Entry
Name
Calcium signaling pathway - Electrophorus electricus (electric eel)
Description
Ca2+ that enters the cell from the outside is a principal source of signal Ca2+. Entry of Ca2+ is driven by the presence of a large electrochemical gradient across the plasma membrane. Cells use this external source of signal Ca2+ by activating various entry channels with widely different properties. The voltage-operated channels (VOCs) are found in excitable cells and generate the rapid Ca2+ fluxes that control fast cellular processes. There are many other Ca2+-entry channels, such as the receptor-operated channels (ROCs), for example the NMDA (N-methyl-D-aspartate) receptors (NMDARs) that respond to glutamate. There also are second-messenger-operated channels (SMOCs) and store-operated channels (SOCs).
The other principal source of Ca2+ for signalling is the internal stores that are located primarily in the endoplasmic/sarcoplasmic reticulum (ER/SR), in which inositol-1,4,5-trisphosphate receptors (IP3Rs) or ryanodine receptors (RYRs) regulate the release of Ca2+. The principal activator of these channels is Ca2+ itself and this process of Ca2+-induced Ca2+ release is central to the mechanism of Ca2+ signalling. Various second messengers or modulators also control the release of Ca2+. IP3, which is generated by pathways using different isoforms of phospholipase C (PLCbeta, delta, epsilon, gamma and zeta), regulates the IP3Rs. Cyclic ADP-ribose (cADPR) releases Ca2+ via RYRs. Nicotinic acid adenine dinucleotide phosphate (NAADP) may activate a distinct Ca2+ release mechanism on separate acidic Ca2+ stores. Ca2+ release via the NAADP-sensitive mechanism may also feedback onto either RYRs or IP3Rs. cADPR and NAADP are generated by CD38. This enzyme might be sensitive to the cellular metabolism, as ATP and NADH inhibit it.
The influx of Ca2+ from the environment or release from internal stores causes a very rapid and dramatic increase in cytoplasmic calcium concentration, which has been widely exploited for signal transduction. Some proteins, such as troponin C (TnC) involved in muscle contraction, directly bind to and sense Ca2+. However, in other cases Ca2+ is sensed through intermediate calcium sensors such as calmodulin (CALM).
Class
Environmental Information Processing; Signal transduction
BRITE hierarchy
Pathway map
Ortholog table
Other DBs
Organism
Electrophorus electricus (electric eel) [GN:
eee ]
Gene
113582475 adrb3; LOW QUALITY PROTEIN: beta-3 adrenergic receptor [KO:K04143 ]
113578990 LOW QUALITY PROTEIN: 5-hydroxytryptamine receptor 4-like [KO:K04160 ]
113588539 LOW QUALITY PROTEIN: 5-hydroxytryptamine receptor 7-like [KO:K04163 ]
113577854 gnas; guanine nucleotide-binding protein G(s) subunit alpha isoform X1 [KO:K04632 ]
113578881 guanine nucleotide-binding protein G(s) subunit alpha [KO:K04632 ]
113582412 gnal; guanine nucleotide-binding protein G(olf) subunit alpha [KO:K04633 ]
113581643 guanine nucleotide-binding protein G(olf) subunit alpha [KO:K04633 ]
113590848 sarcoplasmic reticulum histidine-rich calcium-binding protein-like [KO:K23450 ]
113567671 orai1; calcium release-activated calcium channel protein 1 [KO:K16056 ]
113576556 voltage-dependent L-type calcium channel subunit alpha-1C-like isoform X1 [KO:K04850 ]
113580442 cacna1d; LOW QUALITY PROTEIN: voltage-dependent L-type calcium channel subunit alpha-1D [KO:K04851 ]
113579158 voltage-dependent L-type calcium channel subunit alpha-1D-like isoform X1 [KO:K04851 ]
