Entry
Name
Gastric acid secretion - Desmodus rotundus (common vampire bat)
Description
Gastric acid is a key factor in normal upper gastrointestinal functions, including protein digestion and calcium and iron absorption, as well as providing some protection against bacterial infections. The principal stimulants of acid secretion at the level of the parietal cell are histamine (paracrine), gastrin (hormonal), and acetycholine (ACh; neurocrine). Stimulation of acid secretion typically involves an initial elevation of intracellular calcium and cAMP, followed by activation of protein kinase cascades, which trigger the translocation of the proton pump, H+,K+-ATPase, from cytoplasmic tubulovesicles to the apical plasma membrane and thereby H+ secretion into the stomach lumen.
Class
Organismal Systems; Digestive system
BRITE hierarchy
Pathway map
Other DBs
Organism
Desmodus rotundus (common vampire bat) [GN:
dro ]
Gene
112296671 KCNK2; potassium channel subfamily K member 2 isoform X1 [KO:K04913 ]
112298654 ATP1B1; sodium/potassium-transporting ATPase subunit beta-1 [KO:K01540 ]
112301115 ATP1B3; sodium/potassium-transporting ATPase subunit beta-3 [KO:K01540 ]
112301899 KCNJ1; ATP-sensitive inward rectifier potassium channel 1 isoform X1 [KO:K04995 ]
112303430 GNAI1; guanine nucleotide-binding protein G(i) subunit alpha-1 [KO:K04630 ]
112304118 KCNJ15; ATP-sensitive inward rectifier potassium channel 15 [KO:K05008 ]
112304122 PLCB4; 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-4 isoform X1 [KO:K05858 ] [EC:3.1.4.11 ]
112304255 PLCB1; 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-1 isoform X1 [KO:K05858 ] [EC:3.1.4.11 ]
112306861 CAMK2B; calcium/calmodulin-dependent protein kinase type II subunit beta isoform X1 [KO:K04515 ] [EC:2.7.11.17 ]
112308526 ATP1B2; sodium/potassium-transporting ATPase subunit beta-2 [KO:K01540 ]
112308768 KCNE2; potassium voltage-gated channel subfamily E member 2 [KO:K04896 ]
112309828 GNAI2; guanine nucleotide-binding protein G(i) subunit alpha-2 [KO:K04630 ]
112311437 PLCB2; 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-2 isoform X1 [KO:K05858 ] [EC:3.1.4.11 ]
112311614 KCNK10; potassium channel subfamily K member 10 isoform X1 [KO:K04920 ]
112311702 CALML4; LOW QUALITY PROTEIN: calmodulin-like protein 4 [KO:K02183 ]
112312435 CAMK2D; calcium/calmodulin-dependent protein kinase type II subunit delta isoform X1 [KO:K04515 ] [EC:2.7.11.17 ]
112312797 CCKBR; gastrin/cholecystokinin type B receptor isoform X1 [KO:K04195 ]
112313520 GNAI3; guanine nucleotide-binding protein G(k) subunit alpha [KO:K04630 ]
112314761 KCNJ10; ATP-sensitive inward rectifier potassium channel 10 [KO:K05003 ]
112317429 KCNQ1; potassium voltage-gated channel subfamily KQT member 1 [KO:K04926 ]
112318382 ITPR2; LOW QUALITY PROTEIN: inositol 1,4,5-trisphosphate receptor type 2 [KO:K04959 ]
112319561 CAMK2A; calcium/calmodulin-dependent protein kinase type II subunit alpha isoform X1 [KO:K04515 ] [EC:2.7.11.17 ]
Compound
C01245 D-myo-Inositol 1,4,5-trisphosphate
Reference
Authors
Schubert ML, Peura DA
Title
Control of gastric acid secretion in health and disease.
Journal
Reference
Authors
Urushidani T, Forte JG
Title
Signal transduction and activation of acid secretion in the parietal cell.
Journal
Reference
Authors
Yao X, Forte JG
Title
Cell biology of acid secretion by the parietal cell.
Journal
Reference
Authors
Heitzmann D, Warth R
Title
No potassium, no acid: K+ channels and gastric acid secretion.
Journal
Reference
Authors
Kopic S, Murek M, Geibel JP
Title
Revisiting the parietal cell.
Journal
Reference
Authors
Schubert ML
Title
Gastric secretion.
Journal
Reference
Authors
Konturek SJ, Konturek PC, Brzozowski T, Konturek JW, Pawlik WW
Title
From nerves and hormones to bacteria in the stomach; Nobel prize for achievements in gastrology during last century.
Journal
J Physiol Pharmacol 56:507-30 (2005)
Reference
Authors
Forte JG, Zhu L
Title
Apical recycling of the gastric parietal cell H,K-ATPase.
Journal
Reference
Authors
Szaszak M, Christian F, Rosenthal W, Klussmann E
Title
Compartmentalized cAMP signalling in regulated exocytic processes in non-neuronal cells.
Journal
Reference
Authors
Heitzmann D, Warth R
Title
Physiology and pathophysiology of potassium channels in gastrointestinal epithelia.
Journal
Reference
Authors
Heitzmann D, Grahammer F, von Hahn T, Schmitt-Graff A, Romeo E, Nitschke R, Gerlach U, Lang HJ, Verrey F, Barhanin J, Warth R
Title
Heteromeric KCNE2/KCNQ1 potassium channels in the luminal membrane of gastric parietal cells.
Journal
Reference
Authors
Seidler U, Song P, Xiao F, Riederer B, Bachmann O, Chen M
Title
Recent advances in the molecular and functional characterization of acid/base and electrolyte transporters in the basolateral membranes of gastric and duodenal epithelial cells.
Journal
Related pathway
dro04974 Protein digestion and absorption
KO pathway