Results 61 to 70 of about 3,693,345 (304)

Characterization of the Lactococcus lactis Nisin A Operon Genes nisP, Encoding a Subtilisin-Like Serine Protease Involved in Precursor Processing, and nisR, Encoding a Regulatory Protein Involved in Nisin Biosynthesis [PDF]

open access: yes, 1993
Biosynthesis of the lantibiotic peptide nisin by Lactococcus lactis NIZO R5 relies on the presence of the conjugative transposon Tn5276 in the chromosome. A 12-kb DNA fragment of Tn5276 including the nisA gene and about 10 kb of downstream DNA was cloned
Beerthuyzen, Marke M.   +10 more
core  

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Interference of Arabidopsis N-Acetylglucosamine-1-P Uridylyltransferase Expression Impairs Protein N-Glycosylation and Induces ABA-Mediated Salt Sensitivity During Seed Germination and Early Seedling Development

open access: yesFrontiers in Plant Science, 2022
N-acetylglucosamine (GlcNAc) is the fundamental amino sugar moiety that is essential for protein glycosylation. UDP-GlcNAc, an active form of GlcNAc, is synthesized through the hexosamine biosynthetic pathway (HBP).
Ya-Huei Chen   +6 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

The protein tyrosine kinases EpsB and PtkA differentially affect biofilm formation in Bacillus subtilis [PDF]

open access: yes, 2014
The Gram-positive soil bacterium Bacillus subtilis is able to choose between motile and sessile lifestyles. The sessile way of life, also referred to as biofilm, depends on the formation of an extracellular polysaccharide matrix and some extracellular ...
Stanley-Wall, Nicola   +6 more
core   +1 more source

PyrH and PrnB crystal structures [PDF]

open access: yes, 2006
Determination of the three-dimensional structure of enzymes at atomic resolution is a key prerequisite for elucidation of molecular mechanisms of catalysis and catalysis mechanism prediction.
De Laurentis, Walter
core   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

CHAPTER 1.1. Disulfide Bonds in Protein Folding and Stability [PDF]

open access: yes, 2018
Disulfide bonds are unique among post-translational modifications, as they add covalent crosslinks to the polypeptide chain. Accordingly, they can exert pronounced effects on protein folding and stability. This is of particular importance for secreted or
Sub Cellular Protein Chemistry   +7 more
core   +1 more source

STAGES OF PROTEIN BIOSYNTHESIS [PDF]

open access: yes, 2023
The cells are continuously undergoing metabolic processes — the processes of synthesis and decomposition of substances. Each cell synthesizes the substances it needs. This process is called biosynthesis.
Zukhurova Malika
core   +1 more source

A translation proofreader of archaeal origin imparts multi-aldehyde stress tolerance to land plants

open access: yeseLife
Aldehydes, being an integral part of carbon metabolism, energy generation, and signalling pathways, are ingrained in plant physiology. Land plants have developed intricate metabolic pathways which involve production of reactive aldehydes and its ...
Pradeep Kumar   +11 more
doaj   +1 more source

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