| Reactivity | ISpecies Glossary |
| Applications | Bioactivity |
| Format | Carrier-Free |
| Additional Information | Will be discontinued when existing inventory is gone. |
| Details of Functionality | Reaction conditions will need to be optimized for each specific application. We recommend an initial PINK1 concentration of 0.5-2 µM for the phosphorylation of recombinant Parkin, Ubiquitin, or Polyubiquitin chains. |
| Source | E. coli-derived p. humanus PINK1 protein Trp129 - Asn575 with a N-terminal GST tag |
| Accession # | |
| Protein/Peptide Type | Recombinant Enzymes |
| Purity | >85%, by SDS-PAGE under reducing conditions and visualized by Colloidal Coomassie® Blue stain. |
| Dilutions |
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| Theoretical MW | 80 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors. |
| Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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| Buffer | Supplied as a solution in HEPES, NaCl, Glycerol and TCEP. |
| Purity | >85%, by SDS-PAGE under reducing conditions and visualized by Colloidal Coomassie® Blue stain. |
Serine/Threonine kinase PINK1 (PTEN-induced putative kinase protein 1) plays a critical role in preventing mitochondrial dysfunction during cellular stress. PINK is translated in the cytosol, then translocated to the outer mitochondrial membrane where it is rapidly cleaved and degraded as a part of normal mitochondrial function. In damaged (depolarized) mitochondria PINK becomes stabilized and accumulates, resulting in the subsequent phosphorylation of numerous proteins on the mitochondrial surface including Mfn2. Ultimately PARK2 (E3 Ubiquitin Ligase Parkin) is recruited to the damaged mitochondria where it is activated by 1) PINK-mediated phosphorylation of PARK2 at serine 65, and 2) PARK2 interaction with phosphorylated Ubiquitin (also phosphorylated by PINK on serine 65). This signaling cascade is critical for clearing the damaged mitochondria via selective autophagy (mitophagy) by mediating activation and translocation of PARK2. Recombinant human PINK1 is not active in vitro, while this protein from the Human Body Louse (Pediculus humanus) effectively phosphorylates recombinant Parkin, mono-Ubiquitin, and poly-Ubiquitin chains.
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Understanding Mitophagy Mechanisms: Canonical PINK1/Parkin, LC3-Dependent Piecemeal, and LC3-Independent Mitochondrial Derived Vesicles By Christina Towers, PhD What is Mitophagy?The selective degradation of mitochondria via double membrane autophagosome vesicles is called mitophagy. Damaged mitochondria can generate harmful amounts of reactive ox... Read full blog post. |
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New Players in the Mitophagy Game By Christina Towers, PhD Mitochondrial turn over via the lysosome, otherwise known as mitophagy, involves engulfment of mitochondria into double membrane autophagosomes and subsequent fusion with lysosomes. Much is al... Read full blog post. |
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Losing memory: Toxicity from mutant APP and amyloid beta explain the hippocampal neuronal damage in Alzheimer's disease By Jamshed Arslan Pharm.D. Alzheimer's disease (AD) is an irreversible brain disorder that destroys memory and thinking skills. The telltale signs of AD brains are extracellular deposits of amy... Read full blog post. |
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There's an autophagy for that! By Christina Towers, PhDA critical mechanism that cells use to generate nutrients and fuel metabolism is through a process called autophagy. This process is complex and involves over 20 different proteins, most of which are highly conserved acro... Read full blog post. |
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The role of Parkin and autophagy in retinal pigment epithelial cell (RPE) degradation The root of Parkinson’s disease (PD) points to a poorly regulated electron transport chain leading to mitochondrial damage, where many proteins need to work cohesively to ensure proper function. The two key players of this pathway are PINK1, ... Read full blog post. |
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The identification of dopaminergic neurons using Tyrosine Hydroxylase in Parkinson's research and LRRK2 Tyrosine hydroxylase (TH) is a crucial enzyme involved in the biosynthesis of dopamine, norepinephrine and epinephrine in the brain. Specifically, TH catalyzes the conversion of l-tyrosine to l-dihydroxyphenylalanine (l-dopa). The importance of t... Read full blog post. |
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Parkin - Role in Mitochondrial Quality Control and Parkinson's Disease Parkin/PARK2 is a cytosolic enzyme which gets recruited to cellular mitochondria damaged through depolarization, ROS or unfolded proteins accumulation, and exert protective effects by inducing mitophagy (mitochondrial autophagy). Parkin induces mit... Read full blog post. |
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PINK1 - performing mitochondrial quality control and protecting against Parkinson’s disease PTEN-induced putative kinase 1 (PINK1) is a serine/threonine kinase with important functions in mitochondrial quality control. Together with the Parkin protein, PINK1 is able to regulate the selective degradation of damaged mitochondria through aut... Read full blog post. |
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PINK1: All work and no fun The protein PINK1 is a mitochondrial-located serine/threonine kinase (PTK) that maintains organelle function and integrity. It not only protects organelles from cellular stress, but it also uses the selective auto-phagocytosis process for cleaning and... Read full blog post. |
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PINK1 and its role in Parkinson's disease PINK1 (PTEN induced putative kinase 1) is a mitochondrial serine/threonine kinase which maintains mitochondrial function/integrity, provides protection against mitochondrial dysfunction during cellular stress, potentially by phosphorylating mitochondr... Read full blog post. |
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