A Peptide Core Motif for Binding to Heterotrimeric G Protein α Subunits [PDF]
Recently, in vitro selection using mRNA display was used to identify a novel peptide sequence that binds with high affinity to G{alpha}i1. The peptide was minimized to a 9-residue sequence (R6A-1) that retains high affinity and specificity for the GDP ...
Adhikari, Anirban +4 more
core +2 more sources
Multi-Omics Analysis of Multiple Glucose-Sensing Receptor Systems in Yeast
The yeast Saccharomyces cerevisiae has long been used to produce alcohol from glucose and other sugars. While much is known about glucose metabolism, relatively little is known about the receptors and signaling pathways that indicate glucose availability.
Shuang Li +7 more
doaj +1 more source
Inhibition of Subsets of G Protein-coupled Receptors by Empty Mutants of G Protein α Subunits in Go, G11, and G16 [PDF]
We previously reported that the xanthine nucleotide binding Goα mutant, GoαX, inhibited the activation of Gi-coupled receptors. We constructed similar mutations in G11α and G16α and characterized their nucleotide binding and receptor interaction.
Gu, Lingjie, Simon, Melvin I., Yu, Bo
core +1 more source
Calcium-independent inhibitory G-protein signaling induces persistent presynaptic muting of hippocampal synapses [PDF]
Adaptive forms of synaptic plasticity that reduce excitatory synaptic transmission in response to prolonged increases in neuronal activity may prevent runaway positive feedback in neuronal circuits.
Chang, Chun Yun +3 more
core +2 more sources
Crystal structure of rhodopsin bound to arrestin by femtosecond X-ray laser. [PDF]
G-protein-coupled receptors (GPCRs) signal primarily through G proteins or arrestins. Arrestin binding to GPCRs blocks G protein interaction and redirects signalling to numerous G-protein-independent pathways.
Barty, Anton +71 more
core +1 more source
Electrospun Nanofibers and their Application in Tissue Repair and Engineering
Introduction: Tissue engineering is the repair and replacement of damaged tissues and requires a combination of cells, growth factor and porous scaffolds.
Sareh Arjmand +3 more
doaj
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
Role of G{alpha}12 and G{alpha}13 as Novel Switches for the Activity of Nrf2, a Key Antioxidative Transcription Factor [PDF]
G{alpha}12 and G{alpha}13 function as molecular regulators responding to extracellular stimuli. NF-E2-related factor 2 (Nrf2) is involved in a protective adaptive response to oxidative stress.
Cho, Min Kyung +6 more
core +2 more sources
The G protein γ subunit SlGGC1 regulates saline-alkali stress response in tomato
Saline-alkali stress poses a severe threat to crop yield and quality. While significant progress has been achieved in elucidating the mechanisms of plant resistance to salt stress, the molecular underpinnings governing plant responses to saline-alkali ...
Yanru Zhang +10 more
doaj +1 more source
CarD is an essential global transcription regulator from Mycobacterium tuberculosis (Mtb) that binds RNA polymerase and activates transcription by stabilizing the transcription initiation complex.
Gundeep Kaur +5 more
doaj +1 more source

