Type III CD38 is present in the membrane of neurosecretory vesicles and has a cytosol-facing catalytic domain in primate oxytocin neurons. [PDF]
Abstract CD38, an ADP‐ribosyl cyclase that generates cyclic ADP‐ribose (cADPR), is essential for Ca2+‐dependent oxytocin release. However, its subcellular localisation and membrane topology within oxytocin neurones have remained unclear. We investigated the distribution and orientation of CD38 in oxytocin‐producing neurones of Japanese macaques (Macaca
Miyamoto T +6 more
europepmc +2 more sources
Mechanism of cyclizing NAD to cyclic ADP-ribose by ADP-ribosyl cyclase and CD38. [PDF]
Mammalian CD38 and its Aplysia homolog, ADP-ribosyl cyclase (cyclase), are two prominent enzymes that catalyze the synthesis and hydrolysis of cyclic ADP-ribose (cADPR), a Ca2+ messenger molecule responsible for regulating a wide range of cellular ...
Graeff R +6 more
europepmc +2 more sources
Structural basis for enzymatic evolution from a dedicated ADP-ribosyl cyclase to a multifunctional NAD hydrolase. [PDF]
Cyclic ADP-ribose (cADPR) is a universal calcium messenger molecule that regulates many physiological processes. The production and degradation of cADPR are catalyzed by a family of related enzymes, including the ADP-ribosyl cyclase from Aplysia ...
Liu Q +9 more
europepmc +2 more sources
A versatile platform for chemical engineering of exosomes empowered by ADP-ribosyl cyclases [PDF]
Cell-secreted exosomes have been emerging as an increasingly attractive form of nanomaterials for biomedical research. Various approaches have been established to genetically modify exosomes with proteins of interest for new and/or improved functions ...
Lei Zhang +11 more
doaj +2 more sources
Cyclic adenosine 5'-diphosphate ribose analogs without a "southern" ribose inhibit ADP-ribosyl cyclase-hydrolase CD38. [PDF]
Cyclic adenosine 5′-diphosphate ribose (cADPR) analogs based on the cyclic inosine 5′-diphosphate ribose (cIDPR) template were synthesized by recently developed stereo- and regioselective N1-ribosylation.
Swarbrick JM +5 more
europepmc +2 more sources
CD38-dependent ADP-ribosyl cyclase activity in developing and adult mouse brain. [PDF]
CD38 is a transmembrane glycoprotein that is expressed in many tissues throughout the body. In addition to its major NAD+-glycohydrolase activity, CD38 is also able to synthesize cyclic ADP-ribose, an endogenous calcium-regulating molecule, from NAD+.
Ceni C +10 more
europepmc +5 more sources
CD38/cADPR-mediated calcium signaling in a human myometrial smooth muscle cell line, PHM1. [PDF]
Abstract Cyclic ADP‐ribose (cADPR) has emerged as a calcium‐regulating second messenger in smooth muscle cells. CD38 protein possesses ADP‐ribosyl cyclase and cADPR hydrolase activities and mediates cADPR synthesis and degradation. We have previously shown that CD38 expression is regulated by estrogen and progesterone in the myometrium.
Dogan S +5 more
europepmc +2 more sources
Characterization of the Active Site of ADP-ribosyl Cyclase* [PDF]
ADP-ribosyl cyclase synthesizes two Ca2+ messengers by cyclizing NAD to produce cyclic ADP-ribose and exchanging nicotinic acid with the nicotinamide group of NADP to produce nicotinic acid adenine dinucleotide phosphate.
C. Munshi +5 more
semanticscholar +5 more sources
ADP-Ribosyl Cyclases Regulate Early Development of the Sea Urchin [PDF]
ADP-ribosyl cyclases are multifunctional enzymes involved in the metabolism of nucleotide derivatives necessary for Ca2+ signalling such as cADPR and NAADP.
Dale, L +4 more
core +8 more sources
Locally released oxytocin (OT) activates OT receptors (2.1:OXY:1:OT:) in neighboring neurons in the hypothalamus and their terminals in the posterior pituitary, resulting in further OT release, best known in autoregulation occurring during labor or milk ...
O. Lopatina +4 more
semanticscholar +3 more sources

