Results 11 to 20 of about 6,857 (224)

Structure of microcin C51, a new antibiotic with a broad spectrum of activity

open access: yesFEBS Letters, 1995
The structure of microcin C51, a new antibiotic produced by E. coli, has been determined. This antibiotic was shown to be a 1.18 kDa nucleotide peptide. It consists of a heptapeptide with formylmethionine as the N‐terminus and a C‐terminal asparagine linked with nebularin‐5′‐monophosphate through the three‐methylene bridge. The OH‐group of threonine is
Tsezi A Egorov, I A Khmel, G S Katrukha
exaly   +4 more sources

Synthesis of the C50 diastereomers of the C33–C51 fragment of stambomycin D

open access: yesOrganic Chemistry Frontiers, 2022
The preparation of two C50 diastereomers of the C33–C51 region of stambomycin D is described. In addition to excellent correlation with the natural product, this synthesis establishes conditions for eventual global deprotection.
Yongchen Wang   +2 more
exaly   +4 more sources

The Economic Influence on Consumers Buying Behavior in Islamic Countries: Evidence from the COVID-19 Economic Crisis

open access: yesECONOMICS, 2021
The Covid-19 pandemic has ushered in a new age in the world. We are still grappling with the implications in various areas of our everyday lives. The impulsive buying habits of consumers, the supply chain, and the whole industry are not exceptions ...
Mukit Mohammad Mushfiqul Haque   +3 more
doaj   +1 more source

BRCA1-A and BRISC: Multifunctional Molecular Machines for Ubiquitin Signaling

open access: yesBiomolecules, 2020
The K63-linkage specific deubiquitinase BRCC36 forms the core of two multi-subunit deubiquitination complexes: BRCA1-A and BRISC. BRCA1-A is recruited to DNA repair foci, edits ubiquitin signals on chromatin, and sequesters BRCA1 away from the site of ...
Julius Rabl
doaj   +1 more source

Multiple UAVs Path Planning Based on Deep Reinforcement Learning in Communication Denial Environment

open access: yesMathematics, 2023
In this paper, we propose a C51-Duel-IP (C51 Dueling DQN with Independent Policy) dynamic destination path-planning algorithm to solve the problem of autonomous navigation and avoidance of multiple Unmanned Aerial Vehicles (UAVs) in the communication ...
Yahao Xu   +4 more
doaj   +1 more source

Low complexity nano-networks routing scenarios and strategies [PDF]

open access: yes, 2021
© 2021 Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/One of the big challenges in nano-networks is the capacity to route packets using simple strategies, in ...
Almeida Amazonas, José Roberto de   +2 more
core   +1 more source

Intermolecular interactions in the chiral and racemic forms of 3-hydroxy-2-(1-oxoisoindolin-2-yl)butanoic acid derived from threonine [PDF]

open access: yes, 2000
The title compounds, C₁₂H₁₃NO₄, are derived from L-threonine and DL-threonine, respectively. Hydrogen bonding in the chiral derivative, (2S/3R)-3-hydroxy-2-(1-oxoisoindolin-2-yl)butanoic acid, consists of O-Hacid...Oalkyl-H...O=Cindole chains [O...O 2 ...
Gallagher, John F.   +2 more
core   +1 more source

The Influence of Dissimilarity of Comparables on the Correctness of Estimation in the Comparative Approach Procedure

open access: yesReal Estate Management and Valuation, 2021
The subject of this article is the still relevant issue of the adequate choice of comparables in evaluation procedures within the sales comparison approach.
Zyga Jacek
doaj   +1 more source

O-H...O, C-H...O and C-H...[pi]arene intermolecular interactions in (2S)-2-(1-oxo-1H-2,3-dihydroisoindol-2-yl)pentanoic acid and (2S)-3-methyl-2-(1-oxo-1H-2,3-dihydroisoindol-2-yl)butanoic acid [PDF]

open access: yes, 2000
In the first of the title compounds, (2S)-2-(1-oxo-1H-2,3-dihydroisoindol-2-yl)pentanoic acid, C₁₃H₁₅NO₃, prepared from L-norvaline, a hydrogen-bonded network is formed in the solid state through O-H...O=C, C-H...O=C and C-H...πarene intermolecular ...
Gallagher, John F., Brady, Fiona
core   +1 more source

Intermolecular hydrogen bonding in (2S)-2-(1-oxo-1H-2,3-dihydroisoindol-2-yl)propanoic acid [PDF]

open access: yes, 2001
The title compound, C11H11NO3, a condensation product of l- alanine and ortho-phthalaldehyde, crystallizes in space group P212121. Intermolecular OÐH O C and CÐH O hydrogen bonds are present with O O and C O distances of 2.623 (3) and 3.338 (4) A
Gallagher, John F., Brady, Carol
core   +1 more source

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