Entry
Name
Insulin signaling pathway - Micropterus salmoides (largemouth bass)
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
Micropterus salmoides (largemouth bass) [GN:
msam ]
Gene
119882859 calm3a; calmodulin 3a (phosphorylase kinase, delta) isoform X1 [KO:K02183 ]
119883088 pik3cb; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit beta isoform [KO:K00922 ] [EC:2.7.1.153 ]
119885702 prkag1; 5'-AMP-activated protein kinase subunit gamma-1 [KO:K07200 ]
119886240 prkar2ab; protein kinase, cAMP-dependent, regulatory, type II, alpha, B [KO:K04739 ]
119888264 eif4ea; eukaryotic translation initiation factor 4E-1A isoform X1 [KO:K03259 ]
119889675 prkar1b; cAMP-dependent protein kinase type I-beta regulatory subunit isoform X1 [KO:K04739 ]
119890292 phkb; phosphorylase b kinase regulatory subunit beta isoform X1 [KO:K07190 ]
119890430 phka2; phosphorylase b kinase regulatory subunit alpha, liver isoform isoform X1 [KO:K07190 ]
119891161 trip10a; cdc42-interacting protein 4 homolog isoform X1 [KO:K07196 ]
119892213 prkab1b; 5'-AMP-activated protein kinase subunit beta-1b [KO:K07199 ]
119892320 zgc:77112; protein phosphatase 1 regulatory subunit 3C [KO:K07189 ]
119894416 ppp1r3ab; protein phosphatase 1 regulatory subunit 3A [KO:K07189 ]
119896511 prkacaa; protein kinase, cAMP-dependent, catalytic, alpha, genome duplicate a isoform X1 [KO:K04345 ] [EC:2.7.11.11 ]
119899739 rptor; regulatory-associated protein of mTOR isoform X1 [KO:K07204 ]
119900224 pik3r3b; phosphoinositide-3-kinase, regulatory subunit 3b (gamma) isoform X1 [KO:K02649 ]
119900881 map2k2a; LOW QUALITY PROTEIN: dual specificity mitogen-activated protein kinase kinase 2a [KO:K04369 ] [EC:2.7.12.2 ]
119902234 pik3r2; phosphatidylinositol 3-kinase regulatory subunit beta isoform X1 [KO:K02649 ]
119902696 prkag3a; 5'-AMP-activated protein kinase subunit gamma-1 isoform X1 [KO:K07200 ]
119902876 eif4e2; eukaryotic translation initiation factor 4E type 2 isoform X1 [KO:K03259 ]
119902893 prkab2; 5'-AMP-activated protein kinase subunit beta-2 isoform X1 [KO:K07199 ]
119904537 prkag3b; 5'-AMP-activated protein kinase subunit gamma-3b isoform X1 [KO:K07200 ]
119905054 elk1; LOW QUALITY PROTEIN: ETS domain-containing protein Elk-1 [KO:K04375 ]
119905339 si:ch211-167b20.8; protein phosphatase 1 regulatory subunit 3A isoform X1 [KO:K07189 ]
119905617 pik3cd; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform [KO:K00922 ] [EC:2.7.1.153 ]
119905717 prkar2aa; protein kinase, cAMP-dependent, regulatory, type II, alpha A [KO:K04739 ]
119905755 ppp1r3da; protein phosphatase 1, regulatory subunit 3Da [KO:K07189 ]
119910882 eif4eb; LOW QUALITY PROTEIN: eukaryotic translation initiation factor 4eb [KO:K03259 ]
119911743 badb; BCL2 associated agonist of cell death b isoform X1 [KO:K02158 ]
119912374 eif4e2rs1; eukaryotic translation initiation factor 4E family member 2 related sequence 1 [KO:K03259 ]
119912407 zgc:158659; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform [KO:K00922 ] [EC:2.7.1.153 ]
119912463 ppargc1a; peroxisome proliferator-activated receptor gamma coactivator 1-alpha isoform X1 [KO:K07202 ]
119912584 phka1a; phosphorylase b kinase regulatory subunit alpha, skeletal muscle isoform isoform X1 [KO:K07190 ]
119914041 pik3r1; phosphatidylinositol 3-kinase regulatory subunit alpha isoform X1 [KO:K02649 ]
119914123 rapgef1b; LOW QUALITY PROTEIN: rap guanine nucleotide exchange factor 1b [KO:K06277 ]
119914299 prkab1a; 5'-AMP-activated protein kinase subunit beta-1a [KO:K07199 ]
119915070 si:dkey-242g16.2; protein phosphatase 1 regulatory subunit 3C [KO:K07189 ]
119917366 eif4e1c; eukaryotic translation initiation factor 4E family member 1c isoform X1 [KO:K03259 ]
119918148 ppp1r3aa; uncharacterized protein ppp1r3aa isoform X1 [KO:K07189 ]
119918757 prkar1aa; protein kinase, cAMP-dependent, regulatory, type I, alpha (tissue specific extinguisher 1) a isoform X1 [KO:K04739 ]
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
msam04070 Phosphatidylinositol signaling system
KO pathway