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Updated: May 25, 2025

Parallel Interrogation of β-Arrestin2 Recruitment for Ligand Screening on a GPCR-Wide Scale using PRESTO-Tango Assay
Published on: March 10, 2020
TANGO2 is an acyl-CoA binding protein.
Agustin Leonardo Lujan1, Ombretta Foresti1, Jose Wojnacki1
1Centre for Genomic Regulation (CRG), The Barcelona Institute for Science and Technology , Barcelona, Spain.
TANGO2 protein loss causes metabolic crises. Our study shows TANGO2 binds acyl-CoA in mitochondria, and mutations disrupt this, offering new therapeutic targets for TANGO2-related diseases.
Area of Science:
- Biochemistry
- Cell Biology
- Human Genetics
Background:
- TANGO2 deficiency leads to metabolic crises during high energy demand.
- TANGO2's roles in lipid metabolism and heme transport are known, but its cellular localization is unclear.
Purpose of the Study:
- To determine the cellular localization of TANGO2.
- To investigate the biochemical function of TANGO2.
- To understand the molecular basis of TANGO2-related disorders.
Main Methods:
- Immunofluorescence microscopy to determine TANGO2 localization.
- Site-directed mutagenesis to study TANGO2 function.
- Biochemical assays to assess acyl-coenzyme A binding.
Main Results:
- TANGO2 localizes to the mitochondrial lumen, mediated by a region with LIL residues.
- Mutations in LIL residues cause TANGO2 mislocalization to lipid droplets.
- TANGO2 binds acyl-coenzyme A, and mutations in the NRDE sequence impair this binding.
Conclusions:
- TANGO2 functions as an acyl-coenzyme A binding protein within mitochondria.
- Understanding TANGO2's biochemical role may lead to treatments for associated cardiomyopathies and rhabdomyolysis.
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