PD	Parkinson’s disease
SN	Substantia nigra
STR	Striatum
TH	Tyrosine hydroxylase
UPS	Ubiquitin–proteasome table system
ERS	Endoplasmic reticulum stress
UBA52	Ubiquitin-60S ribosomal protein L40
UBB	Polyubiquitin-B
UBC	Polyubiquitin-C
RPS27a	Ubiquitin-40S ribosomal protein S27a
RT-qPCR	Real-time quantitative PCR
MS	Mass spectrometry
MALDI-TOF	Matrix-assisted laser desorption ionization-time of flight
ACN	Acetonitrile
ABC	Ammonium Bicarbonate
TFA	Trifluro acetic acid
IgG:	Immunoglobulin G
PQC	Protein quality control
PFFs	Preformed fibrils
PSOPIA	Prediction server of protein–protein interaction
HSP90	Heat shock protein 90
CHIP	C-terminus of HSC-70
K48R	Lysine residue mutated to arginine at position-48 of UBA52
K63R	Lysine residue mutated to arginine at position-63 of UBA52
pJNK1	phospho- c-Jun N-terminal kinase 1
AKT1	RAC-alpha serine/threonine-protein kinase 1
PINK1	PTEN-induced kinase 1
HSP75	Heat shock protein 75