Results 41 to 50 of about 12,144 (214)

The ever unfolding story of cAMP signaling in trypanosomatids: vive la difference! [PDF]

open access: yes, 2015
Kinetoplastids are unicellular, eukaryotic, flagellated protozoans containing the eponymous kinetoplast. Within this order, the family of trypanosomatids are responsible for some of the most serious human diseases, including Chagas disease (Trypanosoma ...
De Koning, Harry P.   +2 more
core   +1 more source

Adenylyl cyclase alpha and cAMP signaling mediate Plasmodium sporozoite apical regulated exocytosis and hepatocyte infection. [PDF]

open access: yesPLoS Pathogens, 2008
Malaria starts with the infection of the liver of the host by Plasmodium sporozoites, the parasite form transmitted by infected mosquitoes. Sporozoites migrate through several hepatocytes by breaching their plasma membranes before finally infecting one ...
Takeshi Ono   +10 more
doaj   +1 more source

Bacillus anthracis edema factor substrate specificity: evidence for new modes of action [PDF]

open access: yes, 2012
Since the isolation of Bacillus anthracis exotoxins in the 1960s, the detrimental activity of edema factor (EF) was considered as adenylyl cyclase activity only.
Agrawal   +94 more
core   +2 more sources

Identification and Localization of the Cyclic Nucleotide Phosphodiesterase 10A in Bovine Testis and Mature Spermatozoa. [PDF]

open access: yesPLoS ONE, 2016
In mammals, adenosine 3', 5'-cyclic monophosphate (cAMP) is known to play highly important roles in sperm motility and acrosomal exocytosis. It is known to act through protein phosphorylation via PRKA and through the activation of guanine nucleotide ...
Serge Goupil   +5 more
doaj   +1 more source

P-Rex1 Controls Sphingosine 1-Phosphate Receptor Signalling, Morphology, and Cell-Cycle Progression in Neuronal Cells

open access: yesCells, 2021
P-Rex1 is a guanine-nucleotide exchange factor (GEF) that activates Rac-type small G proteins in response to the stimulation of a range of receptors, particularly G protein-coupled receptors (GPCRs), to control cytoskeletal dynamics and other Rac ...
Elizabeth Hampson   +6 more
doaj   +1 more source

Genetic disruption of the core circadian clock impairs hippocampus-dependent memory [PDF]

open access: yes, 2014
Perturbing the circadian system by electrolytically lesioning the suprachiasmatic nucleus (SCN) or varying the environmental light:dark schedule impairs memory, suggesting that memory depends on the circadian system.
Chen, Xuanmao   +4 more
core   +2 more sources

Adenylyl cyclase Rv1625c of Mycobacterium tuberculosis: a progenitor of mammalian adenylyl cyclases [PDF]

open access: yesThe EMBO Journal, 2001
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
Y L, Guo   +4 more
openaire   +2 more sources

Signaling pathways for transduction of the initial message of the glycocode into cellular responses [PDF]

open access: yes, 1998
The sugar units of glycan structures store information and establish an alphabet of life. The language of the oligosaccharide coding units is deciphered by receptors such as lectins and the decoded message can be transduced by multiple signaling pathways.
Gabius, Hans-Joachim, Villalobo, A.
core   +2 more sources

The Dictyostelium discoideum acaA gene is transcribed from alternative promoters during aggregation and multicellular development. [PDF]

open access: yesPLoS ONE, 2010
BACKGROUND: Extracellular cAMP is a key extracellular signaling molecule that regulates aggregation, cell differentiation and morphogenesis during multi-cellular development of the social amoeba Dictyostelium discoideum.
Maria Galardi-Castilla   +3 more
doaj   +1 more source

Guanylyl cyclase activity associated with putative bifunctional integral membrane proteins in Plasmodium falciparum. [PDF]

open access: yes, 2000
We report here that guanylyl cyclase activity is associated with two large integral membrane proteins (PfGCalpha and PfGCbeta) in the human malaria parasite Plasmodium falciparum.
Altschul   +52 more
core   +1 more source

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