- ADP signalling through P2Y purinoceptor 1, organism-specific biosystem (from REACTOME)
ADP signalling through P2Y purinoceptor 1, organism-specific biosystemCo-activation of P2Y1 and P2Y12 is necessary for complete platelet activation. P2Y1 is coupled to Gq and helps trigger the release of calcium from internal stores, leading to weak and reversible plat...
- ADP signalling through P2Y purinoceptor 12, organism-specific biosystem (from REACTOME)
ADP signalling through P2Y purinoceptor 12, organism-specific biosystemCo-activation of P2Y1 and P2Y12 is necessary for complete platelet activation. P2Y1 is coupled to Gq and helps trigger the release of calcium from internal stores, leading to weak and reversible plat...
- Activation of G protein gated Potassium channels, organism-specific biosystem (from REACTOME)
Activation of G protein gated Potassium channels, organism-specific biosystemActivation of Kir 3 channels occurs after binding of G beta gamma subunits of GPCR. Activation of Kir3/GIRK leads to K+ efflux. The dissociation of GPCR into G alpha and G beta gamma subunits is acti...
- Activation of GABAB receptors, organism-specific biosystem (from REACTOME)
Activation of GABAB receptors, organism-specific biosystemGABA B receptors are metabotropic receptors that are functionally linked to C type G protein coupled receptors.? GABA B receptors are activated upon ligand binding. The GABA B1 subunit binds ligand a...
- Activation of Kainate Receptors upon glutamate binding, organism-specific biosystem (from REACTOME)
Activation of Kainate Receptors upon glutamate binding, organism-specific biosystemKainate receptors are found both in the presynaptc terminals and the postsynaptic neurons. Kainate receptor activation could lead to either ionotropic activity (influx of Ca2+ or Na+ and K+) in the ...
- Alcoholism, organism-specific biosystem (from KEGG)
Alcoholism, organism-specific biosystemAlcoholism, also called dependence on alcohol (ethanol), is a chronic relapsing disorder that is progressive and has serious detrimental health outcomes. As one of the primary mediators of the reward...
- Alcoholism, conserved biosystem (from KEGG)
Alcoholism, conserved biosystemAlcoholism, also called dependence on alcohol (ethanol), is a chronic relapsing disorder that is progressive and has serious detrimental health outcomes. As one of the primary mediators of the reward...
- Aquaporin-mediated transport, organism-specific biosystem (from REACTOME)
Aquaporin-mediated transport, organism-specific biosystemAquaporins (AQP's) are six-pass transmembrane proteins that form channels in membranes. Each monomer contains a central channel formed in part by two asparagine-proline-alanine motifs (NPA boxes) tha...
- Calcium Regulation in the Cardiac Cell, organism-specific biosystem (from WikiPathways)
Calcium Regulation in the Cardiac Cell, organism-specific biosystemCalcium is a common signaling mechanism, as once it enters the cytoplasm it exerts allosteric regulatory affects on many enzymes and proteins. Calcium can act in signal transduction after influx resu...
- Chemokine signaling pathway, organism-specific biosystem (from KEGG)
Chemokine signaling pathway, organism-specific biosystemInflammatory immune response requires the recruitment of leukocytes to the site of inflammation upon foreign insult. Chemokines are small chemoattractant peptides that provide directional cues for th...
- Chemokine signaling pathway, conserved biosystem (from KEGG)
Chemokine signaling pathway, conserved biosystemInflammatory immune response requires the recruitment of leukocytes to the site of inflammation upon foreign insult. Chemokines are small chemoattractant peptides that provide directional cues for th...
- Cholinergic synapse, organism-specific biosystem (from KEGG)
Cholinergic synapse, organism-specific biosystemAcetylcholine (ACh) is a neurotransmitter widely distributed in the central (and also peripheral, autonomic and enteric) nervous system (CNS). In the CNS, ACh facilitates many functions, such as lear...
- Class B/2 (Secretin family receptors), organism-specific biosystem (from REACTOME)
Class B/2 (Secretin family receptors), organism-specific biosystemThis family is known as Family B (secretin-receptor family, family 2) G-protein-coupled receptors. Family B GPCRs include secretin, calcitonin, parathyroid hormone/parathyroid hormone-related peptide...
