Results 51 to 60 of about 300,632 (358)

Comparative study of adenosine 3′‐pyrophosphokinase domains of MuF polymorphic toxins

open access: yesFEBS Open Bio, EarlyView.
With the ultimate goal of understanding the association of toxin‐immunity modules to temperate phages, we characterized toxins from three prophages and examined cross‐protection from immunity proteins. The toxins exhibit adenosine 3′‐pyrophosphokinase activity and are toxic in Escherichia coli.
Eloïse M. Paulet   +6 more
wiley   +1 more source

Liberators of NO exert a dual effect on renin secretion from isolated mouse renal juxtaglomerular cells [PDF]

open access: yes, 1993
This study aimed to examine the role of nitric oxide (NO) in the regulation of renin secretion from renal juxtaglomerular (JG) cells. Using primary cultures of mouse renal JG cells, we found that sodium nitroprusside (SNP) and 3-morpholino-sydnonimin ...
Kurtz, Armin, Schricker, K.
core   +1 more source

Crystal Structures of the Catalytic Domain of Human Soluble Guanylate Cyclase

open access: yesPLoS ONE, 2013
Soluble guanylate cyclase (sGC) catalyses the synthesis of cyclic GMP in response to nitric oxide. The enzyme is a heterodimer of homologous α and β subunits, each of which is composed of multiple domains.
C. Allerston, F. von Delft, O. Gileadi
semanticscholar   +1 more source

Adenyl Cyclase

open access: yesAnnals of Surgery, 1975
Many hormones interact with their target cells by binding to receptors located on the external surface of the target cells' plasma membrane and subsequently stimulating the enzyme, adenyl cyclase, which is located within the plasma membrane. Stimulation of adenyl cyclase results in formation of cyclic AMP which is released from the membrane into the ...
openaire   +3 more sources

ST-Producing E. coli Oppose Carcinogen-Induced Colorectal Tumorigenesis in Mice. [PDF]

open access: yes, 2017
There is a geographic inequality in the incidence of colorectal cancer, lowest in developing countries, and greatest in developed countries.
Li, Peng   +3 more
core   +2 more sources

Anthrax toxin edema factor: a bacterial adenylate cyclase that increases cyclic AMP concentrations of eukaryotic cells.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 1982
Anthrax toxin is composed of three proteins: protective antigen (PA), lethal factor (LF), and edema factor (EF). These proteins individually cause no known physiological effects in animals but in pairs produce two toxic actions.
S. Leppla
semanticscholar   +1 more source

Guanylate cyclase in Dictyostelium discoideum with the topology of mammalian adenylate cyclase [PDF]

open access: yesBiochemical Journal, 2001
The core of adenylate and guanylate cyclases is formed by an intramolecular or intermolecular dimer of two cyclase domains arranged in an antiparallel fashion. Metazoan membrane-bound adenylate cyclases are composed of 12 transmembrane spanning regions, and two cyclase domains which function as a heterodimer and are activated by G-proteins. In contrast,
Helena Snippe   +3 more
openaire   +3 more sources

Intraoral Drug Delivery: Bridging the Gap Between Academic Research and Industrial Innovations

open access: yesAdvanced Functional Materials, EarlyView.
Intraoral drug delivery offers a promising route for systemic and localized therapies, yet challenges such as enzymatic degradation, limited permeability, and microbial interactions hinder efficacy. This figure highlights innovative strategies—mucoadhesive materials, enzyme inhibitors, and permeation enhancers—to overcome these barriers.
Soheil Haddadzadegan   +4 more
wiley   +1 more source

Retention of differentiated properties in an established dog kidney epithelial cell line (MDCK). [PDF]

open access: yes, 1979
Madin-Darby canine kidney (MDCK) cells grown in tissue culture have the morphological properties of distal tubular epithelial cells, form tight junctions, and lack several proximal tubular enzyme markers.
Chuman, LM   +3 more
core  

A homolog of the vertebrate pituitary adenylate cyclase-activating polypeptide is both necessary and instructive for the rapid formation of associative memory in an invertebrate [PDF]

open access: yes, 2010
Similar to other invertebrate and vertebrate animals, cAMP dependent signaling cascades are key components of long-term memory (LTM) formation in the snail Lymnaea stagnalis, an established experimental model for studying evolutionarily conserved ...
Kemenes, György   +5 more
core   +1 more source

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