Results 111 to 120 of about 3,105,218 (296)

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

APPROXIMATION ON AN INTUITIONISTIC FUZZY NEAR-RINGS

open access: yesJournal of New Theory, 2017
Abstaract−This paper proposes the notion of a rough near-ring with respect to an ideal of an intuitionistic fuzzy near-ring.
Jude Immaculate, - Arockiarani
doaj  

On union of regular near-rings

open access: yesAsian-European Journal of Mathematics
‘A semigroup is completely regular if and only if it is a union of groups’ — an analogue of this structure theorem has been obtained in the setting of seminearrings [see cf. R. Mukherjee, T. Manna and P. Pal, A note on additively completely regular seminearrings, Semigroup Forum 100(1) (2020) 339–347].
Rajlaxmi Mukherjee   +3 more
openaire   +2 more sources

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

On the Structure of Near-Rings via P-Semiderivations

open access: yesJournal of Mathematics
This paper introduces the concept of a P-semiderivation on a near-ring N, which serves as a generalization of the classical notion of a semiderivation.
Ali Yahya Hummdi   +3 more
doaj   +1 more source

Near-rings and near-ring modules [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1971
openaire   +1 more source

Prime near-ring modules and their links with the generalised group near-ring [PDF]

open access: yes, 2007
In view of the facts that the definition of a ring led to the definition of a near- ring, the definition of a ring module led to the definition of a near-ring module, prime rings resulted in investigations with respect to primeness in near-rings, one is ...
Juglal, Shaanraj
core  

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

COMMUTATIVITY AND DECOMPOSITION FOR NEAR RINGS

open access: yesTamkang Journal of Mathematics, 1997
Let $R$ be a distributively generated (d.g) near ring satisfy one of the following condit ions. (*) For each $x$, $y$ in $R$, there exists a positive integer $n =n(x,y)$ such that $xy =(yx)^n$.(**) For each $x$, $y$ in $R$, there exist positive integers $m = m(x,y)$ and $n = n(x,y)$ for which $xy = y^m x^n$.
openaire   +3 more sources

Fundamental properties of near-rings [PDF]

open access: yes, 1973
The basic properties of near-rings are examined, and are then used to develop several fundamental theorems, among which are the Factor Theorem, the Isomorphism Theorems, the Correspondence Theorem, and theorems concerning near-ring embeddings.
Shelton, Anelia Sue   +1 more
core  

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