Searching across hundreds of databases

Our searching services are busy right now. Your search will reload in five seconds.

X
Forgot Password

If you have forgotten your password you can enter your email here and get a temporary password sent to your email.

X
Forgot Password

If you have forgotten your password you can enter your email here and get a temporary password sent to your email.

IRS-1 acts as an endocytic regulator of IGF-I receptor to facilitate sustained IGF signaling.

eLife | 2018

Insulin-like growth factor-I receptor (IGF-IR) preferentially regulates the long-term IGF activities including growth and metabolism. Kinetics of ligand-dependent IGF-IR endocytosis determines how IGF induces such downstream signaling outputs. Here, we find that the insulin receptor substrate (IRS)-1 modulates how long ligand-activated IGF-IR remains at the cell surface before undergoing endocytosis in mammalian cells. IRS-1 interacts with the clathrin adaptor complex AP2. IRS-1, but not an AP2-binding-deficient mutant, delays AP2-mediated IGF-IR endocytosis after the ligand stimulation. Mechanistically, IRS-1 inhibits the recruitment of IGF-IR into clathrin-coated structures; for this reason, IGF-IR avoids rapid endocytosis and prolongs its activity on the cell surface. Accelerating IGF-IR endocytosis via IRS-1 depletion induces the shift from sustained to transient Akt activation and augments FoxO-mediated transcription. Our study establishes a new role for IRS-1 as an endocytic regulator of IGF-IR that ensures sustained IGF bioactivity, independent of its classic role as an adaptor in IGF-IR signaling.

Pubmed ID: 29661273 RIS Download

Antibodies used in this publication

Associated grants

None

Publication data is provided by the National Library of Medicine ® and PubMed ®. Data is retrieved from PubMed ® on a weekly schedule. For terms and conditions see the National Library of Medicine Terms and Conditions.

This is a list of tools and resources that we have found mentioned in this publication.


GE Healthcare (tool)

RRID:SCR_000004

A commercial antibody supplier and provider of various services.

View all literature mentions

Addgene (tool)

RRID:SCR_002037

Non-profit plasmid repository dedicated to helping scientists around the world share high-quality plasmids. Facilitates archiving and distributing DNA-based research reagents and associated data to scientists worldwide. Repository contains over 65,000 plasmids, including special collections on CRISPR, fluorescent proteins, and ready-to-use viral preparations. There is no cost for scientists to deposit plasmids, which saves time and money associated with shipping plasmids themselves. All plasmids are fully sequenced for validation and sequencing data is openly available. We handle the appropriate Material Transfer Agreements (MTA) with institutions, facilitating open exchange and offering intellectual property and liability protection for depositing scientists. Furthermore, we curate free educational resources for the scientific community including a blog, eBooks, video protocols, and detailed molecular biology resources.

View all literature mentions

FISHER (tool)

RRID:SCR_009181

THIS RESOURCE IS NO LONGER IN SERVICE, documented on February 1st, 2022. Software application for genetic analysis of classical biometric traits like blood pressure or height that are caused by a combination of polygenic inheritance and complex environmental forces. (entry from Genetic Analysis Software)

View all literature mentions

Adobe Photoshop (tool)

RRID:SCR_014199

Software for image processing, analysis, and editing. The software includes features such as touch capabilities, a customizable toolbar, 2D and 3D image merging, and Cloud access and options.

View all literature mentions

Clathrin antibody [X22] - Membrane Vesicle Marker (antibody)

RRID:AB_303256

This monoclonal targets Clathrin antibody [X22] - Membrane Vesicle Marker

View all literature mentions

AP50 (antibody)

RRID:AB_398872

This monoclonal targets AP50

View all literature mentions

Anti-PI3 Kinase, p85 (antibody)

RRID:AB_310069

This polyclonal targets PI3 Kinase p85

View all literature mentions

Anti-IRS1 (antibody)

RRID:AB_2127890

This polyclonal targets IRS1

View all literature mentions

Anti-Phosphotyrosine, 4G10 Platinum (antibody)

RRID:AB_916370

This monoclonal targets Phosphotyrosine 4G10 Platinum

View all literature mentions

ANTI-FLAG(R) M2 Affinity Gel (antibody)

RRID:AB_10063035

This unknown targets ANTI-FLAG(R) M2 Affinity Gel

View all literature mentions

Anti-Ubiquitin Antibody (P4D1) (antibody)

RRID:AB_628423

This monoclonal targets Ubiquitin

View all literature mentions

GFP (B-2) (antibody)

RRID:AB_627695

This monoclonal targets GFP (B-2)

View all literature mentions

gamma1-Adaptin (M-300) (antibody)

RRID:AB_2058329

This polyclonal targets AP1G1

View all literature mentions

HSP 90alpha/beta (H-114) (antibody)

RRID:AB_2121235

This polyclonal targets HSP90AA1, HSP90AB1, HSP90B1

View all literature mentions

p70 S6 kinase alpha (C-18) (antibody)

RRID:AB_632156

This monoclonal targets p70 S6 kinase alpha (C-18)

View all literature mentions

alpha-Adaptin 1/2 (C-8) (antibody)

RRID:AB_2274034

This monoclonal targets AP2A2

View all literature mentions

Clathrin HC (TD.1) (antibody)

