Results 61 to 70 of about 5,480,727 (338)

Prediction of the coupling specificity of G protein coupled receptors to their G proteins [PDF]

Bioinformatics, 2001
Abstract G protein coupled receptors (GPCRs) are found in great numbers in most eukaryotic genomes. They are responsible for sensing a staggering variety of structurally diverse ligands, with their activation resulting in the initiation of a variety of cellular signalling cascades.
Steffen Möller, Jaak Vilo, Michael D. R. Croning   +2 more
openaire   +3 more sources

The thioredoxin‐like and one glutaredoxin domain are required to rescue the iron‐starvation phenotype of HeLa GLRX3 knock out cells

FEBS Letters, EarlyView.
Glutaredoxin (Grx) 3 proteins contain a thioredoxin domain and one to three class II Grx domains. These proteins play a crucial role in iron homeostasis in eukaryotic cells. In human Grx3, at least one of the two Grx domains, together with the thioredoxin domain, is essential for its function in iron metabolism.
Laura Magdalena Jordt, Manuela Gellert, Finja Zelms, Sander Bekeschus, Christopher Horst Lillig   +4 more
wiley   +1 more source

Regulators of G protein signalling proteins in the human myometrium [PDF]

, 2009
The contractile state of the human myometrium is controlled by extracellular signals that promote relaxation or contraction. Many of these signals function through G proteincoupled receptors at the cell surface, stimulating heterotrimeric G proteins and ...
Abramow-Newerly, Ballon, Bansal, Benians, Bernstein, Blanks, Brodt-Eppley, Chatterjee, Cho, De Vries, Dohlman, Druey, Europe-Finner, Georgoussi, Graham Ladds, Hague, Hao, Hepler, Hill, Hollinger, Hu, John Davey, Koelle, Ladds, Langer, Li, Lopez-Bernal, Manu Vatish, Milligan, Mittmann, Moore, Neitzel, O'Brien, Park, Phaneuf, Plested, Ross, Saitoh, Sanborn, Sevasti Zervou, Snabaitis, Snow, Steven Thornton, Suarez, Tamirisa, Tang, Tinker, Tribe, Wang, Willars, Xie, Xu, Zeng   +52 more
core   +1 more source

In vivo evidence for glycyl radical insertion into a catalytically inactive variant of pyruvate formate‐lyase

FEBS Letters, EarlyView.
Dimeric pyruvate formate‐lyase cleaves pyruvate using a radical‐based mechanism. G734 serves as a radical storage location, and the radical is transferred to the catalytic C419 residue. Mutation of the C418‐C419 pair causes loss of enzyme activity, but does not impede radical introduction onto G734. Therefore, cis‐ but not trans‐radical transfer occurs
Michelle Kammel, A. F. Volker Wagner, R. Gary Sawers   +2 more
wiley   +1 more source

G Protein Trafficking [PDF]

, 2012
The classical view of heterotrimeric G protein signaling places G -proteins at the cytoplasmic surface of the cell's plasma membrane where they are activated by an appropriate G protein-coupled receptor. Once activated, the GTP-bound Gα and the free Gβγ are able to regulate plasma membrane-localized effectors, such as adenylyl cyclase, phospholipase C ...
openaire   +2 more sources

Mutations in G proteins and G protein-coupled receptors in endocrine disease [PDF]

Journal of Clinical Endocrinology & Metabolism, 1996
Naturally occurring mutations in the G protein Gs-α subunit and in a number of G protein-coupled receptors (GPCRs) have been identified in human diseases. Such mutations may lead to loss or gain of function of the encoded protein. Study of such naturally occurring, disease-causing mutations offers unique insights into G protein and GPCR structure and ...
openaire   +3 more sources

P‐glycoprotein modulates the fluidity gradient of the plasma membrane of multidrug resistant CHO cells

FEBS Letters, EarlyView.
To explore the impact of the overexpression of the multidrug‐transporter P‐glycoprotein (ABCB1) on membrane fluidity, we compared the transversal gradient of mobility and microviscosity in plasma membranes of drug‐sensitive Chinese hamster ovary cells (AuxB1) and their multidrug‐resistant derivatives (B30) using the fluorescent n‐(9‐anthroyloxy) fatty ...
Roger Busche, John R. Riordan, Burkhard Tümmler   +2 more
wiley   +1 more source

Need for protein supplementation in the diet of growing dairy bulls fed total mixed ration based on moderate digestible grass silage and barley [PDF]

, 2008
The objective of the present experiment was to study the need for the protein supplementation in the diet of growing dairy bulls (initial live weight 272 ± 28.5 kg and final live weight 666 ± 31.2 kg, on average) fed total mixed ration based on moderate ...
Huuskonen, Arto, Joki-Tokola, Erkki, Khalili, Hannele   +2 more
core   +3 more sources

Anti-G protein antibodies targeting the RSV G protein CX3C chemokine region improve the interferon response

Therapeutic Advances in Infectious Disease, 2023
Background: Respiratory syncytial virus (RSV) is a poor inducer of antiviral interferon (IFN) responses which result in incomplete immunity and RSV disease.
Harrison C. Bergeron, Lawrence M. Kauvar, Ralph A. Tripp   +2 more
doaj   +1 more source

Structures for G-Protein-Coupled Receptor Tetramers in Complex with G Proteins

Trends in Biochemical Sciences, 2015
G-Protein-coupled receptors (GPCRs) were classically described as monomers. We now appreciate that they also function as homo- and hetero-oligomers, for which structural information is lacking. Here, we use available 3D structures and biochemical considerations to present and evaluate experimentally testable structural models for GPCR oligomers and ...
Arnau Cordomí, Rafael Franco, Rafael Franco, María S. Aymerich, Gemma Navarro, Gemma Navarro   +5 more
openaire   +3 more sources