Results 91 to 100 of about 9,530,351 (265)

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

Transforming growth factor beta 2 and heme oxygenase 1 genes are risk factors for the cerebral malaria syndrome in Angolan children. [PDF]

, 2010
BACKGROUND: Cerebral malaria (CM) represents a severe outcome of the Plasmodium falciparum infection. Recent genetic studies have correlated human genes with severe malaria susceptibility, but there is little data on genetic variants that increase the ...
Sambo, Maria Rosário, Carla Benchimol, Marques, Maria Isabel, Nuno Sepúlveda, Carlos Penha-Gonçalves, Maria Rosário Sambo, Maria Isabel Marques, Stefan Mustafa, Sepúlveda, Nuno, Sepúlveda Nuno, Gonçalves Lígia, Trovoada, Maria Jesus, Mustafa Stefan, Rute Velosa, Marques Maria Isabel, Velosa, Rute, António Coutinho, Benchimol, Carla, Vatúsia Quinhentos, Sambo Maria Rosário, Quinhentos Vatúsia, Oswald Wagner, Taane G Clark, Benchimol Carla, Penha-Gonçalves Carlos, Penha-Gonçalves, Carlos, Gonçalves, Lígia, Mustafa, Stefan, Coutinho, António, Maria Jesus Trovoada, Coutinho António, Clark Taane G., Lígia Gonçalves, Trovoada Maria Jesus, Quinhentos, Vatúsia, Wagner, Oswald, Wagner Oswald, Taane G. Clark, Clark, Taane G, Velosa Rute   +39 more
core   +1 more source

Transforming growth factor beta family expression at the bovine feto-maternal interface

Reproductive Biology and Endocrinology, 2010
Background Endometrial remodelling is necessary for implantation in all mammalian species. The TGF beta super-family plays a crucial role in this event in humans and mice.
Herath Chandana B, Kizaki Keiichiro, Sugawara Kumiko, Hasegawa Yoshihisa, Hashizume Kazuyoshi   +4 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Differential in vitro phenotype pattern, transforming growth factor-beta(1) activity and mRNA expression of transforming growth factor-beta(1) in Apert osteoblasts

, 1999
The phenotype of Apert osteoblasts differs from that of normal osteoblasts in the accumulation of macromolecules in the extracellular matrix. Apert osteoblasts increase type I collagen, fibronectin and glycosaminoglycans secretion compared with normal ...
F. Carinci, T. Baroni, F. Pezzetti, D. Martinese, E. Becchetti, M. Calvitti, L. Marinucci, P. Locci, C. Lilli   +8 more
core   +1 more source

TGF-beta 1-induced epithelial-to-mesenchymal transition and therapeutic intervention in diabetic nephropathy [PDF]

, 2010
Background/Aims: Epithelial-to-mesenchymal cell transformation (EMT) is the trans-differentiation of tubular epithelial cells into myofibroblasts, an event underlying progressive chronic kidney disease in diabetes, resulting in fibrosis.
Hills, Claire E., Squires, Paul E.
core   +1 more source

Interleukin-6, vascular endothelial growth factor and transforming growth factor beta 1 in canine steroid responsive meningitis-arteritis

BMC Veterinary Research, 2013
Background Steroid Responsive Meningitis-Arteritis (SRMA) is a common cause of inflammation of the canine central nervous system (CNS). To investigate if transforming growth factor beta 1 (TGF-β1), interleukin-6 (IL-6) and vascular endothelial growth ...
Maiolini Arianna, Otten Meike, Hewicker-Trautwein Marion, Carlson Regina, Tipold Andrea   +4 more
doaj   +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

Metastatic niche shaped by host factors influences disseminated cancer cell fate

FEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward, Álvaro Ruiz‐Tabas, Patricia Altea‐Manzano   +2 more
wiley   +1 more source