Results 161 to 170 of about 22,652,530 (299)

Population Status of a Regionally Endangered Plant, Lunaria rediviva (Brassicaceae), near the Eastern Border of Its Range. [PDF]

Biology (Basel), 2023
Khapugin AA, Chugunov GG.
europepmc   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS 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, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS 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, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Population status, distribution and trophic implications of Pinna nobilis along the South-eastern Italian coast. [PDF]

NPJ Biodivers, 2022
Pensa D, Fianchini A, Grosso L, Ventura D, Cataudella S, Scardi M, Rakaj A.   +6 more
europepmc   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Accounting for transgenerational effects of toxicant exposure in population models alters the predicted long-term population status. [PDF]

Environ Epigenet, 2022
Brander SM, White JW, DeCourten BM, Major K, Hutton SJ, Connon RE, Mehinto A.   +6 more
europepmc   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Alternative method for assessment of southwestern Atlantic humpback whale population status. [PDF]

PLoS One, 2021
Bortolotto GA, Thomas L, Hammond P, Zerbini AN.   +3 more
europepmc   +1 more source

The ubiquitin system in normal and infected germinal center B cells

FEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis, Lesly Mejia, Emily K Moser   +2 more
wiley   +1 more source

Population Status of Iodine and Its Potential Effects on Thyroid Function and Autoimmunity in Southwestern Colombia. [PDF]

J Clin Med Res, 2022
Vargas-Uricoechea H, Mera-Mamian A, Bastidas-Sanchez B, Pinzon-Fernandez M, Murillo-Palacios J, Ramirez-Bejarano L.   +5 more
europepmc   +1 more source