Results 21 to 30 of about 102,595 (300)
Role of adenylyl cyclase in reduced β-adrenoceptor-mediated vasorelaxation during maturation [PDF]
Beta-adrenergic receptor (βAR)-dependent blood vessel relaxation is impaired in older animals and G protein activation has been suggested as the causative mechanism.
O.A. López-Canales+5 more
doaj +4 more sources
KAT7‐acetylated and cytoplasm‐translocated G‐protein GαS enhances IL‐6 effect and drives HCC progenitor cell progression. Abstract Background and Aims Hepatocarcinogenesis goes through HCC progenitor cells (HcPCs) to fully established HCC, and the mechanisms driving the development of HcPCs are still largely unknown.
Ye Zhou+15 more
wiley +1 more source
Adenylyl Cyclases in Mycobacteria [PDF]
Adenylyl cyclase (AC) catalyzes the formation of cyclic AMP (cAMP) from ATP. The cAMP produced by AC serves as a secondary messenger in a variety of signal transduction pathways, and controls various cellular functions in many organisms. ACs can be grouped into six classes based on their primary amino acid sequences. Eukaryotes and mycobacteria contain
Han-Seung Jeon, Jeong-Il Oh, In-Jeong Ko
openaire +2 more sources
Role of membrane microdomains in compartmentation of cAMP signaling. [PDF]
Spatially restricting cAMP production to discrete subcellular locations permits selective regulation of specific functional responses. But exactly where and how cAMP signaling is confined is not fully understood.
Shailesh R Agarwal+7 more
doaj +1 more source
PTH1R Actions on Bone Using the cAMP/Protein Kinase A Pathway
After the initial signaling action of parathyroid hormone (PTH) on bone was shown to be activation of adenylyl cyclase, its target was found to be cells of the osteoblast lineage, to the exclusion of osteoclasts and their precursors. This led to the view
T. John Martin
doaj +1 more source
Adenylyl cyclase Rv1625c of Mycobacterium tuberculosis: a progenitor of mammalian adenylyl cyclases [PDF]
The gene Rv1625c from Mycobacterium tuberculosis encodes a membrane-anchored adenylyl cyclase corresponding to exactly one-half of a mammalian adenylyl cyclase. An engineered, soluble form of Rv1625c was expressed in Escherichia coli. It formed a homodimeric cyclase with two catalytic centers. Amino acid mutations predicted to affect catalysis resulted
Ursula Kurz+4 more
openaire +3 more sources
Are β3‐adrenoceptor gene polymorphisms relevant for urology?
Abstract Aims β3‐adrenoceptors (ARs) are an important drug target for the treatment of overactive bladder syndrome (OAB) and are under investigation for other indications. The human β3‐AR gene is polymorphic; an exchange of amino acid tryptophan (Trp) for arginine (Arg) in position 64 of the receptor protein is the most frequent and best‐studied ...
Martin C. Michel
wiley +1 more source
Inhibition of signaling downstream of beta‐2 adrenoceptor by propranolol in prostate cancer cells
Abstract Background There is accumulating evidence that propranolol, an antagonist of beta‐1 and beta‐2 adrenoreceptors, extends survival of patients with prostate cancer; yet it is not known whether propranolol inhibits beta‐adrenergic signaling in prostate cancer cells, or systemic effects of propranolol play the leading role in slowing down cancer ...
Aljoharah Alaskar+7 more
wiley +1 more source
The structure of a membrane adenylyl cyclase bound to an activated stimulatory G protein
The architecture of a signaling hub Adenylyl cyclases (ACs) respond to a variety of inputs to generate the signaling molecule cyclic adenosine monophosphate. ACs are regulated by G proteins, which are activated by upstream receptors. Qi et al. determined
Chao Qi+3 more
semanticscholar +1 more source
Inhibitors of membranous adenylyl cyclases [PDF]
Membranous adenylyl cyclases (mACs) constitute a family of nine isoforms with different expression patterns. Studies with mAC gene knockout mice provide evidence for the notion that AC isoforms play distinct (patho)physiological roles. Consequently, there is substantial interest in the development of isoform-selective mAC inhibitors.
Roland Seifert+4 more
openaire +3 more sources