RRID:AB_627263

This monoclonal targets Clathrin HC (TD.1)

View all literature mentions

IRS-2 (H-205) (antibody)

RRID:AB_2125783

This polyclonal targets IRS2

View all literature mentions

IGF-IRbeta (C-20) (antibody)

RRID:AB_671792

This unknown targets Epitope maps to carboxy terminus of IGF-!R of human origin. Specific for IGF-IRbeta, Non-reactive with IGF-Iralpha

View all literature mentions

IGF-IRalpha (N-20) (antibody)

RRID:AB_671788

This polyclonal targets IGF1R

View all literature mentions

FoxO1 (C29H4) Rabbit mAb (antibody)

RRID:AB_2106495

This monoclonal targets FoxO1 (C29H4) Rabbit mAb

View all literature mentions

Phospho-FoxO1 (Ser256) Antibody (antibody)

RRID:AB_329831

This polyclonal targets Phospho-FoxO1 (Ser256)

View all literature mentions

Phospho-FoxO1 (Thr24)/FoxO3a (Thr32) Antibody (antibody)

RRID:AB_329842

This polyclonal targets Phospho-FoxO1 (Thr24)/FoxO3a (Thr32)

View all literature mentions

Phospho-p70 S6 Kinase (Thr389) (108D2) Rabbit mAb (antibody)

RRID:AB_2269803

This monoclonal targets p70 S6 Kinase, phospho (Thr389)

View all literature mentions

Phospho-Akt (Ser473) Antibody (antibody)

RRID:AB_329825

This polyclonal targets Phospho-Akt (Ser473)

View all literature mentions

Akt Antibody (antibody)

RRID:AB_329827

This polyclonal targets Akt

View all literature mentions

IGF-I Receptor (D23H3) XP Rabbit mAb (antibody)

RRID:AB_10950969

This monoclonal targets IGF-I Receptor (D23H3) XP Rabbit mAb

View all literature mentions

Phospho-IGF-I Receptor (Tyr1316) Antibody (antibody)

RRID:AB_10545762

This polyclonal targets Phospho-IGF-I Receptor (Tyr1316)

View all literature mentions

Phospho-IGF-I Receptor beta (Tyr1131)/Insulin Receptor beta (Tyr1146) Antibody (antibody)

RRID:AB_331578

This polyclonal targets Phospho-IGF-I Receptor beta (Tyr1131)/Insulin Receptor beta (Tyr1146)

View all literature mentions

PyMOL (software resource)

RRID:SCR_000305

A user-sponsored molecular visualization software system on an open-source foundation. The software has the capabilities to view, render, animate, export, present and develop three dimensional molecular structures.

View all literature mentions

Coot (software resource)

RRID:SCR_014222

Software for macromolecular model building, model completion and validation, and protein modelling using X-ray data. Coot displays maps and models and allows model manipulations such as idealization, rigid-body fitting, ligand search, Ramachandran plots, non-crystallographic symmetry and more. Source code is available.

View all literature mentions

Phenix (software resource)

RRID:SCR_014224

A Python-based software suite for the automated determination of molecular structures using X-ray crystallography and other methods. Phenix includes programs for assessing data quality, experimental phasing, molecular replacement, model building, structure refinement, and validation. It also includes tools for reflection data and creating maps and models. Phenix can also be used for neutron crystallography. Tutorials and examples are available in the documentation tab.

View all literature mentions

Refmac (software resource)

RRID:SCR_014225

A molecular refinement program with two main modes: REVIEW, which checks and updates the input model to establish that the geometric restraints can be properly set up, and REFINE mode, which is the standard mode and documented in keywords. In REVIEW users can: check model coordinates and write an extended output set of coordinates, find disulphide bonds and other covalent links, cis-peptides, output the sequence and REMARK records. In REFINEMENT mode users can carry out rigid body, tls, restrained or unrestrained refinement against Xray data, or idealisation of a macromolecular structure. Also in REFINEMENT mode, Refmac produces an MTZ output file containing weighted coefficients for SigmaA weighted mFo-DFcalc and 2mFo-DFcalc maps. The program is supported by CCP4.

View all literature mentions

CCP4 (software resource)

RRID:SCR_007255

Portal for Macromolecular X-Ray Crystallography to produce and support an integrated suite of programs that allows researchers to determine macromolecular structures by X-ray crystallography, and other biophysical techniques. Used in the education and training of scientists in experimental structural biology for determination and analysis of protein structure.

View all literature mentions

Fiji (software resource)

RRID:SCR_002285

Software package as distribution of ImageJ and ImageJ2 together with Java, Java3D and plugins organized into coherent menu structure. Used to assist research in life sciences.

View all literature mentions

Plat-E (cell line)

RRID:CVCL_B488

Cell line Plat-E is a Transformed cell line with a species of origin Homo sapiens (Human)

View all literature mentions

HEK293T (cell line)

RRID:CVCL_0063

Cell line HEK293T is a Transformed cell line with a species of origin Homo sapiens (Human)

View all literature mentions

L6 (cell line)

RRID:CVCL_0385

Cell line L6 is a Transformed cell line with a species of origin Rattus norvegicus

View all literature mentions