113579098 voltage-dependent L-type calcium channel subunit alpha-1D-like [KO:K04853 ]
113578747 cacna1f; voltage-dependent L-type calcium channel subunit alpha-1F [KO:K04853 ]
113586976 cacna1s; voltage-dependent L-type calcium channel subunit alpha-1S isoform X1 [KO:K04857 ]
113581084 dihydropyridine-sensitive L-type skeletal muscle calcium channel subunit alpha-1-like [KO:K04857 ]
113586749 LOW QUALITY PROTEIN: voltage-dependent P/Q-type calcium channel subunit alpha-1A-like [KO:K04344 ]
113568055 voltage-dependent P/Q-type calcium channel subunit alpha-1A-like [KO:K04344 ]
113573427 voltage-dependent N-type calcium channel subunit alpha-1B-like [KO:K04849 ]
113577940 voltage-dependent N-type calcium channel subunit alpha-1B-like [KO:K04849 ]
113589212 voltage-dependent R-type calcium channel subunit alpha-1E-like [KO:K04852 ]
113580060 voltage-dependent R-type calcium channel subunit alpha-1E-like [KO:K04852 ]
113583212 cacna1g; voltage-dependent T-type calcium channel subunit alpha-1G isoform X1 [KO:K04854 ]
113584941 cacna1h; voltage-dependent T-type calcium channel subunit alpha-1H isoform X1 [KO:K04855 ]
113572852 voltage-dependent T-type calcium channel subunit alpha-1I-like [KO:K04856 ]
113580342 LOW QUALITY PROTEIN: voltage-dependent T-type calcium channel subunit alpha-1I-like [KO:K04856 ]
113572604 LOW QUALITY PROTEIN: neuronal acetylcholine receptor subunit alpha-7-like [KO:K04809 ]
113577807 neuronal acetylcholine receptor subunit alpha-7-like isoform X1 [KO:K04809 ]
113577933 LOW QUALITY PROTEIN: glutamate receptor ionotropic, NMDA 1-like [KO:K05208 ]
113573772 glutamate receptor ionotropic, NMDA 1-like isoform X1 [KO:K05208 ]
113580928 glutamate receptor ionotropic, NMDA 2A-like isoform X1 [KO:K05209 ]
113573251 glutamate receptor ionotropic, NMDA 2C-like isoform X1 [KO:K05211 ]
113570691 LOW QUALITY PROTEIN: glutamate receptor ionotropic, NMDA 2D-like [KO:K05212 ]
113576462 glutamate receptor ionotropic, NMDA 3B-like isoform X1 [KO:K05214 ]
113585741 htr2b; LOW QUALITY PROTEIN: 5-hydroxytryptamine receptor 2B [KO:K04157 ]
113586267 trhr; LOW QUALITY PROTEIN: thyrotropin-releasing hormone receptor [KO:K04282 ]
113583295 thyrotropin-releasing hormone receptor-like isoform X1 [KO:K04282 ]
113586947 guanine nucleotide-binding protein G(q) subunit alpha isoform X1 [KO:K04634 ]
113586948 guanine nucleotide-binding protein subunit alpha-11-like [KO:K04634 ]
113583372 guanine nucleotide-binding protein subunit alpha-11 isoform X1 [KO:K04635 ]
113591267 guanine nucleotide-binding protein G(q) subunit alpha-like [KO:K04635 ]
113588175 guanine nucleotide-binding protein subunit alpha-14-like [KO:K04636 ]
113591269 guanine nucleotide-binding protein subunit alpha-11-like [KO:K04637 ]
113576794 pdgfa; platelet-derived growth factor subunit A isoform X1 [KO:K04359 ]
113578091 fgf23; LOW QUALITY PROTEIN: fibroblast growth factor 23 [KO:K22428 ]
113578092 vegfa; vascular endothelial growth factor A isoform X1 [KO:K05448 ]
113581223 plcd1; 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase delta-1 isoform X1 [KO:K05857 ] [EC:3.1.4.11 ]
113588890 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase delta-3-A-like isoform X1 [KO:K05857 ] [EC:3.1.4.11 ]
113589181 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-1-like isoform X1 [KO:K05858 ] [EC:3.1.4.11 ]
113571600 LOW QUALITY PROTEIN: 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-3-like [KO:K05858 ] [EC:3.1.4.11 ]
113572657 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-1-like isoform X1 [KO:K05858 ] [EC:3.1.4.11 ]
