Novel structural insights into GPCR–β-arrestin interaction and signaling

R Ranjan, H Dwivedi, M Baidya, M Kumar… - Trends in cell …, 2017 - cell.com
G protein-coupled receptors (GPCRs) are major signal recognition and transmission units in
the plasma membrane. The interaction of activated and phosphorylated GPCRs with the …

[PDF][PDF] Conformational sensors and domain swapping reveal structural and functional differences between β-arrestin isoforms

E Ghosh, H Dwivedi, M Baidya, A Srivastava, P Kumari… - Cell Reports, 2019 - cell.com
Desensitization, signaling, and trafficking of G-protein-coupled receptors (GPCRs) are
critically regulated by multifunctional adaptor proteins, β-arrestins (βarrs). The two isoforms of …

A synthetic intrabody-based selective and generic inhibitor of GPCR endocytosis

…, A Srivastava, M Baidya, P Kumari, H Dwivedi… - Nature …, 2017 - nature.com
Beta-arrestins (βarrs) critically mediate desensitization, endocytosis and signalling of G
protein-coupled receptors (GPCRs), and they scaffold a large number of interaction partners. …

[HTML][HTML] Partial ligand-receptor engagement yields functional bias at the human complement receptor, C5aR1

…, A Srivastava, M Baidya, P Kumari, H Dwivedi… - Journal of Biological …, 2019 - ASBMB
The human complement component, C5a, binds two different seven-transmembrane
receptors termed C5aR1 and C5aR2. C5aR1 is a prototypical G-protein–coupled receptor that …

Mefloquine induces ROS mediated programmed cell death in malaria parasite: Plasmodium

S Gunjan, SK Singh, T Sharma, H Dwivedi… - Apoptosis, 2016 - Springer
Recent studies pioneer the existence of a novel programmed cell death pathway in malaria
parasite plasmodium and suggest that it could be helpful in developing new targeted anti-…

Reserpine ameliorates Aβ toxicity in the Alzheimer's disease model in Caenorhabditis elegans

U Arya, H Dwivedi, JR Subramaniam - Experimental gerontology, 2009 - Elsevier
Earlier we have reported that reserpine, an antihypertensive drug, known to downregulate
biogenic amines through inhibition of the vesicular monoamine transporter (VMAT), increases …

Arteether nanoemulsion for enhanced efficacy against Plasmodium yoelii nigeriensis malaria: An approach by enhanced bioavailability

P Dwivedi, R Khatik, P Chaturvedi… - Colloids and Surfaces B …, 2015 - Elsevier
The present work is focused on the preparation of nanoemulsions (NEs) loaded with arteether
(ART) for its enhanced efficacy against malaria parasites. ART-NEs have been prepared …

Molecular basis of β-arrestin coupling to formoterol-bound β1-adrenoceptor

…, T Warne, R Nehmé, S Pandey, H Dwivedi-Agnihotri… - Nature, 2020 - nature.com
The β 1 -adrenoceptor (β 1 AR) is a G-protein-coupled receptor (GPCR) that couples 1 to
the heterotrimeric G protein G s . G-protein-mediated signalling is terminated by …

[PDF][PDF] GPCR Signaling: The Interplay of Gαi and β-arrestin

H Dwivedi, M Baidya, AK Shukla - Current Biology, 2018 - cell.com
Biased agonism at G-protein-coupled receptors is generally conceptualized as the ability of
certain stimuli to trigger downstream signaling exclusively through one of two effectors. …

Reserpine modulates neurotransmitter release to extend lifespan and alleviate age-dependent Aβ proteotoxicity in Caenorhabditis elegans

…, R Kumar, R Sahu, CK Das, K Gupta, H Dwivedi… - Experimental …, 2012 - Elsevier
Aging is a debilitating process often associated with chronic diseases such as diabetes,
cardiovascular and neurodegenerative diseases like Alzheimer's disease (AD). AD occurs at a …