- Dopaminergic synapse, organism-specific biosystem (from KEGG)
Dopaminergic synapse, organism-specific biosystemDopamine (DA) is an important and prototypical slow neurotransmitter in the mammalian brain, where it controls a variety of functions including locomotor activity, motivation and reward, learning an...
- Dopaminergic synapse, conserved biosystem (from KEGG)
Dopaminergic synapse, conserved biosystemDopamine (DA) is an important and prototypical slow neurotransmitter in the mammalian brain, where it controls a variety of functions including locomotor activity, motivation and reward, learning an...
- G Protein Signaling Pathways, organism-specific biosystem (from WikiPathways)
G Protein Signaling Pathways, organism-specific biosystemG proteins, short for guanine nucleotide-binding proteins, are a family of proteins involved in second messenger cascades. G proteins are so called because they function as "molecular switches". They...
- G alpha (12/13) signalling events, organism-specific biosystem (from REACTOME)
G alpha (12/13) signalling events, organism-specific biosystemThe G12/13 family is probably the least well characterized subtype, partly because G12/13 coupling is difficult to determine when compared with the other subtypes which predominantly rely on assay te...
- G alpha (i) signalling events, organism-specific biosystem (from REACTOME)
G alpha (i) signalling events, organism-specific biosystemThe classical signalling mechanism for G alpha (i) is inhibition of the cAMP dependent pathway through inhibition of adenylate cyclase. Decreased production of cAMP from ATP results in decreased act...
- G alpha (q) signalling events, organism-specific biosystem (from REACTOME)
G alpha (q) signalling events, organism-specific biosystemThe classic signalling route for G alpha (q) is activation of phospholipase C beta thereby triggering phosphoinositide hydrolysis, calcium mobilization and protein kinase C activation. This provides ...
- G alpha (s) signalling events, organism-specific biosystem (from REACTOME)
G alpha (s) signalling events, organism-specific biosystemThe general function of the G alpha (s) subunit (Gs) is to activate adenylate cyclase, which in turn produces cAMP, leading to the activation of cAMP-dependent protein kinases (often referred to col...
- G alpha (z) signalling events, organism-specific biosystem (from REACTOME)
G alpha (z) signalling events, organism-specific biosystemThe heterotrimeric G protein Gz, is a member of the Gi family. Unlike other Gi family members it lacks an ADP ribosylation site cysteine four residues from the carboxyl terminus and is thus pertussis...
- G beta:gamma signalling through PI3Kgamma, organism-specific biosystem (from REACTOME)
G beta:gamma signalling through PI3Kgamma, organism-specific biosystemPI3K gamma (PI3KG) is a heterodimer consisting of a p110 catalytic subunit associated with a regulatory p101 or p84 subunit. PI3KG is most highly expressed in neutrophils, where the p101 form predomi...
- G beta:gamma signalling through PLC beta, organism-specific biosystem (from REACTOME)
G beta:gamma signalling through PLC beta, organism-specific biosystemPhospholipase C beta (PLCbeta) isoforms are activated  by G-protein beta:gamma in the order PLCB3 > PLCB2 > PLCB1. Gbeta:gamma binds to the pleckstrin homology domain of PLC beta, increasing phospho...
- G protein gated Potassium channels, organism-specific biosystem (from REACTOME)
G protein gated Potassium channels, organism-specific biosystemInwardly rectifying G protein activated K+ channels (GIRK) are tetrameric assemblies of Ki3 3 family subunits (Kir 3.1, 3.2 3.3 and 3.4). The activation of G protein coupled receptor by ligand result...
- G-protein activation, organism-specific biosystem (from REACTOME)
G-protein activation, organism-specific biosystemReceptor activated heterotrimeric G proteins consist of the Galpha and the tightly associated Gbeta-gamma subunits. When a ligand binds to a G protein-coupled receptor, it stabilises a conformation ...
- G-protein beta:gamma signalling, organism-specific biosystem (from REACTOME)
G-protein beta:gamma signalling, organism-specific biosystemThe classical role of the G-protein beta/gamma dimer was believed to be the inactivation of the alpha subunit, Gbeta/gamma was viewed as a negative regulator of Galpha signalling. It is now known tha...
