Results 91 to 100 of about 16,736 (251)

Three serendipitous pathways in E. coli can bypass a block in pyridoxal‐5′‐phosphate synthesis

Molecular Systems Biology, 2010
Bacterial genomes encode hundreds to thousands of enzymes, most of which are specialized for particular functions. However, most enzymes have inefficient promiscuous activities, as well, that generally serve no purpose.
Juhan Kim, Jamie P Kershner, Yehor Novikov, Richard K Shoemaker, Shelley D Copley   +4 more
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

Heads or tails: making the spinal cord

, 2022
The central nervous system contains a vast array of cell types that are produced along the length of the rostrocaudal axis. This diversity in cell identity is established during embryonic development, and ensures that physiologically distinct cell types ...
Metzis, Vicki, Needham, Julia
core   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Single-cell mapping of lipid metabolites using an infrared probe in human-derived model systems

Nature Communications
Understanding metabolic heterogeneity is the key to uncovering the underlying mechanisms of metabolic-related diseases. Current metabolic imaging studies suffer from limitations including low resolution and specificity, and the model systems utilized ...
Yeran Bai, Carolina M. Camargo, Stella M. K. Glasauer, Raymond Gifford, Xinran Tian, Andrew P. Longhini, Kenneth S. Kosik   +6 more
doaj   +1 more source

Structure‐forward targeting of claudins with synthetic binders

FEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

Precision multiplexed base editing in human cells using Cas12a-derived base editors

Nature Communications
Base editors enable the direct conversion of target nucleotides without introducing DNA double strand breaks, making them a powerful tool for creating point mutations in a human genome. However, current Cas9-derived base editing technologies have limited
Anabel Y. Schweitzer, Etowah W. Adams, Michael T. A. Nguyen, Monkol Lek, Farren J. Isaacs   +4 more
doaj   +1 more source

Role of epigenetics in developmental biology and transgenerational inheritance [PDF]

, 2011
The molecular mechanisms involved in developmental biology and cellular differentiation have traditionally been considered to be primarily genetic. Environmental factors that influence early life critical windows of development generally do not have the ...
Michael K. Skinner, Skinner, Michael K
core   +1 more source

Nutrient/TOR signaling controls adipose mitochondrial transcription factor A (TFAM) to regulate organismal growth in Drosophila

FEBS Letters, EarlyView.
Animals must match their growth rate to available nutrients. We show that in Drosophila larvae, the nutrient‐sensing TOR kinase controls growth by regulating levels of TFAM, a key regulator of mitochondrial function, in the adipose tissue. When nutrients are abundant, high TOR activity suppresses TFAM, lowering mitochondrial bioenergetic activity and ...
Shrivani Sriskanthadevan‐Pirahas, Shahoon Khan, Abhishek Sharma, Byoungchun Lee, Savraj S. Grewal   +4 more
wiley   +1 more source

Echinoderms : Focus on the Sea Urchin Model in Cellular and Developmental Biology

, 2021
Echinoderms, a sister group of chordates, is a group of exclusively marine animals. TheEchinodermata is an ancient phylum dating to at least 450 million years old and includingmore than 10,000 extant species present throughout the world’s oceans. The modernechinoderms belong to five classes: Echinoidea (e.g., sea urchins and sand dollars),Asteroidea (e.
Pontheaux, Florian, Roch, Fernando, Morales, Julia, Cormier, Patrick   +3 more
openaire   +1 more source