Results 91 to 100 of about 1,131,860 (291)

Avidin is evolutionarily conserved in fish but dispensable for development and resistance against Streptococcus agalactiae in zebrafish

open access: yesFEBS Open Bio, EarlyView.
The presence of biotin‐binding avidin proteins in fish and their biological significance are poorly characterized. We cataloged fish avidins and demonstrate that they are widely present and evolutionarily conserved. We created avd knockout zebrafish and show that zebavidin is dispensable for development and that resistance of avd knockout embryos in ...
Anni K. Saralahti   +5 more
wiley   +1 more source

Vinyl thianthrenium-mediated cysteine bioconjugation

open access: yesCommunications Chemistry
Covalent cysteine labeling is an important tool in protein modification, however, current methodologies suffer from limited reactivities and require the prior synthesis of individual derivative reagents.
Huijuan Guo
doaj   +1 more source

Salmonella enterica serovar typhi limits the potency of typhoid toxin and ADP‐ribosylating toxin AB to establish a persistent infection

open access: yesFEBS Open Bio, EarlyView.
The two catalytic subunits of typhoid toxin dissociate from the holotoxin in the ER of an intoxicated cell, but only CdtB exits the ER to generate immunosuppressive effects. PltA is retained in the ER and sequestered from its cytosolic target, thus allowing the anti‐inflammatory effects of CdtB to promote intestinal colonization.
Maria C. Zabala‐Rodriguez   +4 more
wiley   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

open access: yesFEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan   +2 more
wiley   +1 more source

Stability of Differently Modified Lutein Nanostructured Lipid Carriers During Colonic Digestion and Their Interaction with Feces Microbiota

open access: yesShipin gongye ke-ji
To prepare different types of lutein nanostructured lipid carriers (LNLs) using chitosan (CS), chitosan-epigallocatechin gallate covalent (C-CS-EGCG), and chitosan-epigallocatechin gallate ester non-covalent (Non-C-CS-EGCG) modifications combined with ...
Xiaoqin WANG   +5 more
doaj   +1 more source

Covalent Modification of Bacteriophage T4 DNA Inhibits CRISPR-Cas9

open access: yesmBio, 2015
The genomic DNAs of tailed bacteriophages are commonly modified by the attachment of chemical groups. Some forms of DNA modification are known to protect phage DNA from cleavage by restriction enzymes, but others are of unknown function.
Alexandra L. Bryson   +7 more
doaj   +1 more source

The C‐terminal domain of yeast Arginyltransferase1 is essential for its catalytic activity

open access: yesFEBS Open Bio, EarlyView.
Arginyltransferase 1 (Ate1), a eukaryotic enzyme, catalyses arginylation, transferring arginine from tRNA‐Arg to the amino terminus of the target protein. Overexpression of Ate1 in yeast is lethal and is dependent on arginylation. This study elucidates how mutations in the cofactor‐binding and active site of Ate1 and truncation of its structural ...
Vikas Kumar Yadav   +4 more
wiley   +1 more source

Chemical modification of b-lactoglobulin by quinones [PDF]

open access: yesJournal of the Serbian Chemical Society, 2003
The avarone/avarol quinone/hydroquinone couple, as well as their derivatives show considerable antitumor activity. In this work, covalent modifications of b-lactoglobulin, isolated from cow milk, by avarone, its model compound 2-tert-butyl-1,4 ...
DUSAN SLADIC   +5 more
doaj  

Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1

open access: yesFEBS Open Bio, EarlyView.
The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn   +2 more
wiley   +1 more source

Postsynthetic Covalent Modification of a Neutral Metal−Organic Framework

open access: yes, 2016
The covalent modification of the metal−organic framework IRMOF-3 has been achieved using acetic anhydride. Mass spectrometry and 1H NMR evidence shows that the free amine groups in IRMOF-3 are converted to amides in high yields. Control experiments and X-
Zhenqiang Wang (1459963)   +1 more
core   +2 more sources

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