- GABA B receptor activation, organism-specific biosystem (from REACTOME)
GABA B receptor activation, organism-specific biosystemFunctional GABA B receptors are heteromers of GABA B1 and B2 subunits, complexed with G protein alpha-i, 0, beta, and gamma subunits. They function as metabotropic receptors. When GABA is bound to th...
- GABA receptor activation, organism-specific biosystem (from REACTOME)
GABA receptor activation, organism-specific biosystemGamma aminobutyric acid (GABA) receptors are the major inhibitory receptors in human synapses. They are of two types. GABA A receptors are fast-acting ligand gated chloride ion channels that mediate ...
- GABAergic synapse, organism-specific biosystem (from KEGG)
GABAergic synapse, organism-specific biosystemGamma aminobutyric acid (GABA) is the most abundant inhibitory neurotransmitter in the mammalian central nervous system (CNS). When released in the synaptic cleft, GABA binds to three major classes o...
- GABAergic synapse, conserved biosystem (from KEGG)
GABAergic synapse, conserved biosystemGamma aminobutyric acid (GABA) is the most abundant inhibitory neurotransmitter in the mammalian central nervous system (CNS). When released in the synaptic cleft, GABA binds to three major classes o...
- GPCR downstream signaling, organism-specific biosystem (from REACTOME)
GPCR downstream signaling, organism-specific biosystemG protein-coupled receptors (GPCRs) are classically defined as the receptor, G-protein and downstream effectors, the alpha subunit of the G-protein being the primary signaling molecule. However, it h...
- GPCR ligand binding, organism-specific biosystem (from REACTOME)
GPCR ligand binding, organism-specific biosystemThere are more than 800 G-protein coupled receptor (GPCRs) in the human genome, making it the largest receptor superfamily. GPCRs are also the largest class of drug targets, involved in virtually all...
- Glucagon signaling in metabolic regulation, organism-specific biosystem (from REACTOME)
Glucagon signaling in metabolic regulation, organism-specific biosystemGlucagon and insulin are peptide hormones released from the pancreas into the blood, that normally act in complementary fashion to stabilize blood glucose concentration. When blood glucose levels ris...
- Glucagon-type ligand receptors, organism-specific biosystem (from REACTOME)
Glucagon-type ligand receptors, organism-specific biosystemThe glucagon hormone family regulates the activity of GPCRs from the secretin receptor subfamily in Class II/B (Mayo KE et al, 2003).
- Glutamatergic synapse, organism-specific biosystem (from KEGG)
Glutamatergic synapse, organism-specific biosystemGlutamate is the major excitatory neurotransmitter in the mammalian central nervous system(CNS). Glutamate is packaged into synaptic vesicles in the presynaptic terminal. Once released into the synap...
- Glutamatergic synapse, conserved biosystem (from KEGG)
Glutamatergic synapse, conserved biosystemGlutamate is the major excitatory neurotransmitter in the mammalian central nervous system(CNS). Glutamate is packaged into synaptic vesicles in the presynaptic terminal. Once released into the synap...
- Hemostasis, organism-specific biosystem (from REACTOME)
Hemostasis, organism-specific biosystemHemostasis is a physiological response that culminates in the arrest of bleeding from an injured vessel. Under normal conditions the vascular endothelium supports vasodilation, inhibits platelet adhe...
- Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits, organism-specific biosystem (from REACTOME)
Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits, organism-specific biosystemGABA B receptors are coupled to Gproteins and function by increasing the K+ and decreasing the Ca2+ inside the cell. The increase in K+ increases the negative membrane potential of the cell thereby h...
- Inhibition of Insulin Secretion by Adrenaline/Noradrenaline, organism-specific biosystem (from REACTOME)
Inhibition of Insulin Secretion by Adrenaline/Noradrenaline, organism-specific biosystemThe catecholamines adrenaline (epinephrine) and noradrenaline (norepinephrine) inhibit insulin secretion from pancreatic beta cells. Four effects are seen in the cells:1. Inhibition of exocytosis of ...
