Dataset to delineate changes in association between Akt1 and its interacting partners as a function of active state

Nutan Gupta1, Shweta Duggal1, Noor Jailkhani1

  • 1International Centre for Genetic Engineering and Biotechnology (ICGEB), Aruna Asif Ali Marg, New Delhi 110067, India.

Data in Brief
|June 13, 2017
PubMed

Insights

This study explored the dynamic Akt1 interactome by comparing its native state to its inhibited form using SILAC and AP-MS. Findings reveal how Akt1 protein interactions change upon inhibition, offering insights for targeted cancer therapies.

Area of Science:

  • Molecular Biology
  • Proteomics
  • Cancer Research

Background:

  • The protein kinase Akt1 plays a crucial role in cell survival and is implicated in various human solid tumors.
  • Targeted therapies focusing on Akt1 are under development due to its significance in cancer progression.
  • Understanding the dynamic interactions of Akt1 is essential for comprehending its functional diversity and developing effective treatments.

Purpose of the Study:

  • To investigate the dynamic changes in the Akt1 interactome in response to its active state.
  • To delineate how Akt1 protein associations are altered upon inhibition of its active form.
  • To provide novel insights into the context-dependent nature of the Akt1 interactome.

Main Methods:

  • Utilized SILAC (Stable Isotope Labeling by Amino acids in Cell culture) for quantitative proteomic analysis.
  • Employed Affinity Purification coupled to Mass Spectrometry (AP-MS) to identify Akt1 interacting proteins.
  • Compared the Akt1 interactome in untreated HEK293 cells (light labeled) with cells treated with the allosteric inhibitor MK-2206 (heavy labeled).

Main Results:

  • Identified dynamic changes in protein associations with Akt1 based on its activation state.
  • Quantitatively assessed alterations in the Akt1 interactome upon inhibition with MK-2206.
  • Revealed context-specific interaction profiles of Akt1.

Conclusions:

  • The study provides a dynamic view of the Akt1 interactome, highlighting its context-dependent nature.
  • Understanding these dynamic interactome shifts can inform the development of targeted Akt1-based cancer therapies.
  • The findings contribute to a deeper comprehension of Akt1 signaling in cancer.

Related Concept Videos

Protein Networks02:26

Protein Networks

An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
4.6K
PI3K/mTOR/AKT Signaling Pathway01:22

PI3K/mTOR/AKT Signaling Pathway

The mammalian target of rapamycin  (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1  (mTORC1) and mTOR complex 2  (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast,  mTORC2 consists of a...
5.9K
The JAK-STAT Signaling Pathway01:20

The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
13.4K
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
4.9K
MAPK Signaling Cascades01:07

MAPK Signaling Cascades

Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
8.8K