Results 101 to 110 of about 9,527,915 (298)

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Kimmerle conjecture for the Held and O'Nan sporadic simple groups [PDF]

open access: yes, 2009
Using the Luthar--Passi method, we investigate the Zassenhaus and Kimmerle conjectures for normalized unit groups of integral group rings of the Held and O'Nan sporadic simple groups.
Bódi, Viktor   +2 more
core   +1 more source

Group association schemes and Schur rings

open access: yesLe Matematiche, 1992
See directly the article.
Udo Ott
doaj  

Rings all of whose additive group endomorphisms are left multiplications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
Motivated by Cauchy's functional equation f(x+y)=f(x)+f(y), we study in §1 special rings, namely, rings for which every endomorphism f of their additive group is of the form f(x)≡ax. In §2 we generalize to R algebras (R a fixed commutative ring) and give
Michael I. Rosen, Oved shisha
doaj   +1 more source

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

Second cohomology of Lie rings and the Schur multiplier [PDF]

open access: yesInternational Journal of Group Theory, 2014
We exhibit an explicit construction for the second cohomology group$H^2(L, A)$ for a Lie ring $L$ and a trivial $L$-module $A$.We show how the elements of $H^2(L, A)$ correspond one-to-one to theequivalence classes of central extensions of $L$ by $A ...
Max Horn, Seiran Zandi
doaj  

1,1′-Bis(1-acetyl-5-methyl-1H-pyrazol-3-yl)ferrocene

open access: yesActa Crystallographica Section E, 2011
The title compound, [Fe(C11H11N2O)2], crystallizes with two independent molecules in the asymmetric unit which have have different conformations. In one molecule, the two ferrocene cyclopentadienyl rings are fully eclipsed and the two pyrazole rings are ...
Bei-Bei Zhu   +3 more
doaj   +1 more source

Antea Group Archeologie 2020/72

open access: yes, 2020
Auteurs: R. Fens & I. Fleuren rapportvolgnummer: 2020/72 Antea Group projectnummer 271507 ARCHIS-nr 4856764100 Het plangebied ligt langs de voormalige Zuiderzeekust. De vestingstad Muiden, een van oorsprong middeleeuwse stad, bevindt zich aan de monding
Koopmanschap, H (Antea Group)   +16 more
core   +1 more source

Functional equations for zeta functions of groups and rings [PDF]

open access: yes, 2010
We introduce a new method to compute explicit formulae for various zeta functions associated to groups and rings. The specific form of these formulae enables us to deduce local functional equations. More precisely, we prove local functional equations for
Voll, C., Voll, Christopher
core   +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

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