Results 51 to 60 of about 786,832 (288)

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

open access: yesFEBS 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   +6 more
wiley   +1 more source

Identities involving elementary symmetric functions

open access: yes, 2000
A systematic procedure for generating certain identities involving elementary symmetric functions is proposed.
Gupta, V., Chaturvedi, S.
core   +1 more source

A note on q-analogue of Hermite-poly-Bernoulli numbers and polynomials [PDF]

open access: yesMathematica Moravica, 2019
In this paper, we introduce the Hermite-based poly-Bernoulli numbers and polynomials with q-parameter and give some of their basic properties including not only addition property, but also derivative properties and integral representations.
Khan Waseem A.   +2 more
doaj  

A new symmetrical combinatorial ldentity

open access: yesJournal of Combinatorial Theory, Series A, 1972
AbstractA proof is given for the novel identity [x+aa][y+bb]=∑k=0m[x+y+kk][x+a−ba−k][y+b−ab−k]q(a−k)(b−k) due to Richard Stanley, where m = min(a, b), and brackets denote q-binomial coefficients defined by [xn] = Φj=1nqx−j+1−1qj−1, [x0] = 1The identity is valid for all real or complex x, y and non-negative integers a, b.
openaire   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Degenerate Lah–Bell polynomials arising from degenerate Sheffer sequences

open access: yesAdvances in Difference Equations, 2020
Umbral calculus is one of the important methods for obtaining the symmetric identities for the degenerate version of special numbers and polynomials. Recently, Kim–Kim (J. Math. Anal. Appl.
Hye Kyung Kim
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

On Weakly Symmetric and Weakly Conformally Symmetric Spaces Admitting Veblen Identities [PDF]

open access: yes, 2011
In the present paper some properties involving curvature tensor,conformal curvature tensor, Ricci tensor and scalar curvature, on weakly symmetric, weakly conformally symmetric and pseudo symmetric spaces are ...
Hari Baskar, R.   +4 more
core   +1 more source

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

open access: yesFEBS 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   +5 more
wiley   +1 more source

A Study of Generalized Laguerre Poly-Genocchi Polynomials

open access: yesMathematics, 2019
A variety of polynomials, their extensions, and variants, have been extensively investigated, mainly due to their potential applications in diverse research areas.
Nabiullah Khan   +2 more
doaj   +1 more source

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