113589466 plcb4; 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-4 isoform X1 [KO:K05858 ] [EC:3.1.4.11 ]
113577174 plcg2; 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase gamma-2 isoform X1 [KO:K05859 ] [EC:3.1.4.11 ]
113584760 plce1; 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase epsilon-1 isoform X1 [KO:K05860 ] [EC:3.1.4.11 ]
113575990 LOW QUALITY PROTEIN: inositol 1,4,5-trisphosphate receptor type 1-like [KO:K04958 ]
113591062 LOW QUALITY PROTEIN: two pore calcium channel protein 1-like [KO:K16896 ]
113578039 vdac1; voltage-dependent anion-selective channel protein 1 [KO:K05862 ]
113576328 voltage-dependent anion-selective channel protein 2-like [KO:K15040 ]
113584917 voltage-dependent anion-selective channel protein 2-like isoform X1 [KO:K15041 ]
113591667 voltage-dependent anion-selective channel protein 2-like [KO:K15041 ]
113582010 troponin C, slow skeletal and cardiac muscles-like isoform X1 [KO:K05865 ]
113573644 phkg1; phosphorylase b kinase gamma catalytic chain, skeletal muscle/heart isoform isoform X1 [KO:K00871 ] [EC:2.7.11.19 ]
113568700 phka2; phosphorylase b kinase regulatory subunit alpha, liver isoform isoform X1 [KO:K07190 ]
113579823 phosphorylase b kinase regulatory subunit alpha, skeletal muscle isoform-like isoform X1 [KO:K07190 ]
113587439 camk2a; calcium/calmodulin-dependent protein kinase type II subunit alpha isoform X1 [KO:K04515 ] [EC:2.7.11.17 ]
113572944 LOW QUALITY PROTEIN: calcium/calmodulin-dependent protein kinase type II subunit beta-like [KO:K04515 ] [EC:2.7.11.17 ]
113583472 camk2b; calcium/calmodulin-dependent protein kinase type II subunit beta isoform X1 [KO:K04515 ] [EC:2.7.11.17 ]
113581750 serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform-like isoform X1 [KO:K04348 ] [EC:3.1.3.16 ]
113577345 ppp3ca; serine/threonine-protein phosphatase 2B catalytic subunit alpha isoform isoform X1 [KO:K04348 ] [EC:3.1.3.16 ]
113581708 LOW QUALITY PROTEIN: nuclear factor of activated T-cells, cytoplasmic 1-like [KO:K04446 ]
113583287 nfatc1; nuclear factor of activated T-cells, cytoplasmic 1 [KO:K04446 ]
113576315 nfatc2; nuclear factor of activated T-cells, cytoplasmic 2 [KO:K17332 ]
113571665 nuclear factor of activated T-cells, cytoplasmic 2-like isoform X1 [KO:K17332 ]
113573155 nuclear factor of activated T-cells, cytoplasmic 3-like isoform X1 [KO:K17333 ]
113587328 nuclear factor of activated T-cells, cytoplasmic 3-like [KO:K17333 ]
113584133 nfatc4; nuclear factor of activated T-cells, cytoplasmic 4 [KO:K17334 ]
113585089 pde1a; calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A isoform X1 [KO:K13755 ] [EC:3.1.4.17 ]
113580669 pde1c; calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1C [KO:K13755 ] [EC:3.1.4.17 ]
Compound
C01245 D-myo-Inositol 1,4,5-trisphosphate
C06124 Sphingosine 1-phosphate
C11556 1-Phosphatidyl-1D-myo-inositol 3,5-bisphosphate
C13051 Nicotinic acid adenine dinucleotide phosphate
Reference
Authors
Berridge MJ, Bootman MD, Roderick HL.
Title
Calcium signalling: dynamics, homeostasis and remodelling.
Journal
Reference
Authors
Berridge MJ, Lipp P, Bootman MD.
Title
The versatility and universality of calcium signalling.
Journal
Reference
Authors
Wang MC, Dolphin A, Kitmitto A.
Title
L-type voltage-gated calcium channels: understanding function through structure.
Journal
Reference
Authors
Ferrier GR, Howlett SE.
Title
Cardiac excitation-contraction coupling: role of membrane potential in regulation of contraction.
Journal
Reference
Authors
Keef KD, Hume JR, Zhong J.
