Results 91 to 100 of about 5,890,937 (282)

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

WHICH LINEAR-FRACTIONAL COMPOSITION OPERATORS ARE ESSENTIALLY NORMAL?

, 2002
We characterize the essentially normal composition operators induced on the Hardy space H2 by linear-fractional maps; they are either compact, normal, or (the nontrivial case) induced by parabolic nonautomorphisms.
Sivaram K. Narayan, David Levi, Paul S. Bourdon, Joel H. Shapiro   +3 more
core  

Some Inequalities for Commutators of Bounded Linear Operators in Hilbert Spaces [PDF]

, 2008
Some new inequalities for commutators that complement and in some instances improve recent results obtained by F. Kittaneh in 'Inequalities for commutators of positive operators' (2007) and 'Norm inequalities for commutators of Hilbert space operators ...
Dragomir, Sever S
core   +3 more sources

RNA‐related functions of BRCA2 in transcription, replication, and genome stability

FEBS Letters, EarlyView.
Beyond its role in homologous recombination, BRCA2 regulates R‐loop homeostasis, DNA–RNA hybrid resolution, RNA polymerase II dynamics, and transcriptional activation. Disruption of any of these functions can contribute to genome instability, inflammatory signaling, and tumorigenesis. BRCA2 is a central tumor suppressor protein best known for its roles
Lucia Alvaro‐Aranda, Sreerama Chaitanya Sridhara, Aura Carreira   +2 more
wiley   +1 more source

Recurrent Linear Operators

, 2013
Costakis G, Manoussos A, Parissis I. Recurrent Linear Operators. Complex Analysis and Operator Theory. 2014;8(8):1601-1643.We study the notion of recurrence and some of its variations for linearoperators acting on Banach spaces.
Parissis, Ioannis, George Costakis, Manoussos, Antonios, Ioannis Parissis, Costakis, George, Antonios Manoussos   +5 more
core   +1 more source

On a Schrödinger Equation in the Complex Space Variable

AppliedMath
We study a separable Hilbert space of smooth curves taking values in the Segal–Bergmann space of analytic functions in the complex plane, and two of its subspaces that are the domains of unbounded non self-adjoint linear partial differential operators of
Manuel L. Esquível, Nadezhda P. Krasii, Philippe L. Didier   +2 more
doaj   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

The Interpolative Ideal of Bloch Mappings

Journal of Function Spaces
Inspired by the interpolative ideal procedure for linear operators due to Matter, the concept of interpolative ideals of a Banach normalized Bloch ideal IB∧ is introduced.
D. Achour, M. G. Cabrera-Padilla, A. Jiménez-Vargas   +2 more
doaj   +1 more source

Monotonicity and Composition Analyses for Fractional Differences Involving Generalized Mittag-Leffler Kernels

Axioms
This study establishes a rigorous monotonicity and composition analysis for fractional difference operators defined via the generalized Mittag-Leffler kernel.
Mera Arab, Alina Alb Lupas, Christopher S. Goodrich, Pshtiwan Othman Mohammed   +3 more
doaj   +1 more source

A Berezin-type map and a class of weighted composition operators

Concrete Operators, 2017
In this paper we consider the map L defined on the Bergman space La2(𝔺+)$L_a^2({{\rm\mathbb{C}}_{\rm{ + }}})$ of the right half plane ℂ+ by (Lf)(w)=πM′(w)∫𝔺+(fM′)(s)|bw(s)|2dA˜(s)$(Lf)(w) = \pi M'(w)\int\limits_{{{\rm\mathbb{C}}_{\rm{ + }}}} {\left( {{f \
Das Namita
doaj   +1 more source