Entry
Name
Insulin signaling pathway - Vulpes vulpes (red fox)
Description
Insulin binding to its receptor results in the tyrosine phosphorylation of insulin receptor substrates (IRS) by the insulin receptor tyrosine kinase (INSR). This allows association of IRSs with the regulatory subunit of phosphoinositide 3-kinase (PI3K). PI3K activates 3-phosphoinositide-dependent protein kinase 1 (PDK1), which activates Akt, a serine kinase. Akt in turn deactivates glycogen synthase kinase 3 (GSK-3), leading to activation of glycogen synthase (GYS) and thus glycogen synthesis. Activation of Akt also results in the translocation of GLUT4 vesicles from their intracellular pool to the plasma membrane, where they allow uptake of glucose into the cell. Akt also leads to mTOR-mediated activation of protein synthesis by eIF4 and p70S6K. The translocation of GLUT4 protein is also elicited through the CAP/Cbl/TC10 pathway, once Cbl is phosphorylated by INSR.
Other signal transduction proteins interact with IRS including GRB2. GRB2 is part of the cascade including SOS, RAS, RAF and MEK that leads to activation of mitogen-activated protein kinase (MAPK) and mitogenic responses in the form of gene transcription. SHC is another substrate of INSR. When tyrosine phosphorylated, SHC associates with GRB2 and can thus activate the RAS/MAPK pathway independently of IRS-1.
Class
Organismal Systems; Endocrine system
BRITE hierarchy
Pathway map
Ortholog table
Organism
Vulpes vulpes (red fox) [GN:
vvp ]
Gene
112927496 IRS2; LOW QUALITY PROTEIN: insulin receptor substrate 2 [KO:K07187 ]
112932035 IRS4; LOW QUALITY PROTEIN: insulin receptor substrate 4 [KO:K17446 ]
112914774 phosphatidylinositol 3-kinase regulatory subunit gamma isoform X1 [KO:K02649 ]
112913170 PIK3R2; phosphatidylinositol 3-kinase regulatory subunit beta [KO:K02649 ]
112935820 PIK3R1; phosphatidylinositol 3-kinase regulatory subunit alpha isoform X1 [KO:K02649 ]
112924665 PIK3CD; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform [KO:K00922 ] [EC:2.7.1.153 ]
112926217 PIK3CA; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform [KO:K00922 ] [EC:2.7.1.153 ]
112934961 PIK3CB; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit beta isoform [KO:K00922 ] [EC:2.7.1.153 ]
112935190 PPP1CC; serine/threonine-protein phosphatase PP1-gamma catalytic subunit isoform X1 [KO:K06269 ] [EC:3.1.3.16 ]
112926511 PPP1R3E; protein phosphatase 1 regulatory subunit 3E isoform X1 [KO:K07189 ]
112907212 PPP1R3F; protein phosphatase 1 regulatory subunit 3F isoform X1 [KO:K17453 ]
112929247 PHKG2; phosphorylase b kinase gamma catalytic chain, liver/testis isoform isoform X1 [KO:K00871 ] [EC:2.7.11.19 ]
112934117 PHKG1; phosphorylase b kinase gamma catalytic chain, skeletal muscle/heart isoform isoform X1 [KO:K00871 ] [EC:2.7.11.19 ]
112907641 PHKA1; phosphorylase b kinase regulatory subunit alpha, skeletal muscle isoform isoform X1 [KO:K07190 ]
112919129 PHKA2; phosphorylase b kinase regulatory subunit alpha, liver isoform isoform X1 [KO:K07190 ]
112931643 PHKB; phosphorylase b kinase regulatory subunit beta isoform X1 [KO:K07190 ]
112911908 PRKAR2A; cAMP-dependent protein kinase type II-alpha regulatory subunit [KO:K04739 ]
112908555 PRKAR2B; cAMP-dependent protein kinase type II-beta regulatory subunit [KO:K04739 ]
112920740 PRKAR1A; cAMP-dependent protein kinase type I-alpha regulatory subunit [KO:K04739 ]
112929283 PRKAR1B; cAMP-dependent protein kinase type I-beta regulatory subunit [KO:K04739 ]
112924825 SLC2A4; solute carrier family 2, facilitated glucose transporter member 4 isoform X1 [KO:K07191 ]
112914048 SORBS1; sorbin and SH3 domain-containing protein 1 isoform X1 [KO:K06086 ]
112927996 RAPGEF1; rap guanine nucleotide exchange factor 1 isoform X1 [KO:K06277 ]
112924964 SREBF1; sterol regulatory element-binding protein 1 isoform X1 [KO:K07197 ]
112907666 PRKAB2; 5'-AMP-activated protein kinase subunit beta-2 isoform X1 [KO:K07199 ]
112932888 PRKAB1; 5'-AMP-activated protein kinase subunit beta-1 [KO:K07199 ]
112916245 PRKAG2; 5'-AMP-activated protein kinase subunit gamma-2 [KO:K07200 ]
112922478 PRKAG3; 5'-AMP-activated protein kinase subunit gamma-3 [KO:K07200 ]
112921100 PRKAG1; 5'-AMP-activated protein kinase subunit gamma-1 isoform X1 [KO:K07200 ]
112918943 PPARGC1A; peroxisome proliferator-activated receptor gamma coactivator 1-alpha isoform X1 [KO:K07202 ]
112920880 RPTOR; regulatory-associated protein of mTOR isoform X1 [KO:K07204 ]
112916127 EIF4EBP1; eukaryotic translation initiation factor 4E-binding protein 1 [KO:K07205 ]
112927950 EIF4E1B; eukaryotic translation initiation factor 4E type 1B [KO:K03259 ]
112928517 eukaryotic translation initiation factor 4E type 2-like isoform X1 [KO:K03259 ]
112925497 EIF4E2; eukaryotic translation initiation factor 4E type 2 isoform X1 [KO:K03259 ]
112932657 EIF4E; eukaryotic translation initiation factor 4E isoform X1 [KO:K03259 ]
Compound
C05981 Phosphatidylinositol-3,4,5-trisphosphate
Reference
Authors
Ogawa W, Kasuga M.
