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PRKN

The precise function of this gene is unknown; however, the encoded protein is a component of a multiprotein E3 ubiquitin ligase complex that mediates the targeting of substrate proteins for proteasomal degradation. Mutations in this gene are known to cause Parkinson disease and autosomal recessive juvenile Parkinson disease. Alternative splicing of this gene produces multiple transcript variants encoding distinct isoforms. Additional splice variants of this gene have been described but currently lack transcript support.
Protein class

Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets

Predicted location

Intracellular

Single cell type specificity

Cell type enhanced (Distal tubular cells, Alveolar cells type 1, Proximal tubular cells, Alveolar cells type 2)

Immune cell specificity

Low immune cell specificity

Cell line specificity

Cell line enhanced (AN3-CA, HEL, HSkMC, Karpas-707)

Interaction

Forms an E3 ubiquitin ligase complex with UBE2L3 or UBE2L6 (PubMed:21532592, 11078524). Mediates 'Lys-63'-linked polyubiquitination by associating with UBE2V1. Part of a SCF-like complex, consisting of PRKN, CUL1 and FBXW7 (PubMed:12628165). Interacts with SNCAIP (PubMed:11590439, 15728840). Binds to the C2A and C2B domains of SYT11 (PubMed:12925569). Interacts and regulates the turnover of SEPTIN5 (PubMed:11078524). Part of a complex, including STUB1, HSP70 and GPR37 (PubMed:12150907). The amount of STUB1 in the complex increases during ER stress (PubMed:12150907). STUB1 promotes the dissociation of HSP70 from PRKN and GPR37, thus facilitating PRKN-mediated GPR37 ubiquitination (PubMed:12150907). HSP70 transiently associates with unfolded GPR37 and inhibits the E3 activity of PRKN, whereas, STUB1 enhances the E3 activity of PRKN through promotion of dissociation of HSP70 from PRKN-GPR37 complexes (PubMed:12150907). Interacts with PSMD4 and PACRG (PubMed:12634850, 14532270). Interacts with LRRK2 (PubMed:16352719). Interacts with RANBP2 (PubMed:16332688). Interacts with SUMO1 but not SUMO2, which promotes nuclear localization and autoubiquitination (PubMed:16955485). Interacts (via first RING-type domain) with AIMP2 (via N-terminus) (PubMed:16135753). Interacts with PSMA7 and RNF41 (PubMed:15987638, 18541373). Interacts with PINK1 (PubMed:19966284, 20798600). Forms a complex with PINK1 and PARK7 (PubMed:19229105). Interacts with CHPF, the interaction with isoform 2 may facilitate PRKN transport into the mitochondria (PubMed:22082830). Interacts with MFN2 (phosphorylated), promotes PRKN localization in dysfunctional depolarized mitochondria (PubMed:23620051). Interacts with FBXO7; this promotes translocation to dysfunctional depolarized mitochondria (PubMed:23933751). Interacts with ZNF746 (PubMed:21376232). Interacts with heat shock protein 70 family members, including HSPA1L, HSPA1A and HSPA8; interaction HSPA1L promotes translocation to damaged mitochondria (PubMed:24270810). Interacts with BAG4 and, to a lesser extent, BAG5; interaction with BAG4 inhibits translocation to damaged mitochondria (PubMed:24270810). Forms a complex with PRKN and PARK7 (PubMed:19229105). Interacts with AMBRA1 (By similarity).

Molecular function

Transferase

More Types Infomation

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