Title
Regulation of cardiac and smooth muscle Ca(2+) channels (Ca(V)1.2a,b) by protein kinases.
Journal
Reference
Authors
Hell JW, Appleyard SM, Yokoyama CT, Warner C, Catterall WA.
Title
Differential phosphorylation of two size forms of the N-type calcium channel alpha 1 subunit which have different COOH termini.
Journal
J Biol Chem 269:7390-6 (1994)
Reference
Authors
Yunker AM.
Title
Modulation and pharmacology of low voltage-activated ("T-Type") calcium channels.
Journal
Reference
Authors
Yakel JL.
Title
Calcineurin regulation of synaptic function: from ion channels to transmitter release and gene transcription.
Journal
Reference
Authors
Fukunaga K, Miyamoto E.
Title
A working model of CaM kinase II activity in hippocampal long-term potentiation and memory.
Journal
Reference
Authors
Della Rocca GJ, van Biesen T, Daaka Y, Luttrell DK, Luttrell LM, Lefkowitz RJ.
Title
Ras-dependent mitogen-activated protein kinase activation by G protein-coupled receptors. Convergence of Gi- and Gq-mediated pathways on calcium/calmodulin, Pyk2, and Src kinase.
Journal
Reference
Authors
Furuichi T, Mikoshiba K.
Title
Inositol 1, 4, 5-trisphosphate receptor-mediated Ca2+ signaling in the brain.
Journal
Reference
Authors
Bruce JI, Straub SV, Yule DI.
Title
Crosstalk between cAMP and Ca2+ signaling in non-excitable cells.
Journal
Reference
Authors
Lee HC, Munshi C, Graeff R.
Title
Structures and activities of cyclic ADP-ribose, NAADP and their metabolic enzymes.
Journal
Reference
Authors
Crompton M.
Title
Mitochondrial intermembrane junctional complexes and their role in cell death.
Journal
Reference
Authors
Grewal SS, York RD, Stork PJ.
Title
Extracellular-signal-regulated kinase signalling in neurons.
Journal
Reference
Authors
Trushin SA, Pennington KN, Carmona EM, Asin S, Savoy DN, Billadeau DD, Paya CV.
Title
Protein kinase Calpha (PKCalpha) acts upstream of PKCtheta to activate IkappaB kinase and NF-kappaB in T lymphocytes.
Journal
Reference
Authors
Hutchins JR, Dikovskaya D, Clarke PR.
Title
Regulation of Cdc2/cyclin B activation in Xenopus egg extracts via inhibitory phosphorylation of Cdc25C phosphatase by Ca(2+)/calmodulin-dependent protein [corrected] kinase II.
Journal
Reference
Authors
Tornquist K
Title
Sphingosine 1-phosphate, sphingosine kinase and autocrine calcium signalling in thyroid cells.
Journal
Reference
Authors
Feske S
Title
Immunodeficiency due to defects in store-operated calcium entry.
Journal
Reference
Authors
Giachini FR, Lima VV, Hannan JL, Carneiro FS, Webb RC, Tostes RC
Title
STIM1/Orai1-mediated store-operated Ca2+ entry: the tip of the iceberg.
Journal
Reference
Authors
Baba Y, Kurosaki T
Title
[Regulation of store-operated calcium entry by STIM1].
Journal
Seikagaku 80:1123-8 (2008)
Reference
Authors
Galione A, Evans AM, Ma J, Parrington J, Arredouani A, Cheng X, Zhu MX
Title
The acid test: the discovery of two-pore channels (TPCs) as NAADP-gated endolysosomal Ca(2+) release channels.
Journal
Reference
Authors
Beard NA, Wei L, Dulhunty AF
Title
Ca(2+) signaling in striated muscle: the elusive roles of triadin, junctin, and calsequestrin.
Journal
Reference
Authors
Marty I
Title
Triadin regulation of the ryanodine receptor complex.
Journal
Reference
Authors
Arvanitis DA, Vafiadaki E, Sanoudou D, Kranias EG
Title
Histidine-rich calcium binding protein: the new regulator of sarcoplasmic reticulum calcium cycling.
Journal
Related pathway
eee04070 Phosphatidylinositol signaling system
KO pathway
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