Title
[Mechanism of insulin action and diabetes mellitus]
Journal
Seikagaku 75:1332-44 (2003)
Reference
Authors
Bevan P.
Title
Insulin signalling.
Journal
J Cell Sci 114:1429-30 (2001)
Reference
Authors
Kanzaki M, Pessin JE.
Title
Insulin signaling: GLUT4 vesicles exit via the exocyst.
Journal
Reference
Authors
Moodie SA, Alleman-Sposeto J, Gustafson TA.
Title
Identification of the APS protein as a novel insulin receptor substrate.
Journal
Reference
Authors
Gual P, Le Marchand-Brustel Y, Tanti JF.
Title
Positive and negative regulation of insulin signaling through IRS-1 phosphorylation.
Journal
Reference
Authors
Le Good JA, Ziegler WH, Parekh DB, Alessi DR, Cohen P, Parker PJ.
Title
Protein kinase C isotypes controlled by phosphoinositide 3-kinase through the protein kinase PDK1.
Journal
Reference
Authors
Saltiel AR, Kahn CR.
Title
Insulin signalling and the regulation of glucose and lipid metabolism.
Journal
Reference
Authors
Inoki K, Corradetti MN, Guan KL.
Title
Dysregulation of the TSC-mTOR pathway in human disease.
Journal
Reference
Authors
Ruggero D, Sonenberg N.
Title
The Akt of translational control.
Journal
Reference
Authors
Nave BT, Ouwens M, Withers DJ, Alessi DR, Shepherd PR.
Title
Mammalian target of rapamycin is a direct target for protein kinase B: identification of a convergence point for opposing effects of insulin and amino-acid deficiency on protein translation.
Journal
Reference
Authors
Pullen N, Dennis PB, Andjelkovic M, Dufner A, Kozma SC, Hemmings BA, Thomas G.
Title
Phosphorylation and activation of p70s6k by PDK1.
Journal
Reference
Authors
Ogawa W, Matozaki T, Kasuga M.
Title
Role of binding proteins to IRS-1 in insulin signalling.
Journal
Mol Cell Biochem 182:13-22 (1998)
Reference
Authors
Ceresa BP, Pessin JE.
Title
Insulin regulation of the Ras activation/inactivation cycle.
Journal
Mol Cell Biochem 182:23-9 (1998)
Reference
Authors
Pollak MN, Schernhammer ES, Hankinson SE.
Title
Insulin-like growth factors and neoplasia.
Journal
Reference
Authors
Datta SR, Dudek H, Tao X, Masters S, Fu H, Gotoh Y, Greenberg ME.
Title
Akt phosphorylation of BAD couples survival signals to the cell-intrinsic death machinery.
Journal
Reference
Authors
Ferre P, Foufelle F
Title
SREBP-1c transcription factor and lipid homeostasis: clinical perspective.
Journal
Reference
Authors
Raghow R, Yellaturu C, Deng X, Park EA, Elam MB
Title
SREBPs: the crossroads of physiological and pathological lipid homeostasis.
Journal
Reference
Authors
Clement S, Krause U, Desmedt F, Tanti JF, Behrends J, Pesesse X, Sasaki T, Penninger J, Doherty M, Malaisse W, Dumont JE, Le Marchand-Brustel Y, Erneux C, Hue L, Schurmans S
Title
The lipid phosphatase SHIP2 controls insulin sensitivity.
Journal
Reference
Authors
Backers K, Blero D, Paternotte N, Zhang J, Erneux C
Title
The termination of PI3K signalling by SHIP1 and SHIP2 inositol 5-phosphatases.
Journal
Related pathway
vvp04070 Phosphatidylinositol signaling system
KO pathway
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