- Integration of energy metabolism, organism-specific biosystem (from REACTOME)
Integration of energy metabolism, organism-specific biosystemMany hormones that affect individual physiological processes including the regulation of appetite, absorption, transport, and oxidation of foodstuffs influence energy metabolism pathways. While insul...
- Inwardly rectifying K+ channels, organism-specific biosystem (from REACTOME)
Inwardly rectifying K+ channels, organism-specific biosystemInwardly rectifying K+ channels (Kir channels) show an inward rather than outward (like the voltage gated K+ channels) flow of K+ thereby contributing to maintenance of resting membrane potential an...
- Metabolism, organism-specific biosystem (from REACTOME)
Metabolism, organism-specific biosystemMetabolic processes in human cells generate energy through the oxidation of molecules consumed in the diet and mediate the synthesis of diverse essential molecules not taken in the diet as well as th...
- Morphine addiction, organism-specific biosystem (from KEGG)
Morphine addiction, organism-specific biosystemMorphine is an alkaloid from the plant extracts of opium poppy. Although morphine is highly effective for the treatment of pain, it is also known to be intensely addictive. We now know that the most ...
- Morphine addiction, conserved biosystem (from KEGG)
Morphine addiction, conserved biosystemMorphine is an alkaloid from the plant extracts of opium poppy. Although morphine is highly effective for the treatment of pain, it is also known to be intensely addictive. We now know that the most ...
- Myometrial Relaxation and Contraction Pathways, organism-specific biosystem (from WikiPathways)
Myometrial Relaxation and Contraction Pathways, organism-specific biosystemThis pathway illustrates signaling networks implicated in uterine muscle contraction at labor and quiescence throughout gestation (pregnancy). The muscle of the uterus, responsible for contractile ac...
- Neuronal System, organism-specific biosystem (from REACTOME)
Neuronal System, organism-specific biosystemThe human brain contains at least 100 billion neurons, each with the ability to influence many other cells. Clearly, highly sophisticated and efficient mechanisms are needed to enable communication a...
- Neurotransmitter Receptor Binding And Downstream Transmission In The Postsynaptic Cell, organism-specific biosystem (from REACTOME)
Neurotransmitter Receptor Binding And Downstream Transmission In The Postsynaptic Cell, organism-specific biosystemThe neurotransmitter in the synaptic cleft released by the pre-synaptic neuron binds specific receptors located on the post-synaptic terminal. These receptors are either ion channels or G protein cou...
- Opioid Signalling, organism-specific biosystem (from REACTOME)
Opioid Signalling, organism-specific biosystemOpioids are chemical substances similar to opiates, the active substances found in opium (morphine, codeine etc.). Opioid action is mediated by the receptors for endogenous opioids; peptides such as...
- Platelet activation, signaling and aggregation, organism-specific biosystem (from REACTOME)
Platelet activation, signaling and aggregation, organism-specific biosystemPlatelet activation begins with the initial binding of adhesive ligands and of the excitatory platelet agonists (released or generated at the sites of vascular trauma) to cognate receptors on the pla...
- Platelet homeostasis, organism-specific biosystem (from REACTOME)
Platelet homeostasis, organism-specific biosystemUnder normal conditions the vascular endothelium supports vasodilation, inhibits platelet adhesion and activation, suppresses coagulation, enhances fibrin cleavage and is anti-inflammatory in charact...
- Potassium Channels, organism-specific biosystem (from REACTOME)
Potassium Channels, organism-specific biosystemPotassium channels are tetrameric ion channels that are widely distributed and are found in all cell types. Potassium channels control resting membrane potential in neurons, contribute to regulation ...
- Presynaptic function of Kainate receptors, organism-specific biosystem (from REACTOME)
Presynaptic function of Kainate receptors, organism-specific biosystemKainate receptors in the presynaptic neuron are involved in modulating the release of neurotransmitters like glutamate and gamma amino butyric acid (GABA). This activity of Kainate receptors is indep...
- Prostacyclin signalling through prostacyclin receptor, organism-specific biosystem (from REACTOME)
Prostacyclin signalling through prostacyclin receptor, organism-specific biosystemProstacyclin (PGI2) is continuously produced by healthy vascular endothelial cells. It inhibits platelet activation through interaction with the Gs-coupled receptor PTGIR, leading to increased cAMP, ...
- Regulation of Insulin Secretion, organism-specific biosystem (from REACTOME)
Regulation of Insulin Secretion, organism-specific biosystemPancreatic beta cells integrate signals from several metabolites and hormones to control the secretion of insulin. In general, glucose triggers insulin secretion while other factors can amplify or in...
- Regulation of Insulin Secretion by Glucagon-like Peptide-1, organism-specific biosystem (from REACTOME)
Regulation of Insulin Secretion by Glucagon-like Peptide-1, organism-specific biosystemGlucagon-like Peptide-1 (GLP-1) is secreted by L-cells in the intestine in response to glucose and fatty acids. GLP-1 circulates to the beta cells of the pancreas where it binds a G-protein coupled r...
- Regulation of Water Balance by Renal Aquaporins, organism-specific biosystem (from REACTOME)
Regulation of Water Balance by Renal Aquaporins, organism-specific biosystemIn the kidney water and solutes are passed out of the bloodstream and into the proximal tubule via the slit-like structure formed by nephrin in the glomerulus. Water is reabsorbed from the filtrate d...
- Retrograde endocannabinoid signaling, organism-specific biosystem (from KEGG)
Retrograde endocannabinoid signaling, organism-specific biosystemEndogenous cannabinoids (endocannabinoids) serve as retrograde messengers at synapses in various regions of the brain. The family of endocannabinoids includes at least five derivatives of arachidonic...
- Retrograde endocannabinoid signaling, conserved biosystem (from KEGG)
Retrograde endocannabinoid signaling, conserved biosystemEndogenous cannabinoids (endocannabinoids) serve as retrograde messengers at synapses in various regions of the brain. The family of endocannabinoids includes at least five derivatives of arachidonic...
- Serotonergic synapse, organism-specific biosystem (from KEGG)
Serotonergic synapse, organism-specific biosystemSerotonin (5-Hydroxytryptamine, 5-HT) is a monoamine neurotransmitter that plays important roles in physiological functions such as learning and memory, emotion, sleep, pain, motor function and endoc...
- Signal Transduction, organism-specific biosystem (from REACTOME)
Signal Transduction, organism-specific biosystemSignal transduction is a process in which extracellular signals elicit changes in cell state and activity. Transmembrane receptors sense changes in the cellular environment by binding ligands, such a...
- Signal amplification, organism-specific biosystem (from REACTOME)
Signal amplification, organism-specific biosystemIn the initial response to injury, platelets adhere to damaged blood vessels, responding to the exposure of collagen from the vascular epithelium. Once adhered they degranulate, releasing stored seco...
- Signaling by GPCR, organism-specific biosystem (from REACTOME)
Signaling by GPCR, organism-specific biosystemG protein-coupled receptors (GPCRs; 7TM receptors; seven transmembrane domain receptors; heptahelical receptors; G protein-linked receptors [GPLR]) are the largest family of transmembrane receptors i...
- Thrombin signalling through proteinase activated receptors (PARs), organism-specific biosystem (from REACTOME)
Thrombin signalling through proteinase activated receptors (PARs), organism-specific biosystemThrombin activates proteinase activated receptors (PARs) that signal through heterotrimeric G proteins of the G12/13 and Gq families, thereby connecting to a host of intracellular signaling pathways....
- Thromboxane signalling through TP receptor, organism-specific biosystem (from REACTOME)
Thromboxane signalling through TP receptor, organism-specific biosystemThromboxane (TXA2) binds to the thromboxane receptor (TP). There are 2 splice variant forms of TP, differing in their cytoplasmic carboxyl terminal tails. TP beta was first identified in endothelial ...
- Transmembrane transport of small molecules, organism-specific biosystem (from REACTOME)
Transmembrane transport of small molecules, organism-specific biosystem
Transmembrane transport of small molecules
- Transmission across Chemical Synapses, organism-specific biosystem (from REACTOME)
Transmission across Chemical Synapses, organism-specific biosystemChemical synapses are specialized junctions that are used for communication between neurons, neurons and muscle or gland cells. The synapse involves a pre-synaptic neuron and a post-synaptic neuron,...