source

On triangular similarity of nilpotent triangular matrices [PDF]

Linear Algebra and its Applications, 2020
Let $B_n$ (resp. $U_n$, $N_n$) be the set of $n\times n$ nonsingular (resp. unit, nilpotent) upper triangular matrices. We use a novel approach to explore the $B_n$-similarity orbits in $N_n$. The Belitski\u 's canonical form of $A\in N_n$ under $B_n$-similarity is in $QU_n$ where $Q$ is the subpermutation such that $A\in B_n QB_n$.
Ming-Cheng Tsai, Meaza Bogale, Huajun Huang   +2 more
openaire   +3 more sources

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Error Analysis of Higher Order Bivariate Lagrange and Triangular Interpolations in Electromagnetics

IEEE Open Journal of Antennas and Propagation, 2020
The interpolation errors of the higher order bivariate Lagrange polynomial interpolation based on the rectangular, right and equilateral triangular interpolations are measured by using the maximum and root-mean-square (RMS) errors.
Wen Luo, Jinbo Liu, Zengrui Li, Jiming Song   +3 more
doaj   +1 more source