Heterotropic regulation and negative homotropic cooperativity
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea +5 more
wiley +1 more source
Network topology creates independent control of multiple checkpoints in the cell cycle system. [PDF]
Yamauchi Y +4 more
europepmc +1 more source
Research is strongest when conducted alongside patients, not just about them. Patient research organizations help integrate patient perspectives into research priorities, study design, and scientific meetings, leading to meaningful patient outcomes and development of relevant therapies.
Jenica H. Kakadia +9 more
wiley +1 more source
Phytochemical Profiling and Antioxidant Potential of Ultrasonic-Assisted Methanolic Extracts from Different Organs of <i>Geranium glaberrimum</i>. [PDF]
Selvi B.
europepmc +1 more source
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
GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain +11 more
wiley +1 more source
Improved Antioxidant Properties of <i>Pistacia lentiscus</i> L. Oleo-gum Resin Essential Oil Extracted by Superheated Steam: Process Optimization and Chemical Characterization. [PDF]
Ayub MA +8 more
europepmc +1 more source
Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer +7 more
wiley +1 more source
This work presents the complete Theory of Spiral Electronegativity - a fundamental explanation of chemical element activity through spiral-toroidal atomic dynamics and the PCI parameter. Key contributions: • First fundamental derivation of electronegativity from first principles• Mathematical model based on toroidal rotation frequencies and PCI ...
openaire +2 more sources
Plasma Functionalization of Carbon-Based Materials for Electrocatalytic Applications. [PDF]
Wieczorek J +2 more
europepmc +1 more source

