Annotated protein:Serine/threonine-protein kinase PLK2 (EC 2.7.11.21) (Polo-like kinase 2) (PLK-2) (Serine/threonine-protein kinase SNK) (Serum-inducible kinase). Gene symbol: PLK2. Taxonomy: Rattus norvegicus (Rat). Uniprot ID: Q9R012
antibody wiki:
SynGO gene info:SynGO data @ PLK2
Ontology domain:Cellular Component
SynGO term:postsynapse (GO:0098794)
Annotated paper:Pak DT, et al. "Targeted protein degradation and synapse remodeling by an inducible protein kinase" Science. 2003 Nov 21;302(5649):1368-73 PMID:14576440
Figure(s):Figure 1, 4
Annotation description:Figure 1-3: in COS-7 cells, SNK (PLK2) interacts with, and can degrate, postsynaptic protein SPAR (SIPA1L1). Further, SNK inhibits SPAR-mediated reorganization of actin cytoskeleton.

Figure 4: immunofluorescence stainings in cultured hippocampal neurons showed overexpressed SNK is localized to dendritic spines and induces loss of SPAR, PSD-95 (DLG4), and Bassoon (BSN).

Figure 5: overexpressed SNK induces loss of dendritic spines and increased filopodia in cultured hippocampal neurons.

Figure 6: Synaptic activity induces endogenous SNK and leads to loss of SPAR and PSD-95.
Evidence tracking, Biological System:Non-neuronal tissue
Cultured neurons
Evidence tracking, Protein Targeting:Over-expression
Antibody (detection)
Evidence tracking, Experiment Assay:Confocal
Western blot
IP + WB/MSMS
Y2H
Annotator(s):Frank Koopmans (ORCID:0000-0002-4973-5732)
Guus Smit (ORCID:0000-0002-2286-1587)
Matthijs Verhage (ORCID:0000-0002-2514-0216)
Lab:Department of Functional Genomics, Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
SynGO annotation ID:5464
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology