Pubmed abstracts for Protein-Protein Interaction search result :


Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
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Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
A double sucrose gap voltage clamp technic has been used to study the extra current induced by acetylcholine ( Iach ) on the myocardial membrane on frog atrial trabeculae . 1 ) No desensitization of the Iach current is noted for repeated perfusions of Ach . 2 ) The Iach current is suppressed by atropine . 3 ) The reversal potential Each is more negative than the resting potential 20 mV less than or equal to Each less than or equal to OmV . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The action of acetylcholine ( ACh ) on membrane potential and currents in frog atrial muscle has been studied with a double sucrose gap technique . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The effects of acetylcholine ( ACh ) , noradrenaline ( NA ) and isoprenaline ( Isop ) on the membrane and mechanical properties of smooth muscle cells of the pig coronary artery were investigated by micro electrode , double sucrose gap and isometric tension recording methods . ( 1 ) The mean membrane potential was 51 . 4 mV and the membrane was electrically quiescent . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
By means of investigating the action potentials and the phase plane trajectories of trabeculae from the rabbit atrium using a modified single sucrose gap technique the anomalous rectification disappears and also the effect of acetylcholine ( ACh ) on action potential duration . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The action of acetylcholine ( ACh ) and verapamil ( VePa ) on the action potential ( 5 ( t ) ) , phase plane trajectories of 5 ( t ) ( dV / dt 5 ( t ) plot ) and isotonic contractions were investigated using an isolated vegal innervated preparation from rabbit atrium ( method 1 ) and investigating action potentials from atrial trabeculae by means a modified sucrose gap technique ( method 2 ) . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The negative inotropic action of ACh was investigated by voltage clamping mammalian atrial myocardium with the single sucrose gap method . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The sensory discharges , changes in `` resting ' ' receptor polarization and the mass receptor potential evoked by ACh or NaCN were recorded with nonpolarizable electrodes placed across the gap . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
Using the double sucrose gap , we have examined the role of K+ channels in the cholinergic depolarizations in response to field stimulation and acetylcholine ( Ach ) in canine trachealis . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
At low concentrations of ACh and DMPP the gap distributions were complex and best fitted by the sum of four exponential components . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The distributions of durations of the gaps ( closed states ) and the bursts ( the states identified as open states after the shortest gaps were ignored ) in single channel activity of native ( non treated with DTT ) nicotinic AChRs caused by ACh ( 30 microM ) and BrACh ( 30 microM ) were similar and both revealed four to five and two to three components for gap intervals and burst durations respectively . 5 . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
We therefore propose that ras p 21 GTP complexed with GAP ( ras p 21 GAP ) blocks K+ [ ACh ] currents . ^^^ The channel block could be overcome by GTP gamma S activation of endogenous Gk ; this indicates that ras p 21 GAP does not interfere with interaction of Gk with the K+ [ ACh ] channel directly , but prevents coupling of the muscarinic receptor to endogenous Gk . . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
These findings indicate that ACh released into the synaptic gap by axonal firing reaches a concentration sufficient to influence its own release by a prejunctional effect . 3 . ^^^ When the prejunctional nicotinic and muscarinic receptors were stimulated by a high concentration of extracellular ACh which had accumulated in the junctional gap in the presence of physostigmine , atropine did not influence the evoked release of [ 3H ] ACh . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
In rat lacrimal gland cells , application of acetylcholine ( ACh ) opens Ca dependent channels and closes gap junction channels . ^^^ We have shown previously that the increase in intracellular calcium concentration induced by ACh , is not required for the closure of gap junctions . ^^^ These results indicate that ACh induced closure of gap junction channels may be mediated by PKC . . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The depolarization produced by acetylcholine ( ACh ) ( 5 . 5 microM 11 mM ) and by tetraethylammonium ( TEA ) ( 0 . 95 48 mM ) in chick skeletal muscle were recorded using a sucrose gap external recording device . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The effect of adrenaline and acetylcholine ( ACh ) on the membrane potential of Rana pipiens sympathetic ganglia was examined by means of the sucrose gap recording technique . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
As adenosine has a potent stabilizing action on catecholamine stimulation in the myocardium , the mode of interaction of adenosine and acetylcholine ( ACh ) was studied with regard to the membrane potential , current and tension components of the bullfrog atrium , using the single or double sucrose gap method . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The effect of acetylcholine ( ACh ) on the membrane current components in guinea pig papillary muscle was studied by the single sucrose gap voltage clamp method . 2 . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The gap junction inhibitors halothane ( 2 mM ) and 1 heptanol ( 2 mM ) , or replacement of NaCl with sodium propionate did not affect the L NOARG / IM resistant relaxation induced by ACh . 5 . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
ACh induced relaxation of ' sandwich ' mounts of aorta or SMA were unaffected by Gap 27 but completely abolished by L NAME . 6 . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
After blocking gap junctions , including myoendothelial junctions , with 18beta glycyrrhetinic acid , ACh induced an outward current with two phases in voltage clamped endothelial cells . ^^^ In smooth muscle cells , ACh failed to induce a membrane current after gap junctions had been blocked with 18beta glycyrrhetinic acid . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The temporal changes in cytosolic free Ca2+ ( [ Ca2+ ] 1 ) , Ca2+ dependent membrane currents ( Im ) , and gap junctional current ( Ij ) elicited by acetylcholine ( ACh ) were measured in rat pancreatic acinar cells using digital imaging and dual perforated patch clamp recording . ^^^ Closure of gap junction channels may occur to functionally isolate nearby cells differing in their intrinsic sensitivity to ACh and thereby to allow for sustained activity of groups of secreting cells . . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
In intact rings , relaxations to ACh were attenuated synergistically by L NAME and Gap 27 peptide , an inhibitor of GJC , whereas ACh evoked relaxations of `` sandwich ' ' preparations were unaffected by the peptide but were abolished by L NAME . ^^^ In the case of ACh , relaxation requires transfer of a factor or factors from the endothelium to smooth muscle via gap junctions , whereas A 23187 permits release directly into the extracellular space . . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
A synthetic connexin mimetic peptide ( Gap 27 peptide ) was used to evaluate the contribution of gap junctional communication to smooth muscle responses mediated by the endothelium dependent agonist acetylcholine ( ACh ) in rabbit mesenteric arteries . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
Low levels of ACh in the biophase of the cholinergic synaptic gap may trigger the positive feedback system , and high levels of ACh may trigger the negative feedback system . 3 . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The role of chloride channels has been examined in canine tracheal smooth muscle by recording mechanical responses to field stimulation and to acetylcholine ( ACh ) and by sucrose gap recording of excitatory junction potentials and ACh induced electrical changes . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
Combined application of charybdotoxin ( CTX , 50 nM ) and apamin ( 0 . 1 microM ) , inhibitors of some types of K ( + ) channels , abolished the ACh induced hyperpolarization and dilatation . 4 . 18 beta Glycerrhetinic acid ( 18 beta GA , 30 microM ) , a known inhibitor of gap junctions , depolarized the membrane to about 36 mV , either in the absence or in the presence of Ba ( 2+ ) , with no associated contraction of the arterioles . ^^^ It is concluded that in submucosal arterioles , hyperpolarizations produced by ACh have causal relationship to the arteriolar dilatation . 18 beta GA did not induce parallel relationship between hyperpolarization and dilatation produced by ACh . 18 beta GA may have unidentified inhibitory effects on agonist mediated actions , in addition to the inhibition of gap junctions . . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
We evaluated the effects of sympathetic and parasympathetic activation on atrial flutter ( AF 1 ) by determining the effects of norepinephrine ( NE ) and acetylcholine ( ACh ) on the composition of the excitable gap . ^^^ The excitable gap ( 27 + / 1 ms ) was significantly ( P < 0 . 001 ) increased by NE ( 34 + / 1 ms ) and ACh ( 50 + / 2 ms ) . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
In conclusion , all three agents inhibit EDHF type relaxations evoked by ACh , providing further evidence for the involvement of gap junctions in such responses . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
Communication in the nervous system takes place at chemical and electrical synapses , where neurotransmitter gated ion channels , such as the nicotinic acetylcholine ( ACh ) receptor , and gap junction channels control propagation of electrical signals from one cell to the next . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
Responses to ACh and CPA were both inhibited by interrupting cell to cell coupling via gap junctions with 18alpha glycyrrhetinic acid and a connexin specific Gap 27 peptide . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
Pharmacological characteristics of non prostanoid ( PGI 2 ) , non NO mediated endothelium dependent relaxation in response to acetylcholine ( ACh ) were examined in the isolated rat mesenteric artery , especially focusing on the possible contribution of the gap junctional communication in the response . ^^^ Furthermore , a gap junction inhibitor , 18alpha glycyrrhetinic acid ( 18alpha GA ) did not show dramatic inhibitory effect on non PGI 2 , non NO mediated endothelium dependent relaxation induced by ACh . ^^^ These findings suggest that 1 ) metabolites of AA are not involved in non PGI 2 , non NO mediated endothelium dependent relaxation to ACh in the isolated rat mesenteric artery ; 2 ) Heterocellular gap junctional communication does not mainly account for non PGI 2 , non NO mediated endothelium dependent relaxation evoked by ACh in this artery . . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
Gap junction inhibitors ( Gap 27 ; 300 microM and 18 alpha glycyrrhetinic acid ; 100 microM ) also depressed dilatation to ACh . 4 . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
To achieve this goal , ACh was depleted from barrel field cortex , and 14 days after the depletion surgery , whiskers were trimmed and animals were trained on a whisker dependent gap crossing task . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
Arteriolar dilations to ACh were also inhibited by intraluminal administration of the Ca ( 2+ ) activated K ( + ) ( K ( Ca ) ) channel blockers charybdotoxin plus apamin or by palmitoleic acid , an uncoupler of myoendothelial gap junctions without affecting changes in endothelial [ Ca ( 2+ ) ] ( 1 ) . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
Disruption of gap junctional coupling using the peptide Gap 27 markedly reduced the ACh induced hyperpolarization in SMCs , but not in ECs , of the mesenteric artery . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
To elucidate the role of gap junctions in endothelium dependent hyperpolarization , we examined the effects of the gap junction inhibitors 18 alpha glycyrrhetinic acid ( 18 alpha GA ; 10 ( 4 ) mol / L ) and carbenoxolone ( 3 10 10 ( 4 ) mol / L ) , a water soluble form of 18 beta GA , on hyperpolarization and relaxation to ACh in rat proximal and distal mesenteric arteries . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
ACh and KCl stimulate vasomotor responses that spread rapidly and bidirectionally along arteriole walls , most likely via spread of electric current or Ca2+ through gap junctions . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
Gap junctional communication underpins EDHF type relaxations evoked by ACh in the rat hepatic artery . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
OBJECTIVE : To characterize the role of K ( + ) channels , the cytochrome P 450 ( CYP ) metabolite 5 , 6 EET , and gap junctions in modulation of arteriolar myogenic tone by a non nitric oxide nonprostaglandin mediator , termed `` endothelium dependent hyperpolarizing factor ' ' ( EDHF ) , released to acetylcholine ( ACh ) in skeletal muscle arterioles . ^^^ ACh induced responses were inhibited by KCl depolarization , K ( Ca ) channel blockers ( TEA , charybdotoxin ) , or gap junction inhibitors ( 18alpha glycyrrhetinic acid , hyperosmolar sucrose ) . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The putative gap junction blocker 18 beta glycyrrhetinic acid suppressed the ACh induced responses in SMCs , but not in ECs . 4 . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
Relaxations and elevations in cAMP evoked by ACh were abolished by 18alpha glycyrrhetinic acid , which disrupts gap junction plaques , whereas the corresponding responses to A 23187 were unaffected by this agent . ^^^ These findings provide evidence that EDHF type relaxations of rabbit iliac arteries evoked by ACh and A 23187 depend on cAMP accumulation in smooth muscle , but involve signaling via myoendothelial gap junctions and the extracellular space , respectively . . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The characteristics of the acetylcholine ( ACh ) and 5 hydroxytryptamine ( 5 HT ) receptors of Deroceras buccal muscle were examined using specific pharmacological probes and sucrose gap electrophysiological analysis . ^^^ In view of the phylogenetic gap between molluscs and mammals it is not surprising that the ACh and 5 HT receptors of Deroceras can not be properly classified by conventional mammalian terminology . . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
We have compared the contributions of gap junctional communication and chemical signaling via H2O2 to NO independent relaxations evoked by the Ca2+ ionophore A 23187 and acetylcholine ( ACh ) in rabbit ilio femoral arteries . ^^^ We conclude that myoendothelial gap junctions underpin smooth muscle hyperpolarizations evoked by A 23187 and ACh , but that A 23187 induced relaxation is dominated by extracellular release of H2O2 . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
The early steps of satellite cell myogenic differentiation involve MyoD activation , membrane hyperpolarization and the appearance of ACh sensitivity and gap junctional communication . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
In addition to NO , the endothelium releases an endothelium derived hyperpolarizing factor ( EDHF ) in response to acetylcholine ( ACh ) , which is particularly important in microvessels and initiates a dilation that conducts along the vessel through gap junctional communication . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
Further ACh actions include phosphorylation of the gap junction molecule connexin 43 and disruption of intercellular communication between GCs . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
In conjunction with the ACh structure , our data indicate that alignment of GABAA and ACh M 3 requires a single gap in the GABAA M 2 M3 loop . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
ACh can act on GCs to increase proliferation , disrupt gap junctional communication , alter intracellular calcium levels , as well as expression of transcription factors , suggesting an unrecognized role of ACh in GC function . ^^^
Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
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Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
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Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
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Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
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Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
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Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
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Interacting proteins: P22607 and P20936 Pubmed SVM Score :0.0
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