Protocol to detect in vitro and in cell ubiquitylation of mitochondrial DNA polymerase gamma by mitochondrial E3 ligase MITOL

Summary: Mitochondrial polymerase gamma (PolγA) is the only replicative polymerase in mitochondria. To determine PolγA ubiquitylation in cells, Flag-PolγA and MITOL are overexpressed, and subsequently the immunoprecipitated Flag-PolγA is checked for ubiquitylation. Alternately, in vitro synthesized...

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Main Authors: Mansoor Hussain, Shabnam Saifi, Aftab Mohammed, Sagar Sengupta
Format: Article
Language:English
Published: Elsevier 2022-12-01
Series:STAR Protocols
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666166722005901
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author Mansoor Hussain
Shabnam Saifi
Aftab Mohammed
Sagar Sengupta
author_facet Mansoor Hussain
Shabnam Saifi
Aftab Mohammed
Sagar Sengupta
author_sort Mansoor Hussain
collection DOAJ
description Summary: Mitochondrial polymerase gamma (PolγA) is the only replicative polymerase in mitochondria. To determine PolγA ubiquitylation in cells, Flag-PolγA and MITOL are overexpressed, and subsequently the immunoprecipitated Flag-PolγA is checked for ubiquitylation. Alternately, in vitro synthesized PolγA and MITOL are used to determine whether PolγA is ubiquitylated. Either anti-ubiquitin or anti-Flag antibody is used to detect the ubiquitylated product. Thus, we provide a detailed, reliable, highly reproducible protocol for detecting ubiquitylation of PolγA by MITOL, both in cells and in vitro.For complete details on the use and execution of this protocol, please refer to Hussain et al. (2021). : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.
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spelling doaj.art-e418c10871a844d093073a174355ec392022-12-22T03:01:50ZengElsevierSTAR Protocols2666-16672022-12-0134101710Protocol to detect in vitro and in cell ubiquitylation of mitochondrial DNA polymerase gamma by mitochondrial E3 ligase MITOLMansoor Hussain0Shabnam Saifi1Aftab Mohammed2Sagar Sengupta3National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, IndiaNational Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, IndiaNational Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, IndiaNational Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, India; Corresponding authorSummary: Mitochondrial polymerase gamma (PolγA) is the only replicative polymerase in mitochondria. To determine PolγA ubiquitylation in cells, Flag-PolγA and MITOL are overexpressed, and subsequently the immunoprecipitated Flag-PolγA is checked for ubiquitylation. Alternately, in vitro synthesized PolγA and MITOL are used to determine whether PolγA is ubiquitylated. Either anti-ubiquitin or anti-Flag antibody is used to detect the ubiquitylated product. Thus, we provide a detailed, reliable, highly reproducible protocol for detecting ubiquitylation of PolγA by MITOL, both in cells and in vitro.For complete details on the use and execution of this protocol, please refer to Hussain et al. (2021). : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.http://www.sciencedirect.com/science/article/pii/S2666166722005901Cell biologyGeneticsMolecular biologyProtein biochemistryProtein expression and purification
spellingShingle Mansoor Hussain
Shabnam Saifi
Aftab Mohammed
Sagar Sengupta
Protocol to detect in vitro and in cell ubiquitylation of mitochondrial DNA polymerase gamma by mitochondrial E3 ligase MITOL
STAR Protocols
Cell biology
Genetics
Molecular biology
Protein biochemistry
Protein expression and purification
title Protocol to detect in vitro and in cell ubiquitylation of mitochondrial DNA polymerase gamma by mitochondrial E3 ligase MITOL
title_full Protocol to detect in vitro and in cell ubiquitylation of mitochondrial DNA polymerase gamma by mitochondrial E3 ligase MITOL
title_fullStr Protocol to detect in vitro and in cell ubiquitylation of mitochondrial DNA polymerase gamma by mitochondrial E3 ligase MITOL
title_full_unstemmed Protocol to detect in vitro and in cell ubiquitylation of mitochondrial DNA polymerase gamma by mitochondrial E3 ligase MITOL
title_short Protocol to detect in vitro and in cell ubiquitylation of mitochondrial DNA polymerase gamma by mitochondrial E3 ligase MITOL
title_sort protocol to detect in vitro and in cell ubiquitylation of mitochondrial dna polymerase gamma by mitochondrial e3 ligase mitol
topic Cell biology
Genetics
Molecular biology
Protein biochemistry
Protein expression and purification
url http://www.sciencedirect.com/science/article/pii/S2666166722005901
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