Entry
Name
Insulin signaling pathway - Pimephales promelas (fathead minnow)
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
Organism
Pimephales promelas (fathead minnow) [GN:
pprm ]
Gene
120460087 pik3r3b; LOW QUALITY PROTEIN: phosphoinositide-3-kinase, regulatory subunit 3b (gamma) [KO:K02649 ]
120460531 prkag3a; 5'-AMP-activated protein kinase subunit gamma-1 isoform X1 [KO:K07200 ]
120460828 eif4ea; eukaryotic translation initiation factor 4E-1A [KO:K03259 ]
120462750 ppp1r3da; protein phosphatase 1, regulatory subunit 3Da [KO:K07189 ]
120463317 eif4e2rs1; eukaryotic translation initiation factor 4E family member 2 related sequence 1 isoform X1 [KO:K03259 ]
120463328 pik3cd; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform [KO:K00922 ] [EC:2.7.1.153 ]
120463436 zgc:158659; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform isoform X1 [KO:K00922 ] [EC:2.7.1.153 ]
120463501 socs1b; suppressor of cytokine signaling 1b isoform X1 [KO:K04694 ]
120467212 rptor; regulatory-associated protein of mTOR isoform X1 [KO:K07204 ]
120467945 prkag1; 5'-AMP-activated protein kinase subunit gamma-1 isoform X1 [KO:K07200 ]
120468781 pik3r3a; phosphoinositide-3-kinase, regulatory subunit 3a (gamma) [KO:K02649 ]
120468926 ppp1r3ca; protein phosphatase 1, regulatory subunit 3Ca [KO:K07189 ]
120469026 prkar1ab; protein kinase, cAMP-dependent, regulatory, type I, alpha (tissue specific extinguisher 1) b [KO:K04739 ]
120469168 ppp1r3ab; uncharacterized protein ppp1r3ab isoform X1 [KO:K07189 ]
120471241 rapgef1b; rap guanine nucleotide exchange factor 1b isoform X1 [KO:K06277 ]
120471749 eif4e1b; eukaryotic translation initiation factor 4E-1B [KO:K03259 ]
120472399 pik3r1; phosphatidylinositol 3-kinase regulatory subunit alpha isoform X1 [KO:K02649 ]
120473097 prkar1b; cAMP-dependent protein kinase type I-beta regulatory subunit isoform X1 [KO:K04739 ]
120473452 ppp1r3db; protein phosphatase 1, regulatory subunit 3Db [KO:K07189 ]
120473501 prkab1b; 5'-AMP-activated protein kinase subunit beta-1b isoform X1 [KO:K07199 ]
120474505 rapgef1a; rap guanine nucleotide exchange factor 1 isoform X1 [KO:K06277 ]
120477805 ppargc1a; peroxisome proliferator-activated receptor gamma coactivator 1-alpha isoform X1 [KO:K07202 ]
120478240 inppl1a; LOW QUALITY PROTEIN: phosphatidylinositol 3,4,5-trisphosphate 5-phosphatase 2A [KO:K15909 ] [EC:3.1.3.86 ]
120478747 calm3a; calmodulin 3a (phosphorylase kinase, delta) isoform X1 [KO:K02183 ]
120479305 eif4e1c; eukaryotic translation initiation factor 4E family member 1c isoform X1 [KO:K03259 ]
120480566 pik3ca; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform [KO:K00922 ] [EC:2.7.1.153 ]
120480630 phka2; phosphorylase b kinase regulatory subunit alpha, liver isoform isoform X1 [KO:K07190 ]
120481344 zgc:77112; protein phosphatase 1 regulatory subunit 3C-B isoform X1 [KO:K07189 ]
120481551 srebf1; sterol regulatory element-binding protein 1 isoform X1 [KO:K07197 ]
120481670 prkab1a; 5'-AMP-activated protein kinase subunit beta-1a [KO:K07199 ]
120482696 prkag2b; 5'-AMP-activated protein kinase subunit gamma-1 isoform X1 [KO:K07200 ]
120482851 pik3r2; phosphatidylinositol 3-kinase regulatory subunit beta [KO:K02649 ]
120483435 si:ch211-167b20.8; uncharacterized protein si:ch211-167b20.8 isoform X1 [KO:K07189 ]
120483745 prkar2aa; protein kinase, cAMP-dependent, regulatory, type II, alpha A [KO:K04739 ]
120486485 prkar2ab; protein kinase, cAMP-dependent, regulatory, type II, alpha, B [KO:K04739 ]
120486952 prkag3b; 5'-AMP-activated protein kinase subunit gamma-3b isoform X1 [KO:K07200 ]
120488145 prkag2a; 5'-AMP-activated protein kinase subunit gamma-2a isoform X1 [KO:K07200 ]
120489254 trip10a; cdc42-interacting protein 4 homolog isoform X1 [KO:K07196 ]
120489647 prkar1aa; protein kinase, cAMP-dependent, regulatory, type I, alpha (tissue specific extinguisher 1) a [KO:K04739 ]
120490711 ppp1r3b; protein phosphatase 1 regulatory subunit 3B isoform X1 [KO:K07189 ]
120490804 eif4ebp1; eukaryotic translation initiation factor 4E-binding protein 1 [KO:K07205 ]
120491192 prkab2; 5'-AMP-activated protein kinase subunit beta-2 [KO:K07199 ]
120493186 grb2a; growth factor receptor-bound protein 2a isoform X1 [KO:K04364 ]
120494231 phkb; phosphorylase b kinase regulatory subunit beta isoform X1 [KO:K07190 ]
120495304 eif4e2; eukaryotic translation initiation factor 4E type 2 [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
pprm04070 Phosphatidylinositol signaling system
KO pathway