Detection of ADP-Ribosylation of the Androgen Receptor Using the Recombinant Macrodomain AF1521 from Archaeoglobus Fulgidus
Overview
Authors
Affiliations
ADP-ribosylation is a posttranslational modification generated by members of the superfamily of ADP-ribosyltransferases, known as the Parp enzymes. Depending on the superfamily member, Parp enzymes can mono- or poly-ADP-ribosylate a protein substrate. Parp superfamily members confer regulation to a variety of biological processes that include cell signaling, DNA repair, transcription, and stress responses. Here, we describe biochemical methods for detection of ADP-ribose conjugated to the androgen receptor (AR) using the archaeal macrodomain, AF1521, from Archaeoglobus fulgidus. The utility of AF1521 is based on its highly selective recognition of ADP-ribose conjugated to protein. AF1521 immobilized on beads can be used to enrich for ADP-ribosylated proteins, which in our application results in recovery of ADP-ribosylated AR from prostate cancer cell extracts. We engineered tandem AF1521 macrodomains and found this improves the recovery of ADP-ribosylated AR under native conditions, and it enabled development of an assay for detection of ADP-ribosylation on blots. Thus, AF1521 can be used to query ADP-ribosylation of protein under both native and denaturing conditions. Our assays should prove useful for understanding how ADP-ribosylation regulates AR function.
Vela-Rodriguez C, Yang C, Alanen H, Eki R, Abbas T, Maksimainen M Protein Sci. 2024; 33(4):e4945.
PMID: 38511494 PMC: 10955461. DOI: 10.1002/pro.4945.
Vela-Rodriguez C, Yang C, Alanen H, Eki R, Abbas T, Maksimainen M bioRxiv. 2023; .
PMID: 38076829 PMC: 10705365. DOI: 10.1101/2023.11.29.569193.
Yang C, Wierbilowicz K, Dworak N, Bae S, Tengse S, Abianeh N Cancer Res Commun. 2023; 3(4):592-606.
PMID: 37077937 PMC: 10108886. DOI: 10.1158/2767-9764.CRC-23-0086.
Bashyal A, Brodbelt J Mass Spectrom Rev. 2022; 43(2):289-326.
PMID: 36165040 PMC: 10040477. DOI: 10.1002/mas.21811.
PARP7 mono-ADP-ribosylates the agonist conformation of the androgen receptor in the nucleus.
Kamata T, Yang C, Paschal B Biochem J. 2021; 478(15):2999-3014.
PMID: 34264286 PMC: 9482820. DOI: 10.1042/BCJ20210378.