Results 61 to 70 of about 122,975 (297)

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Analysis of Monomer Release from Different Composite Resins after Bleaching by HPLC

Life, 2022
(1) Background: This study aimed to examine the effect of bleaching agents on the release of triethylenae glycol dimethacrylate, 2-hydroxyethyl methacrylate, bisphenol A, urethane dimethacrylate, and bisphenol A-glycidyl methacrylate monomers, which are ...
Mehmet Gökberkkaan Demirel, Hakan Yasin Gönder, Makbule Tuğba Tunçdemir   +2 more
doaj   +1 more source

Residual entropy in a model for the unfolding of single polymer chains

, 2007
We study the unfolding of a single polymer chain due to an external force. We use a simplified model which allows to perform all calculations in closed form without assuming a Boltzmann-Gibbs form for the equilibrium distribution.
Ahsan A., Baumann C. G., E. Van der Straeten, Halperin A., J. Naudts, Szymczak P., Van der Straeten E., Van der Straeten E.   +7 more
core   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Influence of plaster drying on the amount of residual monomer in heat-cured acrylic resins

Brazilian Journal of Oral Sciences, 2015
Aim: To evaluate the influence of plaster condition, dry or not, on the amount of residual monomer in heat-cured acrylic resin. Methods: Thirty acrylic resin specimens (65x10x3 mm) were fabricated and randomly assigned to 5 groups (n=6).
Tarcisio José de Arruda Paes-Junior, Rodrigo Furtado de Carvalho, Sâmia Carolina Mota Cavalcanti, Guilherme de Siqueira Ferreira Anzaloni Saavedra, Alexandre Luiz Souto Borges   +4 more
doaj   +1 more source

Structure of 3,4-Dihydroxy-2-butanone 4-Phosphate Synthase from Methanococcus jannaschii in Complex with Divalent Metal Ions and the Substrate Ribulose 5-Phosphate: implications for the catalytic mechanism [PDF]

, 2003
Skeletal rearrangements of carbohydrates are crucial for many biosynthetic pathways. In riboflavin biosynthesis ribulose 5-phosphate is converted into 3,4-dihydroxy-2-butanone 4-phosphate while its C4 atom is released as formate in a sequence of metal ...
Bacher, Adelbert, Fischer, Markus, Huber, Robert, Richter, Gerald, Schiffmann, Susanne, Steinbacher, Stefan   +5 more
core  

Crystal Structures of Polymerized Fullerides AC60, A=K, Rb, Cs and Alkali-mediated Interactions

, 2002
Starting from a model of rigid interacting C60 polymer chains on an orthorhombic lattice, we study the mutual orientation of the chains and the stability of the crystalline structures Pmnn and I2/m.
A. V. Nikolaev, B. Verberck, K. H. Michel, Murrell J. N.   +3 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

NMR investigations of the interaction between the azo-dye sunset yellow and Fluorophenol [PDF]

, 2013
The interaction of small molecules with larger noncovalent assemblies is important across a wide range of disciplines. Here, we apply two complementary NMR spectroscopic methods to investigate the interaction of various fluorophenol isomers with sunset ...
Aradi F., Aradi F., Azami-Movahed M., Bernstein S. L., Brevard C., Combettes L. E., Cook T. R., Dai C., Davies D. B., Dimicoli J.-L., Dolbier W. R., Edwards D. J., Gomes C. M., Gregory D. H., Groenning M., Hazafy D., Horowitz V. R., Hunter C. A., Iain J. Day, John U., Johnson C. S., Jonathan R. Katz, Jones J. W., Joshi L., Khurana R., Kroth H., Lucy J. Day, Martin R. B., Moreira M. A., Neumann B., Nilsson M., Park H.-S., Park H.-S., Pelta M. D., Potrzebowski M. J., Prabhu U. R., Prabhu U. R., Press W. H., Price W. S., Price W. S., Price W. S., Rambaran R. N., Renshaw M. P., Tait K. M., Veselkov A. N., Weller K., West A. P., Williams J. H., Wong E. H., Wong J. P.-W., Yoshida W., Zeng P.   +51 more
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source